How to Measure and Record Light Spectrograph. The Photographic plate now obsolete Turbulence
|
|
- John Greene
- 6 years ago
- Views:
Transcription
1 PHYS 1411 Introduction to Astronomy Light and Telescope Chapter 6 Chapter 6 topics we have covered so far Radiation Information from Space Wave properties, light as a wave and particle, Electromagnetic spectrum Optical Properties of light, kinds of optical telescope, powers of telescope (light gathering power, magnification and resolution), telescope mountings, problems with lenses and mirrors. Astronomical Detectors CCD Camera Chapter 6 topics after Exam 2 Radio What is a radio telescope?, advantages and limitations, science we can do. Space Astronomy Why we need space telescope, Hubble Space Telescope (HST), Astronomy at other wavelengths, New Generations of Space Telescope, brief survey of different satellites and space telescopes. Astronomy with High Energy Particles from Space Non-Electromagnetic Astronomy Todays Topics Astronomical Detectors Astronomical Detectors How to Measure and Record Light Spectrograph The Eye Limited ability Astronomical Seeing The Photographic plate now obsolete Turbulence Photomultiplier Very limited in capability Best locations for big telescopes The CCD (Charge Couple Device) Where and Why we choose those locations. Making Digital Image Advances in Optics The Spectrograph adaptive optics Making a Spectrum - Measuring; Tarleton Chemical Composition How good is Tarleton telescope compared to Temperature Hubble telescope Velocity 1
2 CCD Camera Makes Digital Images How does a CCD work? It is a imaging device How does a CCD work? A CCD Image and Pixel Values Mathworks.com Astrophotography Science from multiple wavelength CCD Images NASA NASA 2
3 Science from a CCD Image Spectrographs/Spectrometer Analyzing a sequence of such image gives us this light curve Brightskies.us It is an instrument that allows us to see to colors of white light coming from a star or a hot source Spectrographs/Spectrometer How to make a simple spectrometer A CCD spectrometer has a CCD camera and a Spectrometer A CCD image shows the spectrum Analysis of a Spectrum tells us chemical composition and temperature Popularmechanics.com Spectra of Some Astronomical Objects Spectra of Chemical Elements 3
4 Spectra can give us velocity information Astronomical Image and Sky Conditions What is Astronomical Seeing? The quality of an astronomical image depends on Seeing Light Pollution Location Blurring and twinkling of astronomical image due to turbulent atmosphere and varying refractive index wikipedia Seeing Weather conditions and turbulence in the atmosphere set further limits to the quality of astronomical images Learn about light pollution and steps one can take to mitigate it. Credit: Cengage NOAA Learning
5 Light pollution is an increasing concern Progress can still be made with careful planning Credit: UT Texas McDonald observatory and Pioneers.com Credit: Cengage UT Learning Texas 2016 McDonald observatory and Pioneers.com The Best Locations for a Telescope On high mountain-tops to avoid atmospheric turbulence and other weather effects The Best Locations for a Telescope Far away from Cities to avoid light pollution Advances in Optics Atmospheric Distortions Problem devblogs.nvidia.com 5
6 How to Monitor Turbulence? How to Correct the Image distortions Create an artificial star using lasers to sense turbulence physicsstack.com Use computer to deform the mirrors to required shape to correct for turbulence. physicsstack.com Adaptive Optics Computer-controlled mirror support adjusts the mirror surface (many times per second) to compensate for distortions by atmospheric turbulence Adaptive Optics Gemini Observatory Adaptive Optics Hubble Space Tarleton How Far can we See? Tarleton Hubble Space Maybe a few Billion Light years Magnitude limit Billion Light years Magnitude limit +30 6
7 First Light M13 M13 in Hercules Globular Cluster M42 M42 Orion Nebula Distance Light years Through the Eyes of Hubble Distance 1300 ly Through the Eyes of Hubble M51 Whirlpool Galaxy in Canes Venatici Distance 23,000,000 ly Through the Eyes of Hubble Acknowledgment The slides in this lecture is for Tarleton: PHYS1411/PHYS1403 class use only Images and text material have been borrowed from various sources with appropriate citations in the slides, including PowerPoint slides from Seeds/Backman text that has been adopted for class. 7
3/7/2018. Light and Telescope. PHYS 1411 Introduction to Astronomy. Topics for Today s class. What is a Telescopes?
PHYS 1411 Introduction to Astronomy Light and Telescope Chapter 6 Topics for Today s class Optical Telescopes Big Telescopes Advances in Telescope Designs Telescopes Mountings Problems with Mirrors and
More informationTodays Topics 3/19/2018. Light and Telescope. PHYS 1403 Introduction to Astronomy. CCD Camera Makes Digital Images. Astronomical Detectors
PHYS 1403 Introduction to Astronomy Light and Telescope Chapter 6 Todays Topics Astronomical Detectors Radio Telescopes Why we need space telescopes? Hubble Space Telescopes Future Space Telescopes Astronomy
More informationLight and Telescope 10/24/2018. PHYS 1403 Introduction to Astronomy. Reminder/Announcement. Chapter Outline. Chapter Outline (continued)
PHYS 1403 Introduction to Astronomy Light and Telescope Chapter 6 Reminder/Announcement 1. Extension for Term Project 1: Now Due on Monday November 12 th 2. You will be required to bring your cross staff
More informationLight and Telescope 10/20/2017. PHYS 1411 Introduction to Astronomy. Guideposts (cont d.) Guidepost. Outline (continued) Outline.
PHYS 1411 Introduction to Astronomy Light and Telescope Chapter 6 Guidepost In this chapter, you will consider the techniques astronomers use to study the Universe What is light? How do telescopes work?
More informationLight and Telescope 3/4/2018. PHYS 1403 Introduction to Astronomy. Guideposts (cont d.) Guidepost. Outline (continued) Outline.
PHYS 1403 Introduction to Astronomy Light and Telescope Chapter 6 Guidepost In this chapter, you will consider the techniques astronomers use to study the Universe What is light? How do telescopes work?
More information1. Using, scientists can use a few smaller telescopes to take images with the. 2. To double the resolving power of a telescope, you must.
Chapter 5 Telescopes Multiple Choice Questions 1. Using, scientists can use a few smaller telescopes to take images with the same resolution as a much larger telescope. A. Satellite telescopes B. Charge-coupled
More informationChapter 6 Telescopes: Portals of Discovery
Chapter 6 Telescopes: Portals of Discovery 6.1 Eyes and Cameras: Everyday Light Sensors Our goals for learning: How does your eye form an image? How do we record images? How does your eye form an image?
More informationChapter 6 Telescopes: Portals of Discovery. Agenda. How does your eye form an image? Refraction. Example: Refraction at Sunset
Chapter 6 Telescopes: Portals of Discovery Agenda Announce: Read S2 for Thursday Ch. 6 Telescopes 6.1 Eyes and Cameras: Everyday Light Sensors How does your eye form an image? Our goals for learning How
More informationRefraction is the bending of light when it passes from one substance into another. Your eye uses refraction to focus light.
Telescopes Portals of Discovery Chapter 6 Lecture The Cosmic Perspective 6.1 Eyes and Cameras: Everyday Light Sensors How do eyes and cameras work? Seventh Edition Telescopes Portals of Discovery The Eye
More informationFoundations of Astronomy 13e Seeds. Chapter 6. Light and Telescopes
Foundations of Astronomy 13e Seeds Chapter 6 Light and Telescopes Guidepost In this chapter, you will consider the techniques astronomers use to study the Universe What is light? How do telescopes work?
More informationChapter 5: Telescopes
Chapter 5: Telescopes You don t have to know different types of reflecting and refracting telescopes. Why build bigger and bigger telescopes? There are a few reasons. The first is: Light-gathering power:
More informationLight and Telescope 10/22/2018. PHYS 1403 Introduction to Astronomy. Reminder/Announcement. Chapter Outline. Chapter Outline (continued)
PHYS 1403 Introduction to Astronomy Light and Telescope Chapter 6 Reminder/Announcement 1. Extension for Term Project 1: Now Due on Monday November 12 th 2. You will be required to bring your cross staff
More informationTelescopes: Portals of Discovery Pearson Education, Inc.
Telescopes: Portals of Discovery 6.1 Eyes and Cameras: Everyday Light Sensors Our goals for learning: How do eyes and cameras work? The Eye Refraction Incoming light ray Air Glass Refraction is the bending
More informationAstronomical Tools. Optics Telescope Design Optical Telescopes Radio Telescopes Infrared Telescopes X Ray Telescopes Gamma Ray Telescopes
Astronomical Tools Optics Telescope Design Optical Telescopes Radio Telescopes Infrared Telescopes X Ray Telescopes Gamma Ray Telescopes Laws of Refraction and Reflection Law of Refraction n 1 sin θ 1
More informationChapter 6 Light and Telescopes
Chapter 6 Light and Telescopes Guidepost In the early chapters of this book, you looked at the sky the way ancient astronomers did, with the unaided eye. In chapter 4, you got a glimpse through Galileo
More informationASTR 2310: Chapter 6
ASTR 231: Chapter 6 Astronomical Detection of Light The Telescope as a Camera Refraction and Reflection Telescopes Quality of Images Astronomical Instruments and Detectors Observations and Photon Counting
More informationOptics and Telescopes
Optics and Telescopes Guiding Questions 1. Why is it important that telescopes be large? 2. Why do most modern telescopes use a large mirror rather than a large lens? 3. Why are observatories in such remote
More informationWhat are the most important properties of a telescope? Chapter 6 Telescopes: Portals of Discovery. What are the two basic designs of telescopes?
Chapter 6 Telescopes: Portals of Discovery What are the most important properties of a telescope? 1. Light-collecting area: Telescopes with a larger collecting area can gather a greater amount of light
More informationMore Optical Telescopes
More Optical Telescopes There are some standard reflecting telescope designs used today All have the common feature of light entering a tube and hitting a primary mirror, from which light is reflected
More informationUniverse. Chapter 6. Optics and Telescopes 11/16/2014. By reading this chapter, you will learn. Tenth Edition
Roger Freedman Robert Geller William Kaufmann III Universe Tenth Edition Chapter 6 Optics and Telescopes By reading this chapter, you will learn 6 1 How a refracting telescope uses a lens to form an image
More informationFinal Announcements. Lecture25 Telescopes. The Bending of Light. Parts of the Human Eye. Reading: Chapter 7. Turn in the homework#6 NOW.
Final Announcements Turn in the homework#6 NOW. Homework#5 and Quiz#6 will be returned today. Today is the last lecture. Lecture25 Telescopes Reading: Chapter 7 Final exam on Thursday Be sure to clear
More informationUniverse. Chapter 6. Optics and Telescopes 8/12/2015. By reading this chapter, you will learn. Tenth Edition
Roger Freedman Robert Geller William Kaufmann III Universe Tenth Edition Chapter 6 Optics and Telescopes By reading this chapter, you will learn 6 1 How a refracting telescope uses a lens to form an image
More informationLecture Outline: Chapter 5: Telescopes
Lecture Outline: Chapter 5: Telescopes You don t have to know the different types of optical reflecting and refracting telescopes. It is important to understand the difference between imaging, photometry,
More informationLecture Fall, 2005 Astronomy 110 1
Lecture 13+14 Fall, 2005 Astronomy 110 1 Important Concepts for Understanding Spectra Electromagnetic Spectrum Continuous Spectrum Absorption Spectrum Emission Spectrum Emission line Wavelength, Frequency
More informationWhy Use a Telescope?
1 Why Use a Telescope? All astronomical objects are distant so a telescope is needed to Gather light -- telescopes sometimes referred to as light buckets Resolve detail Magnify an image (least important
More informationPhys 100 Astronomy (Dr. Ilias Fernini) Review Questions for Chapter 5
Phys 100 Astronomy (Dr. Ilias Fernini) Review Questions for Chapter 5 MULTIPLE CHOICE 1. What is the wavelength of the longest wavelength light visible to the human eye? a. 400 nm b. 4000 nm c. 7000 nm
More information7. Telescopes: Portals of Discovery Pearson Education Inc., publishing as Addison Wesley
7. Telescopes: Portals of Discovery Parts of the Human Eye pupil allows light to enter the eye lens focuses light to create an image retina detects the light and generates signals which are sent to the
More informationEarth s Atmosphere & Telescopes. Atmospheric Effects
Earth s Atmosphere & Telescopes Whether light is absorbed by the atmosphere or not depends greatly on its wavelength. Earth s atmosphere can absorb certain wavelengths of light so much that astronomers
More informationHow Light Beams Behave. Light and Telescopes Guiding Questions. Telescopes A refracting telescope uses a lens to concentrate incoming light at a focus
Light and Telescopes Guiding Questions 1. Why is it important that telescopes be large? 2. Why do most modern telescopes use a large mirror rather than a large lens? 3. Why are observatories in such remote
More informationTelescopes, Observatories, Data Collection
Telescopes, Observatories, Data Collection Telescopes 1 Astronomy : observational science only input is the light received different telescopes, different wavelengths of light lab experiments with spectroscopy,
More informationWhat do we do with the image?
Astro 150 Spring 2018: Lecture 7 page 1 Reading: Chapter 6, Sect. 6.4; Chapter 14 + assignment posted on Astro 150 website Homework: questions on special reading - answers due in lecture Thursday Exam
More informationProperties of Thermal Radiation
Observing the Universe: Telescopes Astronomy 2020 Lecture 6 Prof. Tom Megeath Today s Lecture: 1. A little more on blackbodies 2. Light, vision, and basic optics 3. Telescopes Properties of Thermal Radiation
More information@astro_stephi. Telescopes. CAASTRO in the Classroom: National Science Week Stephanie Bernard, University of Melbourne
@astro_stephi Telescopes CAASTRO in the Classroom: National Science Week 2017 Stephanie Bernard, University of Melbourne About me NASA, ESA NASA, JPL The first telescopes Invented in 1600s in the Netherlands
More informationAstronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION
Astronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION CHAPTER 3 Telescopes Lecture Presentation 3.0 Imaging the universe Our original observations of the universe depended on our eyes! What other
More informationChapter 6 Lecture. The Cosmic Perspective Seventh Edition. Telescopes Portals of Discovery Pearson Education, Inc.
Chapter 6 Lecture The Cosmic Perspective Seventh Edition Telescopes Portals of Discovery Telescopes Portals of Discovery 6.1 Eyes and Cameras: Everyday Light Sensors Our goals for learning: How do eyes
More informationAstronomy. Optics and Telescopes
Astronomy A. Dayle Hancock adhancock@wm.edu Small 239 Office hours: MTWR 10-11am Optics and Telescopes - Refraction, lenses and refracting telescopes - Mirrors and reflecting telescopes - Diffraction limit,
More informationAgenda Announce: Visions of Science Visions of Science Winner
7. Telescopes: Portals of Discovery All of this has been discovered and observed these last days thanks to the telescope that I have [built], after having been enlightened by divine grace. Galileo Galilei
More informationAssignments. For Mon. 1 st Midterm is Friday, Oct. 12. Read Ch. 6 Optionally do MT1-sample-problems
Assignments For Mon. Read Ch. 6 Optionally do MT1-sample-problems 1 st Midterm is Friday, Oct. 12 Chapter 5 Light: The Cosmic Messenger Thermal Radiation 1. Hotter objects emit photons with a higher average
More informationMeasuring Light waves
Measuring Light waves We normally measure wavelengths (λ) using nanometers (nm) 1 nm = 10-9 m 400-700 nm Increasing wavelengths (λ)! Visible light has wavelengths between 400-700 nm! To detect other types
More informationChapter 6 Lecture. The Cosmic Perspective. Telescopes Portals of Discovery Pearson Education, Inc.
Chapter 6 Lecture The Cosmic Perspective Telescopes Portals of Discovery 2014 Pearson Education, Inc. Telescopes Portals of Discovery CofC Observatory 6.1 Eyes and Cameras: Everyday Light Sensors Our goals
More informationChapter 5. Telescopes. Copyright (c) The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Chapter 5 Telescopes Copyright (c) The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Why do we need Telescopes? Large collection area for photons than the eye long integration
More informationAstronomy 1 Fall 2016
Astronomy 1 Fall 2016 One person s perspective: Three great events stand at the threshold of the modern age and determine its character: 1) the discovery of America; 2) the Reformation; 3) the invention
More informationBuy-back points tallied and added: 750 points bought-back. Last Withdrawal date: this friday, Oct 31st.
Announcements HW #3: Available online now. Due in 1 week, Nov 3rd, 11pm. Buy-back points tallied and added: 750 points bought-back. Last Withdrawal date: this friday, Oct 31st. Evening Observing: next
More informationToday. Doppler Effect & Motion. Telescopes
Today Doppler Effect & Motion Telescopes The Doppler Effect Doppler ball 2007 Pearson Education Inc., publishing as Pearson Addison-Wesley Doppler Effect for Light Motion away -> redshift Motion towards
More informationTopics for Today. Clicker Q: Radio Waves. Radios. Discussion of how do ROTATING STARS yield Doppler-broadened spectral emission lines
ASTR 1040 Accel Astro: Stars & Galaxies Topics for Today Basic principles of eyes, camera, telescopes Twinkle and absorption by our atmosphere What light gets through, what does not Next lecture: Telescopes
More informationAST 101 Intro to Astronomy: Stars & Galaxies
AST 101 Intro to Astronomy: Stars & Galaxies Telescopes Mauna Kea Observatories, Big Island, HI Imaging with our Eyes pupil allows light to enter the eye lens focuses light to create an image retina detects
More informationPHYS 160 Astronomy Test #2 Fall 2017 Version A
PHYS 160 Astronomy Test #2 Fall 2017 Version A I. True/False (1 point each) Circle the T if the statement is true, or F if the statement is false on your answer sheet. 1. A blackbody emits all of its radiation
More information10/31/2018. Chapter 7. Atoms Light and Spectra. Thursday Lab Announcement. Topics For Today s Class Black Body Radiation Laws
Phys1411 Introductory Astronomy Instructor: Dr. Goderya Chapter 7 Atoms Light and Spectra Thursday Lab Announcement Jonah will start the Lab at 6:00 PM. Two pieces of Glass and HST Lunar Phases Topics
More informationChapter 5. Telescopes. Copyright (c) The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Chapter 5 Telescopes Copyright (c) The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Learning Objectives Upon completing this chapter you should be able to: 1. Classify the
More informationIII. ASTRONOMY TOOLS:
III. ASTRONOMY TOOLS: A. Since light is so important to astronomers, they want to collect as much of it as possible from a given object, and quantitatively study it in great detail. 1. Astronomers use
More informationTelescopes. Lecture 7 2/7/2018
Telescopes Lecture 7 2/7/2018 Tools to measure electromagnetic radiation Three essentials for making a measurement: A device to collect the radiation A method of sorting the radiation A device to detect
More informationFig. 2 The image will be in focus everywhere. It's size changes based on the position of the focal plane.
Instruments 1. Basic Optics 1. Rays of Light 2. Waves of light 3. Basic Imaging Systems 4. A Basic Telescope 5. Aberrations 6. Mirrors 2. Some Real Instruments 1. Galileo's Telescope 2. Keplerian Optics
More informationTools of Modern Astronomy
Tools of Modern Astronomy Are Those Stars Really a Group? 1. Cut ten pieces of thread to different lengths between 5 cm and 25 cm. Tape a 1- cm plastic foam ball to the end of each piece of thread. 2.
More informationLight Pollution. Atmospheric Seeing. Seeing Through the Atmosphere. Atmospheric Absorption of Light
Lec 8: 2 FEB 2012 ASTR 130 - Introductory Astronomy II (Chapter 6) LAST TIME - Optics and Telescopes Basic Functions of a Telescope Reflecting v. Refracting Affects of the Atmosphere TODAY Modern Astronomical
More informationOptical Telescopes. Telescopes. Refracting/Reflecting Telescopes. Physics 113 Goderya
Telescopes Physics 113 Goderya Chapter(s): 6 Learning Outcomes: Optical Telescopes Astronomers use telescopes to gather more light from astronomical objects. The larger the telescope, the more light it
More informationChapter 5 Light: The Cosmic Messenger. Copyright 2012 Pearson Education, Inc.
Chapter 5 Light: The Cosmic Messenger 5.1 Basic Properties of Light and Matter Our goals for learning: What is light? What is matter? How do light and matter interact? What is light? Light is an electromagnetic
More informationAstr 2310 Thurs. March 3, 2016 Today s Topics
Astr 2310 Thurs. March 3, 2016 Today s Topics Chapter 6: Telescopes and Detectors Optical Telescopes Simple Optics and Image Formation Resolution and Magnification Invisible Astronomy Ground-based Radio
More informationAstronomy 114. Lecture 26: Telescopes. Martin D. Weinberg. UMass/Astronomy Department
Astronomy 114 Lecture 26: Telescopes Martin D. Weinberg weinberg@astro.umass.edu UMass/Astronomy Department A114: Lecture 26 17 Apr 2007 Read: Ch. 6,26 Astronomy 114 1/17 Announcements Quiz #2: we re aiming
More informationSummary. Week 7: 10/5 & 10/ Learning from Light. What are the three basic types of spectra? Three Types of Spectra
Week 7: 10/5 & 10/7 Capturing that radiation Chapter 6 (Telescopes & Sensors) Optical to Radio Summary What are we sensing? Matter! Matter is made of atoms (nucleus w/ protons, neutrons & cloud of electrons
More informationTools of Astronomy: Telescopes
Tools of Astronomy: Telescopes Lecture 9 1 Refracting Telescopes Large lens to gather and focus light. Incoming Light Objective Lens Focus Eyepiece 2 Problems w/ Refracting Tel s Must make a large piece
More informationChapter 5 Telescopes
Chapter 5 Telescopes Units of Chapter 5 Telescope Design Images and Detectors The Hubble Space Telescope Telescope Size High-Resolution Astronomy Radio Astronomy Interferometry Space-Based Astronomy Full-Spectrum
More informationChapter 5. Telescopes. Copyright (c) The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Chapter 5 Telescopes Copyright (c) The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Tools of the Trade: Telescopes The Powers of a Telescope Collecting Power Bigger telescope,
More informationLecture Outlines. Chapter 5. Astronomy Today 8th Edition Chaisson/McMillan Pearson Education, Inc.
Lecture Outlines Chapter 5 Astronomy Today 8th Edition Chaisson/McMillan Chapter 5 Telescopes Units of Chapter 5 5.1 Optical Telescopes 5.2 Telescope Size 5.3 Images and Detectors 5.4 High-Resolution Astronomy
More informationTelescopes. Astronomy 320 Wednesday, February 14, 2018
Telescopes Astronomy 320 Wednesday, February 14, 2018 Telescopes gather light and resolve detail A telescope is sometimes called a light bucket. Number of photons collected per second is proportional to
More informationOptics and Telescope. Chapter Six
Optics and Telescope Chapter Six ASTR 111 003 Fall 2007 Lecture 06 Oct. 09, 2007 Introduction To Modern Astronomy I: Solar System Introducing Astronomy (chap. 1-6) Planets and Moons (chap. 7-15) Chap.
More informationBasic Instrumentation
Basic Instrumentation Lecture 4: Telescopes & light Professor Kenny L. Tapp Astronomers rely on instruments that collect, magnify, and/or disperse light. The amount of light that can be collected is determined
More informationChapter 26. Objectives. Describe characteristics of the universe in terms of time, distance, and organization
Objectives Describe characteristics of the universe in terms of time, distance, and organization Identify the visible and nonvisible parts of the electromagnetic spectrum Compare refracting telescopes
More informationTelescopes. Optical Telescope Design. Reflecting Telescope
Telescopes The science of astronomy was revolutionized after the invention of the telescope in the early 17th century Telescopes and detectors have been constantly improved over time in order to look at
More informationTelescopes. Telescopes Key Concepts. glass
Telescopes Telescopes Key Concepts 1) A refracting telescope uses a lens to gather light; a reflecting telescope uses a mirror. ) The main purposes of a telescope are to gather light and resolve fine detail.
More informationThe Milky Way. Mass of the Galaxy, Part 2. Mass of the Galaxy, Part 1. Phys1403 Stars and Galaxies Instructor: Dr. Goderya
Foundations Chapter of Astronomy 15 13e Our Milky Way Seeds Phys1403 Stars and Galaxies Instructor: Dr. Goderya Selected Topics in Chapter 15 A view our Milky Way? The Size of our Milky Way The Mass of
More information9/19/ Basic Properties of Light and Matter. Chapter 5: Light: The Cosmic Messenger. What is light? Lecture Outline
Lecture Outline 5.1 Basic Properties of Light and Matter Chapter 5: Light: The Cosmic Messenger Our goals for learning: What is light? What is matter? How do light and matter interact? What is light? Light
More informationProblem Solving. radians. 180 radians Stars & Elementary Astrophysics: Introduction Press F1 for Help 41. f s. picture. equation.
Problem Solving picture θ f = 10 m s =1 cm equation rearrange numbers with units θ factors to change units s θ = = f sinθ fθ = s / cm 10 m f 1 m 100 cm check dimensions 1 3 π 180 radians = 10 60 arcmin
More informationPhases of ma*er strongly depend on temperature
Phases of ma*er strongly depend on temperature Light and Atoms Remember that each electron is only allowed to have certain energies in an atom. Electrons can absorb light and gain energy or emit light
More informationTelescopes. Optical Telescope Design. Reflecting Telescope
Telescopes The science of astronomy was revolutionized after the invention of the telescope in the early 17th century Telescopes and detectors have been constantly improved over time in order to look at
More informationCollecting Light. In a dark-adapted eye, the iris is fully open and the pupil has a diameter of about 7 mm. pupil
Telescopes Collecting Light The simplest means of observing the Universe is the eye. The human eye is sensitive to light with a wavelength of about 400 and 700 nanometers. In a dark-adapted eye, the iris
More informationThe Main Point. Familiar Optics. Some Basics. Lecture #8: Astronomical Instruments. Astronomical Instruments:
Lecture #8: Astronomical Instruments Astronomical Instruments: Optics: Lenses and Mirrors. Detectors. Ground Based Telescopes: Optical, Infrared, and Radio. Space Based Telescopes. Spacecraft Missions.
More informationThe Distance Modulus. Absolute Magnitude. Chapter 9. Family of the Stars
Foundations of Astronomy 13e Seeds Phys1403 Introductory Astronomy Instructor: Dr. Goderya Chapter 9 Family of the Stars Cengage Learning 016 Topics for Today s Class 1. Recap: Intrinsic Brightness a)
More informationTelescopes. A Warm Up Exercise. A Warm Up Exercise. A Warm Up Exercise. A Warm Up Exercise. Key Ideas:
Telescopes A Warm Up Exercise If we measure the wavelengths of emission lines and absorption lines from the same gas, we find that (ignoring any Doppler shifts) a) Some emission lines shift to the red
More informationIt will cover material up to, but not including, Will consist of a few short-answers, 1-2 short essay, and a few problems + extra credit.
Astronomy 210 Section 1 MWF 1500-1550 134 Astronomy Building This Class (Lecture 13): Thermal Radiation Next Class: Exam #1 on Friday! Thursday Review Session Hour Exam #1 Music: The Space Race is Over
More informationAstro 201: Sept. 23, 2010
Astro 201: Sept. 23, 2010 Turn in IR Camera write- up in front of class Pick up graded HW along side of classroom, will talk about grading in class First MIDTERM: Tuesday, Sept. 28 covers through the end
More informationChapter 5. Telescopes. Dr. Tariq Al-Abdullah
Chapter 5 Telescopes The Tools of Astronomy Dr. Tariq Al-Abdullah Learning Goals: 5.1 Optical Telescopes (The Hubble Space Telescope) 5.2 Telescope Size 5.3 Images and Detectors 5.4 High-Resolution Astronomy
More information10/29/2018. Chapter 7. Atoms Light and Spectra. Reminders. Topics For Today s Class. Hydrogen Atom. The Atom. Phys1411 Introductory Astronomy
Phys1411 Introductory Astronomy Instructor: Dr. Goderya Chapter 7 Atoms Light and Spectra Reminders Topics For Today s Class Project 1 due November 12 th after and during Lab. Extra-credit Homework online.
More informationASTR-1010: Astronomy I Course Notes Section VI
ASTR-1010: Astronomy I Course Notes Section VI Dr. Donald G. Luttermoser Department of Physics and Astronomy East Tennessee State University Edition 2.0 Abstract These class notes are designed for use
More information= λ. Topics for Today. Clicker Q: Radio Waves. Radios. Light Pollution. Problems in Looking Through Our Atmosphere
ASTR 1040 Accel Astro: Stars & Galaxies Prof. Juri Toomre TA: Nick Featherstone Lecture 5 Tues 30 Jan 07 zeus.colorado.edu/astr1040-toomre toomre Topics for Today Twinkle and absorption by our atmosphere
More informationObservational Astronomy - Lecture 3 Telescopes and the Electromagnetic Spectrum
Observational Astronomy - Lecture 3 Telescopes and the Electromagnetic Spectrum Craig Lage New York University - Department of Physics craig.lage@nyu.edu April 1, 2014 1 / 1 The Electromagnetic Spectrum
More informationDoing astronomy with SDSS from your armchair
Doing astronomy with SDSS from your armchair Željko Ivezić, University of Washington & University of Zagreb Partners in Learning webinar, Zagreb, 15. XII 2010 Supported by: Microsoft Croatia and the Croatian
More informationTelescopes and estimating the distances to astronomical objects
Telescopes and estimating the distances to astronomical objects Why do we use telescopes? 1. Light-collecting area: A telescope is a light bucket Q: How much more light can a telescope with a diameter
More informationASTR 1120 General Astronomy: Stars & Galaxies
ASTR 1120 General Astronomy: Stars & Galaxies!AST CLASS Learning from light: temperature (from continuum spectrum) chemical composition (from spectral lines) velocity (from Doppler shift) "ODA# Detecting
More informationDoppler Shifts. Doppler Shift Lecture-Tutorial: Pgs Temperature or Heat? What can we learn from light? Temp: Peak in Thermal Radiation
Doppler Shift Lecture-Tutorial: Pgs. 75-80 Work with a partner or two Read directions and answer all questions carefully. Take time to understand it now! Come to a consensus answer you all agree on before
More informationAstro 1010 Planetary Astronomy Sample Questions for Exam 3
Astro 1010 Planetary Astronomy Sample Questions for Exam 3 Chapter 6 1. Which of the following statements is false? a) Refraction is the bending of light when it passes from one medium to another. b) Mirrors
More informationUniverse Now. 2. Astronomical observations
Universe Now 2. Astronomical observations 2. Introduction to observations Astronomical observations are made in all wavelengths of light. Absorption and emission can reveal different things on different
More informationTelescopes and the Atmosphere
Telescopes and the Atmosphere Our goals for learning How does Earth s atmosphere affect ground-based observations? Why do we put telescopes into space? How does Earth s atmosphere affect ground-based observations?
More informationOn to Telescopes. Imaging with our Eyes. Telescopes and cameras work much like our eyes. ASTR 1120 General Astronomy: Stars & Galaxies !
ASTR 1120 General Astronomy: Stars & Galaxies On to Telescopes!AST CLASS Learning from light: temperature (from continuum spectrum) chemical composition (from spectral lines) velocity (from Doppler shift)
More informationHow do telescopes "see" on Earth and in space?
How do telescopes "see" on Earth and in space? By NASA, adapted by Newsela staff on 03.28.17 Word Count 933 Level 970L TOP IMAGE: The Hubble Space Telescope orbiting in space over Earth. SECOND IMAGE:
More informationWave Description. Transverse and Longitudinal Waves. Physics Department 2/13/2019. Phys1411 Goderya 1. PHYS 1403 Stars and Galaxies
PHYS 1403 Stars and Galaxies for Today s Class 1. How do we explain the motion of energy? 2. What is a wave and what are its properties 3. What is an electromagnetic spectrum? 4. What is a black body and
More informationV. Astronomy Section
EAS 100 Planet Earth Lecture Topics Brief Outlines V. Astronomy Section 1. Introduction, Astronomical Distances, Solar System Learning objectives: Develop an understanding of Earth s position in the solar
More informationToday. Next time. Emission & Absorption lines measuring elemental abundances. Doppler Effect. Telescopes technology to measure with
Today Emission & Absorption lines measuring elemental abundances Doppler Effect measuring motion Telescopes technology to measure with Solar System Overview what s out there? Next time Homework 3 Due Chemical
More information1/29/14. Topics for Today. UV, X-rays and Gamma-rays. Atmospheric Absorption of Light. Why bother with other light? ASTR 1040: Stars & Galaxies
ASTR 1040: Stars & Galaxies Gran Telescopio Canarias, La Palma 10.4m Topics for Today What our atmosphere does to light Magic of adaptive optics Radio telescopes: many dishes make a big one (interferometry
More informationLecture 14: Non-Optical Telescopes. Resolving Power. When light enters a telescope, it is bent slightly:
Lecture 14: Non-Optical Telescopes When light enters a telescope, it is bent slightly: Wave fronts Light rays D The angle of bending limits the resolution of the telescope This depends on the aperture
More informationThe well-composed image was recorded over a period of nearly 2 hours as a series of 30 second long, consecutive exposures on the night of October 5.
Happy Thursday! The well-composed image was recorded over a period of nearly 2 hours as a series of 30 second long, consecutive exposures on the night of October 5. The exposures were made with a digital
More information