Syllabus for Astronomy 152

Transcription

1 Syllabus for Astronomy 152 Astronomy 152 Stars, Galaxies, and Cosmology Fall 2016 Semester University of Tennessee, Knoxville Instructor: Dr. Sean Lindsay Office: Room 215 in Nielsen Physics and Astronomy Note that the Physics and Astronomy Main Office is Room 401 in Nielsen Office Hours: Monday, 1:30 2:30 AM; Tuesday 3:30 4:30 PM Section - CRN: ASTR Course Description This course is an introduction to the astronomical study of stars, galaxies, and cosmology. Astronomy is the study of the universe including what it is, what it contains, and what physical principles govern it. As a general astronomy course, we will study the motions of objects in the sky; the historical foundations astronomy; the motion of the planets and stars; the general physical principles of light and how it interacts with matter; and how telescopes operate over the entire wavelength range of the electromagnetic spectrum. With a focus on the astronomical study on objects outside of our Solar System, we will cover the nature of stars; what exists between the stars; the formation, life, and death of all types of stars; exotic objects including white dwarfs, neutron stars, and black holes. We also cover the Milky Way Galaxy, the structure of galaxies, the formation of the large-scale structure in the universe, as well as cosmological issues such as the Big Bang, dark matter, dark energy, and the past, present, and projected future behavior of the universe in the light of modern astrophysics. If time allows, we will expand our study to include planets in orbit around other stars (extrasolar planets) and their planetary systems, and the basic conditions thought to be necessary for life elsewhere in the Universe. As a physical science, the study of astronomy requires mathematical analysis. However, we will keep mathematical analysis to a minimum in this course. Course Textbook Astronomy Today 8 th Edition by Chaisson and McMillan. (with online Mastering Astronomy access) This text is also available in course specific volumes. You may purchase Volume 2 or the Full Text full text version of the text. Available at the UT Bookstore and from online vendors.

2 Course Learning Objectives Upon successful completion of this course, students are expect have a mastery of the following: 1. Understand the fundamental ideas of the scientific method as applied to the science of astronomy. 2. Understand how astronomers collect, analyze, and interpret information on objects beyond Earth. 3. Have an increased understanding on the nature of light and how it interacts with matter. 4. Understand the Sun and other stars, including what they are made of, and that stars energy source is nuclear fusion. 5. Understand the different types of stars, their life-cycles, and the origins of the elements. 6. Understand that we live in the Milky Way Galaxy, which is a spiral galaxy. Know the different types of galaxies in the context of Hubble s Tuning Fork 7. Understand the overall structure of the Universe and the relative size scales between stars, clusters of stars, galaxies, galaxy clusters, superclusters, and the observable universe. 8. Understand our current theories on the origins and development of the universe spanning from the past to the present and to the future. An additional, and perhaps the most important goal of this course is my hope that through the study of astronomy in this course, students will have increased scientific literacy, appreciation for science and astronomy, and an increased public trust in science and scientists. Lectures The purpose of the lectures will be to elucidate to most important aspects of the material covered in the textbook. This will be done through conventional lecturing as well as the use of on-line resources via supplemental Parallel Lectures [See below]. However, the most important way for you to learn the material contained in this course will be to carefully study the textbook and to try to solve as many homework problems as possible. PowerPoint Slides and PDFs of the lectures will be provided prior to the beginning of each class. This provision is NOT meant to be a replacement for note taking, but rather to increase student participation and aid in exam preparation. I HIGHLY ENCOURAGE the taking of handwritten notes (either on printed slides or on paper), as there is an ever-growing body of research indicating improved retention using this method [See this Scientific American Article].

3 Parallel Lectures The lectures of this course are supplemented via the online resource Crash Course Astronomy. In this online short-course, Dr. Phil Plait covers introductory Astronomy. This is not a replacement for my lectures, and the homework and exams will cover material not included in the videos. The assignment of videos will be given at the same time as the chapter reading assignments. Homework Homework assignments in this class will be done online through Pearson s Mastering Astronomy ( platform. In order to gain access to this online homework platform, each student is required to purchase a student access code. All UT Bookstore purchases of Astronomy Today 8 th Edition (both full text and volume 2 versions) include an access code. If you purchase your book from an outside vendor, be sure to select a version that comes with Mastering Astronomy access. Used texts will require you to purchase the access code separately, which can be done at the Mastering Astronomy website while registering for this class. NOTE: TYPICALLY A USED COPY + ACCESS CODE COSTS MORE THAN A NEW BOOK WITH ACCESS CODE. Failure to register for Mastering Astronomy will result in zero credit for the overall homework grade. The homework assignments will be announced at the beginning of each class, and will typically be due one week from the date assigned. The final score for homework will be calculated as a percentage of total points accumulated over the whole semester by the student out of the total obtainable points. The homework score will count 20% towards the final course grade. Late Homework Policy: Late Homework assignments can still be completed for credit. There will be a 5% reduction per day for up to 20 days. Mastering Astronomy Course ID: LINDSAYA152F2016 Examinations There will be four examinations, three during the semester and one final comprehensive test at the end of the semester. The lowest of these four exams will be dropped. The dropping of your lowest exam serves as the main make-up policy for missed exams in this class. In all but the most extreme circumstances, the drop policy allows a student to miss one exam with no penalty to your score. Note that if you miss one of the regular exams, you will be required to take the comprehensive final. The tests are designed to follow the grading scale shown below. However, I reserve the right to curve an exam if any particular exam is deemed overly difficult.

4 In extenuating circumstances, a make-up exam will only be offered with official documentation from The Office of the Dean of Students, which issues formal excuses for illness, family emergency, etc. Each case will be considered individually, and if deemed significant enough to excuse a missed exam, a single make-up exam will be offered near the end of the semester. This make-up exam will be more difficult than regular exams, and it will be comprehensive of all the material covered up to the date offered. All tests are closed-book tests. During tests students are required to bring a pencil or pen. While I design most of my test questions to not require calculators [for the few questions that apply], you may find having a calculator to be helpful. No other material whatsoever will be allowed including headphones/earbuds, smart phones, laptops, etc., During the test students are not allowed to communicate with anybody else, nor are they allowed to try to see the solutions of other students (the exams are scrambled, so your test will be different from your neighbors). Any violation of these exam rules will result in the student receiving a 0 (zero) score on the particular test. A second offense will lead to a grade of F for the course and a report to the Dean of Students and the Student Conduct and Community Standards offices. Tentative Exam Schedule* Test no. Date & Time Expected Content 1 Wednesday, 21 Sept. Chapters Wednesday, 19 October Chapters Wednesday, 21 November Chapters Final Thursday, 8 December, 2:45-4:45 PM * Exact dates subject to change if the need arises. Comprehensive (all chapters) Quizzes There will be several (5-8) quizzes throughout the semester. The purpose of these quizzes is to encourage attendance, check current levels of understanding, and help you prepare for the exams. The quizzes will be 10 questions and will in most cases be announced in advance. If class attendance becomes problematic, I will start making these quizzes be pop quizzes. The reason behind this is not to torture or stress you out, but to encourage attendance. If class attendance is systematically high throughout the semester, I will not have pop quizzes. The lowest quiz grade will be dropped.

5 Attendance Student attendance will be monitored via TEN Notecard Questions asked randomly throughout the semester. Every student is allowed to miss THREE notecard questions with no penalty applied to your final grade. Every notecard question missed after the third will result in a 1.5% reduction to your final course average, for up to a total of -10.5% applied to your final average. Answering all ten notecard questions will earn you +2% to your final average. The Notecard Questions are meant to be fun questions, and will not be graded on correctness. In fact, there will be no correct answer to a notecard question. The questions will all be lighthearted or designed to engage you with the course material in ways that I cannot otherwise monitor given the course structure. Extra Credit The following options for extra credit are available: 1. Night observations (1 point per session, max 2 points) 2. Day observations (1 point per session, max 2 points) 3. Planetarium session* (1 point per session, max 3 points*) * Prior to Exam 1, we will feature specialized planetarium shows, including full dome movies that reinforce course concepts and sessions dedicated to understanding the motions of the stars, Moon, and planets in the sky. +1% is offered for each type of planetarium session. No duplicate sessions will be counted toward extra credit. In total you can only obtain 7 percentage points of extra credit added to your final average for the course! IN ORDER TO ATTEND AN EXTRA CREDIT SESSION, YOU ARE REQUIRED TO SIGN-UP on the sign-up sheets that are provided weekly on the corkboard of Room 108 in Nielsen Physics and Astronomy. The new sheets are normally posted Sunday evening. Note that there are Astronomy 151 and 152 planetarium sessions. You will only receive credit for the Astronomy 151 Planetarium Sessions. Day and Night telescope observation sessions are available from the roof of the Physics building (conducted by Mr. Paul Lewis). For day sessions Mr. Lewis will talk to you and show you features of the solar atmosphere such as sunspots, prominences, plages, etc. You can prepare for these sessions by browsing the chapter in your book on the Sun and making use of the Internet. For evening sessions Mr. Lewis will discuss the various objects that are in the night sky. You

6 meet on the roof of the Physics building, which is accessed through the door at the very top of the East stairwell (near the elevator doors). The Planetarium sessions will take place in the Planetarium, Room 108 of Nielsen Physics and Astronomy. Mr. Paul Lewis will determine the schedule for all extra credit sessions Mr. Lewis's office is on the first floor of the Nielsen Physics next to the elevator doors and his phone number/answering machine is at If it is raining, snowing, or overcast then there will be no viewings. If the night observation is canceled, usually a movie is shown. If you are in doubt that your session will be canceled due to weather call or Mr. Lewis, gplewis@utk.edu, to check. Not showing up without a valid reason can get you barred from future sessions since you will have wasted a time slot that another student could have used. It is also very important that you try to do your observing as early as possible since bad weather usually causes many cancellations of the extra credit sessions. This causes many students to miss their chances for extra credit. Don't let it be you! A stamped form from Mr. Lewis PLUS a one page (or 2-pages double-spaced) typed essay description of your observing trip should be handed in to me for you to get full credit. PLEASE DO NOT TURN IN MATERIALS TO MR. LEWIS. Grading You final score will be calculated using the following weights. Your lowest exam score will be dropped. Grading Weights First test 20% Second test 20% Third test 20% Final exam 20% Homework 20% Quizzes 20% Total 100% *Note: Attendance does not count as part of the formal grade. It only acts as a negative in the case that you fail to fulfill the attendance requirements. A total grade lower than 0% cannot be earned.

7 The following grading scale will be used: Grade when final score is Higher or equal to Lower than A 90% B+ 87% 90% B 80% 87% C+ 77% 80% C 70% 77% D+ 67% 70% D 60% 67% F 0% 60% For this course, I report + s grades, but I do not report s. You are welcome to discuss the grading of a given assignment up to a week after it has been returned to you. After a week the score will not be changed. Honor Code, Collaboration and Plagiarism As a student in this class you are highly encouraged to interact with other students concerning understanding the material. However, this interaction has to be at a level where it increases your general knowledge of astronomy. It can never cross the level to actual plagiarism. If I judge you have copied other sources (online or other students) or you have aided others in plagiarizing your work, you will receive a 0 (zero) score on the particular assignment or test and your final grade will be reduced by a letter grade (A will be B etc.). A second offense will lead to a grade of F for the course and a report to the Dean of Students and Office of Student Conduct and Community Standards. You are required to have an official UT address (name@utk.edu or name@tennessee.edu) and read your on a daily basis, since some of the needed information for this class that cannot be transmitted to you during the lectures or on this web site will be given to you via . In particular, issues like cancellation of classes or last minute changes in assignments. Please remember, that if you are using an existing non-ut account (AOL, Yahoo, etc.) it is your own responsibility to re-route your UT to your preferred account. Disability Students Any student who feels s/he may need an accommodation based on the impact of a disability should contact me privately to discuss your specific needs. Additionally, please contact the Office of Disability Services at in 2227 Dunford Hall to coordinate reasonable accommodations for students with documented disabilities.