Probing the Origin of the Universe with the EBEX Balloon-Borne Telescope. Kate Raach University of Minnesota Twin Cities
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1 Probing the Origin of the Universe with the EBEX Balloon-Borne Telescope Kate Raach University of Minnesota Twin Cities
2 History of the Universe Inflation: Universe expands by a factor of in only seconds = = Image Courtesy WMAP Science Team Time
3 History of the Universe Inflation: Universe expands by a factor of in only seconds. Cosmic Microwave Background (CMB) photons emitted (~ years) Image Courtesy WMAP Science Team Time
4 History of the Universe Inflation: Universe expands by a factor of in only seconds. Cosmic Microwave Background (CMB) photons emitted (~ years) First stars form (~500 million years) Image Courtesy WMAP Science Team Time
5 History of the Universe Inflation: Universe expands by a factor of in only seconds. Cosmic Microwave Background (CMB) photons emitted (~ years) First stars form (~500 million years) Structure Formation: Galaxies, Planets, etc. Image Courtesy WMAP Science Team Time
6 History of the Universe Inflation: Universe expands by a factor of in only seconds. Cosmic Microwave Background (CMB) photons emitted (~ years) First stars form (~500 million years) Structure Formation: Galaxies, Planets, etc. Today (~14 billion years) Image Courtesy WMAP Science Team Time
7 History of the Universe The CMB is a baby picture of the universe Image Courtesy WMAP Science Team Time
8 What can we learn from the CMB? How old is the universe? How did the universe begin? What is the universe made of? Have the contents changed over time? How did the large structures in our universe form? What is the geometry of space (e.g. flat, curved)? How will the universe evolve in the future? ESA Planck Collaboration
9 Polarization Light is a wave with both an amplitude and a direction Wikimedia Commons, User:Heron Unpolarized Polarized
10 The CMB is Polarized E-modes: Density perturbations in the primordial soup B-modes: Gravity waves generated at the time of inflation Krauss, Science May 2010 WMAP Science Team
11 A balloon-borne telescope designed to measure the polarization of the CMB EBEX in a nutshell First science flight from Antarctica in December 2012/January 2013
12 EBEX Collaboration APC Paris Radek Stompor Berkeley Lab Julian Borrill Ted Kisner Brown University Kyle Helson Andrei Korotkov Greg Tucker Cardiff Peter Ade Enzo Pascale Columbia University Daniel Chapman Joy Didier Seth Hillbrand Brad Johnson Michele Limon Amber Miller Britt Reichborn- Kjennerud IAS-Orsay Julien Grain Imperial College Andrew Jaffe Stephen Feeney Donnacha Kirk LAL-Orsay Matthieu Tristram McGill University Kevin Bandura Matt Dobbs Kevin MacDermid Graeme Smecher NIST Gene Hilton Hannes Hubmayr Kent Irwin Carl Reintsema SISSA-Trieste Carlo Baccigalupi Giuseppe Puglisi University of California/Berkeley Adrian Lee Ben Westbrook University of Minnesota/Twin Cities Asad Aboobaker Francois Aubin Chaoyun Bao Bikramjit Chandra Christopher Geach Shaul Hanany (PI) Terry Jones Jeff Klein Michael Milligan Kate Raach Karl Young Kyle Zilic Weizmann Institute of Science Lorne Levinson Ilan Sagiv
13 Long Duration Ballooning (LDB) At Launch At Float (120,000 ft) Asad Aboobaker NASA Columbia Scientific Balloon Facility
14 Antarctic LDB Facility Photo: Asad Aboobaker
15 Antarctic LDB Facility Photo: Daniel Chapman
16 EBEX Telescope Sun Shades Solar Panels Sun Shades 25 ft Ground Shield Ground Shield 6000 lb Suspended Science Weight 2.6 kwatt max provided by panels Photo: Asad Aboobaker
17 EBEX Telescope Star Camera Receiver Secondary Mirror Gyros Readout Electronics Primary Mirror
18 EBEX Detectors mm 3 mm 30 cm 8.6 cm 0.1 mm
19 EBEX Detectors ground technology -> balloon environment testing and characterization operation
20 EBEX Status First science flight was successful 25 days at float, 11 days of cryogens (as predicted) first time this type of detectors recorded science data in a spacelike environment Data recovered January 2013; Instrument recovered November 2013 Data analysis and mapmaking is in progress Photo: Asad Aboobaker
21 EBEX Recovery Photo: Asad Aboobaker
22 EBEX Recovery January 2013 November 2013 Photos: Asad Aboobaker
23 EBEX Recovery Photo: Asad Aboobaker
24 Minnesota State Fair UMN Math & Science Family Fun Fair Lab tours for: EBEXers Around Town grade school students (Girls Day for TCGIS) high school students (QuarkNet, UMN CSE outreach) undergraduate students (prospective physics majors, experimental physics lab) graduate students
25 Acknowledgements Minnesota Space Grant Consortium NASA Canada Space Agency National Science Foundation Canada Research Chairs Program Natural Sciences and Engineering Research Council of Canada Canadian Institute for Advanced Research Science and Technology Facilities Council (UK) Minnesota Supercomputing Institute National Energy Research Scientific Computing Center Rhode Island Space Grant Consortium Funding from Collaborating Institutions Sigma Xi Private Donations Photo: Francois Aubin
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