Paul Hertz NASA Town Hall
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Monte Carlo Simulacija Protojata Galaksija U Cosmos Pregledu Neba
SVEUILITE U ZAGREBU PRIRODOSLOVNO-MATEMATIKI FAKULTET FIZIKI ODSJEK Neven Tomi£i¢ MONTE CARLO SIMULACIJA PROTOJATA GALAKSIJA U COSMOS PREGLEDU NEBA Diplomski rad Zagreb, 2015 SVEUILITE U ZAGREBU PRIRODOSLOVNO-MATEMATIKI FAKULTET FIZIKI ODSJEK SMJER: ISTRAIVAKI Neven Tomi£i¢ Diplomski rad MONTE CARLO SIMULACIJA PROTOJATA GALAKSIJA U COSMOS PREGLEDU NEBA Voditelj diplomskog rada: doc. dr. sc. Vernesa Smol£i¢ Ocjena diplomskog rada: ____________________ Povjerenstvo: 1. _________________________ 2. _________________________ 3. _________________________ Datum polaganja: _____________ Zagreb, 2015 ZAHVALA Zahvalio bih se mentorici doc. dr. sc. Vernesi Smol£i¢, na mentorstvu i voenju kroz ovaj rad. Posebno bih se zahvalio asistentu dipl. ing. Nikoli Baranu za tehni£ku pomo¢ i savjetovanje pri izvedbi simulacija i rada u programskom jeziku IDL. Zahvalio bih se dr. sc. Oskariu Miettinenu i kolegici Niki Jurlin, za pomo¢ i savjetovanje pri analizi protojata. Takoer se zahvaljujem dr. sc. Jacinti Delhaize, mag. phys. Mladenu Novaku i kolegi Kre²imiru Tisani¢u za savjetovanje i pomo¢ pri radu. Zahvalio bih se svojim roditeljima na savjetima za ºivot i za potporu koju mi cijeli ºivot pruºaju na mom putu u znanost. Takoer bih se zahvalio svim svojim profesorima, prija- teljima i kolegama u mom osnovno²kolskom, srednjo²kolskom i fakultetskom obrazovanju, a pogotovo prof. Ankici Ben£ek, prof. Andreji Pehar, prof. Ana-Mariji Kukuruzovi¢ i prof. Josipu Matijevi¢u koji su me usmjeravali prema znanosti. Saºetak Jata tj. skupovi galaksija su veliki virializirani skupovi galaksija. Galaksije do- prinose oko 5% mase jata, unutar-klasterski medij oko 10% mase i tamna tvar do 85% mase. Te strukture su nastale iz protojata galaksija. Protojato je rani oblik jata sa manje galaksija i sa uo£enom ve¢om gusto¢om broja galaksija u odnosu na ostale dijelove promatranog neba. -
REVIEW ARTICLE the NASA Spitzer Space Telescope
REVIEW OF SCIENTIFIC INSTRUMENTS 78, 011302 ͑2007͒ REVIEW ARTICLE The NASA Spitzer Space Telescope ͒ R. D. Gehrza Department of Astronomy, School of Physics and Astronomy, 116 Church Street, S.E., University of Minnesota, Minneapolis, Minnesota 55455 ͒ T. L. Roelligb NASA Ames Research Center, MS 245-6, Moffett Field, California 94035-1000 ͒ M. W. Wernerc Jet Propulsion Laboratory, California Institute of Technology, MS 264-767, 4800 Oak Grove Drive, Pasadena, California 91109 ͒ G. G. Faziod Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 ͒ J. R. Houcke Astronomy Department, Cornell University, Ithaca, New York 14853-6801 ͒ F. J. Lowf Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721 ͒ G. H. Riekeg Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721 ͒ ͒ B. T. Soiferh and D. A. Levinei Spitzer Science Center, MC 220-6, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125 ͒ E. A. Romanaj Jet Propulsion Laboratory, California Institute of Technology, MS 264-767, 4800 Oak Grove Drive, Pasadena, California 91109 ͑Received 2 June 2006; accepted 17 September 2006; published online 30 January 2007͒ The National Aeronautics and Space Administration’s Spitzer Space Telescope ͑formerly the Space Infrared Telescope Facility͒ is the fourth and final facility in the Great Observatories Program, joining Hubble Space Telescope ͑1990͒, the Compton Gamma-Ray Observatory ͑1991–2000͒, and the Chandra X-Ray Observatory ͑1999͒. Spitzer, with a sensitivity that is almost three orders of magnitude greater than that of any previous ground-based and space-based infrared observatory, is expected to revolutionize our understanding of the creation of the universe, the formation and evolution of primitive galaxies, the origin of stars and planets, and the chemical evolution of the universe. -
Wide-Field Infrared Survey Explorer Launch Press
PRess KIT/DECEMBER 2009 Wide-field Infrared Survey Explorer Launch Contents Media Services Information ................................................................................................................. 3 Quick Facts ............................................................................................................................................. 4 Mission Overview .................................................................................................................................. 5 Why Infrared? ....................................................................................................................................... 10 Science Goals and Objectives ......................................................................................................... 12 Spacecraft ............................................................................................................................................. 16 Science Instrument ............................................................................................................................. 19 Infrared Missions: Past and Present ............................................................................................... 23 NASA’s Explorer Program ................................................................................................................. 25 Program/Project Management .......................................................................................................... 27 Media Contacts J.D. Harrington -
Science: Planetary Science Outyears Are Notional
Science: Planetary Science Outyears are notional ($M) 2019 2020 2021 2022 2023 Planetary Science $2,235 $2,200 $2,181 $2,162 $2,143 Ø Creates a robotic Lunar Discovery and Exploration program, that supports commercial partnerships and innovative approaches to achieving human and science exploration goals. Ø Continues development of Mars 2020 and Europa Clipper. Ø Establishes a Planetary Defense program, including the Double Asteroid Redirection Test (DART) and Near-Earth Object Observations. Ø Studies a potential Mars Sample Return mission incorporating commercial partnerships. Ø Formulates the Lucy and Psyche missions. Ø Selects the next New Frontiers mission. Ø Invests in CubeSats/SmallSats that can achieve entirely new science at lower cost. Ø Operates 10 Planetary missions. § OSIRIS-REx will map asteroid Bennu. § New Horizons will fly by its Kuiper belt target. Dawn Image of Ceres on January 13, 2015 20 Science: Astrophysics Outyears are notional ($M) 2019 2020 2021 2022 2023 Astrophysics $1,185 $1,185 $1,185 $1,185 $1,185 Ø Launches the James Webb Space Telescope. Ø Moves Webb into the Cosmic Origins Program within the Astrophysics Account. Ø Terminates WFIRST due to its significant cost and higher priorities elsewhere within NASA. Increases funding for future competed missions and research. Ø Supports the TESS exoplanet mission following launch by June 2018. Ø Formulates or develops, IXPE, GUSTO, XARM, Euclid, and a new MIDEX mission to be selected in FY 2019. Ø Operates ten missions and the balloon project. Ø Invests in CubeSats/SmallSats that can achieve entirely new science at lower cost. Ø All Astrophysics missions beyond prime operations (including SOFIA) will be subject to senior review in 2019. -
ASTR 2310: Chapter 6
ASTR 2310: 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 Other Wavelengths Modern Telescopes Refracting / Reflecting Telescopes 0 Refracting Telescope: Lens focuses light onto the focal plane Focal length Reflecting Telescope: Concave Mirror focuses light onto the focal Focal length plane Almost all modern telescopes are reflecting telescopes. Secondary Optics 0 In reflecting telescopes: Secondary mirror, to re- direct light path towards back or side of incoming light path. Eyepiece: To view and enlarge the small image produced in the focal plane of the primary optics. Disadvantages of 0 Refracting Telescopes • Chromatic aberration: Different wavelengths are focused at different focal lengths (prism effect). Can be corrected, but not eliminated by second lens out of different material. • Difficult and expensive to produce: All surfaces must be perfectly shaped; glass must be flawless; lens can only be supported at the edges. The Best Location for a Telescope0 Far away from civilization – to avoid light pollution The Best Location for a Telescope (II)0 Paranal Observatory (ESO), Chile http://en.wikipedia.org/wiki/Paranal_Observatory On high mountain-tops – to avoid atmospheric turbulence ( seeing) and other weather effects The Powers of a Telescope: 0 Size does matter! 1. Light-gathering power: Depends on the surface area A of the primary lens / D mirror, proportional to diameter squared: A = pi (D/2)2 The Powers of a Telescope (II) 0 2. Resolving power: Wave nature of light => The telescope aperture produces fringe rings that set a limit to the resolution of the telescope. -
UV and Infrared Astronomy
Why Put a Telescope In Space? • Access to light that does not penetrate the atmosphere • No seeing. A telescope can reach the diffraction limit: 1.22 l/D radians Astronomy in Space. I. UV Astronomy Ultraviolet Astronomy 912-3650 Å (Lyman Limit to Balmer jump) • Continuua of hot stars (spectral types O,B,A) • H I Lyman lines (1-n transitions) • Resonance lines of Li-like ions C IV, N V, O VI • H2 Lyman and Werner bands Normal incidence optics • Special UV-reflective coatings The Far Ultraviolet 912 to 1150 Å • Defined by Lyman limit, MgF cutoff at 1150 Å • LiF + Al reflects longward of 1050 Å • SiC reflects at shorter wavelengths The Astronomy Quarterly, Vol. 7, pp. 131-142, 1990 0364-9229f90 $3.00+.00 Printed in the USA. All rights reserved. Copyright (c) 1990 Pergamon Press plc ASTRONOMICAL ADVANTAGES History OFAN • 9/1/1946: Lyman Spitzer EXTRA-TERRESTRIAL OBSERVATORY proposed a Space Telescope in LYMAN SPITZER, Jr. ’ a Report to project Rand This study points out, in a very preliminary way, the results that might be expected from astronomical measurements made with a satellite • 1966: Spitzer (Princeton) vehicle. The discussion is divided into three parts, corresponding to three different assumptions concerning the amount of instrumentation provided. chairs NASA Ad Hoc In the first section it is assumed that no telescope is provided; in the second a 10-&h reflector is assumed; in the third section some of the results Committee on the "Scientific obtainable with a large reflecting telescope, many feet in diameter, and revolving about the earth above the terrestrial atmosphere, are briefly Uses of the Large Space sketched. -
The Spitzer Space Telescope and the IR Astronomy Imaging Chain
Spitzer Space Telescope (A.K.A. The Space Infrared Telescope Facility) The Infrared Imaging Chain Fundamentals of Astronomical Imaging – Spitzer Space Telescope – 8 May 2006 1/38 The infrared imaging chain Generally similar to the optical imaging chain... 1) Source (different from optical astronomy sources) 2) Object (usually the same as the source in astronomy) 3) Collector (Spitzer Space Telescope) 4) Sensor (IR detector) 5) Processing 6) Display 7) Analysis 8) Storage ... but steps 3) and 4) are a bit more difficult! Fundamentals of Astronomical Imaging – Spitzer Space Telescope – 8 May 2006 2/38 The infrared imaging chain Longer wavelength – need a bigger telescope to get the same resolution or put up with lower resolution Fundamentals of Astronomical Imaging – Spitzer Space Telescope – 8 May 2006 3/38 Emission of IR radiation Warm objects emit lots of thermal infrared as well as reflecting it Including telescopes, people, and the Earth – so collection of IR radiation with a telescope is more complicated than an optical telescope Optical image of Spitzer Space Telescope launch: brighter regions are those which reflect more light IR image of Spitzer launch: brighter regions are those which emit more heat Infrared wavelength depends on temperature of object Fundamentals of Astronomical Imaging – Spitzer Space Telescope – 8 May 2006 4/38 Atmospheric absorption The atmosphere blocks most infrared radiation Need a telescope in space to view the IR properly Fundamentals of Astronomical Imaging – Spitzer Space Telescope – 8 May 2006 5/38 -
NASA Program & Budget Update
NASA Update AAAC Meeting | June 15, 2020 Paul Hertz Director, Astrophysics Division Science Mission Directorate @PHertzNASA Outline • Celebrate Accomplishments § Science Highlights § Mission Milestones • Committed to Improving § Inspiring Future Leaders, Fellowships § R&A Initiative: Dual Anonymous Peer Review • Research Program Update § Research & Analysis § ROSES-2020 Updates, including COVID-19 impacts • Missions Program Update § COVID-19 impact § Operating Missions § Webb, Roman, Explorers • Planning for the Future § FY21 Budget Request § Project Artemis § Creating the Future 2 NASA Astrophysics Celebrate Accomplishments 3 SCIENCE Exoplanet Apparently Disappears HIGHLIGHT in the Latest Hubble Observations Released: April 20, 2020 • What do astronomers do when a planet they are studying suddenly seems to disappear from sight? o A team of researchers believe a full-grown planet never existed in the first place. o The missing-in-action planet was last seen orbiting the star Fomalhaut, just 25 light-years away. • Instead, researchers concluded that the Hubble Space Telescope was looking at an expanding cloud of very fine dust particles from two icy bodies that smashed into each other. • Hubble came along too late to witness the suspected collision, but may have captured its aftermath. o This happened in 2008, when astronomers announced that Hubble took its first image of a planet orbiting another star. Caption o The diminutive-looking object appeared as a dot next to a vast ring of icy debris encircling Fomalhaut. • Unlike other directly imaged exoplanets, however, nagging Credit: NASA, ESA, and A. Gáspár and G. Rieke (University of Arizona) puzzles arose with Fomalhaut b early on. Caption: This diagram simulates what astronomers, studying Hubble Space o The object was unusually bright in visible light, but did not Telescope observations, taken over several years, consider evidence for the have any detectable infrared heat signature. -
Paul Hertz NASA Town Hall with Bonus Material
Paul Hertz Dominic Benford Felicia Chou Valerie Connaughton Lucien Cox Jeanne Davis Kristen Erickson Daniel Evans Michael Garcia Ellen Gertsen Shahid Habib Hashima Hasan Douglas Hudgins Patricia Knezek Elizabeth Landau William Latter Michael New Mario Perez Gregory Robinson Rita Sambruna Evan Scannapieco Kartik Sheth Eric Smith Eric Tollestrup NASA Town Hall with bonus material AAS 235th Meeting | January 5, 2020 Paul Hertz Director, Astrophysics Division Science Mission Directorate @PHertzNASA Posted at http://science.nasa.gov/astrophysics/documents 1 2 Spitzer 8/25/2003 Formulation + SMEX/MO (2025), Implementation MIDEX/MO (2028), etc. Primary Ops ] Extended Ops SXG (RSA) 7/13/2019 Webb Euclid (ESA) 2021 WFIRST 2022 Mid 2020s Ariel (ESA) 2028 XMM-Newton Chandra (ESA) TESS 7/23/1999 12/10/1999 4/18/2018 NuSTAR 6/13/2012 Fermi IXPE Swift 6/11/2008 2021 11/20/2004 XRISM (JAXA) SPHEREx 2022 2023 Hubble ISS-NICER GUSTO 4/24/1990 6/3/2017 2021 SOFIA Full Ops 5/2014 + Athena (early 2030s), Revised November 24, 2019 LISA4 (early 2030s) Outline • Celebrate Accomplishments § Mission Milestones • Committed to Improving § Building an Excellent Workforce § Research and Analysis Initiatives • Program Update § Research & Analysis, Technology, Fellowships § ROSES-2020 Preview • Missions Update § Operating Missions and Senior Review § Webb, WFIRST § Other missions • Planning for the Future § FY20 Budget § Project Artemis § Supporting Astro2020 § Creating the Future 5 NASA Astrophysics Celebrate Accomplishments https://www.nasa.gov/2019 7 NASA Astrophysics -
Cosmic Origins Newsletter, September 2017, Vol. 6, No. 2
National Aeronautics and Space Administration Cosmic Origins Newsletter September 2017 Volume 6 Number 2 Summer 2017 Cosmic Origins (COR) Inside this Issue Program Update Summer 2017 Cosmic Origins (COR) Program Update ...............1 Mansoor Ahmed, COR Program Manager Hubble Captures Massive Dead Disk Galaxy that Challenges Susan Neff, COR Program Chief Scientist Theories of Galaxy Evolution .............................................................2 Message from the Astrophysics Division Director .........................3 Welcome to the September 2017 Cosmic Origins (COR) The Origins Space Telescope (OST) Mission Study ..........................4 newsletter. In this issue, we provide updates on several activities The Large Ultraviolet/Optical/Near-IR Telescope Study ...............4 relevant to COR Program objectives. Although some of these Astrophysics Probe Studies ................................................................5 activities are not under the direct purview of the program, they are Cosmic Origins Suborbital Program: Balloon Program – relevant to COR goals; therefore we try to keep you informed about Stratospheric Terahertz Observatory (STO) ....................................7 their progress. Star Formation: Herschel Maps Filaments in Giant Molecular The article byPaul Hertz (Director, NASA Astrophysics) Cloud RCW106 ...................................................................................9 provides an overview of the state of the NASA Astrophysics Webb Status and Progress .................................................................10 -
Astronomy and Astrophysics Advisory Committee for 2017
Director’s Office 933 North Cherry Avenue Steward Observatory P.O. Box 210065 URL: www.as.arizona.edu Tucson, AZ 85721-0065 Telephone: (520) 621-6524 [email protected] March 15, 2018 Dr. France A. Córdova, Director National Science Foundation 2415 Eisenhower Avenue, Suite 19000 Alexandria, VA 22314 Mr. Robert M. Lightfoot, Jr., Acting Administrator Office of the Administrator NASA Headquarters Washington, DC 20546-0001 Mr. Richard Perry, Secretary of Energy U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 The Honorable John Thune, Chairman Committee on Commerce, Science and Transportation United States Senate Washington, DC 20510 The Honorable Lisa Murkowski, Chairwoman Committee on Energy & Natural Resources United States Senate Washington, DC 20510 The Honorable Lamar Smith, Chairman Committee on Science, Space and Technology United States House of Representatives Washington, DC 20515 Dear Dr. Córdova, Mr. Lightfoot, Secretary Perry, Chairman Thune, Chairwoman Murkowski, and Chairman Smith: I am pleased to transmit to you the annual report of the Astronomy and Astrophysics Advisory Committee for 2017. The Astronomy and Astrophysics Advisory Committee was established under the National Science Foundation Authorization Act of 2002 Public Law 107-368 to: (1) assess, and make recommendations regarding, the coordination of astronomy and astrophysics programs of the Foundation and the National Aeronautics and Space Administration, and the Department of Energy; Arizona’s First University – Since 1885 Dr. -
Proceedings of Spie
FIREBall-2: advancing TRL while doing proof- of-concept astrophysics on a suborbital platform Item Type Article Authors Hamden, Erika T.; Hoadley, Keri; Martin, Christopher; Schiminovich, David; Milliard, Bruno; Nikzad, Shouleh; Augustin, Ramona; Balard, Philippe; Blanchard, Patrick; Bray, Nicolas; Crabill, Marty; Evrard, Jean; Gomes, Albert; Grange, Robert; Gross, Julia; Jewell, April D.; Kyne, Gillian; Lemon, Michele; Lingner, Nicole; Matuszewski, Matt; Melso, Nicole; Mirc, Frédéri; Montel, Johan; Ong, Hwei Ru; O'Sullivan, Donal; Pascal, Sandrine; Pérot, Etienne; Picouet, Vincent; Saccoccio, Muriel; Smiley, Brian; Soors, Xavier; Tapie, Pierre; Vibert, Didier; Zenone, Isabelle; Zorilla, Jose Citation Hamden, E. T., Hoadley, K., Martin, D. C., Schiminovich, D., Milliard, B., Nikzad, S., ... & Crabill, M. (2019, May). FIREBall-2: advancing TRL while doing proof-of-concept astrophysics on a suborbital platform. In Micro-and Nanotechnology Sensors, Systems, and Applications XI (Vol. 10982, p. 1098220). International Society for Optics and Photonics. DOI 10.1117/12.2518711 Publisher SPIE-INT SOC OPTICAL ENGINEERING Journal MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS XI Rights © 2019 SPIE. Download date 26/09/2021 12:47:53 Item License http://rightsstatements.org/vocab/InC/1.0/ Version Final published version Link to Item http://hdl.handle.net/10150/634782 PROCEEDINGS OF SPIE SPIEDigitalLibrary.org/conference-proceedings-of-spie FIREBall-2: advancing TRL while doing proof-of-concept astrophysics on a suborbital platform Erika