1. Astrophysics - Wikipedia, The Free Encyclopedia astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature, and chemical http://en.wikipedia.org/wiki/Astrophysics

Astrophysics From Wikipedia, the free encyclopedia Jump to: navigation search For the journal, see The Astrophysical Journal NGC 4414 , a typical spiral galaxy in the constellation Coma Berenices , is about 56,000 light-years in diameter and approximately 60 million light-years distant. Astrophysics (Greek: Astro - meaning "star", and Greek: physis - meaning "nature") is the branch of astronomy that deals with the physics of the universe , including the physical properties ( luminosity density temperature , and chemical composition) of celestial objects such as galaxies stars planets exoplanets , and the interstellar medium , as well as their interactions. The study of cosmology addresses questions of astrophysics at scales much larger than the size of particular gravitationally-bound objects in the universe. Because astrophysics is a very broad subject, astrophysicists typically apply many disciplines of physics, including mechanics electromagnetism statistical mechanics thermodynamics ... nuclear and particle physics , and atomic and molecular physics . In practice, modern astronomical research involves a substantial amount of physics. The name of a university's department ("astrophysics" or "astronomy") often has to do more with the department's history than with the contents of the programs. Astrophysics can be studied at the bachelors masters , and Ph.D.

2. SAO/NASA ADS: ADS Home Page The astrophysics Data System (ADS) is a NASA-funded project which maintains four bibliographic databases containing more than 4.0 million records Astronomy and astrophysics, Instrumentation, Physics and Geophysics, and preprints in Astronomy. http://adswww.harvard.edu/

Sign on ADS Services Search Browse myADS Mirrors ... Help Other NASA Centers CXC HEASARC IRSA LAMBDA ... SPITZER Related Sites AAS ADEC arXiv CDS ... IAU CfA CfA Chandra Harvard University Smithsonian Institution ... Help Welcome to the Digital Library for Physics and Astronomy This site is hosted by the High Energy Astrophysics Division at the Harvard-Smithsonian Center for Astrophysics The SAO/NASA Astrophysics Data System (ADS) is a Digital Library portal for researchers in Astronomy and Physics, operated by the Smithsonian Astrophysical Observatory (SAO) under a NASA grant. The ADS maintains three bibliographic databases containing more than 8.6 million records: Astronomy and Astrophysics, Physics, and arXiv e-prints. The main body of data in the ADS consists of bibliographic records, which are searchable through highly customizable query forms , and full-text scans of much of the astronomical literature which can be browsed or searched via our full-text search interface. Integrated in its databases, the ADS provides access and pointers to a wealth of external resources, including electronic articles, data catalogs and archives. We currently have links to over 8.6 million records maintained by our collaborators. For more information, please read our page detailing the

3. Astrophysics A short introduction to astrophysics with associated articles on a number of topics. http://www.physicsplanet.com/articles/astrophysics

Physics Planet Sunday October 31, 2010 Homepage Astrophysics Astrophysics Big Bang ... Three Laws of Thermodynamics Astrophysics Astrophysics is the study of the physics of stars and stellar systems and interstellar materials. The laws of physics are applied to astronomical systems to help us understand how these systems came into being, how they work with the other systems and how they cease. The Laws of Newton give an accurate model for the dynamic system of stars. This is the known as the study of stellar dynamics. Newton not only studied dynamics but also calculus in order to further understand the way the planets moved. He came up with a mathematical model that still holds today. His model is still fundamental to the study of star clusters, galaxies and the solar system. Newton�s equation still holds as a good start to model many of the astrophysical systems such as the solar systems, star clusters and galaxies. The reason that Newton�s equation still holds today is due to gravity. Gravity is a long-range force in the universe that has an attraction force in everything in the universe. Gravity was in Newton�s early equation and therefore makes the equation valid for a large amount of astrophysics studies. In stellar dynamics, gravity plays a role as a long-range force. Electromagnetism is also a long-range force but is not considered important in the large scale because the positive and negative charges cancel each other out.

4. Home Page - Astrophysics Science Division - 660 The astrophysics Science Division conducts a broad program of research in astronomy, astrophysics, and fundamental physics. Individual investigations address issues such as the http://astrophysics.gsfc.nasa.gov/

National Aeronautics and Space Administration Goddard Space Flight Center Skip Navigation (press 2) Search: Flight Projects Sciences and Exploration Astrophysics Science Division, Code 660 for Everyone About Us SED Home (600) SED Offices ... Atmospheric Experiments Laboratory (699) Astrophysics Science Division (660) Home Pinwheel of star birth: This image of the spiral galaxy NGC 3982 reveals a rich tapestry of star birth along with its winding arms, marked by pink regions of glowing hydrogen, newborn blue star clusters, and obscuring dust lanes. Swift Observatory plays key role in X-ray nova discovery NASA's Swift satellite performed key follow-up observations of an X-ray nova, as explained on the "Geeked On Goddard" blog by international Swift team member Phil Evans of the University of Leicester in England. http://www.science.psu.edu/news-and-events/2010-news/Nousek10-2010 Picometre precision demonstrated by LISA Pathfinder tests A European team working on the LISA Pathfinder mission has completed an extensive series of ground tests on the spacecraft's optical payload. The tests successfully achieved - for the first time on a spacecraft instrument - the incredible precision that will be required to confirm the existence of gravitational waves. Japanese and U.S. Space Telescopes Reveal Previously Unknown Brilliant X-Ray Explosion in Our Milky Way Galaxy

5. Astrophysics - Definition astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature and chemical http://www.wordiq.com/definition/Astrophysics

Astrophysics - Definition Spiral Galaxy ESO 269-57 Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties ( luminosity density temperature and chemical composition) of astronomical objects such as stars galaxies , and the interstellar medium , as well as their interactions. The study of cosmology is theoretical astrophysics at its largest scale; conversely, since the energies involved in cosmology, especially the Big Bang , are the largest known, the observations of the cosmos also serve as the laboratory for physics at its smallest scales as well. In practice, virtually all modern astronomical research involves a substantial amount of physics. The name of a school's doctoral program ("Astrophysics" or "Astronomy") in many places like the United States often has to do more with the department's history than with the contents of the programs. Contents showTocToggle("show","hide") 1 History 2 Observational astrophysics 3 Theoretical astrophysics 4 Astrophysicists ... 5 See also History Although astronomy is as old as recorded history, it was long separated from the study of physics. In the

6. SAO/NASA ADS: ADS Home Page Search system for abstracts in astrophysics, planetary sciences and solar physics. http://adsabs.harvard.edu/

Sign on ADS Services Search Browse myADS Mirrors ... Help Other NASA Centers CXC HEASARC IRSA LAMBDA ... SPITZER Related Sites AAS ADEC arXiv CDS ... IAU CfA CfA Chandra Harvard University Smithsonian Institution ... Help Welcome to the Digital Library for Physics and Astronomy This site is hosted by the High Energy Astrophysics Division at the Harvard-Smithsonian Center for Astrophysics The SAO/NASA Astrophysics Data System (ADS) is a Digital Library portal for researchers in Astronomy and Physics, operated by the Smithsonian Astrophysical Observatory (SAO) under a NASA grant. The ADS maintains three bibliographic databases containing more than 8.6 million records: Astronomy and Astrophysics, Physics, and arXiv e-prints. The main body of data in the ADS consists of bibliographic records, which are searchable through highly customizable query forms , and full-text scans of much of the astronomical literature which can be browsed or searched via our full-text search interface. Integrated in its databases, the ADS provides access and pointers to a wealth of external resources, including electronic articles, data catalogs and archives. We currently have links to over 8.6 million records maintained by our collaborators. For more information, please read our page detailing the

7. Center For Astrophysics The Harvard Smithsonian Center for Astrophysic s (CfA) is the world's largest and most diverse center for the study of the Universe, comprising the astronomy and astrophysics http://cfa-www.harvard.edu/

Contacts Director's Office CfA Home HCO Home ... Press Room Resources for . . . Scientists Software Users The Public Amateur Astronomers CfA Staff (Intranet) The mission of the Harvard-Smithsonian Center for Astrophysics (CfA) is to advance our knowledge and understanding of the universe through research and education in astronomy and astrophysics. The CfA is a collaboration of HCO and SAO . Some CfA staff are also in the Harvard Department of Astronomy CfA News Press Releases October 15, 2010 How to Weigh a Star Using a Moon How do astronomers weigh a star that's trillions of miles away and way too big to fit on a bathroom scale? In most cases they can't, although they can get a best estimate using computer models of stellar structure. Read More... Weekly Science Updates October 29, 2010 Coronal Mass Ejections The corona of the sun is the hot (over a million kelvin), gaseous outer region of its atmosphere. The corona is threaded by intense magnetic fields that extend upwards from the surface in loops that are twisted and sheared by the convective stirrings of the underlying dense atmosphere. Read More...

8. Astronomy And Astrophysics Course listings, news, press releases, faculty directory, research, contact information, and related links. http://www.astro.ucsc.edu/

9. Astronomy And Astrophysics Introductory essays on astrophysics and astronomy. http://www.hpwt.de/Astroe.htm

10. Astrophysics: Definition From Answers.com n. (used with a sing. verb) The branch of astronomy that deals with the physics of stellar phenomena. astrophysical as ' tro phys ' i cal adj. astrophysicist as ' tro phys http://www.answers.com/topic/astrophysics

11. Astrophysics | General Studies This is a Major and Concentration info page. Director of Undergraduate Studies Prof. Frederik Paerels, 1022 Pupin; 8540181; frits@astro.columbia.edu http://www.gs.columbia.edu/major-title?majorid=1803

12. IOPscience::.. The Astrophysical Journal Devoted to recent developments, discoveries, and theories in astronomy and astrophysics. http://www.iop.org/EJ/journal/apj

Accessibility Links Skip to content Skip to search IOPscience Skip to Journals list Accessibility help ... The Astrophysical Journal All Fields Title/Abstract Author Affiliation Fulltext PACS/MSC Codes Last Week Last Month This Year Last Year 3 Years 5 Years 10 Years All Dates All journals This journal only IOPscience Home Search Collections ... Librarians ISSN 0004-637X (Print) ISSN 1538-4357 (Online) The Astrophysical Journal is the foremost research journal in the world devoted to recent developments, discoveries, and theories in astronomy and astrophysics. Many of the classic discoveries of the twentieth century have first been reported in the Journal. Open Issue Number 1, 2010 November 20 (1-232) Create an alert RSS this journal Volume listings Current volume Number 1, 2010 November 20 Journal archive Vol 724, 2010 Vol 723, 2010 Vol 722, 2010 Vol 721, 2010 Vol 720, 2010 Vol 719, 2010 Vol 718, 2010 Vol 717, 2010 Vol 716, 2010 Vol 715, 2010 Vol 714, 2010 Vol 713, 2010 Vol 712, 2010 Vol 711, 2010 Vol 710, 2010 Vol 709, 2010 Vol 708, 2010 Vol 707, 2009 Vol 706, 2009

13. ScienceDaily: Astrophysics News astrophysics and space science. From microquasars to dark matter, read all the latest astrophysics news and research here. Full text with images, updated daily, free. http://www.sciencedaily.com/news/space_time/astrophysics/

Astrophysics News Sunday, October 31, 2010 Print Email Bookmark Latest News Astronomy Astronomy Black Holes Cosmic Rays Dark Matter ... Stars Cosmology Astrophysics Big Bang Cosmology Solar System Asteroids, Comets and Meteors Jupiter Kuiper Belt Mars ... Xena Space Exploration ESA NASA Satellites Space Exploration ... Books RSS New Insight Into Gaseous and Dust Discs Around Stars full story Precocious Galaxy Cluster Identified by Chandra full story ... Spiral Galaxies Stripped Bare Browse News Stories 1 to 10 of 2,539 stories (369 over past year) view headlines only Stars Black Holes Astronomy ... Astronomers Discover Most Massive Neutron Star Yet Known; Discovery Has Broad Implications for Astrophysics, Nuclear Physics October 27, 2010 full story Stars Extrasolar Planets Astronomy ... Kepler Spacecraft Takes Pulse of Distant Stars: 'Starquakes' Yield New Insights About the Size, Age and Evolution of Stars October 27, 2010 full story Stars Galaxies Astronomy ... Hubble Data Used to Look 10,000 Years Into the Future October 26, 2010 full story Stars Galaxies Extrasolar Planets ... NASA's Kepler Mission Changing How Astronomers Study Distant Stars October 26, 2010 full story Space Telescopes NASA Space Exploration ... Space Telescopes Reveal Previously Unknown Brilliant X-Ray Explosion in Milky Way Galaxy October 22, 2010

14. Introduction To Astrophysics | Yale Video Course Free video course on Introduction to astrophysics by Charles Bailyn of Yale. This course focuses on three particularly interesting areas of astronomy that are advancing very http://academicearth.org/courses/introduction-to-astrophysics

15. Www.astrophysical.org astrophysics Scientific popularization - Scientia Astrophysical Organization astrophysics on astrophysical.org astrophysics is the branch of astronomy that deals with the http://www.astrophysical.org/

A site for popularization of Astrophysics and Astronomy Scientia Astrophysical Organization Astrophysical.org Astronomy ... SAO star catalog Galaxy M31 in Andromeda Horsehead Nebula IC 434 Links Astrometry.org About Astrophysical.org Astrophysics on astrophysical.org Astrophysics is the branch of astronomy that deals with the physical properties of stars , galaxies, and other astronomical objects. Among such characteristics are: temperature, luminosity, color, density and chemical composition of stars. Cosmology is theoretical astrophysics at its largest scale, involving the structure of the whole universe. Astrophysical research is important for physics at atomic and subatomic scales. Most of modern astronomical research involves a substantial amount of physics and can be considered astrophysics. However, astronomy is considered to be separated into 3 traditional branches: astrometry and celestial mechanics are the classical fields of astronomy; astrophysics is the modern field. The current high status of astrophysics is reflected in the naming of institutions involved in astronomical research: the oldest ones are "astronomy" departments or institutes, the newest ones include "astrophysics" in their names, often excluding the word "astronomy". Astrometry and celestial mechanics are so related that they may be considered a single branch: for this reason, the Scientia websites are only two

16. University Of Surrey - Department Of Physics (Research) University of Surrey abridged version of the book astrophysics , with many links to relevant material on astronomy, astrophysics and cosmology. http://www.ph.surrey.ac.uk/astrophysics/index.html

Welcome to Surrey's Teachers' Astrophysics Resource dataBASE (STARBASE). The aim of this site is to: provide academic guidance and information on topics covered in the A-Level astrophysics and cosmology modules provide a one-stop site for access to astrophysics web pages around the world We have done the searching for you. We hope you find STARBASE informative and interesting, please click on the bar below to proceed.

17. Astrophysics - NASA Science Discovering the origin, structure, evolution and destiny of the Universe, and searching for Earthlike planets. http://science.nasa.gov/astrophysics/

Skip to Main Content Header Visit NASA.gov Connect ... Site Map Search Site Go! Home Big Questions Earth Heliophysics ... Home → Astrophysics Astrophysics The Astro2010 Committee has released the new Decadal report. Please visit " Special Events " to learn more. People have gazed at the stars, given them names, and observed their changes for thousands of years. NASA joined the ancient pursuit of knowledge of our universe comparatively recently; nevertheless, in our first half-century of space science we contributed to several major advances in astronomy, including: The International Year of Astronomy has ended, but activities still continue around the world. To learn more, visit: http://www.astronomy2009.org/ Detecting the atmosphere of a planet outside our solar system Completing the first detailed full-sky map of the oldest light in the universe Finding that dark energy is accelerating the expansion of the universe Even so, we still have perplexing and important puzzles to solve. To answer these questions, NASA is planning a series of missions linked by powerful new technologies and complementary approaches with shared science goals. In the first few decades of this new century astronomers will greatly advance the study of classical cosmology: the description of the universe on the largest scales and how it works. We will also begin to write the final chapter of the story of galaxies, witnessing the actual birth of these vast collections of stars.

18. Astrophysics | American Museum Of Natural History News Looking for Life in the ‘Goldilocks Zone’ Wednesday, October 06 . Frederick P. Rose Director of the Hayden Planetarium Neil deGrasse Tyson recently appeared on NBC’s http://www.amnh.org/news/tag/astrophysics/

On Exhibit Plan Your Visit Calendar Science ... Tickets Posts tagged: Astrophysics Wednesday, October 06 Nightly News with Brian Williams to discuss the newly-discovered Gliese 581g, an extrasolar planet in the just-right-for-liquid-water “Goldilocks zone” in relation to its star. You can hear more about this fascinating new discovery during this Sunday’s special Isaac Asimov Debate: Is Earth Unique? Hosted and moderated by Tyson, the debate will feature a panel of experts who will discuss whether extrasolar planets might have the unique conditions needed to support life. The debate is one of the many special activities planned for this weekend’s celebration of the 10-year anniversary of the Tags: Astrophysics Brian Williams NBC Neil deGrasse Tyson ... Stars Category: In the Media Science Catching Up With SciCafe: Neil deGrasse Tyson on Stars and the Universe Wednesday, September 22 Some of the SciCafe events presented last season included a look at the Congo river with Museum curator Melanie Stiassny , who shared her team’s adventures and discoveries in Africa’s waters; a discussion with evolutionary psychologist David M. Buss on human mating strategies in celebration of Valentine’s Day; and Professor Kristin Baldwin’s talk on the future of stem cell research and engineering replacement organs. Last season concluded with a SciCafe featuring astrophysicist and Hayden Planetarium Director  Neil deGrasse Tyson Make sure to check out the fall return of SciCafe on Wednesday, October 6, as Museum curator Mike Shara of the Department of Astrophysics helps celebrate the 10th anniversary of the Rose Center for Earth and Space with a conversation on the next 50 years of space flight.

19. Astrophysics E-Print archive since April of 1992. http://www.arxiv.org/archive/astro-ph

arXiv.org astro-ph Search or Article-id Help Advanced search All papers Titles Authors Abstracts Full text Help pages Astrophysics (since Apr 1992) For a specific paper , enter the identifier into the top right search box. Browse: new (most recent mailing, with abstracts) recent (last 5 mailings) current month's astro-ph listings specific year/month: all months Catch-up: Changes since: 01 (Jan) 02 (Feb) 03 (Mar) 04 (Apr) 05 (May) 06 (Jun) 07 (Jul) 08 (Aug) 09 (Sep) 10 (Oct) 11 (Nov) 12 (Dec) , view results without with abstracts Search within the astro-ph archive Submission statistics: Categories within Astrophysics astro-ph.CO - Cosmology and Extragalactic Astrophysics new recent current month Early universe, cosmic microwave background, cosmological parameters, primordial element abundances, extragalactic distance scale, large-scale structure of the universe. Groups, superclusters, voids, intergalactic medium, cosmological galaxy formation. Particle astrophysics: dark energy, dark matter, baryogenesis, leptogenesis, inflationary models, reheating, monopoles, WIMPs, cosmic strings, primordial black holes, cosmological gravitational radiation astro-ph.EP - Earth and Planetary Astrophysics

20. Astrophysics Authors/titles "new" Submissions received from Mon 18 Oct 10 to Tue 19 Oct 10, announced Wed, 20 Oct 10 http://arxiv.org/list/astro-ph/new

arXiv.org astro-ph Search or Article-id Help Advanced search All papers Titles Authors Abstracts Full text Help pages Astrophysics New submissions Submissions received from Wed 27 Oct 10 to Thu 28 Oct 10, announced Fri, 29 Oct 10 New submissions Cross-lists Replacements [ total of 67 entries: [ showing up to 2000 entries per page: fewer more New submissions for Fri, 29 Oct 10 arXiv:1010.5781 pdf ps other Title: The impact of realistic models of mass segregation on the event rate of extreme-mass ratio inspirals and cusp re-growth Authors: Pau Amaro-Seoane Miguel Preto Comments: Submitted to Class. Quantum Grav.; based on the invited plenary talk of P. Amaro-Seoane at the LISA Symposium 2010 Subjects: Cosmology and Extragalactic Astrophysics (astro-ph.CO) ; Galaxy Astrophysics (astro-ph.GA); General Relativity and Quantum Cosmology (gr-qc) arXiv:1010.5782 pdf ps other Title: The first release of data from the Herschel ATLAS: the SPIRE images Authors: E. Pascale R. Auld A. Dariush L. Dunne ... I. Valtchanov Comments: 8 pages, 4 figures, submitted to MNRAS Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM)

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