Particle Astrophysics At Brown We are the Particle Astrophysics research group at Brown University, The Casefor dark matter, why Xenon is an Excellent Detector Medium pdf ppt http://particleastro.brown.edu/homeframe.html
Extractions: Welcome! We are the Particle Astrophysics research group at Brown University, which is part of the wider Cosmology and Astrophyics Program of the Brown University Physics Dept . Our group consists of faculty, post docs, graduate students, and undergraduates conducting experimental work in astrophysics and high energy physics. We are involved in two research collaborations, CDMS II and XENON , both of which aim to learn more about WIMP dark matter. Group Leader: Prof Rick Gaitskell, Brown University [ email / personal web ]. Please contact him directly for research opportunities, and also take time to look at our web site. Dan Silverman's Senior Thesis : "Study of Liquid Xenon Detector for WIMP Dark Matter" pdf Prof. Rick Gaitskell interviewed on WBSR [Listen to the archived show]
Astrophysics Astrophysics research at Columbia essentially spans the entire observable Searches for dark matter weakly interacting massive particles (WIMPs), http://columbia-physics.net/research/astrophysics1.htm
Extractions: The Columbia Astrophysics Laboratory ( CAL ) is a joint enterprise of the Physics and Astronomy Departments. Graduate students in either department are encouraged to select advisors on the basis of interest rather than affiliation. There are in addition at least a dozen postdoctoral researchers working in both departments. Astrophysics research at Columbia essentially spans the entire observable electromagnetic spectrum: gamma-ray (Elena Aprile, Chuck Hailey, Reshmi Mukherjee), X-ray (Chuck Hailey, David Helfand), optical (Arlin Crotts, Jules Halpern, Laura Kay, Joe Patterson), radio (David Helfand, Jacqueline van Gorkum), and microwave (Amber Miller). Astronomical systems of interest include cataclysmic variables, neutron stars, black holes, galactic nuclei, gamma-ray bursts, quasars, galaxies, supernovae, the intergalactic medium, the cosmic microwave background as well as the large scale structure of the universe. Searches for dark matter weakly interacting massive particles (WIMPs), both with an underground direct detection experiment (Elena Aprile) and with a space based experiment (Chuck Hailey) are also part of the research program in particle astrophysics at Columbia.
Astrophysics The Columbia Astrophysics Laboratory (CAL) is a joint enterprise of the Physics Searches for dark matter weakly interacting massive particles (WIMPs), http://columbia-physics.net/graduate_students/research/astrophysics2.htm
Extractions: The Columbia Astrophysics Laboratory ( CAL ) is a joint enterprise of the Physics and Astronomy Departments. Graduate students in either department are encouraged to select advisors on the basis of interest rather than affiliation. There are in addition at least a dozen postdoctoral researchers working in both departments. Astrophysics research at Columbia essentially spans the entire observable electromagnetic spectrum: gamma-ray (Elena Aprile, Chuck Hailey, Reshmi Mukherjee), X-ray (Chuck Hailey, David Helfand), optical (Arlin Crotts, Jules Halpern, Laura Kay, Joe Patterson), radio (David Helfand, Jacqueline van Gorkum), and microwave (Amber Miller). Astronomical systems of interest include cataclysmic variables, neutron stars, black holes, galactic nuclei, gamma-ray bursts, quasars, galaxies, supernovae, the intergalactic medium, the cosmic microwave background as well as the large scale structure of the universe. Searches for dark matter weakly interacting massive particles (WIMPs), both with an underground direct detection experiment (Elena Aprile) and with a space based experiment (Chuck Hailey) are also part of the research program in particle astrophysics at Columbia.
Dark Matter dark matter is among the hottest topics of research in astrophysics. Although thephenomenon has been noticed the first time almost seventy years ago by F. http://www.europhysicsnews.com/full/12/article15/article15.html
Extractions: Oxford University, NAPL, Keble Road, OX1 3RH, UK D ark matter is among the hottest topics of research in astrophysics. Although the phenomenon has been noticed the first time almost seventy years ago by F. Zwicky, in recent times dark matter research entered a new era. Its existence is practically accepted due to independent and converging observations in astrophysics (see also the articles in this special issue by J.M. Lamarre and J.L. Puget and by P.D. Sackett). However, the actual composition of dark matter is yet to be determined. Dark matter as a puzzle inspires astrophysicists and particle physicists, amalgamating these research areas into the rather young discipline of astroparticle physics. To summarize roughly the present status, the overwhelming majority of mass in the universe neither emits nor absorbs light and nobody knows what it is made of. The exercise is clear: to reveal the nature of dark matter and its role in the universe. Mass and energy budget of the Universe
Laura Baudis Direct Detection of WIMP dark matter Theoretical Astrophysics Seminar, Fermilab,April 2000. Search for Rare Events with GENIUS http://www.phys.ufl.edu/~lbaudis/talks.html
Department Of Physics At The University Of Florida Research in major areas such as Astrophysics, Biophysics, Condensed matter, HighEnergy, It seems probable that much of the dark matter is nonbaryonic; http://www.phys.ufl.edu/research/astro.html
Extractions: Baudis Mitselmakher Mueller Reitze ... Sikivie LIGO: The University of Florida is a member of the Laser Interferometer Gravitational-wave Observatory (LIGO) project. This experiment has as its goal the detection and study of gravitational waves. These waves, first predicted by Einstein more than 70 years ago, have never been observed, despite a number of attempts over the last 30 years. The LIGO detector consists of separate laser interferometers in Washington State and Louisiana. These interferometers, essentially very sensitive laser rangefinders, use interferometric techniques to make extremely precise measurement of the distance between test masses located 2.5 miles (4 kilometers) apart. If the test masses are subjected to a gravitational wave, their positions will change in a well-defined way; it is the resulting motion that LIGO is designed to detect. The motivation for having more than one interferometer is to allow discrimination between local disturbances and the gravitational waves. There are many sources of gravitational waves in our universe: collisions of neutron stars, collisions of black holes, supernova events, and relic waves from the birth of the universe in the big bang. The LIGO detector will have the sensitivity to observe these events not only in our own galaxy but also in many of our neighboring galaxies, thus opening an absolutely unique window into these phenomena.
Dark Matter Berkeley Center for Particle Astrophysics dark matter Tutorial Galaxy RotationCurves dark matter Candidates Gravitational Lenses Clusters http://cassfos02.ucsd.edu/public/tutorial/DM.html
Extractions: Dark Matter in the Universe Dark Matter Observations of clusters and their galaxies, have uncovered one of the major mysteries in astronomy today. Clusters appear to be very stable entities - they contain mature galaxies with old stars, and seem to have been formed billions of years ago. But, when we calculate the amount of mass in a cluster using the orbital motions of its member galaxies, the result is too low for the cluster to be gravitationally bound. If the cluster contains only the mass we can observe, the gravitational force is insufficient to prevent the galaxies from "escaping".There must be more mass in the cluster than what we see. the measured values, probably in the form of a massive halo of dark matter. The same problem arises when we look at the galaxies themselves. The rotation curve of a galaxy shows how the orbital velocities of the stars change with distance from the center. If the galaxy rotated as a solid disk, the velocity would increase linearly with distance. If most of the mass were concentrated at the the center, as in our solar system, the velocities of the stars would decrease with the square root of the distance. But, that is not what is observed. Far past the point where no mass is visible, the rotation curves are flat! This means that the mass is still increasing as we move outward, even though we can't see anything! One again we have to call upon "dark matter". The galaxy must extend much farther out than the luminous matter indicates. In fact, the calculations require that there be at least 10 times more mass than we can see! Calculations suggest that this dark matter is likely to be in an extensive halo of dark matter.
Penn Astro-Cosmo Research The astrophysics group in the Department of Physics and Astronomy at Penn The nature of dark matter remains one of the most intriguing unsolved http://www.physics.upenn.edu/guide/astro_research.html
Extractions: People Research Seminars Journal Club ... Department Faculty: Charles Alcock, Mark Devlin, Bhuvnesh Jain, David Koerner, Chung-Pei Ma, Max Tegmark The astrophysics group in the Department of Physics and Astronomy at Penn currently consists of six full time faculty, two lecturers, and a number of postdoctoral fellows and graduate students (photos here ). We are making a seventh faculty appointment in 2001 and plan to continue the expansioN over the next several years. Our areas of research range from origins of planetary systems, variable and low-mass stars, dark matter search, galaxy formation, the cosmic microwave background, to large-scale structure of the universe. Our research activities cover the full spectrum computations, experiments, observations, and theories. Astronomy and astrophysics are enjoying a golden age. The number of new satellite missions, telescopes, ground-based experiments, and computational tools are producing important new data which will inspire new theories of the Universe. There are many exciting projects for students to join. Bhuvnesh Jain Chung-Pei Ma Max Tegmark Galaxy formation and large-scale structure of the Universe Maps of the nearby Universe produced by astronomers during the past decade have shown that galaxies the building blocks of the Universe are not randomly distributed on the sky. Galaxies come in different shapes, ages, and compositions, and they cluster in interesting patterns surrounded by regions devoid of objects. An understanding of how and why this occurs has been the central quest of research in cosmology and our effort at Penn. We have been using both analytic approximations and state-of-the-art numerical simulations to make theoretical predictions for the properties of dark matter, gas, and galaxies. These predictions are then put to test against astronomical measurements from, for example, the Hubble Space Telescope and the 10-meter Keck telescope in Hawaii, and constraints on fundamental parameters such as the age and the matter content of the Universe can be obtained.
2005 Les Houches International Predoctoral School dark matter and Neutralinos Astronomical observations experimental The astronomical dark matter problem is a major issue in particle astrophysics. http://lappweb.in2p3.fr/conferences/LesHouchesPredoc05/
Extractions: A list of participants is now available - Please check it ! Presentation Lecturers Application Participants General Informations The astronomical dark matter problem is a major issue in particle astrophysics. This new field of research at the frontier between astrophysics, cosmology and particle physics has already gathered scientists in an effort to unravel a particularly tough puzzle that has been resisting our imagination since the thirties. Actualy the Universe seems mostly filled with a yet unknown form of matter. The favorite candidate suggested by high energy physics is the so-called neutralino : a hypothetical massive and neutral species whose existence is implied by the theoretical extensions of the standard subnuclear model but which is still evanescent because of its weak interactions. The aim of this predoctoral school is to review the most convincing astronomical and cosmological evidences as well as the latest amazing developments that already make it possible for experiments to reach down minute sensitivities and to test theoretical predictions. Lectures will be given by young and very active researchers and assistant professors who are renowned specialists of that field.
October Astrophysics Conference In Maryland 2 August 10, 1994 5th Annual October Astrophysics Conference in Maryland dark matter We anticipate that this year s conference, entitled dark matter, http://www.astro.umd.edu/october/bull2.1994.html
Extractions: The Conference will be held at the University Conference Center (formerly the Center of Adult Education) at the University of Maryland, College Park, MD. It will run for three days, Monday through Wednesday, October 10-12, 1994. This will be the fifth in a series of topical conferences that are arranged each autumn by scientists at the Goddard Space Flight Center and the University of Maryland. Each of the conferences is devoted to a single topic in astrophysics research, and is organized to elicit the free discussion of ideas. We anticipate that this year's conference, entitled Dark Matter, will be as successful as were the four previous conferences: After the First Three Minutes, Testing the AGN Paradigm, Back to the Galaxy, and The Evolution of X-Ray Binaries. The conference will be devoted to the discussion of new data and ideas associated with astrophysical evidence for Dark Matter on all scales. It will be organized into sessions that are 2 to 2-1/2 hours in duration. A typical session will include two or three formal invited talks (each about 30-minutes) and might also include a few 5 to 10-minute oral contributions selected by the session chair from the submitted poster abstracts. The chair will encourage free discussion of the session topic (if the privilege is not abused, any attendee might have one minute to present one viewgraph as part of the discussions). Short oral contributions are selected from abstracts that were received prior to the August 1 deadline indicated in Bulletin #1. Authors of papers selected for short presentations (AND ONLY THOSE AUTHORS) will be informed before October 1 if you are not contacted please do NOT call the conference organizers or the session chairs. Programme
1994 October Astrophysics Conference In Maryland The 1994 October Astrophysics Conference in Maryland is devoted to dark matter .Bulletin 1 (not available); Bulletin 2 (August 10, 1994) contains detailed http://www.astro.umd.edu/october/1994.html
Extractions: Select a discipline Biomedical Sciences Chemistry Computer Science Economics Education Engineering Environmental Sciences Geography Geosciences Humanities Law Life Sciences Linguistics Materials Mathematics Medicine Philosophy Popular Science Psychology Public Health Social Sciences Statistics preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900180-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900170-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900190-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900200-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900369-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900344-0,00.gif'); Please select Africa Asia Australia / Oceania Europe Germany North America South America Switzerland United Kingdom
Extractions: Select a discipline Biomedical Sciences Chemistry Computer Science Economics Education Engineering Environmental Sciences Geography Geosciences Humanities Law Life Sciences Linguistics Materials Mathematics Medicine Philosophy Popular Science Psychology Public Health Social Sciences Statistics preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,4-0-17-900180-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,4-0-17-900170-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,4-0-17-900190-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,4-0-17-900200-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,4-0-17-900369-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,4-0-17-900344-0,00.gif'); Please select Africa Asia Australia / Oceania Europe Germany North America South America Switzerland United Kingdom
Extractions: Openbook Linked Table of Contents Front Matter, pp. i-xxiv Executive Summary, pp. 1-16 1. Recommendations, pp. 17-50 2. The Science Behind the Recommendations, pp. 51-94 3. The New Initiatives: Building on the Current Program, pp. 95-136 4. Benefits to the Nation from Astronomy, pp. 137-158 5. The Role of Astronomy in Education, pp. 159-176 6. Policy for Astronomy and Astrophysics, pp. 177-208 References, pp. 209-212 Appendix: Definitions, pp. 213-228 Index, pp. 229-246 GO TO PAGE:
Poster Abstracts - Astrophysics Poster Abstracts Astrophysics. From Stardust to Us New Insight into Nuclear Microlensing has been used to detect compact baryonic dark matter, http://scienceday.llnl.gov/posters_ap.htm
Extractions: Most of the elements we encounter in everyday life were formed in the cores of massive stars, which end their lives in spectacular deaths heralded by a supernova explosion. These stars die because the conversion from mass to energy predicted by Einstein becomes inefficient as the star forms successively heavier elements. Ultimately the star collapses under its own gravity, a supernova is born, and newly formed heavy elements are expelled into the galaxy. These nuclear ashes eventually become our sun, our planet, and our bodies. We illustrate recent work on the synthesis of elements by stars that die in different ways and show that some elementsincluding zinc, copper and silvermay have their origins in stars so massive they collapse to form black holes. If so, the raw material for the pennies in our pockets is directly associated with the event horizons first predicted by Einstein's theory of gravity. Perspectives on Gamma-Ray Bursts
Columbia University Astronomy And Astrophysics - Directory Astrophysics, hard Xray science/instrumentation, dark-matter, Pupin 1216/Nevis Astrophysics, radiation detectors, dark matter search, Nevis http://www.astro.columbia.edu/directory-group/researcher.html
Extractions: The present phase of work is aimed at solving the problems of building large volume detectors, as researchers hope to produce 400 detectors containing 70 litres of gel each in the next two years. In three years, these detectors will be installed more than two kilometres underground in the Sudbury neutrino observatory as part of a broad international project launched by a consortium of Canadian universities. The detectors must be placed in underground galleries so that no other type of radiation, cosmic or terrestrial, will disturb the experiment, which should extend over several years.
Parallel.html Parallel Sessions Saturday 18 September Cosmic Rays/HE Astrophysics (Katie Freese) Sterile Neutrino dark matter and Cold Electroweak Baryogenesis http://www.cita.utoronto.ca/~cosmo04/Parallel.html
