Extractions: Last years we have seen a remarkable progress of observations by air-borne and satellite-loaded detectors as well as large ground-based telescopes. Cosmological parameters have been precisely determined and hierarchical large-scale structures have been unraveled in detail. Observations of supernovae and gamma ray bursts up to cosmological distances together with possible detections of magnetars and quark stars have revealed the variety of high energy astrophysical phenomena much beyond our expectations. The theoretical understanding, on the other hand, is currently far behind these observational advances.
Hot On The Gas Trail Of Ordinary Dark Matter Professor in Astronomy Astrophysics at the University of Chicago. FUSE hasgreat potential to shed light on this important dark matter problem. http://www.spacedaily.com/news/darkmatter-00d.html
Extractions: Chicago - August 3, 2000 - Astronomers analyzing data from the Far Ultraviolet Spectrographic Explorer satellite have found the interstellar signposts that may lead them to the direct detection of ordinary dark matter in the universe, one of the major quests of modern astronomy. They also have eliminated the possibility that one leading suspect molecular hydrogen accounts for any significant portion of dark matter, the composition of which remains a big mystery. Various lines of evidence have led astronomers to believe that 90 ercent of ordinary matter in the universe, matter made of neutrons and protons, is dark, invisible to them. Now it seems likely, on theoretical grounds, that a significant portion of dark matter may consist of million-degree gas. "We have the equipment to test this theory, one way or the other," York said. "The hot gas is the last great hope. If that doesn't turn out right, then we'll have to start over again." These results, which are based on three months of observations targeting 20 objects outside the galaxy, appear in a special issue of the Astrophysical Journal Letters. The FUSE science team, led by Johns Hopkins University's Warren Moos, includes York at Chicago and other astronomers at Johns Hopkins; University of California, Berkeley; University of Colorado; University of Wisconsin, Madison; Harvard University; NASA's Goddard Space Flight Center, Canada, France, and elsewhere.
Alternate ViewAnalog astronomy and astrophysics, including issues relating to dark matter, darkenergy, The rest of the Universes massenergy is 23% dark matter (ghost http://www.analogsf.com/0307/altview.shtml
Extractions: The Alternate View John G. Cramer LSST: The Dark Matter Telescope Recent astrophysical results tell us that normal matter, the stuff of which galaxies, stars, planets, and people are made, accounts for only about 4.4% of the mass-energy in our Universe. The rest of the Universe’s mass-energy is 23% dark matter (ghost particles of some unknown kind) and 73% dark energy (energy stored in the vacuum itself). One of the main missions of the LSST is to gather images that tell us more about the dark matter. It seems strange that a telescope would be designed to look at dark matter, stuff that emits no light and is known to us only because of its gravitational effects. But those gravitational effects carry their own signature–the gravitational lensing of distant galaxies. In a previous column, "The Rainbows of Gravity," ( Analog , November 1988) I described the way that gravity bends light to produce "Einstein rings" and related streak-images–highly distorted ring-like images of background stars and galaxies. Gravitational lensing tends to stretch and distort the image and can produce the illusion of luminous objects that appear to be millions of light-years in length. Such distortions can be systematically used to get at the underlying mass that produced them.
Boston Globe Online / Health Science / Shedding Light On Dark Matter By the 1970s, the invisible reach of dark matter was seen in so many different These teams, from MIT, the HarvardSmithsonian Center for Astrophysics, http://www.physics.uci.edu/~dbuote/Shedding_light_on_dark_matter .shtml
Singapore Science Centre ScienceNet Astronomy Space Science Observations of the luminous matter only account for 25% of the necessary massdensity. dark matter, matter which does not emit enough light to be seen, http://www.science.edu.sg/ssc/detailed.jsp?artid=6073&type=6&root=6&parent=6&cat
Extractions: Distant galaxies As we look back over 2000 years of astrophysics, we see two enormous peaks of scientific achievement. One is at the beginning of the epoch - the Greek world of Aristotle, Aristarchus and Ptolemy. The other peak is where we are standing now. The achievements in this century, and particularly during the last 50 years, have been immense. Around 330 BC Aristotle recognized that the Sun and Moon are spheres, and that their orbits around the Earth are circular. He showed that the movements of the planets could be constructed from a combination of several circular motions. But after carefully considering the idea that the Sun was at the centre of the orbits, he opted for the Earth as the centre of the solar system. Aristotle correctly explained eclipses of the Sun and Moon, and deduced that the Earth was spherical from its shadow on the Moon. He even made a fair estimate of the Earth's radius. Moreover, he recognized that the stars must be very distant and argued that they too were spherical. He also postulated that they were distributed over a range of distances.
PhysicsWeb - Events - DARK MATTER AND NEUTRALINOS The astronomical dark matter problem is a major issue in particle astrophysics.This new field of research at the frontier between astrophysics, http://physicsweb.org/events/7052
Extractions: http://lappweb.in2p3.fr/conferences/LesHouchesPredoc05/ 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
PSIgate - Physical Sciences Information Gateway Search/Browse Results This is the home page for the dark matter searches in progress at Boulby Mine (North dark matter detection, neutrino astrophysics and neutrino physics. http://www.psigate.ac.uk/roads/cgi-bin/psisearch.pl?limit=0&subject=All&term1=da
PSIgate - Physical Sciences Information Gateway Search/Browse Results dark matter detection, neutrino astrophysics and neutrino physics. This isthe home page for the dark matter searches in progress at Boulby Mine http://www.psigate.ac.uk/roads/cgi-bin/psisearch.pl?term1=particle astrophysics&
Unsolved Problems In Astrophysics, Contents 4.4 dark matter and Baryons in Clusters of Galaxies, 79. 4.5 Is 1? 11.1 Introduction Three Arguments for NonBaryonic dark matter, 221 http://www.sns.ias.edu/~jnb/Books/Unsolved/contents.html
Extractions: Back to Unsolved Problems Preface xiii 1 The Cosmological Parameters 1.1 Introduction 1.2 Why Measure the Parameters? Testing the Physics How Will It All End? 1.3 The State of the Measurements 1.4 Cosmology for the Next Generation 2 In the Beginning... 2.1 The Future Fate of Cosmology 2.2 Testing Inflation 2.3 The Power of the Cosmic Microwave Background 2.4 Cosmic Concordance 2.5 A New Age? 3 Understanding Data Better with Bayesian and Global Statistical Methods 3.1 Introduction 3.2 Combining Experimental Measurements 3.3 Bayesian Combination of Incompatible Measurements 3.4 Another Variant of the Method 3.5 Results for the Hubble Constant 3.6 Conclusion 4 Large-Scale Structure in the Universe 4.1 Introduction 4.2 Clustering and Large-Scale Structure Galaxies and Large-Scale Structure Clusters and Large-Scale Structure 4.3 Peculiar Motions on Large Scales 4.4 Dark Matter and Baryons in Clusters of Galaxies 4.5 Is 4.6 The SDSS and Large-Scale Structure The Sloan Digital Sky Survey Clusters of Galaxies 4.7 Summary
Kavli Gift Brightens Study Of Dark Energy - MIT News Office MIT research on the most exciting questions in astrophysics and space science is little more than the froth on a cosmic ocean of dark matter and energy. http://web.mit.edu/newsoffice/2004/kavli.html
Extractions: Skip to content massachusetts institute of technology advanced search recent research campus by topic ... archives request images subscribe submit news promote news ... media inquiries news office info MIT background contact August 3, 2004 MIT research on the most exciting questions in astrophysics and space science has been recognized by a $7.5 million gift from the Kavli Foundation that will jumpstart new studies of the cosmos. "The Kavli gift allows us to invest in new scientific areas and new technologies at the forefront of these fields," said Professor of Physics Jacqueline N. Hewitt. "We can bring new tools to bear on some of the most interesting questions before us: What is the dark energy that appears to pervade the universe? How did the first star form? How does gravity work?" Hewitt is director of MIT's Center for Space Research, which will be renamed the Kavli Institute for Astrophysics and Space Research (KIASR). "I am extremely pleased that the Kavli Institute for Astrophysics and Space Research at MIT is joining the network of Kavli Institutes," said Kavli Foundation Chairman and philanthropist Fred Kavli. "MIT has an outstanding record of research accomplishments and the KIASR will be a welcome and eminent partner to the other Kavli Institutes." Kavli's lifelong work in instrumentation for the aerospace and automotive industries piqued his interest in the MIT center, which has a unique capacity to design and fabricate highly specialized scientific instrumentation for use in such important initiatives as the Chandra X-Ray Observatory and the LIGO project, which seeks to detect the gravitational waves predicted by Einstein.
EPS 2003 Meeting In Aachen - Transperencies For Particle Particle Astrophysics (dark matter). dark matter. Review of recent progress inSUSY WIMP Theory Leszek Roskowski (CERN) http://eps2003.physik.rwth-aachen.de/transparencies/01/index.php
EPS 2003 Meeting In Aachen - List Of Submitted Abstracts To The Particle Astrophysics (dark matter). Einsteins Light EnergyMass equation (L =c2 61508;m) contradicts the law of c. Contact Person AJAY AJAY SHARMA http://eps2003.physik.rwth-aachen.de/list_abstracts/index.php?sd_id=21
Astrophysics Of The Local Group: Spring 2002 Visiting Lecturers In closing, cold dark matter is not a trivial hypothesis. Cold dark matter couldaccount for up to 30% of the closure density of the universe and is http://www.macalester.edu/astronomy/courses/physics50/spring2002.html
Extractions: Presented in collaboration with Prof. Evan Skillman and the Department of Astronomy, University of Minnesota. Webpage developed by Chrissy Blank (Macalester Physics/Astronomy '03) Visiting Lecturers: Professor Sidney van den Bergh January 31, 2002 Dark Matter in the Local Group Professor Lisa Young February 7, 2002 Gas in Dwarf Spheroidal (dSph) Galaxies Dr. Chris Stubbs February 28, 2002 MACHO (MAssive Compact Halo Objects) Surveys Dr. Abi Saha March 7, 2002 Hubble's Constant From Type Ia Supernovae Dr. Stephen Smartt March 14, 2002 Dr. Eline Tolstoy April 4, 2002 Global Star Formation History Professor Liliya Williams April 9, 2002 Hubble's Constant from Gravitational Lensing Dr. Matthew Shetrone April 18, 2002 Chemical Evolution of dSph Galaxies Dr. Taft Armandroff April 25, 2002 Survey for Dwarf Galaxies Professor Mario Mateo May 2, 2002 Dark Matter in the Local Group Sidney van den Bergh (at left)
Oxford Astrophysics - Seminars Oxford Astrophysics Seminars Summer 2003. Eric Ehayashi. dark matter Halo Structureand Disk Galaxy Rotation Curves. Abstract Rotation curves of disk http://www-astro.physics.ox.ac.uk/seminars/abs/ehayashi1.html
Astrophysics - The Dark Matter Myth PHYSICS & ASTRONOMY The dark matter Myth, Astrophysics Astronomy Forums. Click Here. Click on NewTopic below to start a new topic. Re Ether is The dark matter new http://astronomyphysics.com/read.php?f=2&i=83&t=83
Astrophysical Seminar Neutron rich matter in astrophysics and in the laboratory, Kolloquium at GSI!!! dark matter and dark Energy, review by Sahni in astroph/0403324 http://www.astro.uni-frankfurt.de/seminar.html
IMPRS On Astrophysics: PhD Projects At The IMPRS We also construct dynamical models to investigate the presence of dark matter Physical cosmology CMB, interaction of matter and radiation in the early http://www.imprs-astro.mpg.de/phd_projects.html
Extractions: Basics About us Where we are IMPRS Super visors ... IMPRS Committees Academic Matters PhD Projects PhD Supervisors Degree Requirements Admission at LMU ... Submission of PhD Thesis Teaching Lecturers Courses Previous Courses Lecture Notes Graduate Students IMPRS Students Gallery Events Seminars ... FAQ Misc. Living in Munich Housing MPE Infrared-Astronomy The research of the MPE infrared group centers around infrared and millimeter spectroscopic and very high resolution imaging programs of the Galactic center, AGN and starburst nuclei, galaxy mergers and high redshift galaxies. Key results have been the unambiguous detection of the supermassive black hole in the center of our galaxy through stellar proper motions, and identification of star formation as the main power source of dusty ultraluminous galaxies, by mid-infrared spectroscopy. These results are part of our pursuit of issues like existence and formation of black holes in galactic nuclei, nature and evolution of (ultra)luminous infrared galaxies, gas dynamics and fuelling of AGN, and the properties of starburst galaxies and the star formation sites in them. Recently, we have extended our studies towards the high redshift universe, addressing the properties of distant infrared galaxies and the dynamics of high z galaxies. Dynamics of merging galaxies in the local Universe Dynamics and masses of high redshift galaxies: Testing galaxy formation models The nature of high redshift infrared galaxies forming in the cosmic infrared background The Black Hole in the center of our Galaxy and its surrounding stellar cluster - a laboratory for understanding black holes
