Www.physik.unizh.ch/people/lehnerf/seminar/aktuellesTP.txt November P. Di Stefano, Lyon 'LowTemperature dark matter Searches' 04. DezemberF. Hasenbalg, Bern 'First Runs with the ORPHEUS dark matter experiment' 18. http://www.physik.unizh.ch/people/lehnerf/seminar/aktuellesTP.txt
Extractions: AKTUELLES AUS DER TEILCHEN- UND ASTROPHYSIK - WS 2002/03 MITTWOCH, 11h15, Hörsaal 36 K 08, Dauer 60 Minuten Beginn: 30. Oktober 2002 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 30. Oktober R. Wallny, CERN: 'The ATLAS SCT detector' 06. November E. Lunghi, Zurich: Topics in B physics and implications for supersymmetry 13. November S. Calchi Novati, Zurich: 'Microlensing towards the Andromeda Galaxy' 20. November 27. November P. Di Stefano, Lyon: 'Low-Temperature Dark Matter Searches' 04. Dezember J. Damet, Bern: 'The OPERA experiment' 11. Dezember F. Hasenbalg, Bern: 'First Runs with the ORPHEUS dark matter experiment' 18. Dezember T. Hurth, CERN: 'Our Search for New Physics: Opportunities in Flavour Physics' 08. Januar A. Rubbia: 'Orthopositronium as a probe for new physics' 15. Januar cancelled 22. Januar A. van der Schaaf, Zurich: 'A New Test of C-Invariance in pi0 -> 3gamma ?' 29. Januar P. Aufmuth, U Hannover: 'Detection of Gravitational waves with GEO' 05. Februar G. Sigl, Paris: 'Cosmic Ultra-High Energy Radiation as Probes of Physics and Astrophysics at Extreme Energies' +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Astro Physics Some scientists think dark matter is in the form of massive objects, such as blackholes, that hang out around galaxies unseen. dark matter. Smithsonian. http://www.ancient-astronaut.com/astro.htm
Extractions: Scientists using different methods to determine the mass of galaxies have found a discrepancy that suggests ninety percent of the universe is matter in a form that cannot be seen. Some scientists think dark matter is in the form of massive objects, such as black holes, that hang out around galaxies unseen. Other scientists believe dark matter to be subatomic particles that rarely interact with ordinary matter. This paper is a review of current literature. I look at how scientists have determined the mass discrepancy, what they think dark matter is and how they are looking for it, and how dark matter fits into current theories about the origin and the fate of the universe. Mass and Weight. What exactly is mass? Most people would say that mass is what you weigh. But to scientists, mass and weight are different things. Mass is the measure of a quantity of matterhow much stuff there is. Weight, on the other hand, is the effect that gravity has on that stuff. Weight is dependent on massthe more mass you have, the more gravity pulls you down, and the more you weigh. When an astronaut floats in space, we say that the astronaut is weightless. But the astronaut still has a body, and so has mass.
Minutes From First VRVS Of Dark Matter Working Group We all agreed, however, that the highest priority for now, in support of PDR preparations,will be dark matter searches Particle Astro Physics FAX 650926-4335. http://www-glast.slac.stanford.edu/ScienceWorkingGroups/DarkMatter/minutes_April
Extractions: Minutes from first VRVS of Dark Matter Working group. Present: Bergstrom, Bloom, do Cuto e Silva, Dubois(part), Ullio (really tried, but did not make finally connect) The first VRVS meeting starting promptly at 8:30 AM PST, with a number of attendees already present or trying to be present by logging in early to try out the connection. The VRVS worked surprisingly well for the first meeting with only Piero having difficulty logging in properly. We began by discussing the Charge of the working group. 1. Charge of Working group - Searching for Dark Matter using GLAST. This includes the WIMP lines, but also includes more: Wimp Continuum. Galactic Center -Central Black hole and associated structures Dark Molecular Clouds. Galactic Halo. All of the above topics were discussed at some length in the GLAST proposal to the DOE in 1999, and more briefly in the AO response to NASA in 2000. In addition, Lars suggested a couple of other topics. The first was measuring the speed of light vs. energy to test for Planck scale dependences indicated in certain string cosmologies. We finally decided that the underlying phenomenology, and GLAST instrument measurements were very different than the Dark Matter searches mentioned above, and so this search might be more efficiently studied by the Gamma ray burst working group (I know that Jay Norris has a strong interest in this topic). The other suggested topic was using the extra galactic diffuse to put limits on extra dimensions. - Larry Hall at LBNL has done work on this (Reference Lars?). We thought that this topic might be included in our studies as it involves limits in the Extra Galactic diffuse background. Of course, the real progress that GLAST will provide on the Extra Galactic background, beside measuring at higher energies, is the removal of the blazar contribution. This work might leave an interesting remnant that needs explanation or may leave nothing within statistical and systematic errors, which will invite limits.
Previous PIPSS Awards - Round 8 30/06/2004. Abstract. dark matter search is an important topic on the agenda ofPPARC (Road Map item 3.8) and the particle astro physics community worldwide. http://www.pparc.ac.uk/in/sc/lettr/pipss_on_the_web_8.asp
Panagic LSC Canfranc Underground Astroparticle Laboratory, Underground Particleastro-physics. Status Operational. Searches for dark matter. http://www.lngs.infn.it/site/exppro/panagic/sections/particle/experiments/lsc.ht
Extractions: Description of the Laboratory The Canfranc Underground Laboratory is located inside the Somport railway tunnel (6.9 km long, and now closed to traffic), in the Spanish Aragonese Pyrenees, connecting Spa in and France. The main laboratory is located at 2.5 Km from the Spanish entrance (in the Canfranc railway station). Canfranc is 20 Km from Jaca, 175 from Zaragoza and 500 Km from Madrid. The underground facilities consist of two laboratories called and , located respectively at 780 m and 2500 m from the Spanish entrance. is formed by two small rooms (18 m each) excavated at both sides of the tunnel, plus two galleries for storage, of 70 m is a especially excavated gallery [of ~118 m (Lab2) is placed on the railway tracks, and moved along the tunnel to operate at different overburden.
PhysicsWeb - Events - 2nd CMBNET Workshop http//wwwastro.physics.ox.ac.uk/cmbnet/conference/Cospar/cmbnet.htm 20 Feb fromMAP,BOOMERanG, Archeops, MAXIMA.dark Energy, dark matter, Varying Fundamental http://physicsweb.org/events/2669
Overview the smoothness of the cosmic background radiation, and the highly nonlinear structureslike galaxies seen today, could be reconciled in terms of dark matter. http://www.rccp.tsukuba.ac.jp/Astro/overview.html
Extractions: There are a number of open questions concerning the formation of galaxies and stellar/planetary systems. The astrophysics group at the Center pursues research on the formation processes of such objects, which requires large scale numerical simulations. Detail The observations of very distant galaxies show that galaxies formed just one billion years after the Big Bang, which occurred 15 billion years ago. The measurements of the cosmic background radiation have revealed that the early universe was extremely homogeneous. The discrepancy between the smoothness of the cosmic background radiation, and the highly nonlinear structures like galaxies seen today, could be reconciled in terms of dark matter. Also, it is widely accepted that the event of the reionization of the universe took place at the so-called dark age of the universe, say redshifts z>5, because the intergalactic medium (IGM) is observed to have been highly ionized at redshifts z <5. How the universe was reionized is an issue of great interest as well as significance in the light of the near future observations by dozens of potential facilities which would gradually unveil the dark age, in particular the formation of galaxies and quasars. Active Galactic Nuclei [ Detail How the activities of quasars and active galactic nuclei are triggered is a long-standing issue. We consider a novel radiative mechanism due to a circumnuclear starburst. Also, there are recently accumulated a lot of evidences that a massive black hole inhabits the center of a galaxy. The formation of massive black holes is a significant issue in relation to QSO/AGN activities. We pursue the formation of galaxies and massive black holes in dark matter-dominated universes.
University Of Oxford Annual Review - Oxford And Astrophysics of the Subdepartment of Astrophysics can be found at wwwastro.physics.ox.ac the observeduniverse and the nature of the mysterious 'dark matter' that comprises http://www.ox.ac.uk/publicrelations/pubs/annualreview/ar00/02.shtml
Extractions: Go to.... Contents Foreword English at Oxford Oxford and Astrophysics Oxford and China Oxford and Wildlife Oxford and its Collections Oxford and Access Students at Oxford Oxford and Development Oxford around the World Oxford and the Community Planning and Finance New Appointments New Heads of House Honours and Distinctions Honorary Degrees Conferred APPENDICES: 1. Applications and Acceptances 2. Student Numbers in Residence 2iii. Student Numbers/Country of Origin 2iv. Student Numbers/Final Honour School 3. Benefactions 4. Externally Funded Research Grants Dr Gavin Dalton examines one of the 90 sky suvey plates that form the target catalogue for the 2dF Galaxy Redshift Survey. The information has been digitised to form an electronic database of more than 4 million faint galaxies (picture: Phil Sayer) The website of the Subdepartment of Astrophysics can be found at www-astro.physics.ox.ac.uk
Homepage Of Subir Sarkar dark matter; Inflation LargeScale Structure; Weak Interactions NeutrinosPapers on the Web. Past year; Space/astro physics 1977-84 Forthcoming book. http://www-thphys.physics.ox.ac.uk/users/SubirSarkar/
Extractions: Kevin Benson, Wadham, 1991-93 (now at Morgan Stanley, New York Jenni Adams, Magdalen, 1992-95 (now at University of Canterbury, Christ Church Michael Birkel, Linacre, 1994-97 (now at 12SNAP, Munich Sebastian Larsson, Christ Church, 1993-98 Fermin Viniegra , Worcester, 1997-2001 (now at University of Portsmouth) Mario Santos , Wadham, 1999-2002 (now at University of California, Davis David Skinner , Linacre, 1999- Paul Hunt, St John's, 2000- Jack Liddle, Wadham, 2002-
Www.asiaa.sinica.edu.tw/TAN/2002/2002_248 The Center for Academic Excellence on Cosmology and Particle Astro physics ofthe following topics, among others (1) CMB Physics (2) dark matter and dark http://www.asiaa.sinica.edu.tw/TAN/2002/2002_248
Board On Physics And Astronomy Cc rdb@tapir.caltech.edu, Steve Spanglere srs@astro.physics.uiowa.edu , Bruce. onthe Physics of the Universe, ie the nature of the dark matter, is indirectly http://www7.nationalacademies.org/bpa/projects_cpu_proposals_APS_TGPAP.html
Extractions: To q2c@NAS Subject: RE: Community Input to the CPU To: The Committee on the Physics of the Universe We are writing you to provide potential input to the deliberations of the Committee on the Physics of the Universe (CPU). Specifically, we would like to advocate the Topical Group in Plasma Astrophysics (TGPAP) of the American Physical Society as an organization which could facilitate research and dialogue on research in some of the areas identified for attention in the Physics of the Universe Initiative. More generally, we are desirous of increasing the awareness of plasma astrophysics in the astronomy and physics communities. Of the ten topics identified for attention by the Committee of the Physics of the Universe, two, and perhaps three fall in areas of expertise and interest of members of the Topical Group on Plasma Astrophysics. The two definite areas are the origin and nature of the cosmic rays and the processes which lead to the origin of the heavy elements. These problems have a major plasma physics component. The most favored, although still not definitively tested, theory is that of diffusive shock acceleration, which is the nexus of a number of problems in plasma physics, such as linear plasma wave generation, quasilinear theory descriptions of the modification of particle distribution functions by wave-particle interactions, and the physics of collisionless shock waves in plasmas.
Encyclopædia Britannica Covers accelerators, detectors, big bang science, and dark matter. departments,journals, and specific fields such as astronomy, astrophysics, and particle http://search.britannica.com/search?query=particle physics&fuzzy=N&ct=igv&start=
No Title The URL is http//wwwastro.physics.uiowa.edu/ srs composition of the Milky Way andsimilar galaxies; rotation curves, massive halos, and the ``dark matter''. http://www-astro.physics.uiowa.edu/~srs/syllabus/syllabus.html
Extractions: General Astronomy is an introductory course in astronomy primarily intended for majors in astronomy, other physical sciences, computer science, mathematics and engineering. However, there is no reason why any student with a good High School education could not successfully take this course. This is an exciting time to be studying astronomy, with new results from many instruments coming in daily, and the availability of computer networks aiding the distribution of such information. Lectures will be regularly supplemented with such information. General Course Information The class meets from 1:30 to 2:20, Monday, Wednesday, and Friday in Room 70 Van Allen Hall. Office hours for Professor Spangler are 2:30 - 3:30 PM on Tuesdays and by appointment. One hour exams will be held in the regular class period on February 10, March 3, and April 14. The final exam will be held in Room 70 on Thursday, May 13 at
Modern Astronomy (B & E): Cool Astro Links about black holes. Galaxies Cosmology (Part 4), dark matter in galaxiesWhy we think it exists, what it might be. The Hubble Deep http://www-astro.physics.uiowa.edu/~kgg/teaching/modern/links.shtml
Extractions: Pictures The NASA Astronomy Picture of the Day Pictures from the Hubble Space Telescope Pictures of Messier Objects , including nebulae star clusters galaxies A Photo Gallery from the National Space Science Data Center The Automated Telescope Facility (ATF) : This telescope is on the roof of van Allen hall, and is run by Iowa undergraduates! It is available for use by
Imagine The Universe! Dictionary D. dark matter Name given to the amount of mass whose existence is deduced fromthe analysis of galaxy rotation curves but which until now, has escaped all http://imagine.gsfc.nasa.gov/docs/dictionary.html
Extractions: A quantity obtained by multiplying the mass of an orbiting body by its velocity and the radius of its orbit. According to the conservation laws of physics, the angular momentum of any orbiting body must remain constant at all points in the orbit, i.e., it cannot be created or destroyed. If the orbit is elliptical the radius will vary. Since the mass is constant, the velocity changes. Thus planets in elliptical orbits travel faster at periastron and more slowly at apastron . A spinning body also possesses spin angular momentum. apastron
Fate Of The Universe; Cosmology http//astro.physics.sc.edu/SelfPacedUnits/Unit57.html. Hubble .org, HC actualmeasurement http//hubblesite.org/newscenter/archive/1999/19/. Predark matter http://www.geocities.com/Jormabio/archive/fate_of_universe.html
Extractions: Jorma Jyrkkanen, BSc, PDP Dec 24 2002 Three factors are required to predict the fate of the universe, the density, expansion rate and the cosmological constant. These factors have been determined by various methods and what follows below is key to our universes fate. These are then plugged into Einsteins Field equations which describes the behavior of the universe.
Assignment 5 Hence, show that if the particle is to be the dark matter ( ), then it that you weretrying to explain the event to another (astro)physics graduate student who http://cmb.as.arizona.edu/~eisenste/ast541/assignment5/assignment5.html
Extractions: Problem (not to be turned in): From the problem 4 of last week, note that the WMAP satellite claims to have measured this optical depth to be . If you generalize your formula to allow (this is an easy change if you assume that the contribution to the integral is negligible except when ), then you can convert this to a reionization epoch just as the WMAP team did! Problem 1 (5 pts): Consider the relic population of neutrinos. I argued in class that at MeV neutrinos (and antineutrinos) interact quickly enough that they are populated at their thermal abundances. At MeV, the neutrinos stop interacting with the rest of the particles. After that time, the annihilation of the electrons and positrons heats the photons to a temperature that is higher than the temperature of the neutrinos. a) Knowing that the CMB temperature today is 2.725 Kelvin, compute the combined number density of neutrinos and antineutrinos per species today. Remember that a thermal distribution of fermions has 3/4 as many particles as a thermal distribution of bosons at the same temperature. Assume a zero chemical potential throughout. b) If the neutrino (and its antiparticle) has a small mass today, then this mass is negligible for the decoupling process at 1 MeV and so the number density is unchanged. Compute the value of
School Programs a natural candidate to account for the dark matter that is of spacetime, matter andantimatter and so of the most important one in particle and astro physics. http://www.kias.re.kr/snp/ph_area_sum.htm
Message 72 Branes 6 Cosmology@ 44 Courses and Tutorials 29 dark matter@ 23 Gravitational basicideas and tests of general relativity url astro.physics.sc.edu http://web.politinfo.com/index.cgi?base=/Science/Physics/Relativity/
