... Neutrinos in the Sun . ... But neutrinos are hard to detect. ... Theorists have considered neutrinos to be massless particles but these oscillations would imply that they have a very small (but nonzero) mass. ... A measurable mass for neutrinos would also make them candidates for the mysterious dark matter known to affect the motions of stars and galaxies, while proof of neutrino oscillations would be a step toward resolving the decades old Solar Neutrino Problem . ... NASA Official: Jay Norris. ...

... To shed new light on these mysteries, we combine the gravitational lensing power of 25 massive galaxy clusters with HST's enhanced panchromatic imaging capabilities (WFC3 and the restored ACS) to test structure formation models with unprecedented precision. We have dubbed our program CLASH, which stands for: . ... CLASH: An Innovative Survey to Place New Constraints on the Fundamental Components of the Cosmos using the Hubble Space Telescope . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

... Two Kinds of Non-Baryonic Dark Matter: Cold vs Hot . Non-baryonic dark matter comes in two basic forms: hot and cold. ... A cold dark matter (CDM) universe gives rise to much different structure formation modes than a hot dark matter (HDM) universe. ... Unlike CDM, HDM has one real particle candidate, the neutrino . ... At the point where kT = neutrino rest mass the universe has some horizon size, r hor and variations in neutrino density can only occur on scales larger than r hor . ...

... According to the big bang theory, huge amounts of energy were released, giving rise to matter, antimatter and dark matter. ... The Big Bang Theory has enabled scientists to make certain predictions. ... These particles are the building blocks of matter, antimatter and dark matter. ... This could theoretically happen if the hydrogen was shockheated to over 100000 C. The Big Bang Theory is only a theory and so there is no concrete evidence to suggest that it is entirely correct. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Zwicky (1933) was the first to infer the existence of large quantities of unseen mass, in studies of the dynamics of clusters of galaxies, but it was many years before the ``missing mass'', or dark matter, problem was widely recognised. ...

... June 5, 1998 . Neutrinos in the Sun . ... But neutrinos are hard to detect. ... News: In a tantalizing recent announcement , an international collaboration of Super-K researchers has now presented evidence that the ghostly neutrinos undergo quantum mechanical oscillations, changing their particle identities and quantum properties over time. Theorists have considered neutrinos to be massless particles but these oscillations would imply that they have a very small (but nonzero) mass. ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . Monograph Publications . ... Publications of the ASP (PASP) . ... Astronomy Beat . ... Astronomy in Iran . ... Astronomy is alive and well in this ancient land of contrasts and contradictions. ... But while a lunar calendar is used for religious purposes in the Islamic Republic of Iran, it is the search for dark skies that brings this group here on this New Moon weekend. ... news | ...

... The ideas of Dark Matter and Dark Energy are certainly revolutionary. ... What is Dark Energy? ... The galaxies are much more massive than expected and consist of matter we can detect and something else we can't see i.e. Dark Matter. ... How does Dark Energy fit into the evolution of the universe? ... The mutual gravitational attraction between this matter slows the rate of expansion · Once the universe is beyond a certain size Dark Energy, which is a repulsive force, forces galaxies apart. ...

Bigbang Forum Message . ... Post . ... Dark Matter Candidate . ... Post Message | ... http://people.zeelandnet.nl/smitra/mirror.htm#Articles . ... Mirror matter-type dark matter . ... Only mirror matter-type dark matter is capable of explaining all six of these desirable features. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... The formation of the disks of disk galaxies remains poorly understood. ... Many disk galaxies have only the thin disk component, with no bulge or significant thick disk. ... Almost all disk galaxies have an exponential radial surface brightness distribution. The reason for this exponential form is not known; nor is it known when the exponential form is established. ... We would compare low redshift galaxies observed in the I band with galaxies at z =0.5 in the J band and at z =1 in the H band. ...

... Research . ... The Research Activity of Pasquale Blasi is centered around the study of non-thermal phenomena in Nature, ranging from basic theory of Particle Acceleration in Astrophysics to the origin of Cosmic Rays, from dark matter signals to particle acceleration during the formation of the large scale structure of the Universe. ... Shakti P. Duggal Award, by the International Union for Pure and Applied Physics (IUPAP) in 2003 for research on the origin of Cosmic rays. ... Graduate Students . ...

Status of Experiments for Direct Detection of Particle Dark Matter Peter F. Smith Rutherford Appleton Laboratory, U.K. Three general categories of particle have been considered as can- didates for Galactic Dark Matter - neutrinos, axions and weakly interacting massive particles (WIMPS). ... These would produce low energy nuclear recoils, which are being sought by underground low background scintilla- tor and cryogenic techniques capable of distinguishing these from background events. ...

... Confirm Dark Galaxy Existence . ... New evidence from NASA's Hubble Space Telescope and the Westerbork Synthesis Radio Telescope in the Netherlands has been used to rule out all but one of the ideas put forward to explain the existence of VIRGOHI 21, an intergalactic gas cloud 50 million light-years from the Earth. ... Are there more such dark galaxies out there? ... Credit: R. Minchin / Arecibo Observatory / Cardiff University / Isaac Newton Telescope / Westerbork Synthesis Radio Telescope . ...

... Samara region . ... Professor of the Biochemistry Faculty of Florida International University (Miami, USA), a well-known scientist in the field of quantum chemistry Aleksandr Moiseevich Mebel visited SSAU in the middle of December. ... In addition, in his lectures in SSAU Aleksandr Mebel told about modern methods of quantum chemistry, provides accurate information about the geometric and electronic structure of molecules, the relative energies of the intermediate states and reaction products. ...

... Spectrosc., 90 , 574-579. [ abstract (in English; ASCII file); paper (in Russian; PS file)] . ... Astronomy Letters, 26 , N 10, 679-690. [ abstract (ASCII file); paper (PDF file)] . ... 2001) . ... 72 , N 5, 607-612. [ abstract (ASCII file); paper (PS file)] . ... Scattering and polarization properties of the non-spherical particles. in: Smith W.L., Timofeyev Y.M. (eds.) IRS 2000: Current Problems in Atmospheric Radiation, A.Deepak Publ. (in press) [ abstract (ASCII file); paper (PS file)] . ...

... Most Important Journals . Less Popular Astronomical Journals . Physics . Space, Selectial mechanics, .. Russian Journals . ... Astrophysics & Astronomy . ... Astronomical Journal . ... New Astronomy . ... Publications of the Astronomical Society of the Pacific . ... STScI News . Space Telescope Insitute Newsletter . ... Journal of Astronomical Data . ... Journal of High-Energy Physics (mirror in CERN ) [astro, grav, hi-energy .. ... Journal of Experimental and Theoretical Physics . ...

... Gravitational wave search provides insights into galaxy evolution and mergers . ... milky way . ... Astronomy for Kids . ... Has dark matter ever been detected in or around the Milky Way Galaxy? ... While some scientists claim theyт??ve seen evidence of a т??windт?? of dark-matter particles, most members of the astronomy community believe this was a false detection and direct observation of this mysterious material hasnт??t happened yet. ... Get instant access to subscriber content on Astronomy.com!...

Our publications in 2007 year Pustilnik, S. A.; Tepliakova, A. L.; Kniazev, A. Y.; Burenkov, A. N.; SAO; Russia; SAAO; Africa, South . eprint arXiv:0712.4205, submitted to Astrophysical Bulletin (SAO) (12/2007) . Pustilnik, S. A.; Tepliakova, A. L.; Kniazev, A. Y. eprint arXiv:0712.4007, submitted to Astron.Lett (12/2007) . ... Kniazev, A. Y.; Pustilnik, S. A.; Zucker, D. B. eprint arXiv:0707.4285, submitted to MNRAS (07/2007) . ... eprint arXiv:0707.4288 (07/2007) . ...

Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Illuminating Dark Matter? by Neal Weiner . ... Lecture Series 2010-2011 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... The remainder is dark matter and dark energy. ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...