An international group of astronomers, including Dr Simon Jeffery of the Armagh Observatory, has used the Hubble Space Telescope to verify the origin of a very unusual and rare type of star. The group's studies confirm that the so-called "extreme helium stars" are formed by the merger of two white dwarf stars. ... One, dubbed the final-flash (FF) model, suggests an outer helium layer of a cooling white dwarf ignites, producing an extra thermal pulse that balloons the star into a giant. ...

A Lonely Neutron Star . ... Credit Copyright: F. Walter ( SUNY Stony Brook ), WFPC2 , HST , NASA Explanation: How massive can a star get without imploding into a black hole? These limits are being tested by the discovery of a lone neutron star in space. Observations by the Hubble Space Telescope released Wednesday, have been combined with previous observations by the X-ray ROSAT observatory and ultraviolet EUVE observatory for the isolated star at the location of the arrow. ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

... Right: cold gas traced by [CII] emission (red) accreting onto a primeval galaxy (green) at z=7.1 ( Maiolino et al. 2015 ) (image credit: ALMA Press Release ) . ... 2010 , Cicone, Maiolino et al. ... 2012 , Cicone, Maiolino et al. ... Right: observed distribution of the average stellar metallicities of passive and star forming galaxies in the local universe, supporting starvation/strangulation as primary quenching mechanism in low/intermediate mass galaxies ( Peng, Maiolino, Cochrane 2015 ). ...

May 8, 1998 . ... Professor Ron Ekers, Director, CSIRO Australia Telescope National Facility . Tel: (02) 9372 4301 (BH), (02) 9869 8656, email: director@atnf.csiro.au . Dr Brian Boyle, Director, Anglo-Australian Observatory . Tel: (02) 9372 4811 (BH), email: director@aaoepp.aao.gov.au . ... Tel: (02) 9351 2622 (BH), (02) 9922 6368 (AH), email: ems@physics.usyd.edu.au . Dr Dale Frail, US National Radio Astronomy Observatory . ... Picture at http://www.csiro.au/news/blackhole.html . ...

... Each day we feature a different image or photograph of our fascinating universe, along with a brief explanation written by a professional astronomer. November 29, 1995 . Releasing Compton . Credit NASA , STS-37 Crew . Explanation: Named for Nobel laureate physicist Arthur Holly Compton , the Compton Gamma Ray Observatory (CGRO) Satellite was launched in April of 1991 aboard the Space Shuttle Atlantis . CGRO's mission is to explore the Universe at gamma-ray energies. ...

RadioAstron satellite launches Arecibo will participate in observations . Astronomers Create First Four-Continent Telescope (EXPRES Press Releases: science + network ) . ... Arecibo Observatory Astronomers Discover First Near-Earth Triple Asteroid Just 7 Million Miles Away (Press Release) . ... George Mason Student Discovers Galaxy. ... Press Release) . ... Asteroids spin at YORP speed, thanks to the effects of sunlight, Cornell and Belfast astronomers discover (Press Release). ...

... Recent Results . ... last 10 years in ADS) . in SAO press releases . ... observations database) . ... Last update: . ... Measurement of the dark halo shape in polar ring galaxies . Determining the mass of supermassive black hole in galaxy Mrk6 nucleus based on spectropolarimetric observations . The dust jets in the nucleus of comet 29P/Schwassmann-Wachmann 1 . ... New Polar Ring Galaxies . Traces of recent interactions in isolated Seyfert galaxies . ...

... AVO First Science Press Release May 28, 2004 . The first major discovery to be made with the Virtual Observatory was announced today to the press. ... ESA's Press Release . ESO's Press Release . ... UVES Investigates the Environment of a Very Remote Galaxy 11 March, 2002 . Observations with ESO's Very Large Telescope (VLT) have enabled an international group of astronomers to study in unprecedented detail the surroundings of a very remote galaxy, almost 12 billion light-years distant. ...

... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

EMBARGOED UNTIL: 9:00 A.M. (EDT) June 10, 1999 PHOTO NO.: ... Credit: M. Heydari-Malayeri (Paris Observatory ) and NASA/ESA NOTE TO EDITORS: Image files are available on the Internet at: http :// oposite.stsci.edu / pubinfo /pr/ 1999 /23 or via links in: http :// oposite.stsci.edu / pubinfo /latest.html http :// oposite.stsci.edu / pubinfo /pictures.html Higher resolution digital versions (300 dpi JPEG and TIFF) of the release images are available at: http :// oposite.stsci.edu / ...

Astronomical Society of the Pacific Announces 2007 Award Winners in Astronomy Research and Education . The Astronomical Society of the Pacific (ASP) announced today the eight winners of its 2007 awards for excellence in astronomy research and education. The ASP's most prestigious award, the Catherine Wolfe Bruce Gold Medal for lifetime achievement in astronomy has been awarded to Martin Harwit, Professor Emeritus of Astronomy, Cornell University. ...

... Дни открытых дверей к юбилею САО РАН (12-14 апреля 2016 г.) . Международная конференция "Dark Ages and White Nights (Spectroscopy of the CMB)" (20-24 июня 2016 г.) . ... Международная конференция MULTI-SPIN GALAXIES - 2016 (26-30 сентября 2016 г.) . Международная астрономическая конференция "Физика звезд: от коллапса до коллапса" (3-7 октября 2016 г.) Архив . ... Подробнее.. ... 10.02.16 . ... БТА в реальном времени . ... Цейсс-1000 в реальном времени . ... Последнее обновление: 22/03/2016 ...

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