... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... Астронет | ... Переменные Звезды | ... Микролинзирование . ... На протяжении последних нескольких лет в рамках проекта MACHO проводятся наблюдения микролинзирования звезд Большого Магелланова Облака - спутника нашей Галактики. Эффект микролинзирования заключается в гравитационной фокусировке света звезды массивным объектом, находящимся на луче зрения между звездой и наблюдателем. ... Согласно некоторым гипотезам, линзами могут являться реликтовые черные дыры или "нейтралинные звезды". ...

... 2003, ApJL, in press . ... 2003, A , in press . HST/STIS observations of rotation of T Tauri jets . ... 2003, Proceedings of "JENAM 2002: The early stages if star formation", in press . ... 2003, ApJ, in press . ... S. Hotzel, J. Harju, C.M. Walmsley . ... E. Habart, A. Abergel, C.M. Walmsley, D. Teyssier . ... Codella, C., Bachiller R., Benedettini M., Caselli P. MNRAS, 2003, in press . ... Bianchi S., Goncalves J., Albrecht M., Caselli P., Chini R., Galli D., Walmsley M. 2003, A 399, L43 . ...

... Bispectrum Speckle Interferometry of the Massive Protostellar Object S140 IRS 1: Evidence for Multiple Outflows . ... P21W Bispectrum speckle interferometry is emplyed to explore the deeply embedded young stellar object S140 IRS 1 and its environment. ... The diffuse structures around IRS 1 seem to trace the interaction of energetic outflows from IRS 1 with the circumstellar material. ...

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2010 > Central Massive Objects: The Stellar Nuclei - Black Hole Connection . ... Science Users Information . ... Observing with ESO Telescopes . ... Science Software . ... ESO Science Newsletter . ... An ESO workshop for observers and theorists to discuss recent progress in our understanding of the formation and evolution of black holes and star clusters in the centres of galaxies and their connection to each...

Using Spitzer Space Telescope and Hubble Space Telescope observations of the superbubble N51D, we have identified three young stellar objects (YSOs) in dust globules and made the first detection of a Herbig-Haro object outside the Galaxy. ... ADS Citation Query . citations = 31 . citations vs. year [year,citations] . 2006,3][2007,3][2008,4][2009,7][2010,5][2011,4][2012,1][2013,1][2014,2][2015,1] . Copyright 2012 Karl D. Gordon All Rights Reserved ...

... Since the reddening found for the stars in Table 13 was small, no reddening correction was attempted. ... These diamonds indicate the positions of very low mass, 3 Myr old, objects from the work of Burrows et al. ... This optical V versus R - I scheme is a very powerful method of detecting very low mass (VLM) objects. ... Because of this, young brown dwarfs are intrinsically no more difficult to observe in the optical than low mass stars at the age of Orionis. ...

... Ever wonder how solar-mass stars form?. ... In order for material to accrete onto a protostar it has to lose angular momentum. The angular momentum of a large natal cloud leads to the formation of a circumstellar disk and inner accretion disk as the cloud collapses. ... Winds generated in the inner disk or close to the stellar surface (we don't know which) expel material along the disk rotation axis. ... This provides the highest resolution observational data on nearby young stars. ...

... Development of Ideas of Structure and Evolution of Stars. Integral Features of Stars, Which Determine Their Structure, Direction and Rate of Evolutuion. ... Connection between Potential and Thermal Energy of Star. ... Structure of a Main Sequence Star. Features of Massive Stars Evolution on the Main Sequence. Internal Structure of the Sun. ... White Dwarfs, Their Features. ... Evolution from the Main Sequence of Massive Stars. ... Evolution of Small Mass Stars till White Dwarfs Sequence. ...

Survey of HI in BCGs . The survey in 21-cm line of HI for "close" (V The analysis of this HI data, together with the results of CCD-imaging and photometry of these galaxies allows to estimate total (dynamical) mass of them. The important result of this work is a conclusion that the mass ratio of luminous and dark matter in dwarf galaxies can vary in very wide range - from 0.1 till more than 0.7-0.8. ... For spirals this ratio on the least massive end (Sm-galaxies) is close to 0.1-0.2. ...

... Indeed, one alteration of orbits can be the outright ejection of a planet. When several big planets are orbiting a star under each other's influence, the system is inherently unstable. ... We know of no good reason why the smallest objects with fusion should have the same mass as the smallest objects that can form by themselves. ... 6) Mission Definition . ... I don't think this mission is impossible, and will suggest a definition in a future article in Mercury. ... Good luck! . ...

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

The Nature of CO Emission in z 6 Quasars Desika Narayanan University of Arizona Radiative Transfer Modeling Chris Walker Romeel DavИ Craig Kulesa Cosmological/Hydro Modeling T.J. Cox Yuexing ... Springel Introduction: z 6 Quasars · 1 Gyr after Big Bang · Host Galaxies allow us to study first collapsed objects · CO Observations probe molecular ISM and let us study coeval evolution of SMBH + Starburst Desika Narayanan , Tucson Workshop August Bertoldi et al, Fan et al. ...

... Observing . ... Star Atlas . ... stars . ... Observing Podcasts . ... Astronomy for Kids . ... SOFIA observations reveal a surprise in massive star formation . ... Researchers using the airborne Stratospheric Observatory for Infrared Astronomy (SOFIA) have captured the most detailed mid-infrared images yet of a massive star condensing within a dense cocoon of dust and gas. ... Most massive binary star identified . ... Only registered members of Astronomy.com are allowed to comment on this article. ...

ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Australia Telescope National Facility Colloquium . ...

1975SvAL.. ... Total number of objects found: 1 . Currently displayed are the first identifier in SIMBAD and the object type. By clicking on the [Dic CAT] anchor, you get the informations from the nomenclature dictionnary for the corresponding catalogue. By clicking on the identifier itself , you get the basic data and all the identifiers from SIMBAD. ... SBC 741 .. ... Dic SBC] . Return to object query page . E-mail to: question@simbad.u-strasbg.fr ...

The Local Group dwarf spheroidal galaxies: A key to the building blocks in the Universe H. Hirashita et al. Kyoto University, Japan Recent studies have been revealing the dark matter content in dwarf spheroidal galaxies (dSphs). ... We select the Local Group dSphs as a sample. ... However, we nd no observational evidence that the tidal forces by giant galaxies a ect the density pro les of the dSphs, which indicates that the stellar systems of the dSphs lie in their deep dark matter potentials. ...

... Events . ... The Event Horizon Telescope: Observing Black Holes with Schwarzschild-Radius Resolution . ... Galaxy lies a super massive black hole - 4 million times more massive . ... Universe to spatially resolve and image a black hole Event Horizon. ... For the much more massive (6 billion solar mass) black hole . ... for assembling a submm-VLBI Event Horizon Telescope. ... emission near the event horizon of super massive black holes. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . Spaceflights Chronology . Chronology of Extravehicular Activity . ISS 45/46 . ... Rocket Space Complexes . ... Launches Chronology . ... Automatic Space Systems . ... HISTORY . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...