... 2009 February 5 . NGC 604: X-rays from a Giant Stellar Nursery . Credit: X-ray: NASA / CXC / R. Tuellmann ( Harvard-Smithsonian CfA ) et al. Optical: NASA/AURA/ STScI . Explanation: Some 3 million light-years distant in nearby spiral galaxy M33 , giant stellar nursery NGC 604 is about 1,300 light-years across, or nearly 100 times the size of the Orion Nebula . ... Intriguingly, NGC 604 itself is divided by a wall of relatively cool gas. ... About APOD | ...

... NGC 604: X rays from a Giant Stellar Nursery . ... Credit Copyright: X-ray: NASA / CXC / R. Tuellmann ( Harvard-Smithsonian CfA ) et al. Optical: NASA/AURA/ STScI Explanation: Some 3 million light-years distant in nearby spiral galaxy M33 , giant stellar nursery NGC 604 is about 1,300 light-years across, or nearly 100 times the size of the Orion Nebula . ... Publications with keywords: NGC 604 - star formation . ... The Cygnus Wall of Star Formation . ... NGC 604: Giant Stellar Nursery . ...

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

The IMF and Star Formation History of the Stellar Clusters in the Vela D Cloud . ... 2005, A , in press . ... M.T. Beltran, J. Brand, R. Cesaroni, F. Fontani, S. Pezzuto, L. Testi, S. Molinari . ... 2005, Proceedings of the IAUS227 "Massive Star Birth: A Crossroads of Astrophysics", in press . ... Francesco Palla . ... Podio, L., Bacciotti, F., Nisini, B., Giannini, T., Massi, F., Eisloeffel, J., Ray, T.P. 2005, Ap Lecture Series, "Cores to Clusters", in press . ... Star Formation Group . ...

Program number . ... Infrared Snapshots of 3CR Radio Galaxies . Abstract . ... Holland Ford, The Johns Hopkins University . ... An ACS H-alpha Survey of the Carina Nebula . ... A Snapshot Survey of the most massive clusters of galaxies . ... An ACS Imaging Survey of the Galaxies Hosting Strong Mg II Absorption . ... ACS observations of the galaxies in a giant Ly-alpha nebula at z~2.7 . ... An ACS Survey of a Complete Sample of Luminous Infrared Galaxies in the Local Universe . ... Past weeks: . ...

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

... Vink, J.S., de Koter, A. 2005, Astronomy Astrophysics 442, 587 - 596 . ... Vink, J.S., Harries, T.J., Drew, J.E. 2005, Astronomy Astrophysics 430, 213 . ... Vink, J.S., de Koter A. 2002, Astronomy Astrophysics, 393, 543 . ... Vink, J.S., de Koter, A., Lamers, H.J.G.L.M. 2001, Astronomy Astrophysics, 369, 574--588 . ... Vink, J.S., de Koter, A., Lamers, H.J.G.L.M. 2000, Astronomy Astrophysics, 362, 295--309 . ... Vink, J.S., de Koter, A., Lamers, H.J.G.L.M. 1999, Astronomy Astrophysics, 350, 181--196...

Next: Ejectors in Massive Binary Previous: Artificial Galaxy: Full Matrix . The first version of the Scenario Machine was aimed especially at the simulation of massive binary star evolution. ... First, there is a large class of intermediate mass binaries (say, consisting initially of 8 + 5 solar masses) that can also produce NS and thus lead to the formation of a bright X-ray source. ... Next: Ejectors in Massive Binary Previous: Artificial Galaxy: Full Matrix Mike E. Prokhorov . ...

... This list includes published refereed papers compiled since the February 2006 newsletter. ... AFONSO, J., MOBASHER, B., KOEKEMOER, A., NORRIS, R.P. & CRAM, L. "Optical and X-ray identification of faint radio sources in the GOODS CDF-S Advanced Camera for Surveys field". ... MNRAS, 367, 1609-1628 (2006). ... BRIGGS, F.H. & BARNES, D.G. "H I 21 cm observations of the PG 1216+069 sub-damped Lya absorber field at z=0.00632". ApJ, 640, L127-L130 (2006). ... MNRAS, 367, 1201-1208 (2006). ...

... Elena Seifina and Lev Titarchuk "On the nature of the compact object in SS433: observational evidence of X-ray photon index saturation" 2010, Astrophysical. ... A.M. Cherepashchuk, R.A. Sunyaev, E.V. Seifina, E.A. Antokhina, D.I. Kosenko, S.V. Molkov, N.I. Shakura, K.A. Postnov, A.N. Timokhin, I.E. Panchenko "INTEGRAL Observations of SS433: Analysis of Precessional and Orbital X-ray Periodicities" 2007, 6th INTEGRAL Workshop, Eds. S. Grebenev, R.A. Sunyaev, p.411 (astro-ph/0610235) . ...

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2012 > Star and Planet Formation Workshop . ... Observing with ESO Telescopes . ... On 14 May 2012 we held a one-day workshop in the ESO Auditorium with the aim of bringing the star and planet formation community from ESO-MPE-USM together. ... J. Ascenso (ESO) Star formation in giant complexes . ... C. Manara (ESO) The role of accretion in the formation of stars and planets: a VLT/X-Shooter perspective . ...

... Interacting galaxies . ... Catalogues . ... We define a volume limited sample of over 14,000 early-type galaxies (ETGs) selected from data release six of the Sloan Digital Sky Survey. The density of environment of each galaxy is robustly measured. By comparing narrow band spectral line indices with recent models of simple stellar populations (SSPs) we investigate trends in the star formation history as a function of galaxy mass (velocity dispersion), density of environment and galactic radius. ...

... Abubekerov M.K., Lipunov V.M. "The Lower Temperature Limits Of Accretors" Astronomy Reports, 2003, Vol. 47, Issue 8, pp.679-684. ... Abubekerov M.K., Antokhina E.A., Cherepashchuk A.M. "The Masses of X-ray Pulsars in Binary systems with OB Supergiants" Astronomy Reports, 2004, Vol. ... Abubekerov M.K., Antokhina E.A., Cherepashchuk A.M., Shimanskii V.V. "The Mass of the Compact Object in the Low-Mass X-ray Binary 2S 0921-630" Astronomy Reports Astronomy Reports, 2006, Vol.50, Issue 7, pp.544-552. ...

Our publications in 2008 year Ekta; Chengalur, Jayaram N.; Pustilnik, S. A. Monthly Notices of the Royal Astronomical Society, Volume 391, Issue 2, pp. ... Astronomy Letters, Volume 34, Issue 7, pp.457-467 (07/2008) . Pustilnik, S. A.; Tepliakova, A. L.; Kniazev, A. Y.; Burenkov, A. N. Monthly Notices of the Royal Astronomical Society: Letters, Volume 388, Issue 1, pp. ... Kniazev, A. Y.; Pustilnik, S. A.; Zucker, D. B. Monthly Notices of the Royal Astronomical Society, Volume 384, Issue 3, pp. ...

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

... The HI - Star Formation Connection . ... Coffee . ... Dark Galaxies and Dark Matter . ... HI in Normal Galaxies . HI and Galaxy Evolution over Cosmic Time . ... How Galaxies Accrete Gas . ... The Billion Galaxy Survey . ... Searches for Dark Galaxies . ... Evidence for Dark Matter in Galaxies . HI in Galaxies: Overview . ... Open Questions in Normal Galaxies . ... Starburst galaxies and BCDs . ... HI Rich Galaxies . ... Open Questions in HI and Galaxy Evolution . HI and Galaxy Evolution . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Stars . ... Space Flight . ... This image of the Tarantula Nebula comprises one of the largest mosaics ever assembled from Hubble photos and includes observations taken by HubbleтАЩs Wide Field Camera 3 and Advanced Camera for Surveys, combined with observations from the European Southern ObservatoryтАЩs MPG/ESO 2.2-metre telescope which trace the location of glowing hydrogen and oxygen. ... Subscribe to Astronotes . ...

home publications > mercury . ... Big Clusters, Tiny Galaxies . ... Astronomers struggle to understand why giant star clusters form in the tiniest of galaxies . ... These clusters are probably young versions of globular clusters, but they are commonly called super star clusters. Seven dwarf galaxies within 16 million light-years have formed super star clusters, with one of these galaxies, NGC 1569, possessing two young clusters. ... Super star clusters have a lot to tell us about star formation. ...

Laboratory of Stellar Physics . ... A study of close binaries with black holes, neutron stars and white dwarfs. ... A study of SS433 - the massive close binary with a black hole in the regime of supercritical accretion . ... A search for intermediate-mass black holes (IMBH). The black holes which are not supermassive black holes observed in quasars, and which were formed not in massive stars. ... A search for new magnetic stars, new CP stars, measurements of magnetic fields in stars . ...

... The RAS Meteorite Collection: State on the 1 st of June, 1999 . ... About the laboratory . ... Chondrite . ... Fall 05 March 1960. 16 masses, the largest is 2.5 kg . ... Find 1991. One mass of about 9 kg . ... One mass of 532 g . ... Find 1889. 8 masse totaling 124.877 kg . ... Find 1915 and 1940. 2 masses, 736.6 kg and 24.1 kg . ... One mass of 122 kg . ... One mass of 3624 g . ... One mass of 1169.5 kg . ... One mass of 3.568 kg . ... One mass of 9.3 kg . ... One mass of 51,642 kg . ...