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 . ...

... On the difference between Herbig Ae and Herbig Be stars Mottram, J.C., Vink, J.S., Oudmaijer R.D., Patel M. 2007, MNRAS, in press, astro-ph/0703143 3. ... Vink, J.S. 2007, A&A 465, 1003 4. ... On the origin of the X-ray emission towards the early Herbig Be star MWC 297 Vink, J.S., O'Neill, P.M., Els, S.G., Drew, J.E. 2005, A&A 438L, 21 10. Near-infrared line spectropolarimetry of hot massive stars Oudmaijer, R.D., Drew, J.E., Vink, J.S. 2005, MNRAS 64, 725 11. ... Do Herbig Ae/Be stars have discs? ...

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

home education > resources . ... Resources . ... Astronomy Education Bibliography . ... Black Holes: An Introductory Resource List . ... Castelvecchi, D. "A New Breed of Black Hole" in Sky Telescope , Apr. 2006, p. 36. ... Charles, P. Wagner, R. "Black Holes in Binary Stars: Weighing the Evidence" in Sky Telescope , May 1996, p. 38. ... Nadis, S. "The Secret Lives of Black Holes" in Astronomy , Nov. 2007, p. 28. ... Nadis, S. "Black Holes: Seeing the Unseeable" in Astronomy , Apr. 2007, p. 26. ...

The K20 survey. I. Disentangling old and dusty star-forming galaxies in the ERO population", 2002, Cimatti A. et al., ... Probing the evolution of massive galaxies with the K20 survey", 2002, Cimatti A., invited contribution in the ESO/USM Workshop "The Mass of Galaxies at Low and High Redshift", Venezia (Italy), October 24-26, 2001, in press. ... The K20 survey: new light on galaxy formation and evolution", 2003, Cimatti et al., ... Old galaxies in the young Universe", 2004, Cimatti et al., ...

The H II complex N 44 in the Large Magellanic Cloud (LMC) provides an excellent site to perform a detailed study of star formation in a mild starburst, as it hosts three regions of star formation at different evolutionary stages, and it is not as complicated and confusing as the 30 Doradus giant H II region. We have obtained Spitzer Space Telescope observations and complementary ground-based 4 m uBVIJK observations of N 44 to identify candidate massive young stellar objects (YSOs). ...

... Science . ... The goal is to bring together two communitities: the one working on star formation (mostly galactic) and the one working on the formation of young massive clusters (mostly extra-galactic). We will link galactic with extra-galactic work, optical/NIR techniques with sub-mm/mm/radio ones, the formation of stars with the one of massive star clusters - observations and theory. ... Coordinated by Marina Rejkuba (abstract) . ... How did star formation proceed in Globular Clusters? ...

Find Similar Abstracts (with default settings below ) . ... Also-Read Articles . Translate Abstract . ... Hot Star Workshop III: The Earliest Stages of Massive Star Birth. ... San Francisco, Astronomical Society of the Pacific, 2002, p.407 . ... 407P We present a high-resolution near-infrared study of the deeply embedded young stellar object S140 IRS1 and its environment. Bibtex entry for this abstract Custom formatted entry for this abstract (see Preferences) . ... Query Results . ...

... Massive stars, having 10-150 masses of the Sun, with metallicities Z tens to hundreds times less than that of the Sun (Zo), are the main regulators of the galaxy formation and evolution processes in the early Universe. ... In this galaxy, using the 6 m BTA telescope, a new massive blue variable star with high luminosity (>=10 5 Sun's luminocities in visible light) was found. As far as its properties are concerned, this star falls into an LBV (Luminous Blue Variable) class of stars. ...

... 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". ...

Profiling Young Massive Stars Tracey Hill Leiden Observatory, Leiden University Thesis work - UNSW with M Burton, M Cunningham, V Minier IAUs 242: Masers, Alice Springs Massive Star Formation T T T T T Study is hindered ­ recall talk by de Buizer Optically obscured prior to main sequence evolution. ... Tracey Hill Tuesday 13th March 07 T Massive stars associated with infrared radiation (IRAS & MSX), UC HII regions, maser sources, millimetre & submillimetre emission. ...

... 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. ...

... Bojan Nikolic web pages (r. 329) . Galaxy Evolution . ... 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. ... MJD of the SDSS observation of the galaxy . ... The history of star formation and mass assembly in early-type galaxies . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

The upper limit to stellar masses is unclear, as is the relative importance of nature (stellar physics) and nurture (formation environment) to the limit. ... Despite some uncertainties in the linear growth rate, we conclude that these modes saturate nonlinearly at small and harmless amplitudes. Vigorous, optically thick winds driven by the Rosseland-mean opacity near 100,000 K are more likely to limit the main-sequence lifetime. ...

... Star Atlas . ... solar system . ... stars . ... Observe the Solar System . ... What factors determine if a massive star (say, 100 solar masses) forms instead of a Sun-like star? ... Stars of all masses form from dense clumps within exceptionally cold molecular clouds. ... Massive stars tend to form at the centers of high-mass reservoirs of gas. Get instant access to subscriber content on Astronomy.com! ... A gamma-ray burst hints that LIGO's double black holes started as one massive star . ...

... Posts tagged ?massive data? ... Tags: bimodality , chi-square minimization , Classification , CMD , Estimation , machine learning , massive data , model based , PCA , spectral analysis , spectroscopic , survey , VO . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

... 2004 April 14 . Massive Star Forming Region DR21 in Infrared . ... Explanation: Deep in the normally hidden recesses of giant molecular cloud DR21, a stellar nursery has been found creating some of the most massive stars yet recorded. The orbiting Spitzer Space Telescope 's Infrared Array Camera opened the window into the cloud last year in mid- infrared light. The cloud is opaque to visible light because of dense interstellar dust . ... About APOD | ...

... A2712 Date Received: 2012­Mar­01 14:39:12 Technical Page Proposal Type: Regular General Category: Astronomy Sub­Category: Spectroscopy Observation Category: Galactic Total Time Requested: 6.5 Hours Minimum Useful Time: Proposal Title: A search for Methanol and excited­state OH masers toward high­mass proto­ stellar cores in the Hi­GAL survey ABSTRACT: Only very recently progress has been made toward the identification and study of the earliest phases of high­mass star formation (HMSF). ...

... astro-ph . ... We present the goals and preliminary results of an unbiased, near-infrared, narrow-band imaging survey of the First Galactic Quadrant (10deg<l<65deg ; -1.3deg<b<+1.3deg). ... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ...

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