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Rings around young star suggest planet formation in progress
Rings around young star planet formati progress
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2016/12/27
Rice University astronomers and their colleagues have for the first time mapped gases in three dark rings around a distant star. The rings mark spaces where planets are thought to have formed from dus...
Astronomers find giant planet around very young star
Astronomers giant planet young star
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2016/6/12
In contradiction to the long-standing idea that larger planets take longer to form, U.S. astronomers today announced the discovery of a giant planet in close orbit around a star so young that it still...
Planet Formation in Earth-like Orbit around a Young Star
Planet Formation Earth Young Star
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2016/4/13
The disks of dust and gas that surround young stars are the formation sites of planets. New images from the Atacama Large Millimeter/submillimeter Array (ALMA) reveal never-before-seen detai...
Astronomers Probe Young Star and its Planets（图）
Astronomers Young Star Planets
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2015/4/29
Taking advantage of the unprecedented sensitivity of the Large Binocular Telescope in southeastern Arizona, an international team of astronomers has obtained the first results from the LEECH exoplanet...
Young star clusters in external galaxies
clusters external galaxies
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2011/10/12
I review the characteristics of cluster populations in other galaxies, with particular emphasis on young star clusters and a comparison with the (known) open cluster population of the Milky Way. Young...
HST-ACS photometry of the isolated dwarf galaxy VV124=UGC4879. Detection of the Blue Horizontal Branch and identification of two young star clusters
Galaxies: dwarf — Galaxies: Local Group — Galaxies: structure — Galaxies: stellar content — Galaxies: ISM —Galaxies: individual
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2011/10/8
We present deep V and I photometry of the isolated dwarf galaxy VV124=UGC4879, obtained from archival images taken with the Hubble Space Telescope - Advanced Camera for Surveys. In the color-magnitude...
On the equivalent effective temperature of massive young star clusters: The case of NGC 595
equivalent effective temperature massive star clusters
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2011/9/27
The softness parameter is based on the relative intensity of several optical emission lines emitted by the gas ionized by young massive star clusters and can be used to derive the equivalent effective...
Probing the near-IR flux excess in young star clusters
Probing near-IR flux star clusters
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2011/9/27
We report the results of a recent study of young star clusters (YSCs) in luminous blue compact galaxies (BCGs). The age distributions of the YSCs suggest that the starburst episode in Haro 11, ESO 185...
The large amplitude outburst of the young star HBC 722 in NGC 7000/IC 5070, a new FU Orionis candidate
stars pre-main sequence – stars variables T Tauri
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2010/11/11
Context. The investigations of the photometric and spectral variability of PMS stars are essential to a better understanding of the early phases of stellar evolution. We are carrying out a photometric...
Assessment of Stellar Stratification in Three Young Star Clusters in the Large Magellanic Cloud
Magellanic Clouds galaxies star clusters globular clusters individual NGC 1983,NGC 2002, NGC 2010 Hertzsprung-Russell diagram Methods statistical stellar dynamics
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2010/3/8
(abridged) We present a comprehensive study of stellar stratification in young star clusters in the Large Magellanic Cloud (LMC). We apply our recently developed effective radius method for the assess...