搜索结果: 1-15 共查到“实测天体物理学 About Star”相关记录19条 . 查询时间(0.25 秒)
Dust-Obscured Star-Formation in Intermediate Redshift Galaxy Clusters
Dust-Obscured Star-Formation Intermediate Redshift Galaxy Clusters
2011/1/11
We present Spitzer MIPS 24-micron observations of 16 0.4usters drawn from the ESO Distant Cluster Survey (EDisCS). This is the first large 24-micron survey of clusters at intermediate ...
We present a study of the radio emission from a massive runaway star. The star forms a bow shock that is clearly observed in the infrared. We have performed VLA observations under the assumption that ...
Whole Earth Telescope Observations of the subdwarf B star KPD 1930+2752: A rich, short period pulsator in a close binary
stars general — oscillations individual(KPD1930+2752)
2010/11/9
KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellip-soidal variable with a known binary period just over two hours. The companion is most likely a white dwarf and the ...
SDSS-III/APOGEE: Detailed Abundances of Galactic Star Clusters
SDSS-III/APOGEE Detailed Abundances Galactic Star Clusters
2010/11/15
Sloan Digital Sky Survey III/Apache Point Observatory Galactic Evolution Experiment (SDSS-III/APOGEE) is a large-scale spectroscopic survey of Galactic stars and star clusters. The SDSS-III/APOGEE sur...
Evidence for an FU Orionis Outburst from a Classical T Tauri Star
stars formation stars pre-main sequence stars individual(LkH 188-G4) { stars variables
2010/11/12
We present pre- and post-outburst observations of the new FU Orionis-like young stellar object LkH 188-G4 (also known as HBC 722 and PTF 10qpf). Prior to this outburst, LkH 188-G4 would have been cl...
The Space Interferometry Mission Astrometric Grid Giant-Star Survey. III. Basic Stellar Parameters for an Extended Sample
stars abundances fundamental parameters atmospheres latetype rotation
2010/11/10
We present results of high resolution ( 55000) spectral observations of 830 photometrically pre-selected candidate red giants in the magnitude range of V = 9-12. We develop a pipeline for automated d...
The star formation history of the Large Magellanic Cloud as seen by star clusters and stars
galaxies evolution - galaxies: individual galaxies stellar content - galaxies star clusters
2010/11/10
The aim of this work is to test to what extent the star cluster population of a galaxy can be
utilised to constrain or estimate the star formation history, with the Large Magellanic Cloud as our test...
Decision Tree Classifiers for Star/Galaxy Separation
Methods data analysis Catalogues Surveys Virtual observatory tools
2010/11/12
We study the star/galaxy classification eciency of 13 di erent decision tree algorithms applied to photometric objects in the Sloan Digital Sky Survey Data Release Seven (SDSS DR7). Each algorithm is...
Modeling Star counts in the Monoceros stream and the Galactic anti-centre
Galaxy – disc structure stellar content
2010/11/15
Context. There is a continued debate as to the form of the outer disc of the Milky Way galaxy,
which has important implications for its formation. Stars are known to exist at a galacto-centric distan...
X-shooter, NACO, and AMBER observations of the LBV Pistol Star \footnote{Based on ESO runs 85.D-0182A, 085.D-0625AC}
Solar and Stellar Astrophysics (astro-ph.SR)
2011/1/6
We present multi-instruments and multi-wavelengths observations of the famous LBV star Pistol Star. These observations are part of a larger program about early O stars at different metallicities.
High-angular resolution observations of the Pistol Star
Solar and Stellar Astrophysics (astro-ph.SR)
2011/1/6
First results of near-IR adaptive optics (AO)-assisted imaging, interferometry, and spectroscopy of this Luminous Blue Variable (LBV) are presented. They suggest that the Pistol Star is at least doubl...
Star formation in the Taurus filament L1495: From Dense Cores to Stars
Galaxy Astrophysics (astro-ph.GA)
2011/1/4
We present a study of dense structures in the L1495 filament in the Taurus Molecular Cloud and examine its star-forming properties. In particular we construct a dust extinction map of the filament usi...
We present a novel theoretical tool to analyze the dynamical behaviour of a Be disk fed by non-constant decretion rates. It is mainly based on the computer code HDUST, a fully three-dimensional radiat...
How to Weigh a Star Using a Moon
Earth and Planetary Astrophysics (astro-ph.EP) Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/29
We show that for a transiting exoplanet accompanied by a moon which also transits, the absolute masses and radii of the star, planet and moon are determinable. For a planet-star system, it is well kno...
Is the Wind of the Galactic Oe Star HD 155806 Magnetically Confined?
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/29
Spectropolarimetric observations of HD 155806 - the hottest Galactic Oe star - were obtained with CFHT/ESPaDOnS to test the hypothesis that disk signatures in its spectrum are due to magnetic channeli...