搜索结果: 1-11 共查到“天文学 galactic bulge”相关记录11条 . 查询时间(0.109 秒)
Stellar feedback in Galactic bulges plays an essential role in shaping the evolution of galaxies. To quantify this role and facilitate comparisons with X-ray observations, we conduct three-dimensional...
Galactic Bulge Feedback and its Impact on Galaxy Evolution
galactic feedback hydrodynamics intergalactic medium Intestellar Medium supernova remnants X-ray
2014/12/9
Galactic bulges of early-type spirals and elliptical galaxies comprise primarily old stars, which account for more than half of the total stellar mass in the local Universe. These stars collectively g...
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. IV. Two bulge populations
Gravitational lensing: micro—Galaxy: bulge —Galaxy: formation —Galaxy: evolution —Stars: abundances
2011/10/20
Based on high-resolution (R~42000 to 48000) and high signal-to-noise (S/N~50 to 150) spectra obtained with UVES/VLT, we present detailed elemental abundances (O, Na, Mg, Al, Si, Ca, Ti, Cr, Fe, Ni, Zn...
The Optical Gravitational Lensing Experiment. OGLE-III Photometric Maps of the Galactic Bulge Fields
Optical Gravitational Lensing Experiment OGLE-III Photometric Galactic Bulge Fields
2011/10/12
We present OGLE-III Photometric Maps of the Galactic bulge fields observed during the third phase of the OGLE project. This paper describes the last, concluding set of maps based on OGLE-III data.
Th...
The WFC3 Galactic Bulge Treasury Program: Metallicity Estimates for the Stellar Population and Exoplanet Hosts
Galaxy bulge — Galaxy formation — Galaxy stellar content — stars
2010/11/10
We present new UV-to-IR stellar photometry of four low-extinction windows in the Galactic bulge, obtained with the Wide Field Camera 3 on the Hubble Space Telescope (HST). Using our five bandpasses, w...
A new [Oiii] \lamda5007 Å Galactic Bulge Planetary Nebula Luminosity Function
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/27
The Planetary Nebulae Luminosity Function (PNLF) describes the collective luminosity evolution for a given population of Planetary Nebulae (PN). A major paradox in current PNLF studies is in the unive...
The Galactic Bulge velocity dispersion as measured by stellar proper motions in Plaut`s window
velocity dispersion Plaut`s window stellar proper motions
2009/6/26
The Galactic Bulge velocity dispersion as measured by stellar proper motions in Plaut`s window。
Chemical abundances in the galactic bulge：evidence for a fast enrichment
galactic bulge fast enrichment Chemical abundances
2009/6/25
Chemical abundances in the galactic bulge：evidence for a fast enrichment。
Chemical abundances and kinematic properties of a planetary nebulae sample towards the galactic bulge
Chemical planetary nebulae kinematic properties
2009/6/11
Chemical abundances and kinematic properties of a planetary nebulae sample towards the galactic bulge。
The galactic bulge：the stellar and planetary nebula populations
galactic bulge stellar planetary nebula populations
2009/6/11
The galactic bulge：the stellar and planetary nebula populations。