搜索结果: 16-30 共查到“理学 the Milky Way”相关记录59条 . 查询时间(0.07 秒)
We examine the outer Galactic HI disk for deviations from the b = 0◦ plane by
constructing maps of disk surface density, mean height, and thickness. We find
that the Galactic warp is wel...
Distant Milky Way M Giants（图）
The Milky Way. Stars Distant Astrophysics. The telescope. Red dwarfs galaxy
2014/7/18
The distant outskirts of the Milky Way harbor valuable clues for understanding the formation and evolution of our Galaxy. Yet, due to overwhelming distances and an extremely sparse population of star...
Dark Matter distribution in the Milky Way: microlensing and dynamical constraints
Dark Matter distribution Milky Way microlensing dynamical constraints
2011/10/20
We show that current microlensing and dynamical observations of the Galaxy allow to set interesting constraints on the Dark Matter local density and profile slope towards the galactic centre. Assuming...
Reddening and metallicity maps of the Milky Way Bulge from VVV and 2MASS. I.The method and minor axis maps
Galaxy: bulge - ISM: dust, extinction - stars: abundances
2011/10/18
We present a method to obtain reddening maps and to trace structure and metallicity gradients of the bulge using data from the recently started ESO public survey Vista Variables in the Via Lactea (VVV...
We analyzed the distribution of the RC stars throughout Galactic bulge using 2MASS data. We mapped the position of the red clump in 1 sq.deg. size fields within the area |l|<=8.5deg and $3.5deg<=|b|<=...
Too small to succeed? Lighting up massive dark matter subhaloes of the Milky Way
methods: numerical - N-body simulations – galaxies: formation - haloes - Local Group
2011/10/19
Using Constrained Local UniversE Simulations (CLUES) of the formation of the Local Group in a cosmological context we investigate the recently highlighted problem that the majority of the most massive...
Formation and Evolution of the Dust in Galaxies. III. The Disk of the Milky Way
Galaxies - Dust Galaxies – Spirals Galaxies – Milky Way
2011/10/13
Models of chemical evolution of galaxies including the dust are nowadays required to decipher the high-z universe. In a series of three papers we have tackled the problem and set a modern chemical evo...
The Information Of The Milky Way From 2MASS Whole Sky Star Count: The Structure Parameters
Milky Way Star Count:Structure Parameters
2011/10/12
The Ks band differential star count of the Two Micron All Sky Survey (2MASS) is used to derive the global structure parameters of the smooth components of the Milky Way. To avoid complication introduc...
Segue 3: An Old, Extremely Low luminosity Star Cluster in the Milky Way's Halo
Extremely luminosity Star Cluster Milky Way
2011/10/10
We investigate the kinematic and photometric properties of the Segue 3 Milky Way companion using Keck/DEIMOS spectroscopy and Magellan/IMACS g and r-band imaging. Using maximum likelihood methods to a...
Spectroscopic and photometric surveys of the Milky Way and its stellar clusters in the Gaia era
Spectroscopic photometric surveys o stellar clusters
2011/9/30
This contribution to the Stellar Clusters & Associations: A RIA Workshop on Gaia deals with surveys of stars, in particular spectroscopic surveys, with attention to their impact on cluster studies, an...
Average Inhomogeneities in Milky Way SNII and The PAMELA Anomaly
PAMELA Anomaly Supernova Remnant
2011/9/29
A model is presented to estimate the fraction of Supernova Type-II events (SNII) occurring inside vs. outside a spiral arm for a given star formation episode. The probability distribution function (PD...
A Model of Habitability Within the Milky Way Galaxy
astrobiology, Galactic evolution, Galactic Habitable Zone, habitability, su- pernovae
2011/9/29
We present a model of the Galactic Habitable Zone (GHZ), described in terms of the spatial and temporal dimensions of the Galaxy that may favour the development of complex life. The Milky Way galaxy i...
Current studies of the peculiar velocity flow field in the Local Universe are limited by the lack of detection of galaxies behind the Milky Way. The contribution of the largely unknown mass distributi...
Distance determination for RAVE stars using stellar models III: The nature of the RAVE survey and Milky Way chemistry
Stars: distances, Stars: fundamental parameters, Galaxy: abundances, Galaxy: disk, Galaxy: stellar content, Galaxy: structure
2011/9/29
We apply the method of Burnett & Binney (2010) for the determination of stellar distances and parameters to the internal catalogue of the Radial Velocity Experiment (Steinmetz et al. 2006). Subsamples...