搜索结果: 1-10 共查到“天文学 the mean”相关记录10条 . 查询时间(0.046 秒)
The 2Mass Color-magnitude Diagram of the Center of the Sagittarius Dwarf Galaxy: Photometric Measurements of a Surprisingly High Mean Metallicity
abundances stellar
2014/12/23
We present the Two Micron All Sky Survey (2MASS) (J−K, K) color-magnitude diagram for the region within 1◦ of the center of the Sagittarius dwarf spheroidal galaxy. Using the slope of the ...
Effects of Turbulence, Eccentricity Damping, and Migration Rate on the Capture of Planets into Mean Motion Resonance
planetary systems planetary systems formation — planets and satellites formation — turbulence
2010/11/11
Pairs of migrating extrasolar planets often lock into mean motion resonance as they drift inward. This paper studies the convergent migration of giant planets (driven by a circumstellar disk) and dete...
Particle reacceleration by compressible turbulence in galaxy clusters: effects of reduced mean free path
acceleration of particles - turbulence - radiation mechanisms non{thermal - galaxies clusters general radio continuum general - X{rays general
2010/11/11
Direct evidence for in situ particle acceleration mechanisms in the inter-galactic-medium (IGM) is provided by the di use Mpc{scale synchrotron emissions observed from galaxy clusters.
Hubble Space Telescope Studies of Nearby Type Ia Supernovae: The Mean Maximum Light Ultraviolet Spectrum and its Dispersion
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/28
We present the first results of an ongoing campaign using the STIS spectrograph on-board the Hubble Space Telescope (HST) whose primary goal is the study of near ultraviolet (UV) spectra of local Type...
Determination of the Mean HI Absorption of the Intergalactic Medium
Quasar absorption lines—galaxies intergalactic medium
2010/9/15
In recent years, the Lyman-α forest in quasar spectra has been used, together with N-body simulations, to determine the underlying matter distribution in the intergalactic medium (IGM). One of the key...
The importance of atmospheric extinction measures and The mean extinction curve for San Pedro Mártir
atmospheric extinction San Pedro Mártir mean extinction curve
2009/6/11
The importance of atmospheric extinction measures and The mean extinction curve for San Pedro Mártir。
RESULTS OF THE INVESTIGATION OF THE CAUSES OF THE BELGRADE MEAN LATITUDE CHANGES
MEAN LATITUDE CHANGES THE BELGRADE
2009/4/23
RESULTS OF THE INVESTIGATION OF THE CAUSES OF THE BELGRADE MEAN LATITUDE CHANGES。
VARIATION OF THE BELGRADE MEAN LATITUDE。
A GLOBULAR-CLUSTER MODEL WITH VARIABLE MEAN MASS OF A SINGLE STAR
GLOBULAR-CLUSTER MODEL SINGLE STAR VARIABLE MEAN MASS
2009/4/8
The application of the basic hydrodynamical equations to globular
clusters is reconsidered. As usually, these stellar systems are assumed to be
spherically symmetric and in a steady state with an is...
GRADIENT OF MEAN MASS OF A STAR IN THE FIELD OF GLOBULAR CLUSTERS
globular clusters general-Stars fundamental parameters (masses)
2009/2/16
Based on the relevant available data, the distributions of masses
and apparent magnitudes of stars belonging to globular star clusters are simulated.
The simulations are aimed at examining the in°ue...