搜索结果: 1-8 共查到“天文学 Estimate”相关记录8条 . 查询时间(0.062 秒)
CO luminosity functions for far-infrared- and B-band-selected galaxies and the first estimate for Omega(H I+H2)
surveys molecules
2014/12/24
We derive a nonparametric CO luminosity function using an FIR- and an optical B-band-selected sample of the galaxies included in the FCRAO Extragalactic CO Survey. The FIR-selected sample is defined u...
A first estimate of the baryonic mass function of galaxies
luminosity function mass function
2014/12/24
We estimate the baryonic (stellar+cold gas) mass function of galaxies in the local universe by assigning a complete sample of Two Micron All Sky Survey and Sloan Digital Sky Survey galaxies a gas frac...
BLR Physical Conditions in Extreme Population A Quasars: a Method to Estimate Central Black Hole Mass at High Redshift
Physical Conditions Extreme Population Quasars
2011/10/10
We describe a method for determination of physical conditions in the broad line regions of a significant subsample of Seyfert-1 nuclei and quasars. Several diagnostic ratios based on intermediate (AlI...
Estimate of halo ellipticity as a function of radius with flexions
cosmology – gravitational lensing – fl exion – dark matter halo
2011/9/29
The cold dark matter theory predicts triaxial dark matter haloes. The radial distribution of halo ellipticity depends on baryonic processes and the nature of dark matter particles (collisionless or co...
"Discrepant hardenings" in cosmic ray spectra: a first estimate of the effects on secondary antiproton and diffuse gamma-ray yields
Discrepant hardenings cosmic ray spectra the effects on secondary antiproton
2011/1/11
Recent data from CREAM seem to confirm early suggestions that primary cosmic ray spectra at few TeV/nucleon are harder than in the 10-100 GeV range. Also, helium and heavier nuclei spectra appear syst...
Wind estimate ‘shortens Saturn’s day by five minutes’（图）
shortens Saturn’s day wind five minutes’
2009/8/3
A new way of detecting how fast large gaseous planets are rotating suggests Saturn’s day lasts 10 hours, 34 minutes and 13 seconds – over five minutes shorter than previous estimates that were based o...
How to accurately estimate BH masses of AGN with double-peaked emission lines
BH masses double-peaked emission lines AGN
2009/7/9
How to accurately estimate BH masses of AGN with double-peaked emission lines。
THE ACCURACY ESTIMATE FOR STAR POSITIONS IN THE VICINITY OF RADIO SOURCES IN ZONE -30 TO +60 OBTAINED WITH LMC IN BELGRADE
STAR POSITIONS ZONE -30 RADIO SOURCES +60
2009/4/20
THE ACCURACY ESTIMATE FOR STAR POSITIONS IN THE VICINITY OF RADIO SOURCES IN ZONE -30 TO +60 OBTAINED WITH LMC IN BELGRADE。