首页     To Survive in the Universe    
Services
    Why to Inhabit     Top Contributors     天文图片     收集     论坛     Blog New!     常见问题     登录  
→ Adopt this star  

HD 9942


目录

图像

上传图像

DSS Images   Other Images


相关文章

Pulkovo compilation of radial velocities for 35495 stars in a common system.
Not Available

A catalog of K giants at the South Galactic Pole - Broadband and DDO photometry and radial velocities
We describe a sample of K giants at the South Galactic Pole, selected toexamine the chemical and kinematical properties of stars perpendicularto the galactic plane and to measure the local column density of thedisk. We report velocities, abundances, absolute magnitudes, andbroadband BV photometry for over 500 giants.

Local dark matter from a carefully selected sample
The precise data obtained by Flynn and Freeman (1991) on K giants at thesouth Galactic pole are used to analyze the amount of local dark matterin which the systematic effects can be modeled easily and evaluatedaccurately. The method of Bahcall (1984) is employed to solve theself-consistent equations for the distribution of dark matter. TheK-giant survey is found to provide significant evidence for disk darkmatter. Taking into account all recognized sources of error using astatistical test devised by Gould (1989, 1990), a model with no darkmatter is inconsistent with the data at the 86-percent confidence level.The best-fit P-model (in which dark matter is distributed proportionallyto known matter) has 53 percent more dark matter than visible matter.

提交文章


相关链接

  • - 没有找到链接 -
提交链接


下列团体成员


观测天体数据

星座:鯨魚座
右阿森松:01h36m45.68s
赤纬:-22°26'31.2"
视星:8.25
距离:221.239 天文距离
右阿森松适当运动:16.4
赤纬适当运动:21
B-T magnitude:9.723
V-T magnitude:8.372

目录:
适当名称
HD 1989HD 9942
TYCHO-2 2000TYC 5857-793-1
USNO-A2.0USNO-A2 0675-00575023
HIPHIP 7509

→ 要求更多目录从vizier