首页     开始     To Survive in the Universe    
Inhabited Sky
    News@Sky     天文图片     收集     论坛     Blog New!     常见问题     新闻     登录  

HD 95534


目录

图像

上传图像

DSS Images   Other Images


相关文章

Discovery of large-scale gravitational infall in a massive protostellar cluster
We report Mopra Australia Telescope National Facility (ATNF),Anglo-Australian Telescope and Atacama Submillimeter TelescopeExperiment observations of a molecular clump in Carina, BYF73 =G286.21+0.17, which give evidence of large-scale gravitational infall inthe dense gas. From the millimetre and far-infrared data, the clump hasa mass of ~2 × 104Msolar, luminosity of ~2-3× 104Lsolar and diameter of ~0.9 pc. Fromradiative transfer modelling, we derive a mass infall rate of ~3.4× 10-2Msolaryr-1. If confirmed,this rate for gravitational infall in a molecular core or clump may bethe highest yet seen. The near-infrared K-band imaging shows an adjacentcompact HII region and IR cluster surrounded by a shell-likephotodissociation region showing H2 emission. At themolecular infall peak, the K imaging also reveals a deeply embeddedgroup of stars with associated H2 emission. The combinationof these features is very unusual, and we suggest that they indicate theongoing formation of a massive star cluster. We discuss the implicationsof these data for competing theories of massive star formation.

A homogeneous catalog of new UBV and H-beta photometry of B- and A-type stars in and around the Scorpius-Centaurus OB association
B- and A-type stars in and near the Sco-Cen OB association areinvestigated with UBV and H-beta photometry to acquire data relevant tothe luminosity function of Sco-Cen. The measurements generally consistof two 10-s integrations of U, B, V, (W, N) filters, and theobservations are corrected iteratively for atmospheric extinction andinstrumental response. The data presented give the mean V magnitude,mean B-V, mean U-B, and the estimated uncertainties for these values.The catalog provides a homogeneous catalog of data for a large fieldwith stellar objects delineating membership to the association Sco-Cenand that affect the luminosity function of the aggregate.

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:船帆座
右阿森松:11h00m49.78s
赤纬:-52°04'29.9"
视星:6.811
距离:122.399 天文距离
右阿森松适当运动:-16.6
赤纬适当运动:-7.4
B-T magnitude:6.822
V-T magnitude:6.812

目录:
适当名称   (Edit)
HD 1989HD 95534
TYCHO-2 2000TYC 8211-2377-1
USNO-A2.0USNO-A2 0375-12728652
HIPHIP 53836

→ 要求更多目录从vizier