热门
THE BULGE RADIAL VELOCITY ASSAY (BRAVA). II. COMPLETE SAMPLE AND DATA RELEASE
文献类型：期刊论文
| 作者 | Kunder, Andrea1; Koch, Andreas2; Rich, R. Michael3; de Propris, Roberto1; Howard, Christian D.4; Stubbs, Scott A.1; Johnson, Christian I.3; Shen, Juntai5; Wang, Yougang6 ; Robin, Annie C.7
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2012-03-01 |
| 卷号 | 143期号:3 |
| 关键词 | Galaxy: center stars: abundances stars: distances stars: Population II surveys |
| 英文摘要 | We present new radial velocity measurements from the Bulge Radial Velocity Assay, a large-scale spectroscopic survey of M-type giants in the Galactic bulge/bar region. The sample of similar to 4500 new radial velocities, mostly in the region -10 degrees < l < +10 degrees and b approximate to -6 degrees, more than doubles the existent published data set. Our new data extend our rotation curve and velocity dispersion profile to +20 degrees, which is similar to 2.8 kpc from the Galactic center. The new data confirm the cylindrical rotation observed at -6 degrees and -8 degrees and are an excellent fit to the Shen et al. N-body bar model. We measure the strength of the TiO epsilon molecular band as a first step toward a metallicity ranking of the stellar sample, from which we confirm the presence of a vertical abundance gradient. Our survey finds no strong evidence of previously unknown kinematic streams. We also publish our complete catalog of radial velocities, photometry, TiO band strengths, and spectra, which is available at the Infrared Science Archive as well as at UCLA. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000300735600003 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6121]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Cerro Tololo Interamer Observ, La Serena, Chile 2.Univ Heidelberg, Zentrum Astron, Heidelberg, Germany 3.Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA 4.NASA, Ames Res Ctr, Moffett Field, CA 94035 USA 5.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 6.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 7.Univ Besancon, Observ Sci, F-25030 Besancon, France 8.Univ Texas Austin, Dept Astron, Austin, TX 78712 USA 9.Univ La Serena, Dept Fis, La Serena, Chile 10.Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA |
| 推荐引用方式 GB/T 7714 | Kunder, Andrea,Koch, Andreas,Rich, R. Michael,et al. THE BULGE RADIAL VELOCITY ASSAY (BRAVA). II. COMPLETE SAMPLE AND DATA RELEASE[J]. ASTRONOMICAL JOURNAL,2012,143(3). |
| APA | Kunder, Andrea.,Koch, Andreas.,Rich, R. Michael.,de Propris, Roberto.,Howard, Christian D..,...&Origlia, Livia.(2012).THE BULGE RADIAL VELOCITY ASSAY (BRAVA). II. COMPLETE SAMPLE AND DATA RELEASE.ASTRONOMICAL JOURNAL,143(3). |
| MLA | Kunder, Andrea,et al."THE BULGE RADIAL VELOCITY ASSAY (BRAVA). II. COMPLETE SAMPLE AND DATA RELEASE".ASTRONOMICAL JOURNAL 143.3(2012). |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。