期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 405, 期 1, 页码 L11-L15出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1745-3933.2010.00849.x
关键词
galaxies: dwarf; galaxies: elliptical and lenticular; cD; galaxies: evolution; galaxies: stellar content; galaxies: kinematics and dynamics
资金
- Alfred P. Sloan Foundation
- National Science Foundation
- U.S. Department of Energy
- NASA
- Japanese Monbukagakusho
- Max Planck Society
- Higher Education Funding Council for England
We report the discovery of the second compact elliptical (cE) galaxy SDSS J150634.27+013331.6 in the nearby NGC 5846 group by the Virtual Observatory (VO) workflow. This object (M(B) = -15.98 mag, R(e) = 0.24 kpc) becomes the fifth cE where the spatially resolved kinematics and stellar populations can be obtained. We used archival HST WFPC2 images to demonstrate that its light profile has a two-component structure, and integrated photometry from GALEX, SDSS, UKIDSS and Spitzer to build the multiwavelength spectral energy distribution to constrain the star formation history (SFH). We observed this galaxy with the PMAS IFU spectrograph at the Calar-Alto 3.5-m telescope and obtained two-dimensional maps of its kinematics and stellar population properties using the full-spectral fitting technique. Its structural, dynamical and stellar population properties suggest that it had a massive progenitor heavily tidally stripped by NGC 5846.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据