The void galaxy survey: Optical properties and H i morphology and kinematics

Kreckel K.; Platen E.; Aragón-Calvo M.A.Van Gorkom J.H.Van De Weygaert R.Van Der Hulst J.M.Beygu B.

首页> 外文期刊>The Astronomical journal >The void galaxy survey: Optical properties and H i morphology and kinematics

【24h】

The void galaxy survey: Optical properties and H i morphology and kinematics

机译：The void galaxy survey: Optical properties and H i morphology and kinematics

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

We have carefully selected a sample of 60 galaxies that reside in the deepest underdensities of geometrically identified voids within the Sloan Digital Sky Survey. H I imaging of 55 galaxies with the Westerbork Synthesis Radio Telescope reveals morphological and kinematic signatures of ongoing interactions and gas accretion. We probe a total volume of 485 Mpc ~3 within the voids, with an angular resolution of 8 kpc at an average distance of 85 Mpc. We reach column density sensitivities of 5 × 10 ~(19) cm ~(-2), corresponding to an H I mass limit of 3 × 10 ~8 M_?. We detect H I in 41 galaxies, with total masses ranging from 1.7 × 10 ~8 to 5.5 × 10 ~9 M. The upper limits on the 14 non-detections are not inconsistent with their luminosities, given their expected H I mass-to-light ratios. We find that the void galaxies are generally gas-rich, low-luminosity, blue disk galaxies, with optical and H I properties that are not unusual for their luminosity and morphology. The sample spans a range of absolute magnitudes (-16.1 > M _r > -20.4) and colors (0.06

著录项

来源
《The Astronomical journal》 |2012年第1期|16-1-16-24|共24页
作者
Kreckel K.; Platen E.; Aragón-Calvo M.A.Van Gorkom J.H.Van De Weygaert R.Van Der Hulst J.M.Beygu B.;
展开▼
作者单位

Department of Astronomy, Columbia University, Mail Code 5246, 550 West 120th Street, New York, NY 10027, United States;

Kapteyn Astronomical Institute, University of Groningen, P.O. Box 800, 9700 AV Groningen, Netherlands;

Department of Physics and Astronomy, Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218, United States;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类天文学;
关键词
galaxies: evolution; galaxies: formation; galaxies: kinematics and dynamics; galaxies: structure; large-scale structure of Universe; radio lines: galaxies;

The void galaxy survey: Optical properties and H i morphology and kinematics

摘要

著录项

相关主题

期刊订阅