期刊
ASTROPHYSICAL JOURNAL
卷 725, 期 1, 页码 556-560出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/725/1/556
关键词
galaxies: elliptical and lenticular, cD; galaxies: formation; galaxies: high-redshift; galaxies: nuclei; galaxies: starburst; quasars: general
资金
- Israel Science Foundation [203/09]
- Asher Space Research Institute
- Winnipeg Research Fund
- Science and Technology Facilities Council [ST/H002456/1] Funding Source: researchfish
- STFC [ST/H002456/1] Funding Source: UKRI
Force balance considerations put a limit on the rate of active galactic nucleus radiation momentum output, L/c, capable of driving galactic superwinds and reproducing the observed M-BH-sigma relation between black hole mass and spheroid velocity dispersion. We show that black holes cannot supply enough momentum in radiation to drive the gas out by pressure alone. Energy-driven winds give a M-BH-sigma scaling favored by a recent analysis but also fall short energetically once cooling is incorporated. We propose that outflow triggering of star formation by enhancing the intercloud medium turbulent pressure and squeezing clouds can supply the necessary boost and suggest possible tests of this hypothesis. Our hypothesis simultaneously can account for the observed halo baryon fraction.
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