New Results on Quasar Outflows

被引：0

作者：

Hamann, Fred ^{[1
]}

Kanekar, Nissem ^{[1
]}

Prochaska, Jason X. ^{[1
]}

Murphy, Michael T. ^{[1
]}

Milutinovic, Nikola ^{[1
]}

Ellison, Sara ^{[1
]}

Ubachs, Wim ^{[1
]}

Ferland, Gary ^{[1
]}

机构：

[1] Univ Florida, Dept Astron, Gainesville, FL 32611 USA

来源：

CO-EVOLUTION OF CENTRAL BLACK HOLES AND GALAXIES | 2010年 / 267期

关键词：

quasars: general; quasars: absorption lines; galaxies: evolution; line: formation;

D O I：

10.1017/S1743921310006836

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Accretion disk outflows are an important part of the quasar phenomenon. They might play a major role in distributing metals to the galactic surroundings, halting growth of the central black hole and providing kinetic energy "feedback" to regulate star formation in the host galaxies. Some models of galaxy evolution indicate that feedback requires. kinetic energy luminosities, L-K, that are similar to 5% of the quasar bolometric; L-K/L = M(w)v(2)/2 eta M(ace)c(2) similar to 5% is possible if M-w similar to M-ace (with v similar to 0.1c, and eta similar to 0.1). Here we describe results from two studies designed to test the theoretical energetics of radiatively driven outflows and derive observational constraints on the outflow geometry and physical properties emphasizing weaker outflow features like NALs and mini-BALs.

引用

页码：399 / 399

页数：1