Dust and ionized gas association in E/S0 galaxies with dust lanes: clues to their origin

被引：18

作者：

Finkelman, Ido ^{[1
,2
]}

Brosch, Noah ^{[1
,2
]}

Funes, Jose G. S. J. ^{[3
]}

Barway, Sudhanshu ^{[4
]}

Kniazev, Alexei ^{[4
,5
]}

Vaeisaenen, Petri ^{[4
,5
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Wise Observ, IL-69978 Tel Aviv, Israel

[2] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[3] Vatican Observ, I-00120 Vatican City, Vatican

[4] S African Astron Observ, ZA-7935 Cape Town, South Africa

[5] S African Large Telescope Fdn, ZA-7935 Cape Town, South Africa

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2012年 / 422卷 / 02期

基金：

美国国家航空航天局; 新加坡国家研究基金会; 美国国家科学基金会;

关键词：

dust; extinction; H II regions; galaxies: elliptical and lenticular; cD; galaxies: ISM; EXTRAGALACTIC EXTINCTION LAW; AMES ELLIPTIC GALAXIES; INTERSTELLAR MATTER; MOLECULAR GAS; X-RAY; INFRARED-EMISSION; ATLAS(3D) PROJECT; SAURON PROJECT; HOT GAS; SPITZER OBSERVATIONS;

D O I：

10.1111/j.1365-2966.2012.20710.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results from an ongoing programme to study the dust and ionized gas in E/S0 galaxies with dust lanes. Our data, together with results from previous studies of E/S0 galaxies, are used to demonstrate the close relationship between these two components. This relationship is discussed in light of our current understanding of the nature and origin of the interstellar medium ( ISM), and in particular in the context of the interplay between the different multi-temperature components. We show that focusing on dust obscured regions as tracers of the ISM, and on their properties, serves as independent evidence for the external origin of the dust and ionized gas.

引用

页码：1384 / 1393

页数：10

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