New observations of ULX supershells, and their implications

被引：13

作者：

Russell, D. M. ^{[1
]}

Yang, Y. -J. ^{[1
]}

Gladstone, J. C. ^{[2
]}

Wiersema, K. ^{[3
]}

Roberts, T. P. ^{[4
]}

机构：

[1] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1090 GE Amsterdam, Netherlands

[2] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada

[3] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[4] Univ Durham, Dept Phys, Durham DH1 3LE, England

来源：

ASTRONOMISCHE NACHRICHTEN | 2011年 / 332卷 / 04期

关键词：

HII regions; ISM: bubbles; ISM: jets and outflows; shock waves; X-rays: binaries; X-RAY SOURCE; SOURCE NGC-5204 X-1; BLACK-HOLE; OPTICAL COUNTERPARTS; POWERFUL JETS; RADIO; NEBULA; MICROQUASARS; ENVIRONMENT; CYGNUS-X-1;

D O I：

10.1002/asna.201011502

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

New optical narrowband imaging observations of the fields of several ultra-luminous X-ray sources (ULXs) are presented. Known supershell nebulae are associated with a number of these ULXs, which we detect in emission lines filters such as [S II], He II, [OII] and [OIII]. New nebulae are discovered, which are candidate ULX-powered supershells. The morphologies and emission line fluxes of these nebulae could then be used to infer the properties of the emitting gas, which gives clues to the energizing source (photoionization and/or shock-excitation, both possibly from the ULX). Studies of supershells powered by ULXs can help to constrain the nature of ULXs themselves, such as the isotropy of the X-ray emission and the strength of their outflows. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：371 / 374

页数：4

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