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Dissecting X-ray-Emitting Gas Around the Center of Our Galaxy

At the center of our Galaxy there is a black hole 4-million-fold more massive than the Sun. Wang et al. (p. 981; see the Perspective by Schnittman) report x-ray data on the accretion flow around this supermassive black hole, revealing how it interacts with its surroundings. The data rule out the pos... Full description

Journal Title: Science 29 August 2013, Vol.341(6149), pp.981-983
Main Author: Wang, Q, D
Other Authors: Nowak, M, A , Markoff, S, B , Baganoff, F, K , Nayakshin, S , Yuan, F , Cuadra, J , Davis, J , Dexter, J , Fabian, A, C , Grosso, N , Haggard, D , Houck, J , Ji, L , Li, Z , Neilsen, J , Porquet, D , Ripple, F , Shcherbakov, R, V
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0036-8075 ; E-ISSN: 1095-9203 ; DOI: 10.1126/science.1240755
Link: https://hal.archives-ouvertes.fr/hal-02326931
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recordid: hal_soai_HAL_hal_02326931v1
title: Dissecting X-ray-Emitting Gas Around the Center of Our Galaxy
format: Article
creator:
  • Wang, Q, D
  • Nowak, M, A
  • Markoff, S, B
  • Baganoff, F, K
  • Nayakshin, S
  • Yuan, F
  • Cuadra, J
  • Davis, J
  • Dexter, J
  • Fabian, A, C
  • Grosso, N
  • Haggard, D
  • Houck, J
  • Ji, L
  • Li, Z
  • Neilsen, J
  • Porquet, D
  • Ripple, F
  • Shcherbakov, R, V
subjects:
  • Sciences of the Universe
  • Sciences of the Universe
  • Astrophysics
  • Sciences of the Universe
  • Astrophysics
  • Galactic Astrophysics
  • Sciences of the Universe
  • Astrophysics
  • High Energy Astrophysical Phenomena
  • Sciences (General)
  • Biology
ispartof: Science, 29 August 2013, Vol.341(6149), pp.981-983
description: At the center of our Galaxy there is a black hole 4-million-fold more massive than the Sun. Wang et al. (p. 981; see the Perspective by Schnittman) report x-ray data on the accretion flow around this supermassive black hole, revealing how it interacts with its surroundings. The data rule out the possibility that the quiescent (that is, flare-free) x-rays observed are produced by coronal emission from a population of stars at the center of the Galaxy and also rule out the possibility that there is a pure radiatively inefficient accretion flow with no outflows. [PUBLICATION ] Most supermassive black holes (SMBHs) are accreting at very low levels and are difficult to distinguish from the galaxy centers where they reside. Our own Galaxy's SMBH provides an instructive exception, and we present a close-up view of its quiescent x-ray emission based on 3 megaseconds of Chandra observations. Although the x-ray emission is elongated and aligns well with a surrounding disk of massive stars,...
language: eng
source:
identifier: ISSN: 0036-8075 ; E-ISSN: 1095-9203 ; DOI: 10.1126/science.1240755
fulltext: no_fulltext
issn:
  • 0036-8075
  • 00368075
  • 1095-9203
  • 10959203
url: Link


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titleDissecting X-ray-Emitting Gas Around the Center of Our Galaxy
creatorWang, Q, D ; Nowak, M, A ; Markoff, S, B ; Baganoff, F, K ; Nayakshin, S ; Yuan, F ; Cuadra, J ; Davis, J ; Dexter, J ; Fabian, A, C ; Grosso, N ; Haggard, D ; Houck, J ; Ji, L ; Li, Z ; Neilsen, J ; Porquet, D ; Ripple, F ; Shcherbakov, R, V
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subjectSciences of the Universe ; Sciences of the Universe ; Astrophysics ; Sciences of the Universe ; Astrophysics ; Galactic Astrophysics ; Sciences of the Universe ; Astrophysics ; High Energy Astrophysical Phenomena ; Sciences (General) ; Biology
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descriptionAt the center of our Galaxy there is a black hole 4-million-fold more massive than the Sun. Wang et al. (p. 981; see the Perspective by Schnittman) report x-ray data on the accretion flow around this supermassive black hole, revealing how it interacts with its surroundings. The data rule out the possibility that the quiescent (that is, flare-free) x-rays observed are produced by coronal emission from a population of stars at the center of the Galaxy and also rule out the possibility that there is a pure radiatively inefficient accretion flow with no outflows. [PUBLICATION ] Most supermassive black holes (SMBHs) are accreting at very low levels and are difficult to distinguish from the galaxy centers where they reside. Our own Galaxy's SMBH provides an instructive exception, and we present a close-up view of its quiescent x-ray emission based on 3 megaseconds of Chandra observations. Although the x-ray emission is elongated and aligns well with a surrounding disk of massive stars,...
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