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Article: Evidence for gamma-ray jets in the Milky Way

TitleEvidence for gamma-ray jets in the Milky Way
Authors
Keywordsgalaxies: active
Issue Date2012
Citation
Astrophysical Journal, 2012, v. 753, n. 1 How to Cite?
AbstractAlthough accretion onto supermassive black holes in other galaxies is seen to produce powerful jets in X-ray and radio, no convincing detection has ever been made of a kpc-scale jet in the Milky Way. The recently discovered pair of 10kpc tall gamma-ray bubbles in our Galaxy may be signs of earlier jet activity from the central black hole. In this paper, we identify a gamma-ray cocoon feature in the southern bubble, a jet-like feature along the cocoon's axis of symmetry, and another directly opposite the Galactic center in the north. Both the cocoon and jet-like feature have a hard spectrum with spectral index ∼ - 2 from 1 to 100GeV, with a cocoon total luminosity of (5.5 ± 0.45) × 1035 and luminosity of the jet-like feature of (1.8 ± 0.35) × 1035ergs-1 at 1-100GeV. If confirmed, these jets are the first resolved gamma-ray jets ever seen. © 2012. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/226699
ISSN
2015 Impact Factor: 5.909
2015 SCImago Journal Rankings: 3.266

 

DC FieldValueLanguage
dc.contributor.authorSu, Meng-
dc.contributor.authorFinkbeiner, Douglas P.-
dc.date.accessioned2016-06-29T01:58:20Z-
dc.date.available2016-06-29T01:58:20Z-
dc.date.issued2012-
dc.identifier.citationAstrophysical Journal, 2012, v. 753, n. 1-
dc.identifier.issn0004-637X-
dc.identifier.urihttp://hdl.handle.net/10722/226699-
dc.description.abstractAlthough accretion onto supermassive black holes in other galaxies is seen to produce powerful jets in X-ray and radio, no convincing detection has ever been made of a kpc-scale jet in the Milky Way. The recently discovered pair of 10kpc tall gamma-ray bubbles in our Galaxy may be signs of earlier jet activity from the central black hole. In this paper, we identify a gamma-ray cocoon feature in the southern bubble, a jet-like feature along the cocoon's axis of symmetry, and another directly opposite the Galactic center in the north. Both the cocoon and jet-like feature have a hard spectrum with spectral index ∼ - 2 from 1 to 100GeV, with a cocoon total luminosity of (5.5 ± 0.45) × 1035 and luminosity of the jet-like feature of (1.8 ± 0.35) × 1035ergs-1 at 1-100GeV. If confirmed, these jets are the first resolved gamma-ray jets ever seen. © 2012. The American Astronomical Society. All rights reserved.-
dc.languageeng-
dc.relation.ispartofAstrophysical Journal-
dc.subjectgalaxies: active-
dc.titleEvidence for gamma-ray jets in the Milky Way-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1088/0004-637X/753/1/61-
dc.identifier.scopuseid_2-s2.0-84862571725-
dc.identifier.volume753-
dc.identifier.issue1-
dc.identifier.spagenull-
dc.identifier.epagenull-
dc.identifier.eissn1538-4357-

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