Jet interactions with a giant molecular cloud in the Galactic centre and ejection of hypervelocity stars

J. Silk; V. Antonuccio-Delogu; Y. Dubois; V. Gaibler; M.~R. Haas; S. Khochfar; Martin Krause

doi:10.1051/0004-6361/201220049

Jet interactions with a giant molecular cloud in the Galactic centre and ejection of hypervelocity stars

J. Silk, V. Antonuccio-Delogu, Y. Dubois, V. Gaibler, M.~R. Haas, S. Khochfar, Martin Krause

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Abstract

The hypervelocity OB stars in the Milky Way Galaxy were ejected from the central regions some 10-100 million years ago. We argue that these stars, as well as many more abundant bound OB stars in the innermost few parsecs, were generated by the interactions of an AGN jet from the central black hole with a dense molecular cloud. Considerations of the associated energy and momentum injection have broader implications for the possible origin of the Fermi bubbles and for the enrichment of the intergalactic medium.

Original language	English
Pages (from-to)	L11
Number of pages	4
Journal	Astronomy & Astrophysics
Volume	545
DOIs	https://doi.org/10.1051/0004-6361/201220049
Publication status	Published - 21 Sept 2012

Keywords

galaxies: active, stars: formation, Galaxy: center

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10.1051/0004-6361/201220049

aa20049-12Final published version, 565 KBLicence: CC BY-NC

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title = "Jet interactions with a giant molecular cloud in the Galactic centre and ejection of hypervelocity stars",

abstract = "The hypervelocity OB stars in the Milky Way Galaxy were ejected from the central regions some 10-100 million years ago. We argue that these stars, as well as many more abundant bound OB stars in the innermost few parsecs, were generated by the interactions of an AGN jet from the central black hole with a dense molecular cloud. Considerations of the associated energy and momentum injection have broader implications for the possible origin of the Fermi bubbles and for the enrichment of the intergalactic medium.",

keywords = "galaxies: active, stars: formation, Galaxy: center",

author = "J. Silk and V. Antonuccio-Delogu and Y. Dubois and V. Gaibler and M.~R. Haas and S. Khochfar and Martin Krause",

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TY - JOUR

T1 - Jet interactions with a giant molecular cloud in the Galactic centre and ejection of hypervelocity stars

AU - Silk, J.

AU - Antonuccio-Delogu, V.

AU - Dubois, Y.

AU - Gaibler, V.

AU - Haas, M.~R.

AU - Khochfar, S.

AU - Krause, Martin

PY - 2012/9/21

Y1 - 2012/9/21

N2 - The hypervelocity OB stars in the Milky Way Galaxy were ejected from the central regions some 10-100 million years ago. We argue that these stars, as well as many more abundant bound OB stars in the innermost few parsecs, were generated by the interactions of an AGN jet from the central black hole with a dense molecular cloud. Considerations of the associated energy and momentum injection have broader implications for the possible origin of the Fermi bubbles and for the enrichment of the intergalactic medium.

AB - The hypervelocity OB stars in the Milky Way Galaxy were ejected from the central regions some 10-100 million years ago. We argue that these stars, as well as many more abundant bound OB stars in the innermost few parsecs, were generated by the interactions of an AGN jet from the central black hole with a dense molecular cloud. Considerations of the associated energy and momentum injection have broader implications for the possible origin of the Fermi bubbles and for the enrichment of the intergalactic medium.

KW - galaxies: active, stars: formation, Galaxy: center

U2 - 10.1051/0004-6361/201220049

DO - 10.1051/0004-6361/201220049

M3 - Letter

SN - 0004-6361

VL - 545

SP - L11

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

ER -

Jet interactions with a giant molecular cloud in the Galactic centre and ejection of hypervelocity stars

Abstract

Keywords

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