Waiting in the Wings: Reflected X‐Ray Emission from the Homunculus Nebula | Zendy

M. F. Corcoran | Zendy; Kenji Hamaguchi | Zendy; T. Gull | Zendy; Kris Davidson | Zendy; Robert Petre | Zendy; D. J. Hillier | Zendy; Nathan Smith | Zendy; A. Damineli | Zendy; Jon A. Morse | Zendy; N. R. Walborn | Zendy; E. M. Verner | Zendy; N. R. Collins | Zendy; S. M. White | Zendy; J. M. Pittard | Zendy; K. Weis | Zendy; D. J. Bomans | Zendy; Y. Butt | Zendy

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Waiting in the Wings: Reflected X‐Ray Emission from the Homunculus Nebula

Author(s) -

M. F. Corcoran,

Kenji Hamaguchi,

T. Gull,

Kris Davidson,

Robert Petre,

D. J. Hillier,

Nathan Smith,

A. Damineli,

Jon A. Morse,

N. R. Walborn,

E. M. Verner,

N. R. Collins,

S. M. White,

J. M. Pittard,

K. Weis,

D. J. Bomans,

Y. Butt

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/423024

Subject(s) - physics , nebula , astrophysics , reflection nebula , astronomy , star (game theory) , reflection (computer programming) , emission nebula , outflow , emission spectrum , stars , spectral line , computer science , programming language , meteorology

We report the first detection of X-ray emission associated with theHomunculus Nebula which surrounds the supermassive star Eta Carinae. Theemission is characterized by a temperature in excess of 100 MK, and isconsistent with scattering of the time-delayed X-ray flux associated with thestar. The nebular emission is bright in the northwestern lobe and near thecentral regions of the Homunculus, and fainter in the southeastern lobe. Wealso report the detection of an unusually broad Fe K fluorescent line, whichmay indicate fluorescent scattering off the wind of a companion star or someother high velocity outflow. The X-ray Homunculus is the nearest member of thesmall class of Galactic X-ray reflection nebulae, and the only one in whichboth the emitting and reflecting sources are distinguishable.Comment: 17 pages, 5 figures, accepted by Ap

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