Hydrogen two-photon continuum emission from the Horseshoe filament in NGC 1275

R. M. Johnstone; R. E.A. Canning; A. C. Fabian; G. J. Ferland; M. Lykins; R. L. Porter; P. A.M. van Hoof; R. J.R. Williams

doi:10.1111/j.1365-2966.2012.21597.x

Hydrogen two-photon continuum emission from the Horseshoe filament in NGC 1275

R. M. Johnstone, R. E.A. Canning, A. C. Fabian, G. J. Ferland, M. Lykins, R. L. Porter, P. A.M. van Hoof, R. J.R. Williams

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10 Scopus citations

Abstract

Far-ultraviolet emission has been detected from a knot of Hα emission in the Horseshoe filament, far out in the NGC 1275 nebula. The flux detected relative to the brightness of the Hα line in the same spatial region is very close to that expected from hydrogen two-photon continuum emission in the particle heating model of Ferland et al. if reddening internal to the filaments is taken into account. We find no need to invoke other sources of far-ultraviolet emission such as hot stars or emission lines from Civ in intermediate-temperature gas to explain these data.

Original language	English
Pages (from-to)	1421-1429
Number of pages	9
Journal	Monthly Notices of the Royal Astronomical Society
Volume	425
Issue number	2
DOIs	https://doi.org/10.1111/j.1365-2966.2012.21597.x
State	Published - Sep 11 2012

Funding

Funders	Funder number
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China	0908877, 1108928, 1109061
Science and Technology Facilities Council	ST/J000647/1, ST/F00723X/1, ST/H00243X/1, ST/J001538/1

Keywords

Galaxies: clusters: individual: Perseus
Galaxies: individual: NGC 1275
Intergalactic medium
Ultraviolet: ISM

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1111/j.1365-2966.2012.21597.x

Cite this

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title = "Hydrogen two-photon continuum emission from the Horseshoe filament in NGC 1275",

abstract = "Far-ultraviolet emission has been detected from a knot of Hα emission in the Horseshoe filament, far out in the NGC 1275 nebula. The flux detected relative to the brightness of the Hα line in the same spatial region is very close to that expected from hydrogen two-photon continuum emission in the particle heating model of Ferland et al. if reddening internal to the filaments is taken into account. We find no need to invoke other sources of far-ultraviolet emission such as hot stars or emission lines from Civ in intermediate-temperature gas to explain these data.",

keywords = "Galaxies: clusters: individual: Perseus, Galaxies: individual: NGC 1275, Intergalactic medium, Ultraviolet: ISM",

author = "Johnstone, \{R. M.\} and Canning, \{R. E.A.\} and Fabian, \{A. C.\} and Ferland, \{G. J.\} and M. Lykins and Porter, \{R. L.\} and \{van Hoof\}, \{P. A.M.\} and Williams, \{R. J.R.\}",

year = "2012",

month = sep,

day = "11",

doi = "10.1111/j.1365-2966.2012.21597.x",

language = "English",

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pages = "1421--1429",

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T1 - Hydrogen two-photon continuum emission from the Horseshoe filament in NGC 1275

AU - Johnstone, R. M.

AU - Canning, R. E.A.

AU - Fabian, A. C.

AU - Ferland, G. J.

AU - Lykins, M.

AU - Porter, R. L.

AU - van Hoof, P. A.M.

AU - Williams, R. J.R.

PY - 2012/9/11

Y1 - 2012/9/11

N2 - Far-ultraviolet emission has been detected from a knot of Hα emission in the Horseshoe filament, far out in the NGC 1275 nebula. The flux detected relative to the brightness of the Hα line in the same spatial region is very close to that expected from hydrogen two-photon continuum emission in the particle heating model of Ferland et al. if reddening internal to the filaments is taken into account. We find no need to invoke other sources of far-ultraviolet emission such as hot stars or emission lines from Civ in intermediate-temperature gas to explain these data.

AB - Far-ultraviolet emission has been detected from a knot of Hα emission in the Horseshoe filament, far out in the NGC 1275 nebula. The flux detected relative to the brightness of the Hα line in the same spatial region is very close to that expected from hydrogen two-photon continuum emission in the particle heating model of Ferland et al. if reddening internal to the filaments is taken into account. We find no need to invoke other sources of far-ultraviolet emission such as hot stars or emission lines from Civ in intermediate-temperature gas to explain these data.

KW - Galaxies: clusters: individual: Perseus

KW - Galaxies: individual: NGC 1275

KW - Intergalactic medium

KW - Ultraviolet: ISM

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DO - 10.1111/j.1365-2966.2012.21597.x

M3 - Article

AN - SCOPUS:84865396824

SN - 0035-8711

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SP - 1421

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

Hydrogen two-photon continuum emission from the Horseshoe filament in NGC 1275

Abstract

Funding

Keywords

ASJC Scopus subject areas

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