NGC 7421: surfing the intracluster medium?

Stuart D. Ryder; G. Purcell; D. Davis; V. Andersen

doi:10.1071/AS97081

NGC 7421: surfing the intracluster medium?

Stuart D. Ryder^*, G. Purcell, D. Davis, V. Andersen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

NGC 7421 is a barred spiral that is displaced from the centre of its optical envelope, and has a 'bow-shock'-like western boundary, both suggestive of interaction with an intracluster medium. We have used five configurations of the ATCA to map the distribution and kinematics of H I in NGC7421, and find supportive evidence for this scenario in the form of an H I 'wake'. When compared with ROSAT PSPC observations of the diffuse hot gas in the surrounding group of galaxies, these new ATCA results will allow us to place new constraints on the density and dynamics of the intracluster medium.

Original language	English
Pages (from-to)	81-84
Number of pages	4
Journal	Publications of the Astronomical Society of Australia
Volume	14
Issue number	1
DOIs	https://doi.org/10.1071/AS97081
Publication status	Published - 1 Jan 1997
Externally published	Yes

Keywords

Galaxies: individual (NGC 7421)
Galaxies: intergalactic medium
Galaxies: kinematics and dynamics
Radio lines: galaxies

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10.1071/AS97081

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@article{083c82b7a30e474c862287fac1bcdb31,

title = "NGC 7421: surfing the intracluster medium?",

abstract = "NGC 7421 is a barred spiral that is displaced from the centre of its optical envelope, and has a 'bow-shock'-like western boundary, both suggestive of interaction with an intracluster medium. We have used five configurations of the ATCA to map the distribution and kinematics of H I in NGC7421, and find supportive evidence for this scenario in the form of an H I 'wake'. When compared with ROSAT PSPC observations of the diffuse hot gas in the surrounding group of galaxies, these new ATCA results will allow us to place new constraints on the density and dynamics of the intracluster medium.",

keywords = "Galaxies: individual (NGC 7421), Galaxies: intergalactic medium, Galaxies: kinematics and dynamics, Radio lines: galaxies",

author = "Ryder, {Stuart D.} and G. Purcell and D. Davis and V. Andersen",

year = "1997",

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doi = "10.1071/AS97081",

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volume = "14",

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T1 - NGC 7421

T2 - surfing the intracluster medium?

AU - Ryder, Stuart D.

AU - Purcell, G.

AU - Davis, D.

AU - Andersen, V.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - NGC 7421 is a barred spiral that is displaced from the centre of its optical envelope, and has a 'bow-shock'-like western boundary, both suggestive of interaction with an intracluster medium. We have used five configurations of the ATCA to map the distribution and kinematics of H I in NGC7421, and find supportive evidence for this scenario in the form of an H I 'wake'. When compared with ROSAT PSPC observations of the diffuse hot gas in the surrounding group of galaxies, these new ATCA results will allow us to place new constraints on the density and dynamics of the intracluster medium.

AB - NGC 7421 is a barred spiral that is displaced from the centre of its optical envelope, and has a 'bow-shock'-like western boundary, both suggestive of interaction with an intracluster medium. We have used five configurations of the ATCA to map the distribution and kinematics of H I in NGC7421, and find supportive evidence for this scenario in the form of an H I 'wake'. When compared with ROSAT PSPC observations of the diffuse hot gas in the surrounding group of galaxies, these new ATCA results will allow us to place new constraints on the density and dynamics of the intracluster medium.

KW - Galaxies: individual (NGC 7421)

KW - Galaxies: intergalactic medium

KW - Galaxies: kinematics and dynamics

KW - Radio lines: galaxies

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U2 - 10.1071/AS97081

DO - 10.1071/AS97081

M3 - Article

AN - SCOPUS:0038872909

VL - 14

SP - 81

EP - 84

JO - Publications of the Astronomical Society of Australia

JF - Publications of the Astronomical Society of Australia

SN - 1448-6083

IS - 1

ER -

NGC 7421: surfing the intracluster medium?

Abstract

Keywords

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