Hubble Space Telescope imaging of the wind-blown lobe NGC 6165

Paul Scowen; Jeff Hester; Arthur Code; Glen Mackie; C. Roger Lynds; Earl J. O'Neil

doi:10.1086/176131

Hubble Space Telescope imaging of the wind-blown lobe NGC 6165

Paul Scowen, Jeff Hester, Arthur Code, Glen Mackie, C. Roger Lynds, Earl J. O'Neil

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

2 Scopus citations

Abstract

We have used the Hubble Space Telescope wide field/planetary camera to study the structure of the bipolar nebular NGC 6164/6165. Our study concentrates on the structure of a number of small clumps of material embedded within the southern lobe of the system (NGC 6165). These knots have a cometary appearance, with bright surfaces facing the central star, and streamers of material pointing away from the star. We present a simple model in which a bow shock forms between the stellar wind and clump material which has been photoionized by the UV radiation from HD 148937. The observed streamers are clump material which has been driven out of the region of high pressure between the clump and the bow shock. This model is able to account for most observed properties of the system quantitatively and leads to an estimated mass-loss rate for the star of 2.2 × 10^-5 M_⊙ yr^-1.

Original language	English (US)
Pages (from-to)	196-200
Number of pages	5
Journal	Astrophysical Journal
Volume	450
Issue number	1
DOIs	https://doi.org/10.1086/176131
State	Published - Sep 1 1995

Keywords

H II regions
ISM: individual (NGC 6165)
ISM: kinematics and dynamics
Stars: individual (HD 148937)
Stars: mass loss

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/176131

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@article{83f6b580d4c54e17b3b648444de928bd,

title = "Hubble Space Telescope imaging of the wind-blown lobe NGC 6165",

abstract = "We have used the Hubble Space Telescope wide field/planetary camera to study the structure of the bipolar nebular NGC 6164/6165. Our study concentrates on the structure of a number of small clumps of material embedded within the southern lobe of the system (NGC 6165). These knots have a cometary appearance, with bright surfaces facing the central star, and streamers of material pointing away from the star. We present a simple model in which a bow shock forms between the stellar wind and clump material which has been photoionized by the UV radiation from HD 148937. The observed streamers are clump material which has been driven out of the region of high pressure between the clump and the bow shock. This model is able to account for most observed properties of the system quantitatively and leads to an estimated mass-loss rate for the star of 2.2 × 10-5 M⊙ yr-1.",

keywords = "H II regions, ISM: individual (NGC 6165), ISM: kinematics and dynamics, Stars: individual (HD 148937), Stars: mass loss",

author = "Paul Scowen and Jeff Hester and Arthur Code and Glen Mackie and Lynds, {C. Roger} and O'Neil, {Earl J.}",

year = "1995",

month = sep,

day = "1",

doi = "10.1086/176131",

language = "English (US)",

volume = "450",

pages = "196--200",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1",

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TY - JOUR

T1 - Hubble Space Telescope imaging of the wind-blown lobe NGC 6165

AU - Scowen, Paul

AU - Hester, Jeff

AU - Code, Arthur

AU - Mackie, Glen

AU - Lynds, C. Roger

AU - O'Neil, Earl J.

PY - 1995/9/1

Y1 - 1995/9/1

N2 - We have used the Hubble Space Telescope wide field/planetary camera to study the structure of the bipolar nebular NGC 6164/6165. Our study concentrates on the structure of a number of small clumps of material embedded within the southern lobe of the system (NGC 6165). These knots have a cometary appearance, with bright surfaces facing the central star, and streamers of material pointing away from the star. We present a simple model in which a bow shock forms between the stellar wind and clump material which has been photoionized by the UV radiation from HD 148937. The observed streamers are clump material which has been driven out of the region of high pressure between the clump and the bow shock. This model is able to account for most observed properties of the system quantitatively and leads to an estimated mass-loss rate for the star of 2.2 × 10-5 M⊙ yr-1.

AB - We have used the Hubble Space Telescope wide field/planetary camera to study the structure of the bipolar nebular NGC 6164/6165. Our study concentrates on the structure of a number of small clumps of material embedded within the southern lobe of the system (NGC 6165). These knots have a cometary appearance, with bright surfaces facing the central star, and streamers of material pointing away from the star. We present a simple model in which a bow shock forms between the stellar wind and clump material which has been photoionized by the UV radiation from HD 148937. The observed streamers are clump material which has been driven out of the region of high pressure between the clump and the bow shock. This model is able to account for most observed properties of the system quantitatively and leads to an estimated mass-loss rate for the star of 2.2 × 10-5 M⊙ yr-1.

KW - H II regions

KW - ISM: individual (NGC 6165)

KW - ISM: kinematics and dynamics

KW - Stars: individual (HD 148937)

KW - Stars: mass loss

UR - http://www.scopus.com/inward/record.url?scp=11944255270&partnerID=8YFLogxK

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U2 - 10.1086/176131

DO - 10.1086/176131

M3 - Article

AN - SCOPUS:11944255270

SN - 0004-637X

VL - 450

SP - 196

EP - 200

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

Hubble Space Telescope imaging of the wind-blown lobe NGC 6165

Abstract

Keywords

ASJC Scopus subject areas

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