He 3-519: A peculiar post-LBV, pre-WN star?

Kris Davidson; Roberta M. Humphreys; Arsen Hajian; Yervant Terzian

doi:10.1086/172833

He 3-519: A peculiar post-LBV, pre-WN star?

Kris Davidson, Roberta M. Humphreys, Arsen Hajian, Yervant Terzian

Minnesota Institute for Astrophysics

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22 Scopus citations

Abstract

We report IUE and ground-based data indicating that the star He 3-519 has a distance of roughly 8 kpc and an absolute bolometric magnitude of about -11, comparable to AG Car. Its luminosity, spectrum, and large, massive circumstellar shell indicate that this may be a post-LBV object which has not yet become a full-fledged WN star. One notable peculiarity of He 3-519 is its prominent Fe III (?) γ3008 emission; the reason why this feature is so bright in this star's dense envelope or wind, but not in other related stars, is not yet clear.

Original language	English (US)
Pages (from-to)	336-341
Number of pages	6
Journal	Astrophysical Journal
Volume	411
Issue number	1
DOIs	https://doi.org/10.1086/172833
State	Published - Jul 1 1993

Keywords

Stars: individual (He 3-519)
Supergiants
Ultraviolet: stars

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title = "He 3-519: A peculiar post-LBV, pre-WN star?",

abstract = "We report IUE and ground-based data indicating that the star He 3-519 has a distance of roughly 8 kpc and an absolute bolometric magnitude of about -11, comparable to AG Car. Its luminosity, spectrum, and large, massive circumstellar shell indicate that this may be a post-LBV object which has not yet become a full-fledged WN star. One notable peculiarity of He 3-519 is its prominent Fe III (?) γ3008 emission; the reason why this feature is so bright in this star's dense envelope or wind, but not in other related stars, is not yet clear.",

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T1 - He 3-519

T2 - A peculiar post-LBV, pre-WN star?

AU - Davidson, Kris

AU - Humphreys, Roberta M.

AU - Hajian, Arsen

AU - Terzian, Yervant

PY - 1993/7/1

Y1 - 1993/7/1

N2 - We report IUE and ground-based data indicating that the star He 3-519 has a distance of roughly 8 kpc and an absolute bolometric magnitude of about -11, comparable to AG Car. Its luminosity, spectrum, and large, massive circumstellar shell indicate that this may be a post-LBV object which has not yet become a full-fledged WN star. One notable peculiarity of He 3-519 is its prominent Fe III (?) γ3008 emission; the reason why this feature is so bright in this star's dense envelope or wind, but not in other related stars, is not yet clear.

AB - We report IUE and ground-based data indicating that the star He 3-519 has a distance of roughly 8 kpc and an absolute bolometric magnitude of about -11, comparable to AG Car. Its luminosity, spectrum, and large, massive circumstellar shell indicate that this may be a post-LBV object which has not yet become a full-fledged WN star. One notable peculiarity of He 3-519 is its prominent Fe III (?) γ3008 emission; the reason why this feature is so bright in this star's dense envelope or wind, but not in other related stars, is not yet clear.

KW - Stars: individual (He 3-519)

KW - Supergiants

KW - Ultraviolet: stars

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JF - Astrophysical Journal

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He 3-519: A peculiar post-LBV, pre-WN star?

Abstract

Keywords

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