BF orionis: Evidence for an infalling circumstellar envelope

Alan D. Welty; Samuel C. Barden; David P. Huenemoerder; Lawrence W. Ramsey

doi:10.1086/116184

BF orionis: Evidence for an infalling circumstellar envelope

Alan D. Welty, Samuel C. Barden, David P. Huenemoerder, Lawrence W. Ramsey

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12 Scopus citations

Abstract

Analysis of the optical magnitudes and Balmer lines of the Herbig Ae/Be star BF Orionis confirm that the object is an early to mid A-type star, but appears to be below the zero-age main sequence. Enhanced metal line strengths (once thought to link BF Ori with the Am stars), line asymmetries, and radial velocities are shown to be signatures of an infalling circumstellar envelope. We investigate the possibility that BF Ori may have a late type companion, and conclude that it does not.

Original language	English (US)
Pages (from-to)	1673-1678
Number of pages	6
Journal	Astronomical Journal
Volume	103
Issue number	5
DOIs	https://doi.org/10.1086/116184
State	Published - May 1992

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/116184

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title = "BF orionis: Evidence for an infalling circumstellar envelope",

abstract = "Analysis of the optical magnitudes and Balmer lines of the Herbig Ae/Be star BF Orionis confirm that the object is an early to mid A-type star, but appears to be below the zero-age main sequence. Enhanced metal line strengths (once thought to link BF Ori with the Am stars), line asymmetries, and radial velocities are shown to be signatures of an infalling circumstellar envelope. We investigate the possibility that BF Ori may have a late type companion, and conclude that it does not.",

author = "Welty, {Alan D.} and Barden, {Samuel C.} and Huenemoerder, {David P.} and Ramsey, {Lawrence W.}",

year = "1992",

month = may,

doi = "10.1086/116184",

language = "English (US)",

volume = "103",

pages = "1673--1678",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

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TY - JOUR

T1 - BF orionis

T2 - Evidence for an infalling circumstellar envelope

AU - Welty, Alan D.

AU - Barden, Samuel C.

AU - Huenemoerder, David P.

AU - Ramsey, Lawrence W.

PY - 1992/5

Y1 - 1992/5

N2 - Analysis of the optical magnitudes and Balmer lines of the Herbig Ae/Be star BF Orionis confirm that the object is an early to mid A-type star, but appears to be below the zero-age main sequence. Enhanced metal line strengths (once thought to link BF Ori with the Am stars), line asymmetries, and radial velocities are shown to be signatures of an infalling circumstellar envelope. We investigate the possibility that BF Ori may have a late type companion, and conclude that it does not.

AB - Analysis of the optical magnitudes and Balmer lines of the Herbig Ae/Be star BF Orionis confirm that the object is an early to mid A-type star, but appears to be below the zero-age main sequence. Enhanced metal line strengths (once thought to link BF Ori with the Am stars), line asymmetries, and radial velocities are shown to be signatures of an infalling circumstellar envelope. We investigate the possibility that BF Ori may have a late type companion, and conclude that it does not.

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U2 - 10.1086/116184

DO - 10.1086/116184

M3 - Article

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JF - Astronomical Journal

IS - 5

ER -

BF orionis: Evidence for an infalling circumstellar envelope

Abstract

All Science Journal Classification (ASJC) codes

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