HST-GHRS observations of candidate β Pictoris-like circumstellar gaseous disks

A. Lecavelier Des Etangs; M. Deleuil; A. Vidal-Madjar; A. M. Lagrange-Henri; D. Backman; J. J. Lissauer; R. Ferlet; H. Beust; D. Mouillet

HST-GHRS observations of candidate β Pictoris-like circumstellar gaseous disks

A. Lecavelier Des Etangs
, M. Deleuil
, A. Vidal-Madjar
, A. M. Lagrange-Henri
, D. Backman
, J. J. Lissauer
, R. Ferlet
, H. Beust
, D. Mouillet

École Polytechnique

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

Abstract

We present HST-GHRS observations of four stars in search of β Pictoris-like circumstellar gaseous disks. We detected gas around HR 10, HR 2174 and 51 Oph at large distances from the stars; this gas is circumstellar since the absorption lines from very excited levels require densities incompatible with those found in the diffuse interstellar medium. The shape of the lines and the Mg II doublet ratio give evidence that clumpy gas is continuously falling onto these stars. Possible interpretations are discussed.

Original language	English
Pages (from-to)	228-236
Number of pages	9
Journal	Astronomy and Astrophysics
Volume	325
Issue number	1
Publication status	Published - 1 Sept 1997

Keywords

ISM: clouds
Line: formation
Stars: circumstellar matter; planetary systems
Stars: β Pictoris

Cite this

@article{2f1689db2ea34cb492c26f64f4152422,

title = "HST-GHRS observations of candidate β Pictoris-like circumstellar gaseous disks",

abstract = "We present HST-GHRS observations of four stars in search of β Pictoris-like circumstellar gaseous disks. We detected gas around HR 10, HR 2174 and 51 Oph at large distances from the stars; this gas is circumstellar since the absorption lines from very excited levels require densities incompatible with those found in the diffuse interstellar medium. The shape of the lines and the Mg II doublet ratio give evidence that clumpy gas is continuously falling onto these stars. Possible interpretations are discussed.",

keywords = "ISM: clouds, Line: formation, Stars: circumstellar matter; planetary systems, Stars: β Pictoris",

author = "\{Lecavelier Des Etangs\}, A. and M. Deleuil and A. Vidal-Madjar and Lagrange-Henri, \{A. M.\} and D. Backman and Lissauer, \{J. J.\} and R. Ferlet and H. Beust and D. Mouillet",

year = "1997",

month = sep,

day = "1",

language = "English",

volume = "325",

pages = "228--236",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

number = "1",

}

TY - JOUR

T1 - HST-GHRS observations of candidate β Pictoris-like circumstellar gaseous disks

AU - Lecavelier Des Etangs, A.

AU - Deleuil, M.

AU - Vidal-Madjar, A.

AU - Lagrange-Henri, A. M.

AU - Backman, D.

AU - Lissauer, J. J.

AU - Ferlet, R.

AU - Beust, H.

AU - Mouillet, D.

PY - 1997/9/1

Y1 - 1997/9/1

N2 - We present HST-GHRS observations of four stars in search of β Pictoris-like circumstellar gaseous disks. We detected gas around HR 10, HR 2174 and 51 Oph at large distances from the stars; this gas is circumstellar since the absorption lines from very excited levels require densities incompatible with those found in the diffuse interstellar medium. The shape of the lines and the Mg II doublet ratio give evidence that clumpy gas is continuously falling onto these stars. Possible interpretations are discussed.

AB - We present HST-GHRS observations of four stars in search of β Pictoris-like circumstellar gaseous disks. We detected gas around HR 10, HR 2174 and 51 Oph at large distances from the stars; this gas is circumstellar since the absorption lines from very excited levels require densities incompatible with those found in the diffuse interstellar medium. The shape of the lines and the Mg II doublet ratio give evidence that clumpy gas is continuously falling onto these stars. Possible interpretations are discussed.

KW - ISM: clouds

KW - Line: formation

KW - Stars: circumstellar matter; planetary systems

KW - Stars: β Pictoris

UR - https://www.scopus.com/pages/publications/0041994994

M3 - Article

AN - SCOPUS:0041994994

SN - 0004-6361

VL - 325

SP - 228

EP - 236

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 1

ER -

HST-GHRS observations of candidate β Pictoris-like circumstellar gaseous disks

Abstract

Keywords

Other files and links

Fingerprint

Cite this