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Description
| - We aim at studying the kinematics and origin of the disk in the eccentric binary system GG Car, whose primary component is proposed to be a B[e] supergiant. We find that the CO gas is located in a ring surrounding the eccentric binary system, and its kinematics agrees with Keplerian rotation with a velocity, projected to the line of sight, of 80 +/- 1 km s(-1). The CO ring has a column density of (5 +/- 3) x 10(21) cm(-2) and a temperature of 3200 +/- 500 K. In addition, the material is chemically enriched in C-13, which agrees with the primary component being slightly evolved off the main sequence. We discuss two possible scenarios for the origin of the circumbinary disk: (i) non-conservative Roche lobe overflow; and (ii) the possibility that the progenitor of the primary component could have been a classical Be star. Neither can be firmly excluded, but for Roche lobe overflow to occur, a combination of stellar and orbital parameter extrema would be required.
- We aim at studying the kinematics and origin of the disk in the eccentric binary system GG Car, whose primary component is proposed to be a B[e] supergiant. We find that the CO gas is located in a ring surrounding the eccentric binary system, and its kinematics agrees with Keplerian rotation with a velocity, projected to the line of sight, of 80 +/- 1 km s(-1). The CO ring has a column density of (5 +/- 3) x 10(21) cm(-2) and a temperature of 3200 +/- 500 K. In addition, the material is chemically enriched in C-13, which agrees with the primary component being slightly evolved off the main sequence. We discuss two possible scenarios for the origin of the circumbinary disk: (i) non-conservative Roche lobe overflow; and (ii) the possibility that the progenitor of the primary component could have been a classical Be star. Neither can be firmly excluded, but for Roche lobe overflow to occur, a combination of stellar and orbital parameter extrema would be required. (en)
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Title
| - Molecular emission from GG Carinae's circumbinary disk
- Molecular emission from GG Carinae's circumbinary disk (en)
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skos:prefLabel
| - Molecular emission from GG Carinae's circumbinary disk
- Molecular emission from GG Carinae's circumbinary disk (en)
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skos:notation
| - RIV/67985815:_____/13:00399497!RIV14-GA0-67985815
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
| - Kraus, Michaela
- Aret, Anna
- Oksala, Mary E.
- Nickeler, Dieter Horst
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/67985815:_____/13:00399497
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - stars; emission-line; Be stars (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - FR - Francouzská republika
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Borges Fernandes, M.
- Kraus, Michaela
- Aret, Anna
- Muratore, M. F.
- Cidale, L. S.
- Oksala, Mary E.
- Nickeler, Dieter Horst
- de Wit, A. J.
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1051/0004-6361/201220442
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