About: Molecular emission from GG Carinae's circumbinary disk

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Molecular emission from GG Carinae's circumbinary disk Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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)
Title	Molecular emission from GG Carinae's circumbinary disk Molecular emission from GG Carinae's circumbinary disk (en)
skos:prefLabel	Molecular emission from GG Carinae's circumbinary disk Molecular emission from GG Carinae's circumbinary disk (en)
skos:notation	RIV/67985815:_____/13:00399497!RIV14-GA0-67985815
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP209/11/1198)
http://linked.open...iv/cisloPeriodika	January
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Kraus, Michaela Aret, Anna Oksala, Mary E. Nickeler, Dieter Horst
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	89308
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/13:00399497
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	stars; emission-line; Be stars (en)
http://linked.open.../riv/klicoveSlovo	emission-line Be stars stars
http://linked.open...odStatuVydavatele	FR - Francouzská republika
http://linked.open...ontrolniKodProRIV	[48A640FAEFA6]
http://linked.open...i/riv/nazevZdroje	Astronomy & Astrophysics
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Circumstellar environment of evolved hot stars
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	549
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.
http://linked.open...ain/vavai/riv/wos	000313745000028
issn	0004-6361
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1051/0004-6361/201220442

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 75 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software