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Inhomogeneous molecular ring around the B[e] supergiant LHA 120-S 73
- 1.0463878 - ASÚ 2017 RIV FR eng J - Journal Article
Kraus, Michaela - Cidale, L.S. - Arias, M.L. - Maravelias, Grigorios - Nickeler, Dieter Horst - Torres, A.F. - Borges Fernandes, M. - Aret, A. - Curé, M. - Vallverdú, R. - Barbá, R.H.
Inhomogeneous molecular ring around the B[e] supergiant LHA 120-S 73.
Astronomy & Astrophysics. Roč. 593, September (2016), s. 1-14. ISSN 0004-6361. E-ISSN 1432-0746
R&D Projects: GA ČR(CZ) GA14-21373S; GA MŠMT(CZ) 7AMB14AR017
Institutional support: RVO:67985815
Keywords : circumstellar matter * early-type stars * supergiants
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 5.014, year: 2016
We aim to improve our knowledge on the structure and dynamics of the circumstellar disk of the Large Magellanic Cloud B[e] supergiant LHA 120-S 73. High-resolution optical and near-infrared spectroscopic data were obtained over a period of 16 and 7 yr, respectively. The spectra cover the diagnostic emission lines from [Ca ii] and [O i], as well as the CO bands. These features trace the disk at different distances from the star. We analyzed the kinematics of the individual emission regions by modeling their emission profiles. A low-resolution mid-infrared spectrum was obtained as well, which provides information on the composition of the dusty disk.
Permanent Link: http://hdl.handle.net/11104/0262961
Number of the records: 1