J/A+A/499/827 Disk of υ Sgr (Netolicky+, 2009)
The circumbinary dusty disk around the hydrogen-deficient binary star
υ Sagittarii.
Netolicky M., Bonneau D., Chesneau O., Harmanec P., Koubsky P., Mourard D.,
Stee P.
<Astron. Astrophys., 499, 827-833 (2009)>
=2009A&A...499..827N 2009A&A...499..827N (SIMBAD/NED BibCode)
ADC_Keywords: Stars, emission
Keywords: stars: emission-line, Be - stars: binaries: close -
stars: circumstellar matter - techniques: interferometric -
stars: individual: upsilon Sagittarii
Abstract:
The aim of this paper is to determine the properties of the dusty
environment of the hydrogen-deficient binary system upsilon Sgr,
whose binary properties and other characteristics are poorly known.
We obtained the first mid-IR interferometric observations of
upsilon Sgr using the instrument MIDI of the VLTI used with different
pairs of 1.8m and 8m telescopes. The calibrated visibilities, the N
band spectrum, and the SED were compared with disk models computed
with the MC3D code to determine the geometry and chemical composition
of the envelope.
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Author's address:
M. Netolicky,
(End) Patricia Vannier [CDS] 04-Jan-2010