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VLT/NACO adaptive optics imaging of the TY CrA system - A fourth stellar component candidate detected

Authors :
G. Chauvin
A.-M. Lagrange
H. Beust
T. Fusco
D. Mouillet
F. Lacombe
P. Pujet
G. Rousset
E. Gendron
J.-M. Conan
D. Bauduin
D. Rouan
W. Brandner
R. Lenzen
N. Hubin
M. Hartung
Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA)
Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Pôle Astronomie du LESIA
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris
Source :
Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, 2003, 406, pp.L51-L54. ⟨10.1051/0004-6361:20030554⟩
Publication Year :
2003

Abstract

We report the detection of a possible subsolar mass companion to the triple young system TY CrA using the NACO instrument at the VLT UT4 during its commissioning. Assuming for TY CrA a distance similar to that of the close binary system HD 176386, the photometric spectral type of this fourth stellar component candidate is consistent with an ~M4 star. We discuss the dynamical stability of this possible quadruple system as well as the possible location of dusty particles inside or outside the system.<br />4 pages, 2 figures postscript

Details

Language :
English
ISSN :
00046361
Database :
OpenAIRE
Journal :
Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, 2003, 406, pp.L51-L54. ⟨10.1051/0004-6361:20030554⟩
Accession number :
edsair.doi.dedup.....dd7400adede75a8cf87a34acd2e3f8e8
Full Text :
https://doi.org/10.1051/0004-6361:20030554⟩