Optical spectroscopy of IRAS 02091+6333

Bibcode
2003A&A...409..953K
DOI
10.1051/0004-6361:20031202
Kimeswenger, S.; Bacher, A.; Emprechtinger, M.; Grömer, G. E.; Kapferer, W.; Kausch, W.; Kitzbichler, M. G.; Lechner, M. F. M.; Lederle, C.; Uytterhoeven, K.; Zijlstra, A. A.
Bibliographical reference

Astronomy and Astrophysics, v.409, p.953-957 (2003)

Advertised on:
10
2003
Journal
Astronomy and Astrophysics
Number of authors
11
IAC number of authors
0
Citations
1
Refereed citations
1
Description
We present a detailed spectroscopic investigation, spanning four winters, of the asymptotic giant branch (AGB) star IRAS 02091+6333. Zijlstra & Weinberger (cite{ZW}) found a giant wall of dust around this star and modelled this unique phenomenon. However their work suffered from the quality of the optical investigations of the central object. Our spectroscopic investigation allowed us to define the spectral type and the interstellar foreground extinction more precisely. Accurate multi band photometry was carried out. This provides us with the possibility to derive the physical parameters of the system. The measurements presented here suggest a weak irregular photometric variability of the target, while there is no evidence of a spectroscopic variability over the last four years. Based on observations at the Innsbruck 60-cm telescope and the Flemish Mercator telescope on Roque de los Muchachos, Spain.
Type
Refereed

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