| Issue |
A&A
Volume 382, Number 3, FebruaryII 2002
|
|
|---|---|---|
| Page(s) | 1005 - 1008 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:20011667 | |
| Published online | 15 February 2002 | |
IRAS 18576+0341: A new addition to the class of Galactic Luminous Blue Variables
1
ESO/ST-ECF, Karl-Schwarzschild-Strasse 2, 85748 Garching bei Muenchen, Germany e-mail: apasqual@eso.org
2
ESO, Karl-Schwarzschild-Strasse 2, 85748 Garching bei Muenchen, Germany e-mail: fcomeron@eso.org
Corresponding author: A. Pasquali, apasqual@eso.org
Received:
11
October
2001
Accepted:
16
November
2001
We present JHK photometry and low-resolution HK spectroscopy of
IRAS 18576+0341, a galactic Luminous Blue Variable (LBV) candidate.
The star is heavily reddened with observed magnitudes
J = 13.21, H = 9.88 and K = 8.06. These values and previously published
photometry define a lightcurve with an amplitude of 
1.4 mag between
1999 June and 2001 August, quite compatible with what is observed for
well-studied LBVs, i.e. AG Carinae and HR Carinae. The
spectrum of IRAS 18576+0341
is characterised by prominent H, He and Fe emissions,
which are recurrent features in the spectra of well known
LBVs such as He 3-519. These findings together with the recent detection of
an associated circumstellar nebula (Ueta et al. [CITE]) confirm the
LBV nature of IRAS 18576+0341.
Key words: stars: emission line, circumstellar matter, outflows
© ESO, 2002
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