Volume 419, Number 3, June I 2004
|Page(s)||L39 - L42|
|Published online||07 May 2004|
Letter to the Editor
The infrared properties of the new outburst star IRAS 05436–0007 in quiescent phase
Konkoly Observatory of the Hungarian Academy of Sciences, PO Box 67, 1525 Budapest, Hungary
2 Department of Astronomy, Eötvös Loránd University, PO Box 32, 1518 Budapest, Hungary
3 Center for Astrophysics & Space Astronomy, University of Colorado at Boulder, 389 UCB, Boulder, CO 80309-0389, USA
Corresponding author: P. Ábrahám, firstname.lastname@example.org
Accepted: 10 April 2004
We compiled and investigated the infrared/sub-mm/mm SED of the new outburst star IRAS 05436-0007 in quiescent phase. The star is a flat-spectrum source, with an estimated total luminosity of , typical of low-mass T Tauri stars. The derived circumstellar mass of is rather high among low-mass YSOs. The observed SED differs from the SEDs of typical T Tauri stars and of 4 well-known EXors, and resembles more the SEDs of FU Orionis objects indicating the presence of a circumstellar envelope. IRAS 05436-0007 seems to be a class II source with an age of approximately 4 105 yr. In this evolutionary stage an accretion disk is already fully developed, though a circumstellar envelope may also be present. Observations of the present outburst will provide additional knowledge on the source.
Key words: stars: formation / stars: circumstellar matter / stars: individual: IRAS 05436-0007 / infrared: stars
© ESO, 2004
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