The long-term evolution of 7 FU Orionis-type stars at infrared wavelengths

Details The long-term evolution of 7 FU Orionis-type stars at infrared wavelengths The long-term evolution of 7 FU Orionis-type stars at infrared wavelengths

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004padeu..14..119k&link_type=abstract

In: Proceedings of the British-Hungarian N+N Workshop for Young Researchers On Computer processing and use of satellite data in

Astronomy and Astrophysics

Astrophysics

Scientific paper

We investigate the brightness evolution of 7 FU Orionis systems in the 1-100mikrom wavelength range using data from the Infrared Space Observatory, 2MASS and MSX. The spectral energy distributions (SEDs) based on these data points are representative of the period 1996-2000. These SEDs were compared with earlier ones derived from the IRAS photometry and from ground-based observations carried out around 1983, in order to look for long-term evolution. Our data show that three objects have become fainter, while the others remained constant. We investigate the case of V1057 Cyg and discuss whether its observed fading could be understood in the framework of the existing models.

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