The Emission-Line Dusty Object IRAS 07080+0605, A Less-Evolved Example of the Red Rectangle
Miroshnichenko, A. S.; Manset, N.; Zharikov, S. V.; Grankin, K. N.; Zakhozhay, O. V.; Omarov, C. T.; Kuratova, A. K.; Khokhlov, S. A.; Usenko, I. A.; Kusakin, A. V.; Kokumbaeva, R. I.; Reva, I. V.; Bilinskyi, I. O.; Korcakova, D.
Kazakhstan, United States, Russia, Mexico, Ukraine, Japan, Czech Republic
Abstract
The all-sky survey conducted by the InfraRed Astronomical Satellite (IRAS) in the 1980's discovered many objects with infrared excesses whose nature has not been explored until recently. IRAS07080+0605 is one of those identified in the visual spectral range with an early-type star, which shows the B[e] phenomenon. The object is puzzling, because it exhibits one of the strongest infrared excesses associated with a star of one of the lowest surface temperatures (∼8500 K) among objects with the B[e] phenomenon, an apparent combination of spectral features of dwarfs and supergiants, and the absence of a surrounding optical nebula. Our photometric and spectroscopic study shows that the object's properties are similar to those of the famous Red Rectangle protoplanetary nebula. In this paper we describe our findings and hypotheses about the nature and evolutionary status of IRAS07080+0605.