An UXor among FUors: extinction-related brightness variations of the young eruptive star V582 Aur
The early evolution of Sun-like stars may be interspersed by energetic FU Orionis (FUor) type accretion outbursts. We analysed eight years of photometric and spectroscopic variability of V582 Aur, a bona fide FUor, in outburst. While the accretion rate derived from near-infrared measurements was con...
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| Veröffentlicht in: | Proceedings of the International Astronomical Union 2018-08, Vol.14 (S345), p.390-392 |
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| container_issue | S345 |
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| container_title | Proceedings of the International Astronomical Union |
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| creator | Ábrahám, P. Kóspál, Á. Kun, M. Fehér, O. Zsidi, G. Acosta-Pulido, J. A. |
| description | The early evolution of Sun-like stars may be interspersed by energetic FU Orionis (FUor) type accretion outbursts. We analysed eight years of photometric and spectroscopic variability of V582 Aur, a bona fide FUor, in outburst. While the accretion rate derived from near-infrared measurements was constant, radical brightness changes occurred due to dust clumps crossing the line of sight. The brightness minima resemble the variability patterns of the UXor phenomenon. Orbiting density enhancements or short-lived clumps moving in and out of the line-of-sight may explain these observations. Our message is that during FUor outbursts the inner disk is a dynamically active place, affecting the initial conditions for planet formation. |
| doi_str_mv | 10.1017/S1743921319003041 |
| format | Article |
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| subjects | Astronomy Brightness Clumps Contributed Papers Deposition Initial conditions Outbursts Photometry Planet formation Stellar evolution Variability |
| title | An UXor among FUors: extinction-related brightness variations of the young eruptive star V582 Aur |
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