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NEAR-IR PHOTOMETRIC AND OPTICAL SPECTROSCOPIC STUDY OF THE FU ORIONIS OBJECT V582 AURIGAE

  • OH, HYUNG-IL (Department of Astronomy and Atmospheric Sciences, Kyungpook National University) ;
  • YOONY, TAE SEOG (Department of Astronomy and Atmospheric Sciences, Kyungpook National University) ;
  • SUNG, HYUN-IL (Korea Astronomy and Space Science Institute)
  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30

Abstract

We carried out near-IR photometric and optical spectroscopic observations of V582 Aur, which is a FU Orionis type object, to investigate any periodic and/or aperiodic variations. We obtained light curves on the scale of a night and a year, in J, H and Ks bands with KASINICS (KASI Near Infrared Camera System) attached to the BOAO (Bohyun-san Optical Astronomy Observatory) 1.8-m reflector in Youngcheon, South Korea and examined photometric variations on the two time scales. So far we have not found any periodic brightness variations on the scale of a night. On the other hand, we have found that there seems to be a periodic brightness variation with a period of approximately 45 days. In addition, high-resolution optical spectroscopic observations of V582 Aur were performed from February 2013 to May 2014 with the high-resolution echelle spectrograph BOES attached to the BOAO 1.8-m reflector. We analyzed several spectral lines to understand the physical state of V582 Aur. The P Cyg profiles are clearly shown in the $H{\alpha}$ line and Na I D line.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

References

  1. Green, J. D., Robertson, P., & Baek, G., et al., 2013, Variability at the Edge: Optical Near/IR Rapid-cadence Monitoring of Newly Outbursting FU Orionis Object HBC 722, ApJ, 764, 22 https://doi.org/10.1088/0004-637X/764/1/22
  2. Herbig, G. H., 1977, Eruptive Phenomena in Early Stellar Evolution, ApJ, 217, 693 https://doi.org/10.1086/155615
  3. Herbig, G. H., Petrov, P. P., & Duemmler, R., 2003, High-Resolution Spectroscopy of FU Orionis Stars, ApJ, 595, 384 https://doi.org/10.1086/377194
  4. Kenyon, S. J., Kolotilov, E. A., Ibragimov, M. A., & Mattei, J. A., 2000, Flickering in FU Orionis, ApJ, 531, 1028
  5. Powell, S. L., Irwin, M., Bouvier, J., & Clarke, C. J., 2013, The Periodic Spectroscopic Variability of FU Orionis, MNRAS, 426, 3315
  6. Reipurth, B., & Aspin, C., 2010, FUors and Early Stellar Evolution, vaoa.conf, 19
  7. Samus, N., 2009, V582 Aurigae, CBET, 1896, 1
  8. Semkov, E. H., Peneva, S. P., & Dennefeld, M., 2011, The FUor Candidate V582 Aurigae: First Photometric and Spectroscopic Observations, BlgAJ, 15, 49
  9. Semkov, E. H., Peneva, S. P., Munari, U., Dennefeld, M., Mito, H., Dimitrov, D. P., Ibryamov, S., & Stoyanov, K. A., 2013, Photometric and Spectroscopic Variability of the FUor Star V582 Aurigae, A&A, 556, 60 https://doi.org/10.1051/0004-6361/201321732
  10. Siwak, M., Rucinski, S. M., & Matthews, J. M., et al., 2013, Photometric Variability in FU Ori and Z CMa as Observed by MOST, MNRAS, 432, 194 https://doi.org/10.1093/mnras/stt441

Cited by

  1. An UXor among FUors: Extinction-related Brightness Variations of the Young Eruptive Star V582 Aur vol.853, pp.1, 2018, https://doi.org/10.3847/1538-4357/aaa242