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Evolution of the Type IIb SN 2011fu

  • S. B. Pandey (a1), Brajesh Kumar (a1) (a2), D. K. Sahu (a3), J. Vinko (a4), A. S. Moskvitin (a5), G. C. Anupama (a3), V. K. Bhatt (a1), A. Ordasi (a6), A. Nagy (a4), V. V. Sokolov (a5), T. N. Sokolova (a5), V. N. Komarova (a5), Brijesh Kumar (a1), Subhash Bose (a1), Rupak Roy (a1) and Ram Sagar (a1)...

Abstract

The UBVRI photometric follow-up of SN 2011fu has been initiated a few days after the explosion, shows a rise followed by steep decay in all bands and shares properties very similar to that seen in case of SN 1993J, with a possible detection of the adiabatic cooling phase at very early epochs. The spectral modeling performed with SYNOW suggests that the early-phase line velocities for H and Fe ii features were ~ 16000 km s−1 and ~ 14000 km s−1, respectively. Studies of rare class of type IIb SNe are important to understand the evolution of the possible progenitors of core-collapse SNe in more details.

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References

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Anderson, J. P. & James, P. A. 2009, MNRAS, 399, 559
Arnett, W. D. & Fu, A. 1989, ApJ, 340, 396
Heger, A., Fryer, C. L., Woosley, S. E., Langer, N., & Hartmann, D. H. 2003, ApJ, 591, 288
Kumar, B., Pandey, S. B., Sahu, D. K., Vinko, J., Moskvitin, A. S., Anupama, G. C., Bhatt, V. K., Ordasi, A., Nagy, A., Sokolov, V. V., Sokolova, T. N., Komarova, V. N., Kumar, B., Bose, S., Roy, R., & Sagar, R. 2013, Accepted to MNRAS, arXiv:1301:6538
Smartt, S. J. 2009, ARAA, 47, 63
Woosley, S. E., Pinto, P. A., Martin, P. G., & Weaver, T. A. 1987, ApJ, 318, 664
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