Abstract
Superbursts of neutron stars are rare but powerful events explained by the explosive burning of carbon in the deep layers of the outer envelope of the star. In this paper we perform a simulation of superbursts and propose a simple method for describing the neutrino stage of their cooling, as well as a method for describing the evolution of the burst energy on a scale of several months. We note a universal relation for the temperature distribution in the burnt layer at its neutrino cooling stage, as well as the unification of bolometric light curves and neutrino heat loss rates for deep and powerful bursts. We point out the possibility of long-term retention of the burst energy in the star’s envelope. The results can be useful for interpretation of superburst observations.
REFERENCES
D. Altamirano et al., Mon. Not. R. Astron. Soc. 426, 927 (2012).
M. Colpi, U. Geppert, D. Page, and A. Possenti, Astrophys. J. 548, L178 (2001).
A. Cumming and J. Macbeth, Astrophys. J. 603, L37 (2004).
A. Cumming, J. Macbeth, J. J. M. in ’t Zand, and D. Page, Astrophys. J. 646, 429 (2006).
G. K. Galloway and L. Keek, Timing Neutron Stars: Pulsations, Oscillations, and Explosions, Ed. by T. M. Belloni, M. Mendez, and C. Zang, Vol. 461 of Astrophysics Space Sci. Library (Springer, Berlin, 2021), p. 209.
P. Haensel, A. Y. Potekhin, and D. G. Yakovlev, Neutron Stars. 1. Equation of State and Structure (Springer, New York, 2007).
V. M. Kaspi and A. M. Beloborodov, Ann. Rev. Astron. Astrophys. 55, 261 (2017).
L. Keek and A. Heger, Astrophys. J. 743, 189 (2011).
L. Keek, J. J. M. in ’t Zand, E. Kuulkers, A. Cumming, E. F. Brown, and M. Suzuki, Astron. Astrophys. 479, 177 (2008).
L. Keek, A. Heger, and J. J. M. in ’t Zand, Astrophys. J. 752, 150 (2012).
L. Keek, A. Cumming, Z. Wolf, D. R. Ballantyne, V. F. Suleimanov, E. Kuulkers, and T. E. Strohmayer, Mon. Not. R. Astron. Soc. 454, 3559 (2015).
D. Page, J. Homan, M. Nava-Callejas, Y. Cavecchi, M. V. Beznogov, N. Degenaar, R. Wijnands, and A. S. Parikh, Astrophys. J. 933, 216 (2022).
J. M. Pearson, N. Chamel, A. Y. Potekhin, A. F. Fantina, C. Ducoin, A. K. Dutta, and S. Goriely, Mon. Not. R. Astron. Soc. 481, 2994 (2018).
A. Y. Potekhin and G. Chabrier, Astron. Astrophys. 538, A115 (2012).
A. Y. Potekhin and G. Chabrier, Astron. Astrophys. 609, A74 (2018).
S. Shapiro and S. Teukolsky, Black Holes, White Dwarfs, and Neutron Stars: The Physics of Compact Objects (Wiley, New York, 1983).
D. G. Yakovlev and C. J. Pethick, Astron. Astrophys. 42, 169 (2004).
D. G. Yakovlev, A. D. Kaminker, A. Y. Potekhin, and P. Haensel, Mon. Not. R. Astron. Soc. 500, 4491 (2021).
J. J. M. in ’t Zand, in 7 Years of MAXI: Monitoring X-ray Transients, Ed. by M. Serino, M. Shidatsu, W. Iwakiri, and T. Mihara (RIKEN, Saitama, 2017), p. 121.
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The work was supported by the Russian Science Foundation (grant no. 19-12-00133-P).
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Kaminker, A.D., Potekhin, A.Y. & Yakovlev, D.G. Neutrino Emission of Neutron-Star Superbursts. Astron. Lett. 49, 824–832 (2023). https://doi.org/10.1134/S1063773723120034
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DOI: https://doi.org/10.1134/S1063773723120034