Zobrazeno 1 - 10
of 1 210
pro vyhledávání: '"Blinnikov, A."'
Publikováno v:
Astron. Lett., vol. 47, no. 4, pp. 204-213, Apr. 2021
The plasma opacity in stars depends mainly on the local state of matter (the density, temperature, and chemical composition at the point of interest), but in supernova ejecta it also depends on the expansion velocity gradient, because the Doppler eff
Externí odkaz:
http://arxiv.org/abs/2410.17176
Autor:
Sato, Masato, Tominaga, Nozomu, Blinnikov, Sergei I., Potashov, Marat Sh., Moriya, Takashi J., Hiramatsu, Daichi
Core-collapse supernovae (CCSNe) are the terminal explosions of massive stars. While most massive stars explode as iron-core-collapse supernovae (FeCCSNe), slightly less massive stars explode as electron-capture supernovae (ECSNe), shaping the low-ma
Externí odkaz:
http://arxiv.org/abs/2402.04611
Previous numerical simulations of double-peaked SNe IIb light curves have demonstrated that the radius and mass of the hydrogen-rich envelope of the progenitor star can significantly influence the brightness and timescale of the early-time light curv
Externí odkaz:
http://arxiv.org/abs/2310.16328
Autor:
Kuratov, S. E., Menshov, I. S., Igashov, S. Yu., Urvachev, E. M., Blinnikov, S. I., Shidlovski, D. S., Glazyrin, S. I.
The computational and theoretical analysis carried out in this article demonstrates the existence of a nontrivial mechanism for the compression of a submicron-sized gas bubble formed by a gas of classical ions and a gas of degenerate electrons. This
Externí odkaz:
http://arxiv.org/abs/2308.06697
Type Ib and Ic supernovae (SNe Ib/Ic) originate from hydrogen-deficient massive star progenitors, of which the exact properties are still much debated. Using the SN data in the literature, we investigate the optical $B-V$ color of SNe Ib/Ic at the $V
Externí odkaz:
http://arxiv.org/abs/2304.10670
Autor:
Bykov, Andrey, Postnov, Konstantin, Bondar, Alexander, Blinnikov, Serguey, Dolgov, Aleksander
A minor population of antistars in galaxies has been predicted by some of non-standard models of baryogenesis and nucleosynthesis in the early Universe, and their presence is not yet excluded by the currently available observations. Detection of an u
Externí odkaz:
http://arxiv.org/abs/2304.04623
A new model grid containing 228,016 synthetic red supergiant explosions (Type II supernovae) is introduced. Time evolution of spectral energy distributions from 1 A to 50,000 A (100 frequency bins in a log scale) is computed at each time step up to 5
Externí odkaz:
http://arxiv.org/abs/2303.01532
Autor:
Xiang, Danfeng, Wang, Xiaofeng, Zhang, Xinghan, Sai, Hanna, Zhang, Jujia, Brink, Thomas G., Filippenko, Alexei V., Mo, Jun, Zhang, Tianmeng, Chen, Zhihao, Dessart, Luc, Li, Zhitong, Yan, Shengyu, Blinnikov, Sergei I., Rui, Liming, Baron, E., DerKacy, J. M.
We present extensive optical/ultraviolet observations and modelling analysis for the nearby SN 1987A-like peculiar Type II supernova (SN) 2018hna. Both photometry and spectroscopy covered phases extending to $>$500 days after the explosion, making it
Externí odkaz:
http://arxiv.org/abs/2301.09953
Publikováno v:
Astronomy Letters, 2022, Vol. 48, No. 9, pp. 497-502
We present our calculations of the thermal neutrino radiation that accompanies the explosion of a minimum-mass neutron star. In this case, the neutrino luminosity is lower than the luminosity during a supernova explosion approximately by five orders
Externí odkaz:
http://arxiv.org/abs/2301.10003
Autor:
Ravi, Aravind P., Rho, Jeonghee, Park, Sangwook, Park, Seong Hyun, Yoon, Sung-Chul, Geballe, T. R., Vinko, Jozsef, Tinyanont, Samaporn, Bostroem, K. Azalee, Burke, Jamison, Hiramatsu, Daichi, Howell, D. Andrew, McCully, Curtis, Newsome, Megan, Gonzalez, Estefania Padilla, Pellegrino, Craig, Cartier, Regis, Pritchard, Tyler, Andersen, Morten, Blinnikov, Sergey, Dong, Yize, Blanchard, Peter, Kilpatrick, Charles D., Hoeflich, Peter, Valenti, Stefano, Filippenko, Alexei V., Suntzeff, Nicholas B., Seok, Ji Yeon, Konyves-Toth, R., Foley, Ryan J., Siebert, Matthew R., Jones, David O.
We present near-infrared (NIR) and optical observations of the Type Ic supernova (SN Ic) SN 2021krf obtained between days 13 and 259 at several ground-based telescopes. The NIR spectrum at day 68 exhibits a rising $K$-band continuum flux density long
Externí odkaz:
http://arxiv.org/abs/2211.00205