An analytical density profile of dense circumstellar medium in Type II supernovae
An analytical density profile of dense circumstellar medium in Type II supernovae
复制标题
II型超新星中致密星周介质的解析密度剖面
DOI:
10.1093/pasj/psab063
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发表时间:
2021
影响因子:
2.3
通讯作者:
Shigeyama Toshikazu
中科院分区:
文献类型:
--
作者:
Tsuna Daichi;Takei Yuki;Kuriyama Naoto;Shigeyama Toshikazu
Observations of Type II supernovae imply that a large fraction of their progenitors experience enhanced mass loss years to decades before core collapse, creating a dense circumstellar medium (CSM). Assuming that the CSM is produced by a single mass eruption event, we analytically model its density profile. We find that a double power-law profile, where the inner (outer) power-law index has a characteristic value of −1.5 (−10 to −12), gives a good fit to the CSM profile obtained using radiation hydrodynamical simulations. With our profile the CSM is well described by just two parameters, the transition radiusr*and density atr=r*(alternativelyr*and the total CSM mass). We encourage future studies to include this profile, if possible, when modelling emission from interaction-powered transients.
影响因子:
6.5
作者:
Naoto Kuriyama;T. Shigeyama
通讯作者:
Naoto Kuriyama;T. Shigeyama
DOI:
10.3847/1538-4357/aba0ba
发表时间:
2020-06
期刊:
The Astrophysical Journal
影响因子:
--
作者:
A. Suzuki;T. Moriya;T. Takiwaki
通讯作者:
A. Suzuki;T. Moriya;T. Takiwaki
DOI:
--
发表时间:
2010
期刊:
--
影响因子:
--
作者:
N. Smith;Antonius A. Miller;Wenxiong Li;A. Filippenko;J. Silverman;A. Howard;G. Marcy;J. Bloom;P. Nugent;A. Ghez;Jessica R. Lu;S. Yelda;R. Bernstein;J. E. Colucci
通讯作者:
J. E. Colucci