|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
19 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
The Radio Luminosity-Risetime Function of Core-Collapse Supernovae | | Michael F. Bietenholz
; N. Bartel
; M. Argo
; R. Dua
; S. Ryder
; A. Soderberg
; | | Date: |
23 Nov 2020 | | Abstract: | We assemble a large set of 2-10 GHz radio flux density measurements and upper
limits of 294 different supernovae (SNe), from the literature and our own and
archival data. Only 31% of the SNe were detected. We characterize the SN
lightcurves near the peak using a two-parameter model, with $t_{
m pk}$ being
the time to rise to a peak and $L_{
m pk}$ the spectral luminosity at that
peak. Over all SNe in our sample at $D<100$ Mpc, we find that $t_{
m pk} =
10^{1.7pm0.9}$ d, and that $L_{
m pk} = 10^{25.5pm1.6}$ erg s$^{-1}$
Hz$^{-1}$, and therefore that generally, 50% of SNe will have $L_{
m pk} <
10^{25.5}$ erg s$^{-1}$ Hz$^{-1}$. These $L_{
m pk}$ values are ~30 times
lower than those for only detected SNe. Types I b/c and II (excluding IIn’s)
have similar mean values of $L_{
m pk}$ but the former have a wider range,
whereas Type IIn SNe have ~10 times higher values with $L_{
m pk} =
10^{26.5pm1.1}$ erg s$^{-1}$ Hz$^{-1}$. As for $t_{
m pk}$, Type I b/c have
$t_{
m pk}$ of only $10^{1.1pm0.5}$ d while Type II have $t_{
m pk} =
10^{1.6pm1.0}$ and Type IIn the longest timescales with $t_{
m pk} =
10^{3.1pm0.7}$ d. We also estimate the distribution of progenitor mass-loss
rates, $dot M$, and find the mean and standard deviation of log$_{10}(dot
M/$Msol) yr$^{-1}$ are $-5.4pm1.2$ (assuming $v_{
m wind}=1000$ km s$^{-1}$)
for Type I~b/c SNe, and $-6.9pm1.4$ (assuming $v_{
m wind} = 10$ km s$^{-1}$
for Type II SNe excluding Type IIn. | | Source: | arXiv, 2011.11737 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER