|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
19 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
A Search for Radio Emission from Type Ia Supernovae | | Nino Panagia
; Schuyler D. Van Dyk
; Kurt W. Weiler
; Richard A. Sramek
; Christopher J. Stockdale
; Kimberly P. Murata
; | | Date: |
30 Mar 2006 | | Abstract: | We present and discuss the radio observations of 27 Type Ia supernovae (SNe Ia) observed over two decades with the Very Large Array. No SN Ia has been detected so far in the radio, implying a very low density for any possible circumstellar material established by the progenitor, or progenitor system, before explosion. We derive 2-sigma upper limits to a steady mass-loss rate for individual SN systems as low as ~3 X 10^{-8} Msun yr^{-1}, discriminating strongly against white dwarf accretion via a stellar wind from a massive binary companion in the symbiotic star, an example of the ``single degenerate’’ scenario. However, a white dwarf accreting from a relatively low mass companion via a sufficiently high efficiency (>60-80%), Roche lobe overflow is still consistent with our limits. The ``double degenerate’’ merger scenario also cannot be excluded. | | Source: | arXiv, astro-ph/0603808 | | 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 claudebot
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER