C.D.S. - SIMBAD4 rel 1.7 - 2020.11.29CET00:41:04

2020ApJ...898..158M - Astrophys. J., 898, 158-158 (2020/August-1)

Radio emission from ultra-stripped supernovae as diagnostics for properties of the remnant double neutron star binaries.


Abstract (from CDS):

An ultra-stripped supernova (SN) is an explosion of a helium or C+O star whose outer envelope has been stripped away by a companion neutron star. A double neutron star (DNS) binary is believed to be left after the explosion, which will emit the gravitational wave later at the coalescence. Recent detections of a few candidates for the ultra-stripped SN have constrained the properties of the explosion and the progenitor, but little information is given as to whether the remnant DNS binary will merge within the cosmic age. A large fraction of the material stripped away from the helium star through the binary interaction is expected to escape from the system and form circumstellar material (CSM). The CSM should be traced by radio emission induced by the collision with the SN ejecta. Based on the stellar evolution models previously developed, we calculate the expected radio luminosities from ultra-stripped SNe. We find that high radio luminosity at its maximum can be an indicator of small separation of a DNS binary leading to its merger within the cosmic age. Our results can be used to optimize the strategy for the radio follow-up observations such as observational epochs and frequencies.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Supernovae - Gravitational wave sources

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
1 SN 2005ek SN* 03 05 48.96 +36 46 10.6     17.5     SNIc: 53 1
2 SN 2010X SN* 04 48 27.90 +73 28 14.8           SNIc 63 1
3 SN 2016coi SN* 21 59 04.14 +18 11 10.5           SNIc 35 0
4 SN 2014ft SN* 23 33 27.95 +33 38 46.1           ~ 18 0

    Equat.    Gal    SGal    Ecl

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