2019ApJ...877...79C


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.16CEST20:38:30

2019ApJ...877...79C - Astrophys. J., 877, 79-79 (2019/June-1)

Type Ib supernova Master OT J120451.50+265946.6 radio-emitting shock with inhomogeneities crossing through a dense shell.

CHANDRA P., NAYANA A.J., BJORNSSON C.-I., TADDIA F., LUNDQVIST P., RAY A.K. and SHAPPEE B.J.

Abstract (from CDS):

We present radio observations of Type Ib supernova (SN) Master OT J120451.50+265946.6. Our low-frequency Giant Metrewave Radio Telescope (GMRT) data, taken when the SN was in the optically thick phase for observed frequencies, reveal inhomogeneities in the structure of the radio-emitting region. The high-frequency Karl G. Jansky Very Large Array data indicate that the shock is crossing through a dense shell between ∼47 and ∼87 days. The data >=100 days onward are reasonably well fit with the inhomogeneous synchrotron self-absorption model. Our model predicts that the inhomogeneities should smooth out at late times. Low-frequency GMRT observations at late epochs will test this prediction. Our findings suggest the importance of obtaining well-sampled wide-band radio data in order to understand the intricate nature of the radio emission from young supernovae.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): circumstellar matter - radiation mechanisms: non-thermal - radio continuum: general - supernovae: general - supernovae: individual: Master OT J120451.50+265946.6

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 ICRF J054236.1+495107 Sy1 05 42 36.13789843 +49 51 07.2337251   18.45 17.80 17.210   ~ 1314 1
2 SN 2005bf SN* 10 23 56.99 -03 11 29.3     18.0     SNIb 173 1
3 SN 2003L SN* 11 03 12.33 +11 04 38.3     16.9     SNIc 66 1
4 CTD 74 QSO 11 25 53.71192285 +26 10 19.9786840   18.62 18.51 18.39   ~ 128 1
5 4C 31.38 Sy2 11 56 18.7446774080 +31 28 04.674314160   19.33 18.96     ~ 127 1
6 NVSS J120428+270343 Rad 12 04 29.00 +27 03 45.0           ~ 1 0
7 MASTER OT J120451.50+265946.6 SN* 12 04 51.50 +26 59 46.6           SNIb 12 0
8 NGC 4080 GiG 12 04 51.804 +26 59 33.43   14.0       ~ 79 0
9 QSO B1225+368 QSO 12 27 58.7255449 +36 35 11.826886   21.5 21.5     ~ 121 0
10 SN 1994I SN* 13 29 54.072 +47 11 30.50     12.9     SNIc 584 1
11 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825107   17.51 17.25     ~ 3866 2
12 SN 2001em SN* 21 42 23.6093 +12 29 50.300     18.6     SNIc: 70 1
13 SN 2014C SN* 22 37 05.60 +34 24 31.9           SNIb 70 1

    Equat.    Gal    SGal    Ecl

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2021.05.16-20:38:30

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