2011A&A...535L..10M

Query : 2011A&A...535L..10M

2011A&A...535L..10M - Astronomy and Astrophysics, volume 535L10-10 (2011/11-1)

VLBI observations of SN 2011dh: imaging of the youngest radio supernova.

MARTI-VIDAL I., TUDOSE V., PARAGI Z., YANG J., MARCAIDE J.M., GUIRADO J.C., ROS E., ALBERDI A., PEREZ-TORRES M.A., ARGO M.K., VAN DER HORST A.J., GARRETT M.A., STOCKDALE C.J. and WEILER K.W.

Abstract (from CDS):

We report on the VLBI detection of supernova SN2011dh at 22GHz using a subset of the EVN array. The observations took place 14 days after the discovery of the supernova, thus resulting in a VLBI image of the youngest radio-loud supernova ever. We provide revised coordinates for the supernova with milli-arcsecond precision, linked to the ICRF. The recovered flux density is a factor ∼2 below the EVLA flux density reported by other authors at the same frequency and epoch of our observations. This discrepancy could be due to extended emission detected with the EVLA or to calibration problems in the VLBI and/or EVLA observations.

Abstract Copyright: ∼

Journal keyword(s): ISM: supernova remnants - radio continuum: general - supernovae: general - supernovae: individual: SN2011dh - radiation mechanisms: non-thermal

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SN 2009kr SN* 05 12 03.30 -15 41 52.2           SNII 93 1
2 SN 1993J SN* 09 55 24.77476 +69 01 13.7026   10.8 12.0     SNIIb 1507 1
3 Ton 599 Bla 11 59 31.83391383 +29 14 43.8268224   14.80 14.41 17.652 13.39 ~ 989 1
4 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
5 SN 2011dh SN* 13 30 05.10555 +47 10 10.9227           SNIIb 445 1
6 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
7 7C 133039.60+473739.00 Bla 13 32 45.24642464 +47 22 22.6677558   18.34 17.94 18.57   ~ 147 1
8 QSO B1333+459 Bla 13 35 21.9623576640 +45 42 38.232772128   18.30 18.22 17.67   ~ 107 1
9 3C 345 Bla 16 42 58.80997043 +39 48 36.9939552   16.81 16.59 16.84   ~ 1808 3
10 SN 2001dh SN* 20 17 24.16 -38 40 37.4     15.5     SNII 15 1

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