2007ApJ...666...79L


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.19CEST17:45:49

2007ApJ...666...79L - Astrophys. J., 666, 79-85 (2007/September-1)

A radio nebula surrounding the ultraluminous X-ray source in NGC 5408.

LANG C.C., KAARET P., CORBEL S. and MERCER A.

Abstract (from CDS):

New radio observations of the counterpart of the ultraluminous X-ray source in NGC 5408 show for the first time that the radio emission is resolved with an angular size of 1.5"-2.0". This corresponds to a physical size of 35-46 pc, and rules out interpretation of the radio emission as beamed emission from a relativistic jet. In addition, the radio spectral index of the counterpart is well determined from three frequencies and found to be α=-0.8±0.2. The radio emission is likely to be optically thin synchrotron emission from a nebula surrounding the X-ray source. The radio luminosity of the counterpart is 3.8x1034 erg/s and the minimum energy required to power the nebula is ∼1x1049 erg. These values are 2 orders of magnitude larger than in any Galactic nebula powered by an accreting compact object.

Abstract Copyright:

Journal keyword(s): Black Hole Physics - Galaxies: Individual: NGC Number: NGC 5408 - Galaxies: Stellar Content - X-Rays: Galaxies

CDS comments: Calibrators J1353-441, J1349-439 and J1934-638 not identified

Simbad objects: 9

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Number of rows : 9

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 X LMC X-3 HXB 05 38 56.6325045489 -64 05 03.321118015   17 17.2     B2.5Ve 632 0
2 UGC 4305 IG 08 19 04.9878269182 +70 43 13.025604473 12.06 11.72 11.39 11.11   ~ 700 2
3 [SST2011] J081929.00+704219.3 ULX 08 19 28.99 +70 42 19.4           ~ 158 2
4 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3771 1
5 [FK2005] 25 ULX 14 03 19.63 -41 22 58.7           ~ 197 0
6 NGC 5408 EmG 14 03 20.907 -41 22 39.75   12.59   11.96 12.2 ~ 319 3
7 2XMM J180112.4-254436 LXB 18 01 12.40 -25 44 36.1           ~ 363 1
8 SS 433 HXB 19 11 49.5645897701 +04 58 57.824087535   16.3 13.0     A7Ib: 1941 3
9 SNR G039.7-02.0 SNR 19 12 20 +04 55.0           ~ 315 1

    Equat.    Gal    SGal    Ecl

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2020.10.19-17:45:49

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