2001A&A...375..476M


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.12CET12:52:20

2001A&A...375..476M - Astronomy and Astrophysics, volume 375, 476-484 (2001/8-4)

Development of a two-sided relativistic jet in Cygnus X-3.

MARTI J., PAREDES J.M. and PERACAULA M.

Abstract (from CDS):

We present multi-epoch radio maps of the microquasar Cygnus X-3 obtained with the Very Large Array (VLA). The observations were carried out as a Target-of-Opportunity (ToO) project triggered by a series of strong (>5Jy) radio outbursts in September 2000. We find that Cygnus X-3 was well resolved and clearly elongated in the North-South direction at the VLA resolution in the weeks after the triggering events. In particular, the VLA map from our final epoch of observation perfectly shows the development of a two-sided radio jet extending over ∼0.05pc scales. We interpret both the proper motion and the brightness asymmetry between the jet components in the framework of special relativity effects. Assuming a distance of 10kpc, the true jet velocity that we derive is close to 0.5c with a large angle with the line of sight. The possible connection between the VLA bipolar jets and the elongated one-sided structures observed at milli-arcsecond angular scales is also discussed.

Abstract Copyright:

Journal keyword(s): stars: individual: Cyg X-3 - ISM: jets and outflows - X-rays: stars

Simbad objects: 6

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Number of rows : 6

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 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2064 3
2 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3627 1
3 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1672 1
4 AX J1748.0-2829 LXB 17 48 05.060 -28 28 25.80           ~ 167 0
5 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2237 0
6 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1746 2

    Equat.    Gal    SGal    Ecl

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2019.12.12-12:52:20

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