2002A&A...396..615M


Query : 2002A&A...396..615M

2002A&A...396..615M - Astronomy and Astrophysics, volume 396, 615-621 (2002/12-3)

Rapidly evolving circularly polarized emission during the 1994 outburst of GRO J1655-40.

MACQUART J.-P., WU K., SAULT R.J. and HANNIKAINEN D.C.

Abstract (from CDS):

We report the detection of circular polarization during the 1994 outburst of the Galactic microquasar GRO J1655-40. The circular polarization is clearly detected at 1.4 and 2.4GHz, but not at 4.8 and 8.4GHz, where its magnitude never exceeds 5 mJy. Both the sign and magnitude of the circular polarization evolve during the outburst. The time dependence and magnitude of the polarized emission can be qualitatively explained by a model based on synchrotron emission from the outbursts, but is most consistent with circular polarization arising from propagation effects through the relativistic plasma surrounding the object.

Abstract Copyright:

Journal keyword(s): black hole physics - galaxies: active - galaxies: jets - polarization - radio continuum: galaxies - X-rays: individual: GRO J1655-40

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 - 2023
#notes
1 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4359 3
2 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 5713 1
3 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 2981 2
4 QSO B1519-273 BLL 15 22 37.67599511 -27 30 10.7855131   18.72 18.5 17.42   ~ 285 1
5 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1851 1
6 ICRF J174425.4-514443 AGN 17 44 25.45488279 -51 44 43.7403710     20.2     ~ 90 1
7 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4217 3
8 SS 433 HXB 19 11 49.5647697480 +04 58 57.827127648   16.3 13.0     A7Ib: 2088 4
9 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2559 0
10 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1185 1

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2023.09.26-13:28:04

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