1996A&A...309...75M


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.21CEST15:42:35

1996A&A...309...75M - Astronomy and Astrophysics, volume 309, 75-80 (1996/5-1)

ROSAT observations of the radio galaxy B2 1122+39.

MASSAGLIA S., TRUSSONI E., CAUCINO S., FANTI R., FERETTI L., PARMA P. and BRINKMANN W.

Abstract (from CDS):

We report X-ray obervations of the radio galaxy B2 1122+39 (NGC 3665), associated with two radio jets, carried out by the Rosat PSPC and HRI instruments. We have detected extended X-ray emission, with a brightness profile consistent with a β hydrostatic model, that originates from a hot corona (kT≃0.5) that surrounds the galaxy. These X-ray data, combined with VLA radio observations, lead to conclude that the thermal pressure of the hot gas is larger than the jet equipartition pressure of relativistic electrons, implying that the assumptions made in the computation of the internal pressure may not be valid. The jet structure has been satisfactorily modeled assuming that the jets are confined by the X-ray emitting atmosphere. We also found that the amount of dark matter in the galactic corona is negligible.

Abstract Copyright:

Journal keyword(s): galaxies: intergalactic medium - galaxies: jets - radio continuum: galaxies - X-rays: galaxies - galaxies: individual: B2 1122+39

Nomenclature: Table 1: [MTC96] A (Nos A-E)

Simbad objects: 8

goto View the reference in ADS

Number of rows : 8

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 RX J112337.3+384130 X 11 23 37.3 +38 41 30           ~ 1 0
2 CSO 1172 QSO 11 23 40.2220004771 +38 51 29.215226472   18.20 17.93     ~ 26 0
3 NGC 3665 rG 11 24 43.630 +38 45 46.05 13.71 13.26 11.62     ~ 302 1
4 RX J112450.2+383330 X 11 24 50.2 +38 33 29           ~ 1 0
5 RX J112456.7+384630 X 11 24 56.7 -38 46 31           ~ 1 0
6 NGC 6107 BiC 16 17 20.143 +34 54 05.98   14.7       ~ 69 0
7 NGC 6109 LIN 16 17 40.539 +35 00 15.17   14.9       ~ 170 2
8 NGC 6137 BiC 16 23 03.087 +37 55 20.49   14.1       ~ 124 1

    Equat.    Gal    SGal    Ecl

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2020.10.21-15:42:35

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