2001ApJ...547..714L

Query : 2001ApJ...547..714L

2001ApJ...547..714L - Astrophys. J., 547, 714-721 (2001/February-1)

VLBI space observatory programme observation of the quasar PKS 2215+020: a new laboratory for core-jet physics at z=3.572.

LOBANOV A.P., GURVITS L.I., FREY S., SCHILIZZI R.T., KAWAGUCHI N. and PAULINY-TOTH I.I.K.

Abstract (from CDS):

We report results of a VLBI Space Observatory Programme (VSOP) observation of a high-redshift quasar, PKS 2215+020 (z=3.57). The ∼1 mas resolution image of the quasar reveals a prominent ``core-jet'' structure on linear scales from 5 h–1 to 300 h–1 pc (H0=100 h km.s–1.Mpc–1). The brightness temperatures and sizes of bright features identified in the jet are consistent with emission from relativistic shocks dominated by adiabatic energy losses. The jet is powered by a central black hole with estimated mass of ∼4x109 M☉. Comparisons with VLA and ROSAT observations indicate the possible presence of an extended radio/X-ray halo surrounding 2215+020.

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Journal keyword(s): Galaxies: Quasars: Individual: Alphanumeric: PKS 2215+020 - Radio Continuum: Galaxies - Techniques: Interferometric

Nomenclature: Table 3, Fig.3: [LGF2001] PKS 2215+020 AN (Nos C, J1-J7).

Simbad objects: 2

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Number of rows : 2
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 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
2 QSO B2215+020 Bla 22 17 48.23793476 +02 20 10.7118477   21.840 20.420 20.140   ~ 67 1

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