2002ApJ...567...50B

Query : 2002ApJ...567...50B

2002ApJ...567...50B - Astrophys. J., 567, 50-57 (2002/March-1)

Spectral energy distributions of 3C 279 revisited: beppo SAX observations and variability models.

BALLO L., MARASCHI L., TAVECCHIO F., CELOTTI A., FOSSATI G., GHISELLINI G., PIAN E., RAITERI C.M., TAGLIAFERRI G., TREVES A., URRY C.M. and VILLATA M.

Abstract (from CDS):

We present the BeppoSAX observations of 3C 279 performed simultaneously during 1997 January 13-23 with γ-ray pointings with EGRET on board the Compton Gamma Ray Observatory and optical observations at the Torino Observatory (1997 January 11-18). Infrared Space Observatory data close to this epoch are also available. We compare the derived spectral energy distribution (SED) with those obtained at all other epochs with adequate multiwavelength coverage. Simple spectral models fitted to the multiepoch SEDs suggest that changes in intensity can be ascribed mainly to the variation of the bulk Lorentz factor of the plasma in the jet.

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Journal keyword(s): Galaxies: Quasars: General - Galaxies: Quasars: Individual: Alphanumeric: 3C 279 - Radiation Mechanisms: Nonthermal - X-Rays: Galaxies

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	3C 279	Bla	12 56 11.16657958	-05 47 21.5251510		18.01	17.75	15.87		~	3205	2
2	Z 225-7	BLL	16 53 52.21668403	+39 45 36.6088754	14.09	14.15	13.29	8.26		~	2304	2

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