Bibcode
DOI
Gonzalez-Perez, J. N.; Kidger, M. R.; Valtaoja, E.; Terasranta, H.; Wehrle, A. E.; Unwin, S. C.; Giammona, W. J.; Zook, Z. C.
Referencia bibliográfica
The Astronomical Journal, v. 114, p. 1121.
Advertised on:
9
1997
Número de citas
8
Número de citas referidas
8
Descripción
We present one new radio identification and one confirmation of two
high-latitude gamma-ray sources detected by CGRO-EGRET, based on flux
density measurements at 1.3 mm (Caltech Submillimeter
Observatory2) and 1.3 cm (Metsähovi Research Station) of
objects in the EGRET error boxes. We identify EGRET sources 10744+5438
and J1239+044l with 87GB 073840.5+545138 and 87GB 123701.3+045944,
respectively, both 5-GHz radio sources from the GB6 catalog (Gregory
& Condon 1991, APJS, 75, 1011). The broad-band energy distributions
of these two objects suggest that they have steeper spectra below the
turnover frequency than is the case for most blazars in the Second EGRET
Catalog. In addition, they tend to have lower radio luminosities
relative to their gamma-ray luminosities than most of the EGRET blazars.
J1239+0441 has no previous identification with a source in another
waveband, while our identification of 10744+5438 is consistent with that
of Mukherjee et al. (1995, ApJ, 445, 189). We also report 1.3-mm flux
densities of five other gamma-ray blazars.