SIMBAD references

1999AJ....117.1143O - Astron. J., 117, 1143-1150 (1999/March-0)

Hubble space telescope and VLA observations of two optical continuum knots in the jet of 3C 380.

O'DEA C.P., DE VRIES W., BIRETTA J.A. and BAUM S.A.

Abstract (from CDS):

We present Hubble Space Telescope Wide Field Planetary Camera 2 broadband red and linear ramp filter (isolating redshifted [O II] λ3727) observations and subarcsecond-resolution 15, 22, and 43 GHz VLA observations of the radio-loud quasar 3C 380. We confirm the report of de Vries et al. that there is good correspondence between the locations of two optical and radio knots/hot spots in the jet. We show that the optical knots are continuum rather than line emission. The radio-optical spectrum can be fitted either by a normal radio spectrum (α~-0.8) with a break somewhere in the infrared or by a steeper single power law (α~-1) (where Sν∝να). We suggest that the two knots are radiating optical synchrotron emission. This would make the knots in 3C 380 the most luminous optical knots/hot spots currently known.

Abstract Copyright:

Journal keyword(s): Galaxies: Active - Galaxies: Jets - Galaxies: Quasars: Individual: Alphanumeric: 3C 380

Nomenclature: Table 3: [ODB99] Knot N (Nos 1-2).

Simbad objects: 11

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