The BL Lacertae object 1E 1415.6 + 2557 - Host galaxy, possible optical jet, and environment

Details The BL Lacertae object 1E 1415.6 + 2557 - Host galaxy, possible optical jet, and environment The BL Lacertae object 1E 1415.6 + 2557 - Host galaxy, possible optical jet, and environment

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...401l..65r&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 401, no. 2, p. L65-L68.

Astronomy and Astrophysics

Astrophysics

12

Bl Lacertae Objects, Disk Galaxies, Jet Flow, Spiral Galaxies, Charge Coupled Devices, Luminosity, Red Shift, Very Large Array (Vla)

Scientific paper

New optical CCD imagery of 1E 1415.6 + 2557, and an image-modeling analysis of the observed host galaxy are presented. It is concluded that the host galaxy of 1E 1415.6 + 2557 is most likely a luminous elliptical galaxy. Careful subtraction of the light from the BL Lac object nucleus and a model of the host galaxy reveals a jetlike feature, extending about 3 arcsec from the nucleus of the object. This feature's striking morphology strongly suggests it is an optical jet emanating from the BL Lac object's nucleus. If confirmed as such, this would be only the second optical jet discovered in a BL Lac object. The immediate environs of the object are also studied, and no evidence that it is in a cluster of galaxies is found.

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