Infrared Counterpart of the Gravitational Lens 1938+66.6

Details Infrared Counterpart of the Gravitational Lens 1938+66.6 Infrared Counterpart of the Gravitational Lens 1938+66.6

1996-01-30

arxiv.org/abs/astro-ph/9601184v1

Astronomy and Astrophysics

Astrophysics

8 pages, one PostScript figure; uses AAS LaTeX macros. Accepted for publication in The Astronomical Journal

Scientific paper

10.1086/117812

We report the detection of a very red source coincident with the gravitational lens 1938+66.6 (Patnaik et al. 1992) in K' (2.12 micron), H (1.6 micron), J (1.25 micron), and Thuan-Gunn r (0.65 micron) bands. 1938+66.6 has previously been detected as a partial radio ring indicating lensing. We find K'=17.1 +- 0.1 and r = 23.9 +- 0.2, making it a very red source with (r-K')=6.8 +- 0.25. We also observed in Thuan-Gunn g band (0.49 micron) and found g>24.5 at the 90% confidence level. We interpret our observations as a reddened gravitational lens on the basis of its optical-IR color and positional coincidence with the radio source.

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