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Infrared Counterpart of the Gravitational Lens 1938+66.6

James E. Rhoads·Sangeeta Malhotra·Tomislav Kundic
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Abstract

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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James E. Rhoads, Sangeeta Malhotra, Tomislav Kundic. 1996-01-30. Infrared Counterpart of the Gravitational Lens 1938+66.6. https://doi.org/10.1086/117812

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