Infrared counterpart of the gravitational lens 1938+66.6

James E. Rhoads, Sangeeta Malhotra, Tomislav Kundić

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7 Scopus citations


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 μm), H (1.6 μm), J (1.25 μm), and Thuan-Gunn r (0.65 μm) 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 μm) 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.

Original languageEnglish (US)
Pages (from-to)642-644
Number of pages3
JournalAstronomical Journal
Issue number2
StatePublished - Feb 1996

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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