Near-IR Photometry of Nova Del 2013

ATel #5317; Cass, A. C., Carlon, R. L., Corgan, D. T., Dykhoff, D. A., Gehrz, R. D. , and Shenoy, D. P. (Minnesota Institute for Astrophysics, Minneapolis, MN, USA)
on 23 Aug 2013; 20:53 UT
Credential Certification: Robert Gehrz (gehrz@astro.umn.edu)

Tweet

Subjects: Infra-Red, Nova We report Near-IR photometry of Nova Del 2013 taken with the 0.76-m infrared telescope at the University of Minnesota's O'Brien Observatory (Marine on St. Croix, Minnesota, USA). RIJHKLM photometry were obtained on August 21.17 and 23.13 UT using an AsSi bolometer. Vega (alpha Lyrae) was used as the standard star. Our photometry show: August 21.17 UT: R = 5.1 +/- 0.1, I = 4.6 +/- 0.1, J = 4.6 +/- 0.1, H = 4.1 +/- 0.1, K = 3.9 +/- 0.1, L = 2.7 +/- 0.2, M = +2.2 +/- 0.2. August 23.13 UT: R = 5.1 +/- 0.1, I = 4.9 +/- 0.1, J = 5.1 +/- 0.1, H = 4.0 +/- 0.1, K = 3.7 +/- 0.1, L = 3.1 +/- 0.15, M = 2.7 +/- 0.2. On this date the nova is in a free-free emission phase and has become optically thin to at least ~ 4.9 microns. These observations were made possible by a generous gift from Edward Glickman and technical support by A. Knutson and J. Marchetti.