L-Band Measurement of Nova Del 2013 Consistent with Presence of Dust
ATel #5434; A. C. Cass, R. L. Carlon, D. T. Corgan, D. A. Dykhoff, R. D. Gehrz, R. D. and D. P. Shenoy (Minnesota Institute for Astrophysics, Minneapolis, MN, USA)
on 30 Sep 2013; 18:28 UT
Credential Certification: Robert Gehrz (gehrz@astro.umn.edu)
An L-band measurement of Nova Del 2013 on 29.17 September 2013 UT using an As:Si bolometer mounted on the 0.76-m infrared telescope of the University of Minnesota's O'Brien Observatory (Marine on St. Croix, Minnesota, USA) yielded a magnitude of L = +2.6 +/- 0.3. Vega (alpha Lyrae) was used as the standard star. This flux level is consistent with a small amount of dust having formed recently as reported in ATEL 5431. A comparison of the L magnitudes reported in ATELs 5419 and 5431 suggests that the onset of the dust formation was after September 25.18. Our observations were made possible by a generous gift from Edward Glickman and technical support by A. Knutson and J. Marchetti.
