2006IAUC.8710....2R

R. W. Russell, R. J. Rudy, and D. K. Lynch, The Aerospace Corporation; and C. E. Woodward, University of Minnesota, report 0.8- to 5.4-micron spectroscopy of these three novae on April 30 UT using SpeX on the Infrared Telescope Facility (IRTF). All three objects are similar Fe II-type CO novae, with very low excitation. They showed strong C I, NI, O I, and Fe II emission lines. V2575 Oph showed self-absorption in the He I lines at 1.0830 and 2.0581 microns, and the other two objects showed P-Cyg structure in the same lines. No CO emission was detected, and there was no discernable thermal emission from dust. E(B-V) values: V2576 Oph, 0.62; V2575 Oph, 1.42; V2362 Cyg, 0.59. Infrared magnitudes (± 0.1) for V2576 Oph: J = 9.3, H = 9.3, K(short) = 9.2. Infrared magnitudes for V2575 Oph: J = 9.8, H = 9.9, K(short) = 9.0. Infrared magnitudes for V2362 Cyg: J = 8.4, H = 8.5, K(short) = 8.2.