2007IAUC.8849....2L

D. K. Lynch, R. J. Rudy, R. W. Russell, S. Mazuk, and R. L. Pearson, The Aerospace Corporation; R. C. Puetter, Center for Astrophysics and Space Science, University of California at San Diego; C. E. Woodward, University of Minnesota; and R. B. Perry, Langley Research Center, NASA, report 0.4- to 2.5-micron spectroscopy of this nova (cf. IAUC 8697, 8698, 8710, 8731, 8785, 8788) using the Lick 3-m telescope (+ VNIRIS) on May 7 UT, as well as 0.8- to 5.5-micron spectroscopy using the Infrared Telescope Facility 3-m telescope (+ SpeX) on June 1. The nova is well into its nebular phase with lines such as [O II], [O III], [N II] dominating the optical spectrum. Emission lines of neutral metals like O I have disappeared. Weak coronal lines of [S VIII], [Si VI], and probably [Si VII] are also present, along with moderate He II emission. Line profiles are flat-topped or perhaps slightly double- peaked and have FWHM of about 2000 km/s. Thermal emission from dust that increases to longer wavelengths continues to dominate the infrared luminosity.