Abstract
Abstract V5588 Sagittarii (Nova Sagittarii 2011 No. 2) was one of the rare novae that undergo outbursts after the initial explosion, and was extreme in that it did so six times. We present 0.8–5.1 μm spectroscopy acquired during the second of these so-called secondary maxima, when the nova was still near its peak brightness and when differences among emission line profiles were most pronounced. Our spectrum supplements and enlarges the wavelength coverage of the extensive observational data set presented by Munari et al. We highlight the differences between the emission line profiles of H i, He i, and Fe ii and point out differences between the narrow and broad line components of the H i lines. We also include identifications for a few weak, previously unobserved Fe ii features in the midwave-infrared.
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