Visible and Infrared Spectrophotometry of V5114 Sagittarii

Details Visible and Infrared Spectrophotometry of V5114 Sagittarii Visible and Infrared Spectrophotometry of V5114 Sagittarii

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.1902v&link_type=abstract

American Astronomical Society Meeting 205, #19.02; Bulletin of the American Astronomical Society, Vol. 36, p.1371

Astronomy and Astrophysics

Astronomy

Scientific paper

We present 0.4 - 2.5 micron spectrophotometry of the fast Nova Sagittarii 2004 (V5114 Sgr) observed on June 22, 2004 UT approximately 3 months after initial discovery. The data was taken on the 3-meter Shane Telescope at Lick Observatory using The Aerospace Corporation's Enhanced Near-Infrared and Visible Imaging Spectrograph. At this time, the nova was into its coronal phase exhibiting a broad range of excitation including a number of coronal lines. Lines present included: Balmer, Paschen, and Bracket lines with He I at 1.0830 microns being the strongest line in the whole spectrum, fluorescently excited O I lines, and coronal lines such as [S VIII] at 0.9911 microns, [Si IX] at 1.2517 microns, and [Si VI] at 1.9641 microns. The coronal line [S III] at 0.9069 and 0.9532 microns was present which is not typically seen in a fast nova. The line FWHM was approximately 2200 km/s and exhibited a unique combination of flat, double-peaked profiles for the lower excited lines and more round line profiles for the coronal lines.
The authors acknowledge the assistance of the Aerospace Corporation's Independent Research and Development program.

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