Other
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.4415v&link_type=abstract
American Astronomical Society Meeting 203, #44.15; Bulletin of the American Astronomical Society, Vol. 35, p.1276
Other
Scientific paper
We present spectrophotometry spanning the optical to the thermal infrared of Nova Oph 2003 (V2573 Oph) from two different epochs shortly after initial discovery. The first measurement was taken 9 days after outburst with simultaneous wavelength coverage between 0.5 to 2.5 microns. At this time, the nova was in early decline and exhibited first overtone emission from carbon monoxide, which is seldom seen in novae. The spectrum at that time was very similar to V705 Cas (Evans et al. 1996, MNRAS, 282, 1049) and V2274 Cyg (Rudy et al. 2003, ApJ, 596), two other novae with CO emission. It showed lines of C I, N I, O I as well as emission features of H I, He I, Na I, and Fe II. The second measurement was taken 35 days after initial outburst with wavelength coverage between 3.0 and 13.0 microns. The spectrum was well fit by a 1000 K grey body. The discontinuity between the flux levels of the two data sets indicates a substantial increase in the infrared emission by the later epoch, probably due to the formation of dust. There was no evidence of emission from the CO fundamental or any atomic or ionic spectral features.
The authors acknowledge the assistance of the Aerospace Corporation's Independent Research and Development program and the US Air Force Space and Missile Systems Center through the Mission Oriented Investigation and Experimentation program, under contract F4701-00-C-0009.
Hammel Heidi Beth
Lynch David K.
Mazuk Stephan
Perry Raleigh B.
Puetter Richard C.
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