Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21349102h&link_type=abstract
American Astronomical Society, AAS Meeting #213, #491.02; Bulletin of the American Astronomical Society, Vol. 41, p.467
Astronomy and Astrophysics
Astrophysics
Scientific paper
Many facets of astrophysics are captured in classical nova (CN) eruptions, making them unique laboratories in which we may observe several poorly understood astrophysical processes including mass transfer, thermonuclear runaway, optically thick winds, common envelope evolution, molecule and grain formation, coronal line emission, and gas cooling by fine structure lines. Many of these phenomena evolve in real time. Therefore, a better understanding of CNe has far-reaching applications and underpins several related and important areas of astrophysics. Here we present preliminary results of our Cycle 5 Spitzer IRS study of ``mature'' novae (several 100s of days post-outburst), complemented by extensive multi-wavelength data from other facilities. We present data on V2361 Cyg, V2467 Cyg and V378 Ser. In particular, V2361 Cyg displays a strong dust continuum with possible Aromatic Emission Features (AEF) superimposed, the first dusty CN observed to do so since 1993 and the first to be observed spectroscopically in the far IR. This object presents us with an outstanding opportunity to investigate how the dust is processed by the UV radiation from the stellar remnant.
Support for this work was provided in part by NASA through Spitzer contracts issued by JPL/Caltech to the University of Minnesota.
Evans Aaron
Gehrz Robert D.
Helton Lorren Andrew
Lynch D. L.
Rudy Richard
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