BVRJK observations of Northern Hemisphere old novae

Details BVRJK observations of Northern Hemisphere old novae BVRJK observations of Northern Hemisphere old novae

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....108..639s&link_type=abstract

The Astronomical Journal, vol. 108, no. 2, p. 639-644

Astronomy and Astrophysics

Astronomy

43

Astronomical Photometry, Red Dwarf Stars, Stellar Color, Stellar Luminosity, Stellar Spectra, White Dwarf Stars, Accretion Disks, Stellar Magnitude

Scientific paper

BVR photometry has been accomplished for 65 objects in the Duerbeck atlas along with J photometry of 52 and K of 30 objects. The (B - V), (V - R), and (V - J) colors are compiled with those available in the literature to assess the color change of novae as a function of time since outburst. Using available reddening values results in a list of 42 (B - V), 28 (V - R), and 38 (V - J) dereddened colors for novae that are from 1 to 319 years past outburst. The results indicate all the colors cluster about zero, with no obvious transition to red values as would be expected for novae undergoing a hibernation scenario. This indicates the accretion disk is sustained for at least 200 years after outburst. It is also apparent that red novae with giant secondaries and/or unusual properties readily stand out from the normal novae in color.

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