Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97.1176s&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 97, April 1989, p. 1176-1183.
Astronomy and Astrophysics
Astronomy
4
Dwarf Novae, Stellar Orbits, Astronomical Photometry, Cataclysmic Variables, H Beta Line, H Gamma Line, Periodic Variations
Scientific paper
Time-resolved optical spectroscopy of the dwarf nova AF Cam for 4.5 hr during a decline from outburst reveals that the orbital period is relatively long (5-6 hr). CCD photometry at quiescence also supports this finding. This rules out the previously observed 67-76 min modulations (evident in IR photometric measurements at quiescence and optical photometry at outburst) as orbital in nature.
Howell Steve B.
Szkody Paula
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