Observations of Nova Cygni 1992 with a long-baseline optical interferometer

Details Observations of Nova Cygni 1992 with a long-baseline optical interferometer Observations of Nova Cygni 1992 with a long-baseline optical interferometer

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....106.1118q&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 106, no. 3, p. 1118-1122.

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Astronomical Interferometry, Novae, Astronomical Models, Computational Astrophysics, Light Curve, Photosphere, Stellar Atmospheres, Stellar Envelopes

Scientific paper

Nova Cygni 1992 was observed with the MkIII optical interferometer on several nights in 1992 February; usable data were obtained on February 28 and 29. This marks the first time that a nova has been resolved about 10 days after maximum light. A uniform disk model fitted to the data in three wide-band (25 nm) filters gives a diameter of 3.8 mas. The uniform disk diameter in a 10-nm bandpass centered on the H-alpha line was 5.1 mas. From this number, and adopting an expansion velocity of about 1100 km/s, the distance to the nova is estimated to be about 2.5 kpc.

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