Two different periods present in the binary nucleus of the planetary nebula LoTr5

Details Two different periods present in the binary nucleus of the planetary nebula LoTr5 Two different periods present in the binary nucleus of the planetary nebula LoTr5

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aca....43..445k&link_type=abstract

Acta Astronomica, vol. 43, no. 4, p. 445-453

Astronomy and Astrophysics

Astronomy

4

Astronomical Photometry, Astronomical Spectroscopy, Hot Stars, Light Curve, Planetary Nebulae, Stellar Spectra, Subdwarf Stars, Ubv Spectra, Variable Stars, Iue, Power Spectra

Scientific paper

We present new photoelectric UBV observations of IN Com -- the binary nucleus of the planetary nebula LoTr5, carried out in April 1993 with the double beam photometer at Mt. Suhora Observatory. Low-amplitude variations were detected with a period of about 5.d92, in agreement with the results of Noskova (1989) and Bond and Livio (1990), but also higher frequency variability was discovered. A preliminary ephemeris is given. We speculate on the origin of the observed variabilities.

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