Pulsational properties of extragalactic Cepheids. I - Differential light curves for field no. 1 in NGC 6822

Details Pulsational properties of extragalactic Cepheids. I - Differential light curves for field no. 1 in NGC 6822 Pulsational properties of extragalactic Cepheids. I - Differential light curves for field no. 1 in NGC 6822

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.236..567s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 236, Feb. 1, 1989, p. 567-580.

Astronomy and Astrophysics

Astronomy

5

Cepheid Variables, Light Curve, Local Group (Astronomy), Sky Surveys (Astronomy), Astronomical Photometry, Stellar Magnitude, Variability

Scientific paper

A programme is underway to obtain accurate, well-sampled light curves for Cepheids in several Local Group galaxies. We have succeeded in attaining accuracies of a few hundredths of a magnitude for Cepheids at least as faint as r = 19.5. Photometry for six known Cepheids and three other variables in NGC 6822 is presented. Although better sampling in phase is needed to allow full light curves analysis, a preliminary comparison with galactic Cepheids shows some interesting differences.

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