BVRI photometry of extragalactic Cepheids and new insights for the distance scale
Journal Article
·
· Astrophys. J., Suppl. Ser.; (United States)
We present new BVRI photoelectric photometry of long-period Cepheids in the Large and Small Magellanic Clouds. Period-luminosity relations based on both time-averaged and single, random-phased data are discussed, and it is shown that at wavelengths longward of the R bandpass the randomly phased data should give a spread at fixed period which is always less than the time-averaged B period-luminosity relation. Single-epoch data for five Cepheids measured in CCD exposures of a single field in M33 are used to illustrate the power of the random-phase period-luminosity relation for the Cepheid distance scale.
- Research Organization:
- Mount Wilson and Las Campanas Observatories, Carnegie Institution of Washington, Pasadena, California
- OSTI ID:
- 5014849
- Journal Information:
- Astrophys. J., Suppl. Ser.; (United States), Journal Name: Astrophys. J., Suppl. Ser.; (United States) Vol. 59:3; ISSN APJSA
- Country of Publication:
- United States
- Language:
- English
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