DY Herculis and the Dwarf Cepheid P-L Relation

Details DY Herculis and the Dwarf Cepheid P-L Relation DY Herculis and the Dwarf Cepheid P-L Relation

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20111708j&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #117.08; Bulletin of the American Astronomical Society, Vol. 34, p.1296

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Scientific paper

We present new VJK photometry and echelle radial velocity measurements for the High-Amplitude Delta Scuti star (HADS, dwarf Cepheid) DY Herculis. These data are used to determine a BW radius for the star. This technique is successful and when the results are combined with results for other stars in our sample, the PR and PL relations appear to be extensions of the relations for classical Cepheids. This supports the 'long' distance scale hypothesis.

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