The nature of dwarf Cepheids. I - AD Canis Minoris

Details The nature of dwarf Cepheids. I - AD Canis Minoris The nature of dwarf Cepheids. I - AD Canis Minoris

Nov 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...201..653b&link_type=abstract

Astrophysical Journal, vol. 201, Nov. 1, 1975, pt. 1, p. 653-660.

Astronomy and Astrophysics

Astrophysics

44

Cepheid Variables, Dwarf Stars, Stellar Spectrophotometry, Ubv Spectra, Electrophotometry, H Beta Line, Shock Wave Propagation, Ultraviolet Radiation

Scientific paper

New uvby-beta photometry of AD CMi covering several cycles is reported. No evidence for shock wave emission is detected in either the H beta line or in the Wesselink radius solutions. Due to the large acceleration at certain phases, a Wesselink analysis requires phases at equal temperatures, as opposed to phases of equal color. This explains the previously reported failure of the Wesselink method as well as the reported evidence for shock waves. The observed ultraviolet excess during the rising branch can be fully explained by effective gravity variations. A Wesselink radius of 3 solar radii is derived. This leads to a Population I mass. No evidence for a low-mass Population II nature exists for this star. Except for the large amplitude, the star is virtually indistinguishable from a normal delta Scuti variable.-

Affiliated with

Also associated with

No associations

Rating

The nature of dwarf Cepheids. I - AD Canis Minoris does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The nature of dwarf Cepheids. I - AD Canis Minoris, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The nature of dwarf Cepheids. I - AD Canis Minoris will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1376336