Fourier analysis of short-period SMC Cepheids: A comparison with Galactic Cepheids

Details Fourier analysis of short-period SMC Cepheids: A comparison with Galactic Cepheids Fourier analysis of short-period SMC Cepheids: A comparison with Galactic Cepheids

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...292..450b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 292, no. 2, p. 450-456

Astronomy and Astrophysics

Astrophysics

8

Cepheid Variables, Fourier Analysis, Harmonics, Magellanic Clouds, Milky Way Galaxy, Stellar Luminosity, Stellar Oscillations, Astronomical Photography, Error Analysis, Light Curve

Scientific paper

A Fourier analysis has been made of the Small Magellanic Cloud (SMC) classical Cepheid data of Smith et al. It is shown that the grouping into fundamental and first overtone pulsators, implied by the period-luminosity diagram, survives when the Fourier coefficients are plotted versus period. A comparison with the Galactic Cepheid data corroborates the existing evidence that the short period Galactic s-Cepheids are indeed first overtone pulsators. The only long period overtone Cepheid in the sample that is reliably covered (P = 3.49 d) also conforms with the corresponding s-Cepheids. On the other hand, the hypothesis of Gieren et al. that the long period s-Cepheids are fundamental pulsators is refuted. The data show systematic differences between the SMC Cepheids and their Galactic counterparts, differences that are of theoretical interest. The need for a further observational effort devoted to SMC and to Large Magellanic cloud (LMC) Cepheids is stressed.

Affiliated with

Also associated with

No associations

Rating

Fourier analysis of short-period SMC Cepheids: A comparison with Galactic Cepheids 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 Fourier analysis of short-period SMC Cepheids: A comparison with Galactic Cepheids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fourier analysis of short-period SMC Cepheids: A comparison with Galactic Cepheids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1317619