Roy, Lucie, Petite Phénoménologie de l’écriture filmique. Paris/Québec : Méridiens Klincksieck et Éditions Nota Bene, 1999, 251 p.

Beaulieu, Julie

doi:10.7202/024859ar

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The standard LMC Cepheids have already been identified both in the MACHO, EROS and the OGLE databases separately for amplitudes greater than about 0.01 mag (Beaulieu et al 1995;Welch et al 1995;Udalski et al 1999;Kanbur et al 2003). Our goal here is to concentrate on ULA objects.…”

Section: Introductionmentioning

confidence: 96%

Ultra-Low Amplitude Variables in the Large Magellanic Cloud—classical Cepheids, Pop. Ii Cepheids, Rv Tau Stars, and Binary Variables

Buchler

Wood

Soszyński

2009

ApJ

View full text Add to dashboard Cite

A search for variable stars with ultra-low amplitudes (ULAs), in the millimagnitude range, has been made in the combined MACHO and OGLE databases in the broad vicinity of the Cepheid instability strip in the HR diagram. A total of 25 singly periodic and 4 multiply periodic ULA objects have been uncovered. Our analysis does not allow us to distinguish between pulsational and ellipsoidal (binary) variabilities, nor between Large Magellanic Cloud (LMC) and foreground objects. However, the objects are strongly clustered and appear to be associated with the pulsational instability strips of LMC Pop. I and II variables. When combined with the ULA variables of Buchler et al., a total of 20 objects fall close to the classical Cepheid instability strip. However, they appear to fall on parallel period-magnitude (PM) relations that are shifted to slightly higher magnitude which would confer them a different evolutionary status. Low-amplitude RV Tauri and Pop. II Cepheids have been uncovered that do not appear in the MACHO or OGLE catalogs. Interestingly, a set of binaries seem to lie on a PM relation that is essentially parallel to that of the RV Tauri/Pop. II Cepheids.

show abstract

Section: Introductionmentioning

confidence: 96%

Ultra-Low Amplitude Variables in the Large Magellanic Cloud—classical Cepheids, Pop. Ii Cepheids, Rv Tau Stars, and Binary Variables

Buchler

Wood

Soszyński

2009

ApJ

View full text Add to dashboard Cite

show abstract

Roy, Lucie, Petite Phénoménologie de l’écriture filmique. Paris/Québec : Méridiens Klincksieck et Éditions Nota Bene, 1999, 251 p.

Abstract: Eisenstein dans le texte Volume 11, numéro 2-3, printemps 2001 URI : id.erudit.org/iderudit/024859ar

Cited by 1 publication

References 0 publications

Ultra-Low Amplitude Variables in the Large Magellanic Cloud—classical Cepheids, Pop. Ii Cepheids, Rv Tau Stars, and Binary Variables

Ultra-Low Amplitude Variables in the Large Magellanic Cloud—classical Cepheids, Pop. Ii Cepheids, Rv Tau Stars, and Binary Variables

Contact Info

Product

Resources

About