MACHO LMC first-overtone RR Lyrae

DOI

More than 1300 variables classified provisionally as first-overtone RR Lyrae pulsators in the MACHO variable-star database of the Large Magellanic Cloud (LMC) have been subjected to standard frequency analysis. Based on the remnant power in the prewhitened spectra, we found 70% of the total population to be monoperiodic. The remaining 30% (411 stars) are classified as one of nine types according to their frequency spectra. Several types of RR Lyrae pulsational behavior are clearly identified here for the first time. Together with the earlier discovered double-mode (fundamental and first-overtone) variables, this study increased the number of known double-mode stars in the LMC to 181. During the total 6.5yr time span of the data, 10% of the stars showed strong period changes.

Cone search capability for table J/ApJ/542/257/table1 (Previously Unknown RR01 Variables of the MACHO RR1 Sample (1))

Cone search capability for table J/ApJ/542/257/table2 (RR1-{nu}1 Variables of the MACHO RR1 Sample (1))

Cone search capability for table J/ApJ/542/257/table3 (RR1-BL Variables of the MACHO RR1 Sample (1))

Cone search capability for table J/ApJ/542/257/table4 (RR1-PC Variables of the MACHO RR1 Sample (1))

Cone search capability for table J/ApJ/542/257/table5 (Miscellaneous Variables of the MACHO RR1 Sample (1))

Identifier
DOI http://doi.org/10.26093/cds/vizier.15420257
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/542/257
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/542/257
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/542/257
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/542/257
Provenance
Creator Alcock C.; Allsman R.; Alves D.R.; Axelrod T.; Becker A.; Bennett D.,Clement C.; Cook K.H.; Drake A.; Freeman K.; Geha M.; Griest K.; Kovacs G.,Kurtz D.W.; Lehner M.; Marshall S.; Minniti D.; Nelson C.; Peterson B.,Popowski P.; Pratt M.; Quinn P.; Rodgers A.; Rowe J.; Stubbs C.,Sutherland W.; Tomaney A.; Vandehei T.; Welch D.L.
Publisher CDS
Publication Year 2001
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Physics; Stellar Astronomy