2010AJ....140..328G

Query : 2010AJ....140..328G

2010AJ....140..328G - Astron. J., 140, 328-338 (2010/August-0)

High-amplitude δ-Scutis in the Large Magellanic Cloud.

GARG A., COOK K.H., NIKOLAEV S., HUBER M.E., REST A., BECKER A.C., CHALLIS P., CLOCCHIATTI A., MIKNAITIS G., MINNITI D., MORELLI L., OLSEN K., PRIETO J.L., SUNTZEFF N.B., WELCH D.L. and WOOD-VASEY W.M.

Abstract (from CDS):

We present 2323 high-amplitude δ-Scuti (HADS) candidates discovered in the Large Magellanic Cloud by the SuperMACHO survey (Rest et al.). Frequency analyses of these candidates reveal that several are multimode pulsators, including 119 whose largest amplitude of pulsation is in the fundamental (F) mode and 19 whose largest amplitude of pulsation is in the first overtone (FO) mode. Using Fourier decomposition of the HADS light curves, we find that the period-luminosity (PL) relation defined by the FO pulsators does not show a clear separation from the PL relation defined by the F pulsators. This differs from other instability strip pulsators such as type c RR Lyrae. We also present evidence for a larger amplitude, subluminous population of HADS similar to that observed in Fornax.

Abstract Copyright: ∼

Journal keyword(s): Magellanic Clouds - surveys

VizieR on-line data: <Available at CDS (J/AJ/140/328): table1.dat table2.dat table3.dat>

Nomenclature: Table 1: [GCN2010] NNNNN-smFF-NN, [GCN2010] NNNNN-smaF-NN, [GCN2010] NNNNN-smaa-NN N=2323.

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME Fornax H3 GlC 02 39 48.16 -34 15 28.6   13.59       ~ 124 0
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7078 0
3 OGLE J050309.65-684327.6 dS* 05 03 09.57 -68 43 27.4   19.99 19.846   19.389 ~ 4 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17459 0
5 * del Sct dS* 18 42 16.4268984096 -09 03 09.188922060   5.04 4.71     F2II-III 484 0

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