Light curves of two NGC6981 variables

DOI

Two previously unknown variable stars in the crowded central region of the globular cluster NGC 6981 are presented. The observations were made using the electron multiplying CCD (EMCCD) camera at the Danish 1.54m Telescope at La Silla, Chile. The two variables were not previously detected by conventional CCD imaging because of their proximity to a bright star. This discovery demonstrates that EMCCDs are a powerful tool for performing high-precision time-series photometry in crowded fields and near bright stars, especially when combined with difference image analysis.

Identifier
DOI http://doi.org/10.26093/cds/vizier.35530111
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/553/A111
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/553/A111
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/553/A111
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/553/A111
Provenance
Creator Skottfelt J.; Bramich D.M.; Figuera Jaimes R.; Jorgensen U.G.; Kains N.,Harpsoe K.B.W.; Liebig C.; Penny M.T.; Alsubai K.A.; Andersen J.M.,Bozza V.; Browne P.; Calchi Novati S.; Damerdji Y.; Diehl C.; Dominik M.,Elyiv A.; Giannini E.; Hessman F.; Hinse T.C.; Hundertmark M.; Juncher D.,Kerins E.; Korhonen H.; Mancini L.; Martin R.; Rabus M.; Rahvar S.,Scarpetta G.; Southworth J.; Snodgrass C.; Street R.A.; Surdej J.,Tregloan-Reed J.; Vilela C.; Williams A.
Publisher CDS
Publication Year 2013
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; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy