CaltechAUTHORS
  A Caltech Library Service

The Catalina Surveys Periodic Variable Star Catalog

Drake, A. J. and Graham, M. J. and Djorgovski, S. G. and Catelan, M. and Mahabal, A. A. and Torrealba, G. and García-Álvarez, D. and Donalek, C. and Prieto, J. L. and Williams, R. and Larson, S. and Christensen, E. and Belokurov, V. and Koposov, S. E. and Beshore, E. and Boattini, A. and Gibbs, A. and Hill, R. and Kowalski, R. and Johnson, J. and Shelly, F. (2014) The Catalina Surveys Periodic Variable Star Catalog. Astrophysical Journal Supplement Series, 213 (1). Art. No. 9. ISSN 0067-0049. https://resolver.caltech.edu/CaltechAUTHORS:20140815-141005358

[img]
Preview
PDF - Published Version
See Usage Policy.

7Mb
[img] PDF - Submitted Version
See Usage Policy.

7Mb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20140815-141005358

Abstract

We present ~47,000 periodic variables found during the analysis of 5.4 million variable star candidates within a 20,000 deg^2 region covered by the Catalina Surveys Data Release-1 (CSDR1). Combining these variables with type ab RR Lyrae from our previous work, we produce an online catalog containing periods, amplitudes, and classifications for ~61,000 periodic variables. By cross-matching these variables with those from prior surveys, we find that >90% of the ~8000 known periodic variables in the survey region are recovered. For these sources, we find excellent agreement between our catalog and prior values of luminosity, period, and amplitude as well as classification. We investigate the rate of confusion between objects classified as contact binaries and type c RR Lyrae (RRc's) based on periods, colors, amplitudes, metallicities, radial velocities, and surface gravities. We find that no more than a few percent of the variables in these classes are misidentified. By deriving distances for this clean sample of ~5500 RRc's, we trace the path of the Sagittarius tidal streams within the Galactic halo. Selecting 146 outer-halo RRc's with SDSS radial velocities, we confirm the presence of a coherent halo structure that is inconsistent with current N-body simulations of the Sagittarius tidal stream. We also find numerous long-period variables that are very likely associated within the Sagittarius tidal stream system. Based on the examination of 31,000 contact binary light curves we find evidence for two subgroups exhibiting irregular light curves. One subgroup presents significant variations in mean brightness that are likely due to chromospheric activity. The other subgroup shows stable modulations over more than a thousand days and thereby provides evidence that the O'Connell effect is not due to stellar spots.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0067-0049/213/1/9DOIArticle
http://iopscience.iop.org/0067-0049/213/1/9/articlePublisherArticle
http://arxiv.org/abs/1405.4290arXivDiscussion Paper
ORCID:
AuthorORCID
Djorgovski, S. G.0000-0002-0603-3087
Mahabal, A. A.0000-0003-2242-0244
Additional Information:© 2014 The American Astronomical Society. Received 2014 February 3; accepted 2014 May 14; published 2014 June 25. CRTS and CSDR1 are supported by the U.S. National Science Foundation under grant AST-1313422. The CSS survey is funded by the National Aeronautics and Space Administration under grant No. NNG05GF22G issued through the Science Mission Directorate Near-Earth Objects Observations Program. J.L.P. acknowledges support from NASA through Hubble Fellowship Grant HF-51261.01-A awarded by the STScI, which is operated by AURA, Inc. for NASA, under contract NAS 5-26555. Support for M.C. and G.T. is provided by the Ministry for the Economy, Development, and Tourism's Programa Iniciativa Científica Milenio through grant IC120009, awarded to the Millennium Institute of Astrophysics (MAS); by Proyecto Basal PFB-06/2007 and by Proyecto FONDECYT Regular #1110326 and #1141141. SDSS-III is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS-III Collaboration. Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy Office of Science. The SDSS-III Web site is http://www.sdss3.org/. This research has made use of the International Variable Star Index (VSX) database, operated at AAVSO, Cambridge, MA, USA.
Funders:
Funding AgencyGrant Number
NSFAST-1313422
NASANNG05GF22G
NASA Hubble FellowshipHF-51261.01-A
Iniciativa Científica Milenio del Ministerio de Economía, Fomento y TurismoIC120009
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1110326
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1141141
Basal-CATAPFB-06/2007
Subject Keywords:catalogs; Galaxy: halo; Galaxy: stellar content; Galaxy: structure; techniques: photometric; stars: variables: general
Issue or Number:1
Record Number:CaltechAUTHORS:20140815-141005358
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140815-141005358
Official Citation:The Catalina Surveys Periodic Variable Star Catalog A. J. Drake et al. 2014 ApJS 213 9
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48628
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:19 Aug 2014 23:04
Last Modified:03 Oct 2019 07:05

Repository Staff Only: item control page