SIMBAD references

2017AJ....153..104W - Astron. J., 153, 104-104 (2017/March-0)

Variable stars observed in the Galactic disk by AST3-1 from Dome A, Antarctica.

WANG L., MA B., LI G., HU Y., FU J., WANG L., ASHLEY M.C.B., CUI X., DU F., GONG X., LI X., LI Z., LIU Q., PENNYPACKER C.R., SHANG Z., YUAN X., YORK D.G. and ZHOU J.

Abstract (from CDS):

AST3-1 is the second-generation wide-field optical photometric telescope dedicated to time-domain astronomy at Dome A, Antarctica. Here, we present the results of an i-band images survey from AST3-1 toward one Galactic disk field. Based on time-series photometry of 92,583 stars, 560 variable stars were detected with i magnitude <=16.5 mag during eight days of observations; 339 of these are previously unknown variables. We tentatively classify the 560 variables as 285 eclipsing binaries (EW, EB, and EA), 27 pulsating variable stars (δ Scuti, γ Doradus, δ Cephei variable, and RR Lyrae stars), and 248 other types of variables (unclassified periodic, multiperiodic, and aperiodic variable stars). Of the eclipsing binaries, 34 show O'Connell effects. One of the aperiodic variables shows a plateau light curve and another variable shows a secondary maximum after peak brightness. We also detected a complex binary system with an RS CVn-like light-curve morphology; this object is being followed-up spectroscopically using the Gemini South telescope.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: eclipsing - catalogs - methods: data analysis - stars: variables: general - surveys - techniques: photometric - techniques: photometric

VizieR on-line data: <Available at CDS (J/AJ/153/104): table2.dat table4.dat curves/*>

Nomenclature: Fig. 10, Table 2: [WML2017] ASTNNNNN N=560 among (Nos 00006-96345).

Status at CDS:  

Simbad objects: 563

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2020.05.29-20:09:58

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