SIMBAD references

2019MNRAS.487.5932P - Mon. Not. R. Astron. Soc., 487, 5932-5945 (2019/August-3)

The ASAS-SN catalogue of variable stars - IV. Periodic variables in the APOGEE survey.

PAWLAK M., PEJCHA O., JAKUBCIK P., JAYASINGHE T., KOCHANEK C.S., STANEK K.Z., SHAPPEE B.J., HOLOIEN T.W.-S., THOMPSON T.A., PRIETO J.L., DONG S., SHIELDS J.V., POJMANSKI G., BRITT C.A. and WILL D.

Abstract (from CDS):

We explore the synergy between photometric and spectroscopic surveys by searching for periodic variable stars among the targets observed by the Apache Point Observatory Galactic Evolution Experiment (APOGEE) using photometry from the All-Sky Automated Survey for Supernovae (ASAS-SN). We identified 1924 periodic variables among more than 258 000 APOGEE targets; 465 are new discoveries. We homogeneously classified 430 eclipsing and ellipsoidal binaries, 139 classical pulsators (Cepheids, RR Lyrae, and δ Scuti), 719 long-period variables (pulsating red giants), and 636 rotational variables. The search was performed using both visual inspection and machine learning techniques. The light curves were also modelled with the damped random walk stochastic process. We find that the median [Fe/H] of variable objects is lower by 0.3 dex than that of the overall APOGEE sample. Eclipsing binaries and ellipsoidal variables are shifted to a lower median [Fe/H] by 0.2 dex. Eclipsing binaries and rotational variables exhibit significantly broader spectral lines than the rest of the sample. We make ASAS-SN light curves for all the APOGEE stars publicly available and provide parameters for the variable objects.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): catalogues - surveys - stars: variables: general

VizieR on-line data: <CDS Catalogue: II/366> : gather 2018MNRAS.477.3145J (N=65270), 2019MNRAS.486.1907J (N=350445), 2019MNRAS.485..961J (N=8848), 2019MNRAS.487.5932P (N=1924), 2020MNRAS.491...13J (N=122648), and 2020MNRAS.493.4186J (N=117367)

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

CDS comments: The resolution of the ASAS-SN survey is 15''. As a consequence the astrometry is poor, usually within 5'', but it can be more than 1 pixel. Status of the catalogue II/366 in SIMBAD : Classical Cepheids (Type = DCEP or DCEPS, N=2183), and Mira Variables (Type = M, N=10230), have been enterely ingested; other LPVs are being processed. Objects with an undefined variability type (Type = VAR, N=62577) will not be ingested.

Simbad objects: 66

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