Gaia Data Release 2 - Summary of the variability processing and analysis results

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Volume 618 (October 2018)

A&A, 618 (2018) A30

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Gaia Data Release 2

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Table 2

Classification (absolute) completeness and contamination estimates with respect to available cross-matched reference catalogues.

Group	Class (`best_class_name`)	Catalogue (and region)	Completeness	Contamination
Cepheids	`CEP, ACEP, T2CEP`	OGLE-IV (LMC)	72%	>5%
Cepheids	`CEP, ACEP, T2CEP`	OGLE-IV (SMC)	68%	>5%
δ Scuti and SX Phoenicis	`DSCT_SXPHE`	Catalina (Drake et al. 2014)	99%	>13%
RR Lyrae stars	`RRAB, RRC, RRD, ARRD`	OGLE-IV (LMC)	60%	>9%
RR Lyrae stars	`RRAB, RRC, RRD, ARRD`	OGLE-IV (SMC)	64%	15%
RR Lyrae stars	`RRAB, RRC, RRD, ARRD`	OGLE-IV (Bulge)	49%	44%
RR Lyrae stars	`RRAB, RRC, RRD, ARRD`	Catalina (Drake et al. 2014)	63%	>5%
LPV	`MIRA_SR`	OGLE-III^a (LMC+SMC)	40–50%	<5%
LPV	`MIRA_SR`	Gaia DR2 with^b ϖ∕σ_ϖ > 10	–	~7%

Notes. For more details on the validation of the classification results, we refer to (Rimoldini et al., in prep.). ^(a) Estimates are restricted to sources with peak-to-peak amplitude >0.2 mag. ^(b) ϖ and σ_ϖ refer to the DR2 parallax and associated error.

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