Exploring the crowded central region of ten Galactic globular clusters using EMCCDs - Variable star searches and new discoveries

R. Figuera Jaimes; D. M. Bramich; J. Skottfelt; N. Kains; U. G. Jørgensen; K. Horne; M. Dominik; K. A. Alsubai; V. Bozza; S. Calchi Novati; S. Ciceri; G. D’Ago; P. Galianni; S.-H. Gu; K. B. W Harpsøe; T. Haugbølle; T. C. Hinse; M. Hundertmark; D. Juncher; H. Korhonen; L. Mancini; A. Popovas; M. Rabus; S. Rahvar; G. Scarpetta; R. W. Schmidt; C. Snodgrass; J. Southworth; D. Starkey; R. A. Street; J. Surdej; X.-B. Wang; O. Wertz

doi:10.1051/0004-6361/201527641

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Volume 588 (April 2016)

A&A, 588 (2016) A128

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Table 1

Time-series I photometry for all known and new variables in the field of view covered in each globular cluster.

Cluster	Var	Filter	HJD	M_std	M_ins	σ_m	f_ref	σ_ref	f_diff	σ_diff	p
	id		(d)	(mag)	(mag)	(mag)	(ADU s^-1)	(ADU s^-1)	(ADU s^-1)	(ADU s^-1)

NGC 104	PC1-V12	I	2 456 472.93210	15.846	6.777	0.014	24 971.015	9644.446	−30 350.989	1425.567	5.5131
NGC 104	PC1-V12	I	2 456 476.94 184	15.729	6.659	0.012	24 971.015	9644.446	−16 234.626	1138.337	4.9447
. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
NGC 5139	V457	I	24 56 432.58154	15.735	6.649	0.007	20 096.379	684.928	+8409.333	673.724	4.6618
NGC 5139	V457	I	2456438.70588	15.832	6.746	0.005	20 096.379	684.928	−312.498	432.554	4.5021
. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
NGC 5286	V37	I	2 456 445.53773	15.978	6.951	0.005	18 451.916	1202.455	−8631.145	385.937	4.6006
NGC 5286	V37	I	2 456 446.53053	15.744	6.717	0.003	18 451.916	1202.455	+9806.700	232.129	4.6341
. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .

Notes. The standard M_std and instrumental M_ins magnitudes are listed in Cols. 5 and 6, respectively, corresponding to the cluster, variable star, filter, and epoch of mid-exposure listed in Cols. 1−4, respectively. The uncertainty on M_ins is listed in Col. 7, which also corresponds to the uncertainty on M_std. For completeness, we also list the quantities f_ref, f_diff, and p from Eq. (3) in Cols. 8, 10, and 12, along with the uncertainties σ_ref and σ_diff in Cols. 9 and 11. This is an extract from the full table, which is available at the CDS.

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