2019AJ....157...47S

Query : 2019AJ....157...47S

2019AJ....157...47S - Astron. J., 157, 47-47 (2019/February-0)

New variable stars in NGC 6652 and its background Sagittarius stream.

SALINAS R., VIVAS A.K. and CONTRERAS RAMOS R.

Abstract (from CDS):

We conducted a variable star search on the metal-rich Galactic globular cluster NGC 6652 using archival Gemini-S/Gemini Multiobject Spectrograph data. We report the discovery of nine new variable stars in the NGC 6652 field, of which we classify six as eclipsing binaries and one as an SX Phoenicis star, leaving two variables without classification. Using proper motions from Gaia DR2 and Hubble Space Telescope, albeit with some uncertainties, we find that the cluster, the field, and the background Sagittarius stream each have three of these variables. We also reassess the membership of known variables based on the Gaia proper motions, confirming the existence of one RR Lyrae star in the cluster.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: individual: Sgr dSph - globular clusters: individual: NGC 6652 - stars: variables: delta Scuti - stars: variables: RR Lyrae

Nomenclature: Table 2: Cl* NGC 6652 SAW VNN (Nos V15-V23) added.

Simbad objects: 27

goto Full paper

goto View the references in ADS

Number of rows : 27
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Sagittarius Stream St* 02 22 +00.0           ~ 1001 0
2 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
3 Cl* NGC 6652 SAW V3 RR* 18 35 19.1032365174 -32 58 56.994958283           ~ 2 0
4 WRAY 15-1877 LP* 18 35 26.7948674208 -32 54 31.155499764     13.00     ~ 8 0
5 Cl* NGC 6652 SAW V6 RR* 18 35 27.3889692768 -32 59 04.263021852           ~ 4 0
6 Cl* NGC 6652 SAW V15 V* 18 35 31.1774755968 -32 58 48.554645016           ~ 1 0
7 Cl* NGC 6652 SAW V4 V* 18 35 31.8012122808 -32 54 54.343224468           ~ 2 0
8 V* V3616 Sgr LP* 18 35 32.9910453936 -32 57 23.319897588           ~ 6 0
9 Cl* NGC 6652 SAW V16 EB? 18 35 33.0110147616 -32 58 56.283958596           ~ 1 0
10 Cl* NGC 6652 SAW V17 SX* 18 35 39.50 -32 59 56.3           ~ 1 0
11 Cl* NGC 6652 SAW V18 V* 18 35 40.50 -32 57 10.0           ~ 1 0
12 Cl* NGC 6652 SAW V1 V* 18 35 41.4344683608 -32 55 47.419800456           ~ 2 0
13 Cl* NGC 6652 SAW V19 V* 18 35 41.8085567736 -32 57 59.992278228           ~ 1 0
14 Cl* NGC 6652 SAW V10 LXB 18 35 43.9 -32 59 18     18.9     ~ 104 0
15 Cl* NGC 6652 SAW V20 V* 18 35 44.3750689800 -32 58 26.423920416           ~ 1 0
16 Cl* NGC 6652 SAW V11 LXB 18 35 44.551 -32 59 38.38         18.72 ~ 23 0
17 Cl* NGC 6652 SAW V5 RR* 18 35 45.4611916008 -33 05 00.469423248         15.034 ~ 8 0
18 NGC 6652 GlC 18 35 45.63 -32 59 26.6           ~ 474 0
19 Cl* NGC 6652 SAW V12 CV? 18 35 45.751 -32 59 23.51           ~ 7 0
20 Cl* NGC 6652 SAW V13 V* 18 35 45.8050434132 -32 59 35.949162062         14.17 ~ 2 0
21 Cl* NGC 6652 SAW V14 SX* 18 35 46.3283183160 -32 59 32.816242392         17.74 ~ 2 0
22 Cl* NGC 6652 SAW V21 V* 18 35 52.5397131192 -32 57 29.101995216           ~ 1 0
23 Cl* NGC 6652 SAW V22 EB? 18 35 52.6305260640 -32 59 19.760384616           ~ 1 0
24 Cl* NGC 6652 SAW V23 V* 18 35 54.78 -32 59 08.8           ~ 1 0
25 Cl* NGC 6652 SAW V8 EB* 18 36 11.8240187640 -33 02 21.188106816           ~ 4 0
26 V* V3641 Sgr RR* 18 36 19.8399033336 -32 56 40.456779000         14.991 ~ 10 0
27 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2

To bookmark this query, right click on this link: simbad:objects in 2019AJ....157...47S and select 'bookmark this link' or equivalent in the popup menu