2004A&A...421..667C

Query : 2004A&A...421..667C

2004A&A...421..667C - Astronomy and Astrophysics, volume 421667-672 (2004/7-2)

Discovery of a variable star population in NGC 2808.

CORWIN T.M., CATELAN M., BORISSOVA J. and SMITH H.A.

Abstract (from CDS):

We have applied the image subtraction method to images of the peculiar, bimodal-horizontal branch globular cluster NGC 2808, taken over a total of six nights over a range of five months. As a result, we have found, for the first time, a sizeable population of variable stars in the crowded inner regions of the cluster, thus raising the known RR Lyrae population in the cluster to a total of 18 stars. In addition, an eclipsing binary and two other variables with periods longer than 1 day were also found. Periods, positions and (differential) light curves are provided for all the detected variables. The Oosterhoff classification of NGC 2808, which has recently been associated with a previously unknown dwarf galaxy in Canis Major, is briefly discussed.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: globular clusters: individual: NGC 2808 - stars: horizontal-branch - stars: variables: RR Lyr

Nomenclature: Table 1: Cl* NGC 2808 SAW VNN (Nos V13-V30) added.

Errata: + corrigendum vol. 539, p. C1 (2012)

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 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
2 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1167 0
3 Cl* NGC 2808 SAW V30 EB* 09 11 49.37 -64 51 52.6   17.84 17.48   16.83 ~ 2 0
4 Cl* NGC 2808 SAW V28 RR* 09 11 50.58 -64 51 27.8   16.58 16.25   15.74 ~ 3 0
5 Cl* NGC 2808 SAW V26 RR* 09 11 53.0747366232 -64 51 30.728688192   16.48 16.16   15.63 ~ 5 0
6 Cl* NGC 2808 SAW V27 RR* 09 11 53.64 -64 52 59.7           ~ 2 0
7 Cl* NGC 2808 SAW V12 RR* 09 11 56.1484102656 -64 50 09.608521776   16.62 16.26   15.72 ~ 8 0
8 Cl* NGC 2808 SAW V10 WV* 09 11 56.8560670776 -64 53 23.223766056   15.92 15.30   14.48 ~ 14 0
9 2MASS J09115869-6451285 AB* 09 11 58.7058126720 -64 51 28.590333516   15.034 13.646   12.123 ~ 7 0
10 Cl* NGC 2808 SAW V29 Ce* 09 12 00.5335453796 -64 51 39.160968386   15.50 14.82   13.90 ~ 4 0
11 Cl* NGC 2808 SAW V24 RR* 09 12 02.62 -64 52 10.7   16.12 15.55   14.74 ~ 2 0
12 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
13 Cl* NGC 2808 SAW V23 RR* 09 12 03.26 -64 52 19.7   16.51 16.05   15.47 ~ 2 0
14 Cl* NGC 2808 SAW V22 RR* 09 12 03.87 -64 51 55.3           ~ 4 0
15 Cl* NGC 2808 SAW V21 RR* 09 12 03.9055448381 -64 51 25.883400567           ~ 4 0
16 Cl* NGC 2808 SAW V20 RR* 09 12 05.32 -64 51 26.5   16.55 16.01   15.37 ~ 2 0
17 Cl* NGC 2808 SAW V19 RR* 09 12 06.26 -64 52 10.7           ~ 3 0
18 Cl* NGC 2808 SAW V18 RR* 09 12 06.57 -64 52 17.0           ~ 2 0
19 Cl* NGC 2808 SAW V17 RR* 09 12 07.01 -64 51 57.3           ~ 2 0
20 Cl* NGC 2808 SAW V16 RR* 09 12 09.1130980896 -64 52 51.576616128   16.75 16.32   15.67 ~ 7 0
21 Cl* NGC 2808 SAW V15 RR* 09 12 10.6144845816 -64 51 15.721326504   16.82 16.31   15.46 ~ 5 0
22 Cl* NGC 2808 SAW V14 RR* 09 12 13.4021993400 -64 51 03.995507844   16.75 16.27   15.53 ~ 9 0
23 2MASS J09122021-6452204 LP* 09 12 20.2262395152 -64 52 20.517485268   14.8 13.4   11.2 ~ 9 0
24 Cl* NGC 2808 SAW V13 RR* 09 12 23.3451041064 -64 57 10.588238136   16.09 15.52   14.76 ~ 3 0
25 Cl* NGC 2808 SAW V6 RR* 09 12 30.0771961320 -64 56 37.868817012   16.75 16.31   15.62 ~ 11 0
26 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
27 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0

To bookmark this query, right click on this link: simbad:objects in 2004A&A...421..667C and select 'bookmark this link' or equivalent in the popup menu