2013A&A...553A..93B

Query : 2013A&A...553A..93B

2013A&A...553A..93B - Astronomy and Astrophysics, volume 553A93-93 (2013/5-1)

The variability of carbon stars in the Sagittarius dwarf spheroidal galaxy.

BATTINELLI P. and DEMERS S.

Abstract (from CDS):

Stars have been forming in massive dwarf spheroidal galaxies continuously for several Gyr. The detection of AGB carbon stars indicates that an intermediate-age population is present. Sagittarius, the most massive, contains some 100 carbon stars. Most of them are probably variable. Using photometric monitoring we intend to detect long period variables among Sagittarius carbon stars. We should be able to identify mira variables, semi-regular and irregular variables, and to determine their period and age group. We have obtained K and J images over four semesters. These images are centered on a sample of 27 photometrically identified C stars to follow their variation and determine their periodicity. We have established the period of 14 program stars and have identified 13 miras among them. From their periods we determined that most of them are in the 3-5 Gyr age group. The known miras, distributed over a wide area within Sagittarius dwarf spheroidal galaxy (Sgr), belong to populations of various ages and, most probably, various metallicities.

Abstract Copyright: ∼

Journal keyword(s): stars: AGB and post-AGB - stars: carbon - stars: variables: general - galaxies: individual: Sagittarius dwarf spheroidal

Nomenclature: Table 1: [BD2013] Sgr-NNa N=29 (Nos 1-26, 13a, 15a, 23a).

Simbad objects: 44

goto Full paper

goto View the references in ADS

Number of rows : 44
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 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 720 1
2 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
3 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1586 0
4 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
6 NAME Segue 1 G 10 07 03.2 +16 04 25     15.3     ~ 517 1
7 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
8 OGLE BLG-LPV-231555 LP* 18 22 16.5334146720 -25 52 07.843334052     18.322   14.60 ~ 3 0
9 2MASS J18221817-2937478 LP* 18 22 18.134 -29 37 47.84   16.70 15.02 14.54 12.78 ~ 1 0
10 OGLE BLG-LPV-264300 Mi* 18 29 20.3401057872 -23 16 41.589037344       16.27 13.78 ~ 4 0
11 2MASS J18360861-2357201 LP* 18 36 08.6030421648 -23 57 19.871691948   14.02 12.86 13.97   ~ 4 0
12 M 22 GlC 18 36 23.94 -23 54 17.1           ~ 1459 0
13 2MASS J18380409-3018256 Mi* 18 38 04.1042850960 -30 18 25.678769436       14.33 12.79 ~ 3 0
14 2MASS J18384232-2722250 LP* 18 38 42.3274849392 -27 22 24.999242916       16.06 13.43 ~ 2 0
15 OGLE BLG-LPV-265588 Mi* 18 39 36.3205674984 -24 49 15.573795492         11.43 ~ 6 0
16 2MASS J18432820-2731482 LP* 18 43 28.2064630968 -27 31 48.151231608         13.16 ~ 2 0
17 IRAS F18413-3040 Mi* 18 44 30.9602892412 -30 37 09.814806045         15.727 ~ 9 0
18 IRAS F18436-2849 AB* 18 46 51.61 -28 45 48.9           ~ 7 0
19 OGLE BLG-LPV-265985 Mi* 18 47 19.0750033752 -29 00 58.715765460         12.90 ~ 4 0
20 [LZM2008] Sgr9 C* 18 51 41.0592583824 -30 03 37.781120448     17.140   13.722 C 13 0
21 2MASS J18525144-3034598 Mi* 18 52 51.4455380688 -30 34 59.879067096       15.27 12.83 ~ 2 0
22 [IGI95] C2 C* 18 53 29.3785031976 -29 38 24.151220232   17.26   14.69 12.97 C 12 0
23 [LZM2008] Sgr12 Mi* 18 53 40.9689439259 -29 34 22.805382246           ~ 4 0
24 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
25 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
26 [WIC96] UKST 16 C* 18 57 21.5244798864 -29 07 54.237401292           ~ 6 0
27 IRAS F18555-3001 Mi* 18 58 43.8568122072 -29 56 55.003899696     21.194   17.200 ~ 8 0
28 [BD2013] Sgr-15a Mi* 18 59 35.3 -31 47 17           ~ 1 0
29 2MASS J18595792-3144283 LP* 18 59 57.9235065432 -31 44 28.268290068       15.57   ~ 1 0
30 OGLE BLG-LPV-266184 Mi* 18 59 59.1432751272 -30 42 02.484320796     15.657 14.85 13.25 ~ 6 0
31 2MASS J19003661-3123273 LP* 19 00 36.6144917016 -31 23 27.366911160       15.59 13.11 ~ 3 0
32 2MASS J19022331-3254427 LP* 19 02 23.3081619624 -32 54 42.884192232       15.35 13.09 ~ 2 0
33 IRAS 19013-3117 AB* 19 04 35.63 -31 12 56.4           ~ 6 0
34 2MASS J19045837-3142436 Mi* 19 04 58.3673061168 -31 42 43.664686488       15.61 12.85 ~ 2 0
35 2MASS J19080822-3338486 Mi* 19 08 08.2202815848 -33 38 48.763448592       16.06 13.84 ~ 1 0
36 WMIF 18 C* 19 09 39.0354304800 -29 56 56.133638484           ~ 4 0
37 2MASS J19110732-3232170 Mi* 19 11 07.3273862232 -32 32 17.118675384       14.14 12.08 ~ 2 0
38 WMIF 19 C* 19 11 14.9072251272 -31 53 10.140765576           ~ 3 0
39 2MASS J19113390-3151288 Mi* 19 11 33.9157574448 -31 51 28.986554844       15.46 14.01 ~ 3 0
40 2MASS J19155810-3032486 LP* 19 15 58.1187525792 -30 32 48.520094820       16.14 13.86 ~ 4 0
41 2MASS J19190538-3054260 Mi* 19 19 05.3814688992 -30 54 26.027051616       15.70 13.58 ~ 4 0
42 [MAG2004] 50 C* 19 31 38.5143846600 -30 02 30.505531704   19.5 17.0     C 7 0
43 [MAG2004] 18 C* 19 48 50.6472719832 -30 58 31.871468100     17.48     C 11 0
44 NAME Local Group GrG ~ ~           ~ 9325 0

To bookmark this query, right click on this link: simbad:objects in 2013A&A...553A..93B and select 'bookmark this link' or equivalent in the popup menu