2011A&A...525A..69B

Query : 2011A&A...525A..69B

2011A&A...525A..69B - Astronomy and Astrophysics, volume 525A69-69 (2011/1-1)

Long period variable survey in NGC 6822.

BATTINELLI P. and DEMERS S.

Abstract (from CDS):

The star-formation history of the intermediate-age population of the Local Group dwarf irregular galaxy NGC 6822 may have been influenced by the often discussed interaction with its HI cloud that might have produced the present polar-ring structure. We investigate the period distribution of the Mira variables in the central region and the spheroid of NGC 6822. We use the new wide-field near-infrared imager CPAPIR to acquire Ks images of a 32'x32' area, which includes a good part of the eastern spheroid of NGC 6822. Periods could be determined for 45 cyclic and semi-regular variables brighter than <K The period distribution of the long period variables may reflect the proposed interaction with the HI cloud that produces the polar ring.

Abstract Copyright: ∼

Journal keyword(s): surveys - stars: AGB and post-AGB - stars: carbon - stars: variables: general - stars: late-type - instrumentation: miscellaneous

Nomenclature: Tables 3-4: [BD2011] NNN (Nos 1-33, 100-130).

Simbad objects: 73

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Number of rows : 73
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
5 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
6 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
7 [WMF2013] 40102 Mi* 19 44 47.219 -14 45 03.90           ~ 3 0
8 [WMF2013] 40114 Mi* 19 44 47.80 -14 51 41.8           ~ 3 0
9 [LDB2002] 275 V* 19 44 48.435 -14 53 58.42           ~ 4 0
10 [LDB2002] 284 LP* 19 44 48.817 -14 47 22.05           ~ 5 0
11 [BD2011] 3 Mi* 19 44 48.9760084919 -14 38 05.431767964           ~ 6 0
12 2MASS J19445116-1440511 Mi* 19 44 51.1570920960 -14 40 51.289966632           ~ 5 0
13 [WMF2013] 10807 Mi* 19 44 51.907 -14 49 54.74           ~ 3 0
14 [WMF2013] 12445 Mi* 19 44 51.99 -14 47 26.1           ~ 2 0
15 [SRC2012] 296.217316-14.776381 Mi* 19 44 52.156 -14 46 34.97           ~ 3 0
16 [LDB2002] 367 V* 19 44 52.8135716160 -14 45 29.096075484           ~ 4 0
17 [LDB2002] 370 C* 19 44 52.881 -14 43 42.29           Ce 6 0
18 [WMF2013] 20239 Mi* 19 44 54.32 -14 43 31.9           ~ 2 0
19 [BD2011] 106 AB? 19 44 54.331 -14 46 02.60           ~ 3 0
20 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
21 [BD2011] 107 LP* 19 44 56.297 -14 46 23.70           ~ 4 0
22 [WMF2013] 31168 Mi* 19 44 57.308 -14 52 12.74           ~ 3 0
23 [BD2011] 108 Mi* 19 44 58.19 -14 54 41.7           ~ 2 0
24 [BD2011] 109 V* 19 44 59.86 -14 46 54.3           ~ 1 0
25 [BD2011] 110 V* 19 45 00.08 -14 36 12.8           ~ 1 0
26 2MASS J19450019-1446040 Mi* 19 45 00.1995684696 -14 46 04.092364380         18.50 ~ 5 0
27 [BSM2001] CTIO-2679 V* 19 45 00.381 -14 44 10.58   21.92 21.71     ~ 3 0
28 [BD2011] 112 V* 19 45 00.82 -14 46 09.6           ~ 2 0
29 [LDB2002] 565 V* 19 45 01.31 -14 41 11.5           ~ 3 0
30 [WMF2013] 11299 Mi* 19 45 01.751 -14 46 34.90           ~ 3 0
31 [LDB2002] 572 V* 19 45 01.868 -14 46 09.38           ~ 4 0
32 [H25] V13 Ce* 19 45 01.90 -14 47 32.3     18.40     ~ 16 0
33 [WMF2013] 30268 Mi* 19 45 02.124 -14 53 16.57           ~ 3 0
34 [LDB2002] 584 V* 19 45 02.3030374080 -14 50 52.343915496           ~ 4 0
35 [BD2011] 116 V* 19 45 04.040 -14 44 25.14           ~ 2 0
36 [WMF2013] 40520 Mi* 19 45 04.05 -14 44 25.4           ~ 3 0
37 [LDB2002] 641 LP* 19 45 04.914 -14 44 05.33           ~ 4 0
38 [BD2011] 14 LP* 19 45 05.52 -14 45 05.0           ~ 2 0
39 [BD2011] 117 V* 19 45 05.65 -14 41 39.9           ~ 2 0
40 [WMF2013] 12177 Mi* 19 45 08.22 -14 48 32.1           ~ 2 0
41 [BD2011] 16 Mi* 19 45 08.5528788384 -14 44 22.178923620           ~ 4 0
42 [BD2011] 118 Mi* 19 45 09.87 -14 41 51.7           ~ 2 0
43 [WMF2013] 40623 Mi* 19 45 11.50 -14 44 48.7           ~ 2 0
44 [LDB2002] 749 Mi* 19 45 11.81 -14 41 29.1           ~ 3 0
45 [BD2011] 18 LP* 19 45 11.85 -14 33 18.0           ~ 1 0
46 [WMF2013] 21141 Mi* 19 45 11.92 -14 41 51.3           ~ 3 0
47 [BD2011] 20 Mi* 19 45 12.004 -14 52 43.91           ~ 5 0
48 [BD2011] 120 AB? 19 45 12.400 -14 54 12.98           ~ 2 0
49 [BD2011] 21 LP* 19 45 12.75 -14 47 32.2           ~ 2 0
50 [BD2011] 22 LP* 19 45 15.681 -14 37 28.54           ~ 2 0
51 [LDB2002] 790 V* 19 45 18.10 -14 49 05.5           ~ 2 0
52 [BD2011] 121 AB* 19 45 18.99 -14 35 02.3       19.23   MIIIev 2 0
53 [BD2011] 122 V* 19 45 22.09 -14 45 44.1           ~ 1 0
54 [BD2011] 24 LP* 19 45 25.269 -14 43 11.28           ~ 2 0
55 [LDB2002] 837 LP* 19 45 27.620 -14 55 51.61           ~ 3 0
56 [BD2011] 123 AB? 19 45 27.620 -14 44 17.57           ~ 2 0
57 [LDB2002] 852 V* 19 45 32.263 -14 44 10.23           ~ 3 0
58 [BD2011] 27 LP* 19 45 32.64 -14 51 17.3           ~ 1 0
59 2MASS J19453301-1452227 AB? 19 45 33.016 -14 52 22.76           ~ 2 0
60 [BD2011] 28 LP* 19 45 37.13 -14 47 32.4           ~ 1 0
61 [BD2011] 29 LP* 19 45 42.210 -14 46 50.77           ~ 2 0
62 [LDB2002] 882 V* 19 45 47.864 -14 41 32.31           ~ 3 0
63 [BD2011] 126 C* 19 45 57.3358358304 -14 38 17.532168792       20.41   C6.5v 3 0
64 [BD2011] 127 V* 19 45 59.52 -14 42 10.2           ~ 1 0
65 [BD2011] 128 V* 19 46 00.40 -14 36 57.7           ~ 1 0
66 [LDB2002] 896 V* 19 46 04.753 -14 41 40.57           ~ 3 0
67 [LDB2002] 898 V* 19 46 05.442 -14 50 34.42           ~ 3 0
68 [LDB2002] 899 V* 19 46 07.859 -14 53 58.33           ~ 3 0
69 [BD2011] 32 LP* 19 46 28.94 -14 45 54.9           ~ 1 0
70 [BD2011] 130 V* 19 46 34.44 -14 44 44.5           ~ 1 0
71 [BD2011] 33 LP* 19 46 44.24 -14 42 59.3           ~ 1 0
72 NAME Galactic Bulge reg ~ ~           ~ 4794 0
73 NAME Local Group GrG ~ ~           ~ 9325 0

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