2011A&A...530A..35L


Query : 2011A&A...530A..35L

2011A&A...530A..35L - Astronomy and Astrophysics, volume 530A, 35-35 (2011/6-1)

Long-period variables in the CoRoT fields.

LEBZELTER T.

Abstract (from CDS):

We searched the first set of data released by the CoRoT mission for red stars showing long-period variability (LPV). These stars are likely highly evolved stars on the upper giant branch. The high time resolution of the CoRoT data allows us to study the light curves of these variables in unprecedented detail. Light curves of the reddest stars were extracted from the CoRoT public archive. The search for LPV was done by visual inspection. Instrumental artefacts were removed, and the final light curves were inspected for signs of variability on time scales of hours to a few days. Such abrupt and irregular light curve changes have been reported in the literature to occur in these stars, but their origin is not yet understood. We detected 52 LPV candidates in four CoRoT fields, most of them previously unknown. No signs of any short-time light changes on time scales between 20-min and a few days and an amplitude exceeding a few mmag could be detected. We conclude that if these short-time variations are physical reality, they must be quite rare events, and we derive a 95% confidence upper limit of 0.15 events per star per year. Any deviations from a perfectly smooth long-time variation are occurring on time scales longer than approximately 10 days.

Abstract Copyright:

Journal keyword(s): stars: AGB and post-AGB - stars: variables: general

Simbad objects: 52

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Number of rows : 52
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Gal Anticenter reg 05 46 +28.9           ~ 776 0
2 * alf Ori s*r 05 55 10.30536 +07 24 25.4304 4.38 2.27 0.42 -1.17 -2.45 M1-M2Ia-Iab 1524 0
3 DJM 27 C* 06 42 48.3399489509 +00 54 36.085576744   17.4 15.8   11.48 C 6 0
4 DJM 36 C* 06 45 00.249 -00 57 05.64   15.48 14.128 13.07 11.39 C 6 0
5 2MASS J06493208-0516136 LP* 06 49 32.0766328244 -05 16 13.649950803   18.85 16.37 14.79 12.52 ~ 2 0
6 IRAS 06480-0305 LP* 06 50 31.6005634878 -03 08 43.338740984   18.39 16.04 14.47 11.65 M8 4 0
7 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12299 0
8 2MASS J18381634+0735467 LP* 18 38 16.3421629721 +07 35 46.647864367   16.61 14.88 13.69 11.52 ~ 1 0
9 2MASS J18383599+0715243 LP* 18 38 35.9996508573 +07 15 24.424995217   17.41 15.65 14.40 11.97 ~ 1 0
10 IRAS 18368+0702 LP* 18 39 16.0148372313 +07 05 11.277737169   17.19 15.23 13.78   ~ 1 0
11 2MASS J18391831+0706550 LP* 18 39 18.3161769322 +07 06 55.104438960   17.58 15.65 14.34 12.04 ~ 1 0
12 IRAS 18372+0618 LP* 18 39 40.6656071656 +06 20 57.825602122   17.79 15.51 13.77 11.08 ~ 2 0
13 2MASS J18402886+0650135 LP* 18 40 28.8697702888 +06 50 13.625138167   18.39 16.39 15.05 12.72 ~ 1 0
14 V* V900 Oph Mi* 18 41 11.4456560159 +07 55 59.866964866     14.88     ~ 6 0
15 2MASS J18411164+0615384 LP* 18 41 11.6444122865 +06 15 38.427041448   18.55 16.40 15.04 13.17 ~ 1 0
16 IRAS 18388+0710 Mi* 18 41 14.0236804778 +07 13 49.513243107   18.55 16.48 14.86 12.08 ~ 3 0
17 2MASS J18411934+0611476 LP* 18 41 19.3450420792 +06 11 47.584872987   18.31 16.03 14.59 12.57 ~ 1 0
18 2MASS J18411988+0615408 LP* 18 41 19.8942863657 +06 15 40.887397511   18.27 15.98 14.55 12.52 ~ 1 0
19 2MASS J18412173+0552275 LP* 18 41 21.7385661807 +05 52 27.459444113   18.98 16.55 15.03 13.04 ~ 1 0
20 2MASS J18412301+0616277 LP* 18 41 23.0134696522 +06 16 27.727293145   19.11 16.92 15.42 12.91 ~ 1 0
21 NSVS 13906861 LP* 18 41 28.6565609426 +07 55 12.359814148   16.95 14.85 13.55   ~ 2 0
22 IRAS 18392+0720 LP* 18 41 42.6374601460 +07 23 50.976603410   18.82 16.60 14.96 12.27 ~ 1 0
23 2MASS J18414596+0617415 LP* 18 41 45.9672436269 +06 17 41.583676731   18.57 17.08 15.85 13.28 ~ 1 0
24 2MASS J18414689+0648434 LP* 18 41 46.8945359995 +06 48 43.393101747   19.15 17.06 15.68 13.25 ~ 1 0
25 2MASS J18415029+0707504 LP* 18 41 50.3019013722 +07 07 50.506518715   18.46 16.33 14.90 12.55 ~ 1 0
26 2MASS J18420389+0553230 LP* 18 42 03.8872538573 +05 53 23.103205445   19.38 17.30 15.67 12.84 ~ 2 0
27 NSVS 13907706 LP* 18 42 04.8089347608 +08 00 15.137425962   19.27 17.06 15.43 12.65 ~ 1 0
28 IRAS 18398+0715 LP* 18 42 16.8428807950 +07 18 37.151214237   20.28 17.70 15.78 12.85 ~ 1 0
29 NSVS 13908080 LP* 18 42 20.9359948558 +07 27 58.270714305   18.28 16.05 14.65 12.56 ~ 2 0
30 2MASS J18422160+0550443 LP* 18 42 21.5974626396 +05 50 44.442107277   19.40 16.84 15.24 13.16 ~ 1 0
31 2MASS J18422598+0611552 LP* 18 42 25.9909381055 +06 11 55.286632584   19.33 17.07 15.61 13.51 ~ 1 0
32 IRAS 18402+0521 LP* 18 42 41.3083511397 +05 24 39.470311137   19.53 17.02 15.21 12.37 ~ 1 0
33 CoRoT 105833352 Mi* 18 42 44.8712954895 +05 48 15.713076260   17.47 15.14 13.60 11.27 ~ 3 0
34 2MASS J18424922+0615461 LP* 18 42 49.2247496892 +06 15 46.229827688   18.02 15.82 14.42 12.43 ~ 1 0
35 2MASS J18425149+0521352 LP* 18 42 51.4941665991 +05 21 35.244687765   18.73 16.39 14.88 12.75 ~ 1 0
36 2MASS J18430258+0627361 LP* 18 43 02.5802887127 +06 27 36.259943754   19.52 17.04 15.36 12.73 ~ 1 0
37 2MASS J18430271+0648025 LP* 18 43 02.7173154138 +06 48 02.533508699   18.46 16.26 14.85 12.81 ~ 1 0
38 2MASS J18431624+0603510 LP* 18 43 16.2462771247 +06 03 51.039952970   19.86 17.14 15.51 13.35 ~ 1 0
39 2MASS J18432146+0624330 LP* 18 43 21.4652526648 +06 24 33.068210775   19.37 16.91 15.33 12.96 ~ 1 0
40 2MASS J18432908+0700376 LP* 18 43 29.0832192039 +07 00 37.732239676   19.83 17.28 15.49 12.66 ~ 1 0
41 2MASS J18434079+0712134 LP* 18 43 40.7933371640 +07 12 13.632121108   19.46 17.00 15.39 13.09 ~ 1 0
42 2MASS J18434841+0707225 LP* 18 43 48.4129130164 +07 07 22.557849333   18.74 16.19 14.44 11.68 ~ 3 0
43 IRAS 18415+0528 Mi* 18 44 01.0909780888 +05 31 20.991039372   18.96 16.49 14.54 11.67 ~ 2 0
44 2MASS J18442149+0600298 LP* 18 44 21.4950652229 +06 00 29.860865523   19.32 16.83 15.22 12.63 ~ 1 0
45 2MASS J18442829+0551237 LP* 18 44 28.2971027683 +05 51 23.781059107   18.62 16.210 14.69 12.42 ~ 3 0
46 2MASS J18442910+0601475 LP* 18 44 29.0969585007 +06 01 47.663659200   19.63 17.03 15.30 12.59 ~ 1 0
47 IRAS 18420+0555 LP* 18 44 32.1986428958 +05 58 59.260940012   17.24 14.87 13.35 11.01 ~ 1 0
48 V* FW Aql Mi* 19 26 33.8411216157 -00 02 24.658469323     12.15   9.94 ~ 6 0
49 2MASS J19263514+0057306 LP* 19 26 35.1316707829 +00 57 30.810538731   16.35 14.87 13.98 12.84 ~ 1 0
50 NSVS 14012703 LP* 19 26 50.1641800274 +00 34 52.038045091   15.96 14.07 12.99 11.56 ~ 1 0
51 2MASS J19273381-0021320 LP* 19 27 33.8101386038 -00 21 31.990566708   16.85 15.32 14.35 13.34 ~ 1 0
52 NAME Galactic Bulge reg ~ ~           ~ 3622 0

    Equat.    Gal    SGal    Ecl

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2021.07.25-13:47:43

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