2010MNRAS.409.1470O


Query : 2010MNRAS.409.1470O

2010MNRAS.409.1470O - Mon. Not. R. Astron. Soc., 409, 1470-1486 (2010/December-3)

First Kepler results on compact pulsators – I. Survey target selection and the first pulsators.

OSTENSEN R.H., SILVOTTI R., CHARPINET S., OREIRO R., HANDLER G., GREEN E.M., BLOEMEN S., HEBER U., GANSICKE B.T., MARSH T.R., KURTZ D.W., TELTING J.H., REED M.D., KAWALER S.D., AERTS C., RODRIGUEZ-LOPEZ C., VUCKOVIC M., OTTOSEN T.A., LIIMETS T., QUINT A.C., VAN GROOTEL V., RANDALL S.K., GILLILAND R.L., KJELDSEN H., CHRISTENSEN-DALSGAARD J., BORUCKI W.J., KOCH D. and QUINTANA E.V.

Abstract (from CDS):

We present results from the first two quarters of a survey to search for pulsations in compact stellar objects with the Kepler spacecraft. The survey sample and the various methods applied in its compilation are described, and spectroscopic observations are presented to separate the objects into accurate classes. From the Kepler photometry we clearly identify nine compact pulsators and a number of interesting binary stars. Of the pulsators, one shows the strong, rapid pulsations typical of a V361 Hya-type sdB variable (sdBV); seven show long-period pulsation characteristics of V1093 Her-type sdBVs; and one shows low-amplitude pulsations with both short and long periods. We derive effective temperatures and surface gravities for all the subdwarf B stars in the sample and demonstrate that below the boundary region where hybrid sdB pulsators are found, all our targets are pulsating. For the stars hotter than this boundary temperature a low fraction of strong pulsators (<10 per cent) is confirmed. Interestingly, the short-period pulsator also shows a low-amplitude mode in the long-period region, and several of the V1093 Her pulsators show low-amplitude modes in the short-period region, indicating that hybrid behaviour may be common in these stars, also outside the boundary temperature region where hybrid pulsators have hitherto been found.

Abstract Copyright: 2010 The Authors. Journal compilation2010 RAS

Journal keyword(s): surveys - binaries: close - stars: oscillations - subdwarfs - white dwarfs

VizieR on-line data: <Available at CDS (J/MNRAS/409/1470): table1.dat>

Simbad objects: 75

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Number of rows : 75
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* ZZ Cet WD* 01 36 13.6153974672 -11 20 32.632874601   14.328 14.16 14.4   DA4.0 274 0
2 RAT J0455+1305 HS* 04 55 15.2317052592 +13 05 29.689559052   17.6   17.3   sdB 12 0
3 V* DW Lyn HS* 07 07 09.7960158264 +60 38 50.159268348   14.7   15.34   sdB 51 1
4 V* HK Cnc HS* 08 59 02.6445309720 +11 56 27.841260300   13.47 13.480     sdB3VIIHe0 31 0
5 PG 1325+102 HS* 13 27 48.5600155368 +09 54 51.049107756   13.73 13.98 14.29   sdBO 54 1
6 V* NY Vir HS* 13 38 48.1466908176 -02 01 49.207286748   13.43 13.66 13.75   sdB1VIIHe1 208 1
7 V* V361 Hya ** 14 05 33.00 -27 01 34.1   15.45 15.26 15.16   sdB+ 114 0
8 PG 1605+072 HS* 16 08 03.6872637792 +07 04 28.748468964   12.53 12.83 13.18   sdB0.2VIHe3 125 0
9 PG 1716+426 HS* 17 18 03.8584522800 +42 34 12.562847292   13.69 13.97     sdB2VIIHe3 104 0
10 V* LS Dra HS* 18 24 52.4115107856 +57 47 23.528193612           sdOB 18 0
11 2MASS J18424248+4404055 Er* 18 42 42.4919250048 +44 04 05.580458256           sdB 10 0
12 GALEX J184743.6+461625 HS* 18 47 43.5955553304 +46 16 26.739613128           sdB 5 0
13 2MASS J18501686+4358284 Pu* 18 50 16.8586159344 +43 58 28.668956412           B 4 0
14 KIC 6669882 WD* 18 55 46.0435502688 +42 07 04.324188144           DA 6 0
15 2MASS J18560707+4319192 HS* 18 56 07.0408028424 +43 19 19.273788552           sdB 17 0
16 ATO J284.0336+45.6277 CV* 18 56 08.0688168336 +45 37 40.144446012           ~ 11 0
17 SDSS J185649.54+403251.2 HS* 18 56 49.5478777560 +40 32 51.216123876           sdOB 5 0
18 KIC 9139775 WD* 18 57 43.7360371824 +45 32 19.119104844           DA 5 0
19 FBS 1858+411 HS* 19 00 27.7555492368 +41 15 04.358559564   14.49 14.09     sdB 12 0
20 SDSS J190125.76+385232.8 HS* 19 01 25.7667729024 +38 52 32.759310216           sdB 6 0
21 UCAC4 702-062583 Pu* 19 01 35.2092630168 +50 23 06.375999012   13.40 13.32 13.68   B3V 5 0
22 GALEX J190221.9+485052 HS* 19 02 21.9425643552 +48 50 52.195229160   17.1   17.1   sdB+dM 28 0
23 UCAC4 658-070326 HS* 19 02 49.9649497656 +41 34 58.055577024   13.786 14.086 14.264   sdOB 7 0
24 SDSS J190317.64+392314.4 HS* 19 03 17.6401266936 +39 23 14.453128968           sdB 5 0
25 KIC 2692915 WD* 19 03 22.6884512472 +37 55 31.179267984           DO 2 0
26 SDSS J190324.90+384124.0 HS* 19 03 24.9040051296 +38 41 23.988952608           sdOBHe 7 0
27 2MASS J19033701+3836126 HS* 19 03 37.0267191120 +38 36 12.604186980           sdB 24 0
28 2MASS J19050099+4101534 Pu* 19 05 00.9951841344 +41 01 53.493046320           B2.5V 6 0
29 SDSS J190522.52+383133.2 WD* 19 05 22.5169385064 +38 31 33.172868532           DA 6 0
30 BD+42 3250 HS* 19 07 40.5353192280 +42 18 22.016219580   10.40 10.656     sdB0/1 24 0
31 2MASS J19090714+3756143 HS* 19 09 07.1451475032 +37 56 14.224028784           sdB 38 0
32 2MASS J19100018+4640244 HS* 19 10 00.1843964976 +46 40 24.503781720           sdO+F/G 5 0
33 GALEX J191023.7+470944 Pu* 19 10 23.7195186960 +47 09 44.176514976   10.94 10.98     B2V 10 0
34 2MASS J19133572+4302560 HS* 19 13 35.7239745120 +43 02 56.016661200           sdB 6 0
35 2MASS J19150768+4754190 Pu* 19 15 07.6764289728 +47 54 18.924118236           B3V 14 0
36 UCAC4 665-073368 HS* 19 15 18.9156778368 +42 56 13.466322240   14.154 14.611 14.731   sdO 7 0
37 2MASS J19161211+4749154 Er* 19 16 12.1066804632 +47 49 15.393417780           sdB+F/G 13 0
38 PM J19173+4452 WD* 19 17 20.5625489472 +44 52 39.382815396           DA 8 0
39 2MASS J19175872+4350210 HS* 19 17 58.7190018120 +43 50 20.893198452           sdB 6 0
40 PN A66 61 PN 19 19 10.2027282696 +46 14 51.973821276   17.05 17.39     DAO.57 55 0
41 UCAC4 704-062773 Er* 19 19 18.830904 +50 44 03.69708   15.89 15.92 16.22   DA+dMe 13 0
42 2MASS J19192767+3958392 WD* 19 19 27.6878900856 +39 58 39.465186132           DA3 11 0
43 DSH J1919.5+4445 PN 19 19 30.5039701128 +44 45 42.705010116     15.670     ~ 16 0
44 Cl* NGC 6791 KU B2 HS* 19 20 49.9002045672 +37 41 38.829173388 16.13 17.25 17.475     sdO+F/G 19 0
45 KOI-4118 HS* 19 21 11.0741647800 +47 59 25.220020308           sdB 9 0
46 2MASS J19241081+4459348 CV* 19 24 10.8085608456 +44 59 34.797652800           ~ 18 0
47 2MASS J19245816+4707536 HS* 19 24 58.1497315488 +47 07 53.672050236           sdB 35 0
48 2MASS J19252435+4918562 Pu* 19 25 24.3577448880 +49 18 56.282506776           B 7 0
49 ATO J291.5394+37.3356 HS* 19 26 09.4422931056 +37 20 08.163008556   13.60 13.63 14.05 13.96 sdB+dM 27 0
50 KIC 6862653 WD* 19 26 46.0135812216 +42 19 35.220341064           DB 5 0
51 SDSS J192709.14+381026.3 HS* 19 27 09.1454735328 +38 10 26.393243016   17.2   17.3   sdB 17 0
52 SDSS J192715.88+380808.2 HS* 19 27 15.8823018024 +38 08 08.280985956   16.3   16.9   sdB+dM 23 0
53 2MASS J19285105+4430128 HS* 19 28 51.0521294280 +44 30 12.849884568           sdOB 5 0
54 NAME PN AMU 1 PN 19 31 08.8801090728 +43 24 57.692231064   13.39 13.64 13.83   O(H)3Vz 26 2
55 2MASS J19324533+4834470 Pu* 19 32 45.3323390856 +48 34 46.978603248           F 1 0
56 KIC 8889318 HS* 19 32 50.6276755512 +45 10 23.048698656           sdB 6 0
57 2MASS J19343993+4758117 HS* 19 34 39.9403400856 +47 58 11.532614808           sdB 23 1
58 KIC 9408967 HS* 19 35 12.2744225784 +45 55 41.284770636           sdOBHe 9 0
59 AG+49 1556 Pu* 19 35 38.3614124376 +50 02 35.416026096   10.21 10.30     B7IV 14 0
60 2MASS J19365595+4953125 Pu* 19 36 55.9324295616 +49 53 12.300236520           A 1 0
61 2MASS J19380163+4649446 HS* 19 38 01.6297704072 +46 49 44.408176788           sdOBHe 9 0
62 Kepler-451 HS* 19 38 32.6123816016 +46 03 59.135231952   12.17 12.69 12.46 12.399 sdB+dM 67 0
63 2MASS J19403230+4827235 HS* 19 40 32.3047305672 +48 27 23.541278904           sdB+F/G 7 0
64 KIC 11514682 ** 19 41 12.533160 +49 25 07.09428       15.871   DAB 7 0
65 GALEX J194134.2+490713 HS* 19 41 34.2895090320 +49 07 13.087599276           sdOB 6 0
66 RE J1943+500 WD* 19 43 43.6811875272 +50 04 37.921728648     14.8     DA1.4 45 0
67 TYC 3561-2050-1 dS* 19 44 02.7214460976 +47 21 16.877904588   10.98 11.21     B3V 15 0
68 Kepler-70 HS* 19 45 25.4745687168 +41 05 33.882248544 13.80 14.71 14.87 15.43 15.72 sdB 69 1
69 2MASS J19453319+4714167 Pu* 19 45 33.1913253960 +47 14 16.667013372           B 5 0
70 2MASS J19454809+4739591 WD* 19 45 48.0609016344 +47 39 58.884806736           DO 1 0
71 KPD 1946+4340 HS* 19 47 42.8876526504 +43 47 30.754543092 13.05 14.06 14.23 14.92   sdOB+D 53 0
72 2MASS J19491458+4734460 WD* 19 49 14.5807623120 +47 34 45.906310488           DA 9 0
73 2MASS J19515625+4607507 HS* 19 51 56.2567225944 +46 07 50.702142036           sdOB 7 0
74 V* V391 Peg HS* 22 04 12.1045050096 +26 25 07.819080600   14.41 14.61 15.00   sdB 106 2
75 Balloon 90100001 HS* 23 15 21.4810390968 +29 05 01.433373360   11.90 12.30     sdB 83 0

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2022.10.07-04:00:09

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