2019MNRAS.487..782L

Query : 2019MNRAS.487..782L

2019MNRAS.487..782L - Mon. Not. R. Astron. Soc., 487, 782-800 (2019/July-3)

Period spacings of γ Doradus pulsators in the Kepler field: Rossby and gravity modes in 82 stars.

LI G., VAN REETH T., BEDDING T.R., MURPHY S.J. and ANTOCI V.

Abstract (from CDS):

Rossby modes are the oscillations in a rotating fluid, whose restoring force is the Coriolis force. They provide an additional diagnostic to understand the rotation of stars, which complicates asteroseismic modelling. We report 82 γ Doradus stars for which clear period spacing patterns of both gravity and Rossby modes have been detected. The period spacings of both show a quasi-linear relation with the pulsation period, but the slope is negative for the gravity modes and positive for the Rossby modes. Most Rossby modes have k = -2, m = -1. For only one star, a series of k = -1, m = -1 modes is seen. For each pattern, the mean pulsation period, the mean period spacing, and the slope are measured. We find that the slope correlates with the mean period for Rossby mode patterns. The traditional approximation of rotation is used to measure the near-core rotation rate, assuming the star rotates rigidly. We report the near-core rotation rates, the asymptotic period spacings, and the radial orders of excited modes of these 82 main-sequence stars. The near-core rotation rates lie between 0.6 and 2.3 d–1. Six stars show surface rotation modulations, among which only KIC 3341457 shows differential rotation, whilst the other five stars have uniform rotations. The radial orders of excited modes show different distributions for the dipole and quadrupole gravity modes versus the Rossby modes.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: oscillations - stars: rotation - stars: variables

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 84

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Number of rows : 84
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 2MASS J18465745+4316153 gD* 18 46 57.4608655344 +43 16 15.261625956           ~ 18 0
2 TYC 3126-1059-1 gD* 18 47 49.7186229264 +42 26 27.552832692   11.61 11.15     F1V 11 0
3 TYC 3119-1304-1 * 18 59 38.2262986704 +38 43 20.598033144   11.27 10.82     ~ 10 0
4 2MASS J19023916+4422462 gD* 19 02 39.1671743472 +44 22 46.203774924           ~ 10 0
5 2MASS J19044714+3932077 gD* 19 04 47.1465077496 +39 32 07.758182760           F1V 6 0
6 TYC 3549-2766-1 gD* 19 05 53.5806685440 +49 35 54.142171224   11.70 11.23     ~ 12 0
7 TYC 3133-697-1 gD* 19 11 03.5808938616 +43 13 07.879464696   11.81 11.57     F2II 15 0
8 BD+38 3468 gD* 19 11 29.3017261968 +39 04 42.980540016   10.28 9.87     F2Vs 15 0
9 TYC 3550-369-1 gD* 19 11 29.4137959896 +50 14 29.689592532   11.82 11.72     F1V 24 0
10 TYC 3542-291-1 Pu* 19 14 04.5166666008 +45 39 09.016228116   12.26 11.82     F2IV 16 0
11 TYC 3129-651-1 gD* 19 16 34.1906588472 +43 01 26.681638368   11.80 11.68     F2V 14 0
12 2MASS J19171183+4946111 gD* 19 17 11.8464186336 +49 46 11.166948516           F2V 6 0
13 2MASS J19171780+5102520 gD* 19 17 17.8131742272 +51 02 51.943068492           F1V 11 0
14 TYC 3134-1158-1 Er* 19 23 33.3122029575 +37 59 00.564770971   11.91 11.74     ~ 17 0
15 TYC 3547-1602-1 gD* 19 23 58.6006651392 +48 12 18.220216572   12.15 11.49     F1V 9 0
16 2MASS J19250578+3827444 dS* 19 25 05.7825104256 +38 27 44.312683140           F0IV 17 0
17 2MASS J19250853+3920163 * 19 25 08.5255094112 +39 20 16.304554212           ~ 5 0
18 BD+37 3452 ** 19 25 17.676792 +37 49 25.21128   10.500 10.160 10.064   F0 8 0
19 2MASS J19273740+3832280 gD* 19 27 37.4139758712 +38 32 28.044167820           F5V 6 0
20 UCAC4 655-073781 ** 19 29 00.910872 +40 57 42.78816   12.97 12.53 12.52   F2V 6 0
21 BD+38 3623 gD* 19 30 35.7783151344 +38 35 16.641418560   10.28 9.91     F1V 23 0
22 TYC 3139-428-1 gD* 19 31 03.4961644056 +40 56 13.936587792   12.25 11.85     F1V 19 0
23 2MASS J19314222+3823338 gD* 19 31 42.2209411128 +38 23 33.856491732           F1V 10 0
24 2MASS J19314929+3834506 gD* 19 31 49.2927647712 +38 34 50.518144488           ~ 6 0
25 TYC 3139-2397-1 gD* 19 32 16.2408855048 +39 41 00.374841996   11.81 11.33     F1V 9 0
26 2MASS J19322535+4618001 gD* 19 32 25.3406593080 +46 18 00.063145908           F1V 7 0
27 2MASS J19331688+4207232 gD* 19 33 16.8728009904 +42 07 23.206536084           ~ 8 0
28 2MASS J19334666+4232404 gD* 19 33 46.6684496688 +42 32 40.452194184           F2IV 9 0
29 KOI-6656 gD* 19 34 25.5502443096 +41 18 22.594580280   14.294 13.799 13.713   ~ 9 0
30 2MASS J19352012+4139417 * 19 35 20.1229010904 +41 39 41.713969104           ~ 7 0
31 2MASS J19353155+3956307 gD* 19 35 31.5513944544 +39 56 30.716445264           ~ 7 0
32 Cl* NGC 6811 SAN 79 gD* 19 36 48.8652658467 +46 14 29.421920064   13.76 13.386     F1V 17 0
33 Cl* NGC 6811 SAN 91 gD* 19 36 55.9904445694 +46 15 18.373175687   13.55 13.118     ~ 20 0
34 TYC 3564-16-1 Pu* 19 37 03.2104066656 +50 30 20.417184432   10.64 10.23     ~ 25 0
35 2MASS J19373857+4629125 gD* 19 37 38.5729801473 +46 29 12.682361256           ~ 18 0
36 TYC 3135-485-1 gD* 19 38 38.5302034848 +39 08 25.189248228   11.55 11.19     ~ 10 0
37 TYC 3147-1914-1 gD* 19 38 56.1914582856 +43 09 47.646782820   12.32 12.46     ~ 11 0
38 2MASS J19393853+4100194 gD* 19 39 38.5306494384 +41 00 19.436591088           F1V 8 0
39 TYC 3139-1185-1 gD* 19 39 41.6946262728 +39 48 04.560511176   11.61 11.29     F1V 13 0
40 BD+44 3210 Pu* 19 40 47.6250694104 +44 20 11.860432548   11.31 11.00     G0 21 0
41 UCAC4 646-074253 gD* 19 42 39.5617513584 +39 05 18.235007916   14.11 13.66 13.61   ~ 4 0
42 TYC 3140-1590-1 gD* 19 42 43.5450213000 +40 15 00.654172164   11.98 11.56     ~ 15 0
43 TYC 3148-1420-1 gD* 19 43 14.9981770104 +43 17 51.741785076   12.80 12.77     F2V 7 0
44 TYC 3136-615-1 gD* 19 43 24.2992606176 +38 59 46.518187812   11.53 11.39     ~ 7 0
45 UCAC4 689-070739 Er* 19 43 58.3543467168 +47 38 11.746310496   13.286 12.925 12.857   ~ 5 0
46 UCAC4 649-074627 gD* 19 44 27.7219811712 +39 46 04.742504436   13.93 13.67 13.60 13.16 ~ 4 0
47 TYC 3136-1444-1 gD* 19 44 32.0212608000 +39 08 43.223518968   13.09 12.56     ~ 7 0
48 2MASS J19445629+4056313 dS* 19 44 56.2972334208 +40 56 31.353647604           ~ 10 0
49 2MASS J19445700+4056297 dS* 19 44 57.0071893848 +40 56 29.849278128           A5V 6 0
50 UCAC4 655-077995 gD* 19 44 57.2238034248 +40 56 35.121271128       13.46   ~ 5 0
51 TYC 3557-1023-1 gD* 19 45 24.0389158536 +46 52 19.571243124   10.40 10.11     ~ 12 0
52 TYC 3136-898-1 gD* 19 45 27.3227730840 +39 08 08.001595644   11.77 11.25     ~ 6 0
53 TYC 3569-1999-1 gD* 19 45 30.1843891728 +51 29 49.423079220   11.50 11.09     ~ 8 0
54 TYC 3144-787-1 gD* 19 45 51.3642186456 +41 37 53.924474532   11.35 11.15     F1V 14 0
55 HD 225808 gD* 19 47 12.5075196816 +40 28 02.432697240   11.04 10.71     F2V 17 0
56 UCAC4 695-070230 gD* 19 47 50.7442626192 +48 58 21.098232156   13.64 13.21 13.13 12.42 ~ 4 0
57 UCAC4 704-066642 gD* 19 48 01.2604619040 +50 46 33.309702012   13.000 12.888 12.884   ~ 6 0
58 2MASS J19480764+4241006 gD* 19 48 07.6483416912 +42 41 00.657717324           ~ 9 0
59 TYC 3140-120-1 gD* 19 48 10.5358224168 +39 56 32.368474644   12.81 12.09     ~ 7 0
60 2MASS J19483342+4050239 gD* 19 48 33.4221989304 +40 50 23.928007704           ~ 8 0
61 KOI-3917 * 19 48 33.5740106256 +49 22 53.730726276           ~ 11 0
62 TYC 3565-472-1 Er* 19 48 40.7495174208 +49 25 07.724861364   12.22 11.67     ~ 5 0
63 2MASS J19484883+4415555 gD* 19 48 48.8290740816 +44 15 55.582676244           F1V 8 0
64 BD+45 2978 gD* 19 49 21.8525440152 +45 56 03.865558668   9.56 9.21     F2V 18 0
65 2MASS J19493257+3939477 gD* 19 49 32.5766559816 +39 39 47.738000016           F0IV 8 0
66 TYC 3557-200-1 gD* 19 49 34.5542468208 +46 04 20.860773708   13.74 11.83     ~ 18 0
67 2MASS J19493877+4957418 gD* 19 49 38.7799420152 +49 57 41.798822760           ~ 9 0
68 2MASS J19495377+4931115 Ro* 19 49 53.7729193272 +49 31 11.499682764           ~ 8 0
69 TYC 3141-1061-1 gD* 19 50 31.6350680040 +39 56 34.083139992   12.79 12.36     ~ 5 0
70 2MASS J19511439+4308369 * 19 51 14.3918055984 +43 08 36.900304548           F1V 8 0
71 2MASS J19515859+4513592 gD* 19 51 58.5868295640 +45 13 59.247929424           F2IV 8 0
72 2MASS J19520841+4112081 gD* 19 52 08.4179469048 +41 12 08.199479808           F0IV 5 0
73 2MASS J19524679+3952109 gD* 19 52 46.7940352488 +39 52 10.917704820           ~ 11 0
74 2MASS J19530265+4730226 gD* 19 53 02.6548697112 +47 30 22.651803180           F2V 5 0
75 2MASS J19542635+4009021 gD* 19 54 26.3620045392 +40 09 02.211724080           ~ 7 0
76 2MASS J19544900+4148135 gD* 19 54 48.9986085624 +41 48 13.570741512           ~ 18 0
77 UCAC4 653-082798 gD* 19 54 59.2997880960 +40 35 52.162978560   13.97 13.46 13.22 12.70 ~ 7 0
78 2MASS J19550433+4217512 gD* 19 55 04.3329295536 +42 17 51.329489532           ~ 7 0
79 UCAC4 654-080529 dS* 19 55 08.8218813192 +40 39 17.523851112       12.68   ~ 5 0
80 UCAC4 691-071244 gD* 19 55 33.6186265152 +48 08 31.970771196   13.371 12.899 12.886   ~ 6 0
81 UCAC4 668-083339 gD* 19 56 44.3290431888 +43 28 53.369500404   14.16 13.62 13.55 13.27 ~ 5 0
82 UCAC4 671-082465 gD* 20 03 22.0207548902 +44 06 23.720184842 14.309 14.25 13.827 13.542 13.283 ~ 12 0
83 2MASS J20033305+4412065 gD* 20 03 33.0554613116 +44 12 06.440880713   14.3060 13.8637     F1V 20 0
84 UCAC4 671-082899 gD* 20 04 26.7751914519 +44 03 50.417327381 14.285 14.278 13.844 13.554 13.281 F5Vaw 16 0

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