2017ApJ...849...38L


Query : 2017ApJ...849...38L

2017ApJ...849...38L - Astrophys. J., 849, 38-38 (2017/November-8)

Convection and overshoot in models of γ Doradus and δ Scuti stars.

LOVEKIN C.C. and GUZIK J.A.

Abstract (from CDS):

We investigate the pulsation properties of stellar models that are representative of δ Scuti and γ Doradus variables. We have calculated a grid of stellar models from 1.2 to 2.2 M☉, including the effects of both rotation and convective overshoot using MESA, and we investigate the pulsation properties of these models using GYRE. We discuss the observable patterns in the frequency spacing for p modes and the period spacings for g modes. Using the observable patterns in the g mode period spacings, it may be possible to observationally constrain the convective overshoot and rotation of a model. We also calculate the pulsation constant (Q) for all models in our grid and investigate the variation with convective overshoot and rotation. The variation in the Q values of the radial modes can be used to place constraints on the convective overshoot and rotation of stars in this region. As a test case, we apply this method to a sample of 22 High-Amplitude δ Scuti stars (HADS) and provide estimates for the convective overshoot of the sample.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): stars: rotation - stars: variables: delta Scuti - stars: variables: general - stars: variables: general

Simbad objects: 22

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Number of rows : 22
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 HD 224852 Pu* 00 01 16.2259232808 -60 36 57.138276060   10.584 10.233 9.75 9.656 A8V 22 0
2 V* V823 Cas V* 00 05 42.3928307472 +63 24 14.191424100   11.74 11.15     ~ 19 0
3 V* RV Ari dS* 02 15 07.5021680088 +18 04 27.917480316   11.78       A 76 0
4 V* V403 Gem dS* 06 44 01.0565832720 +22 44 31.666485912   12.2       ~ 9 0
5 ATO J101.3218+41.3710 dS* 06 45 17.2483953312 +41 22 15.904094700   14.82 14.74     ~ 6 0
6 V* DO CMi dS* 07 12 19.4088562968 +09 21 02.643986160   10.97 10.54     ~ 10 0
7 NSVS 7293918 dS* 07 44 38.6053417200 +29 12 22.759831116   12.62 12.42 12.46 11.70 A5V 8 0
8 V* AI Vel dS* 08 14 05.1459825192 -44 34 32.854644660   6.98 6.70     A9IV/V 192 0
9 V* VZ Cnc dS* 08 40 52.1246716416 +09 49 27.149450016 7.49 7.35 7.18     A9III 194 0
10 V* VX Hya RR* 09 45 46.8525595968 -12 00 14.398202340   10.744 10.485 10.683 10.208 F2-8Ib 93 0
11 ATO J163.2020+41.9097 dS* 10 52 48.4860362568 +41 54 35.332169220   13.69 12.87     ~ 6 0
12 LINEAR 15917033 dS* 15 52 51.3902336376 +06 06 06.061093128   15.8 16.0 15.89   ~ 3 0
13 V* V879 Her SX* 17 31 12.7073554776 +28 03 16.884859860           ~ 8 0
14 V* V703 Sco dS* 17 42 16.8065630352 -32 31 23.639017260   8.18 7.85     A9V 96 0
15 ATO J277.4477+37.7501 dS* 18 29 47.4631618248 +37 45 00.578485368   12.47 12.76     ~ 6 0
16 V* V829 Aql EB* 19 46 57.2819201352 +03 30 28.481921928   10.74 10.06     F5 22 0
17 ASAS J194803+4146.9 dS* 19 48 02.9170078944 +41 46 55.762778244   11.23 10.63   10.223 F6II 19 0
18 TYC 3949-386-1 dS* 20 19 44.9585122560 +58 29 20.036923332   11.38 10.82     ~ 4 0
19 NSVS 3234596 * 20 26 01.7484260640 +59 30 53.490037752   11.61 11.30     ~ 3 0
20 V* V1719 Cyg cC* 21 04 32.9209811688 +50 47 03.276283920   8.41 7.99     F5III 89 0
21 NSVS 3361415 * 21 26 01.1202157344 +64 30 57.440621700   11.70 11.32     ~ 3 0
22 V* BP Peg RR* 21 33 13.5340951800 +22 44 24.306362268   12.20 12.05     A0 71 0

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