2002A&A...384..513P


Query : 2002A&A...384..513P

2002A&A...384..513P - Astronomy and Astrophysics, volume 384, 513-520 (2002/3-3)

The multiperiodicity of the γ Doradus stars HD 224945 and HD 224638 as detected from a multisite campaign.

PORETTI E., KOEN C., BOSSI M., RODRIGUEZ E., MARTIN S., KRISCIUNAS K., AKAN M.C., CROWE R., WILCOX M., IBANOGLU C. and EVREN S.

Abstract (from CDS):

We discuss new photometric data collected on the γ Dor variables HD 224945 and HD 224638. Multiperiodicity was detected in both stars, thanks to the clear spectral window of a multisite campaign that involved five observatories. HD 224945 shows the shortest period among the γ Dor stars, i.e., 0.3330d. The pulsation behaviour is very different: HD 224945 displays a set of frequencies spread over an interval much larger than that of HD 224638. We clearly found evidence for amplitude variations in the excited modes by comparing data from different years. HD 224945 and HD 224638 are among the best examples of γ Dor stars that show multimode pulsations, which make them very interesting from an asteroseismological point of view.

Abstract Copyright:

Journal keyword(s): methods: data analysis - stars: oscillations - stars: variables: general - techniques: photometric

Simbad objects: 10

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Number of rows : 10
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* BU Psc gD* 00 02 02.6171019192 -02 45 58.215204612   7.20 6.92     A9V/IV 53 0
2 HD 225086 * 00 03 20.4864623208 -04 08 44.716705404   8.51 8.11 8.97   F0V 27 0
3 HD 200 PM* 00 06 46.9724268864 -04 21 00.097981452   8.76 8.21     F7/8V 28 0
4 * gam Dor gD* 04 16 01.5866224848 -51 29 11.932714356   4.55 4.20     F1V 298 0
5 * 9 Aur gD* 05 06 40.6306032888 +51 35 51.798998724       4.8   F2V 184 0
6 * I Pup a2* 07 12 33.6249752 -46 45 33.494912 4.80 4.81 4.49 4.17 3.95 F3VFe-1.0 133 0
7 V* V2118 Oph gD* 18 01 33.2032926288 +11 17 08.732552604   7.37 7.01     F2IV-V 65 0
8 V* V372 Peg gD* 21 47 04.7602608072 +17 11 38.546127456   6.507 6.174     F3V 63 0
9 V* BH Psc dS* 23 59 31.3161004512 -02 50 37.633941672   7.43 7.12     F0/2IV 44 0
10 V* BT Psc gD* 23 59 35.0408156736 -01 50 59.712596160   7.78 7.48     F2-F3IV 48 0

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2022.08.13-20:51:40

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