2009A&A...499..967C


Query : 2009A&A...499..967C

2009A&A...499..967C - Astronomy and Astrophysics, volume 499, 967-982 (2009/6-1)

Long-term photometric monitoring with the Mercator telescope. Frequencies and multicolour amplitudes of γ Doradus stars.

CUYPERS J., AERTS C., DE CAT P., DE RIDDER J., GOOSSENS K., SCHOENAERS C., UYTTERHOEVEN K., ACKE B., DAVIGNON G., DEBOSSCHER J., DECIN L., DE MEESTER W., DEROO P., DRUMMOND R., KOLENBERG K., LEFEVER K., RASKIN G., REYNIERS M., SAESEN S., VANDENBUSSCHE B., VAN MALDEREN R., VERHOELST T., VAN WINCKEL H. and WAELKENS C.

Abstract (from CDS):

γ Dor stars are excellent targets for asteroseismology since the gravity modes present in these stars probe the deep stellar interiors. Mode identification will improve the knowledge of these stars considerably. A selected group of γ Dor stars and some candidates were observed with the Mercator telescope to find and/or confirm the periodicities in the light variations and to derive reliable amplitude ratios in different pass bands. A frequency analysis was performed on all new data obtained in the Geneva photometric system. In order to have more reliable and accurate frequencies, the new data were combined with similar data from the literature and with Hipparcos observations. A set of frequencies that minimized the residuals in a harmonic fit was searched for while allowing means and amplitudes to vary from one observation set to another. Frequencies and amplitudes in the photometric passbands of the Geneva system are given for 21 γ Dor stars. We report the discovery of HD 74504 as a newly found γ Dor star. Our study provides the first extensive multicolour database for the understanding of gravity modes in F-type stars.

Abstract Copyright:

Journal keyword(s): stars: variables: general - stars: oscillations - stars: individual: γ Doradus - techniques: photometric

VizieR on-line data: <Available at CDS (J/A+A/499/967): table1.dat mags.dat freq.dat>

Simbad objects: 21

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Number of rows : 21
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 V* V1006 Cas gD* 00 07 37.4753424264 +53 31 35.554692684   8.693 8.33     F0 30 0
2 V* FM Psc gD* 00 31 49.7508643944 +04 50 46.181449284   8.31 7.98     F0V 25 0
3 V* V1012 Cas gD* 01 12 53.8932461664 +51 36 08.475465708   7.62 7.277     F2V 44 0
4 HD 23874 gD* 03 48 51.5693667072 +11 42 31.733709408   8.597 8.21     F1+F8: 38 0
5 V* V553 Aur gD* 06 44 11.7491335008 +36 59 38.401739880   7.79 7.47     F0 28 0
6 V* DO Lyn gD* 07 45 42.3382459896 +39 32 48.998050476   7.45 7.13     F0 41 0
7 V* EF Lyn gD* 08 19 31.7615909208 +35 02 44.407942080   7.48 7.17     A5 27 0
8 HD 74504 Pu* 08 46 20.6718984120 +50 01 22.558230300   9.12 8.84     F0 16 0
9 HD 86358 SB* 09 58 26.0389184232 +27 45 32.396952132 6.790 6.800 6.460     F2V 56 0
10 V* NY UMa gD* 11 32 12.8817271440 +38 55 32.986101792   8.28 7.99     Am 47 0
11 V* NZ UMa gD* 12 08 26.0768981232 +48 58 06.586452624   8.05 7.758     F0III 30 0
12 V* DD CVn gD* 12 24 56.9347475952 +42 51 17.137097928   7.51 7.14     F2V 64 0
13 HD 113867 gD* 13 06 22.7100385896 +22 16 47.625214980   7.115 6.825     F4VmA6 33 0
14 V* V2502 Oph gD* 18 17 04.8404548584 +01 00 20.632225968   6.91 6.61     F2V 106 0
15 V* V1709 Aql gD* 18 54 54.3634752576 +01 07 17.706958896   7.714 7.36     F2V 41 0
16 * 43 Cyg gD* 20 27 02.2674936096 +49 23 00.104394552   6.024 5.715     F0V: 56 0
17 V* NZ Peg RR? 21 39 01.1887179552 +20 15 55.623301164   6.065 5.762     F1Vnn 68 0
18 V* V372 Peg gD* 21 47 04.7602608072 +17 11 38.546127456   6.507 6.174     F3V 63 0
19 V* PR Peg gD* 22 18 51.2711235288 +04 08 35.270893356   9.46 9.11     A8V 25 0
20 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1058 0
21 V* V418 Peg gD* 23 35 37.5281725056 +14 35 37.170888756   7.72 7.444     A3m 34 0

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2023.01.31-07:49:46

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