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Your search keyword '"Raskin, G."' showing total 8 results
Start Over Author "Raskin, G." Journal monthly notices of the royal astronomical society
8 results on '"Raskin, G."'

1. The discovery of a planetary candidate around the evolved low-massKeplergiant star HD 175370

Author

Hrudková, M., primary, Hatzes, A., additional, Karjalainen, R., additional, Lehmann, H., additional, Hekker, S., additional, Hartmann, M., additional, Tkachenko, A., additional, Prins, S., additional, Van Winckel, H., additional, De Nutte, R., additional, Dumortier, L., additional, Frémat, Y., additional, Hensberge, H., additional, Jorissen, A., additional, Lampens, P., additional, Laverick, M., additional, Lombaert, R., additional, Pápics, P. I., additional, Raskin, G., additional, Sódor, Á., additional, Thoul, A., additional, Van Eck, S., additional, and Waelkens, C., additional

Published
2016
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2. A multisite photometric study of two unusual \u03b2 Cep stars: the magnetic V2052 Oph and the massive rapid rotator V986 Oph

Author

Handler, G., Shobbrook, R. R., Uytterhoeven, K., Briquet, M., Neiner, C., Tshenye, T., Ngwato, B., van Winckel, H., Guggenberger, E., Raskin, G., Rodrxedguez, E., Mazumdar, A., Barban, C., Lorenz, D., Vandenbussche, B., Şahin, T., Medupe, R., Aerts, C., Handler, Shobbrook, R. R., Uytterhoeven, Briquet, Neiner, Tshenye, Ngwato, van Winckel, Guggenberger, Raskin, Rodrxedguez, Mazumdar, Barban, Lorenz, Vandenbussche, Şahin, Medupe, and Aerts

Published
2012

3. The discovery of a planetary candidate around the evolved low-mass Kepler giant star HD 175370.

Author

Hrudková, M., Hatzes, A., Karjalainen, R., Lehmann, H., Hekker, S., Hartmann, M., Tkachenko, A., Prins, S., Van Winckel, H., De Nutte, R., Dumortier, L., Frémat, Y., Hensberge, H., Jorissen, A., Lampens, P., Laverick, M., Lombaert, R., Pápics, P. I., Raskin, G., and Sódor, Á.

Subjects
LOW mass stars, GIANT stars, RADIAL velocity of stars, SPECTROGRAPHS, STELLAR oscillations
Abstract

We report on the discovery of a planetary companion candidate with a minimum mass M sin i = 4.6 ± 1.0 MJupiter orbiting the K2 III giant star HD 175370 (KIC 007940959). This star was a target in our programme to search for planets around a sample of 95 giant stars observed with Kepler. This detection was made possible using precise stellar radial velocity measurements of HD 175370 taken over five years and four months using the coudé echelle spectrograph of the 2-m Alfred Jensch Telescope and the fibre-fed echelle spectrograph High Efficiency and Resolution Mercator Echelle Spectrograph of the 1.2-m Mercator Telescope. Our radial velocity measurements reveal a periodic (349.5 ± 4.5 d) variation with a semi-amplitude K = 133 ± 25 m s-1, superimposed on a long-term trend. A low-mass stellar companion with an orbital period of ~88 yr in a highly eccentric orbit and a planet in a Keplerian orbit with an eccentricity e = 0.22 are the most plausible explanation of the radial velocity variations. However, we cannot exclude the existence of stellar envelope pulsations as a cause for the low-amplitude radial velocity variations and only future continued monitoring of this system may answer this uncertainty. From Kepler photometry, we find that HD 175370 is most likely a low-mass red giant branch or asymptotic giant branch star. [ABSTRACT FROM AUTHOR]

Published
2017
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4. Atmospheric parameters of 169 F-, G-, K- and M-type stars in the Kepler field★

Author

Molenda-Żakowicz, J., primary, Sousa, S. G., additional, Frasca, A., additional, Uytterhoeven, K., additional, Briquet, M., additional, Van Winckel, H., additional, Drobek, D., additional, Niemczura, E., additional, Lampens, P., additional, Lykke, J., additional, Bloemen, S., additional, Gameiro, J. F., additional, Jean, C., additional, Volpi, D., additional, Gorlova, N., additional, Mortier, A., additional, Tsantaki, M., additional, and Raskin, G., additional

Published
2013
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5. A multisite photometric study of two unusual β Cep stars: the magnetic V2052 Oph and the massive rapid rotator V986 Oph

Author

Handler, G., primary, Shobbrook, R. R., additional, Uytterhoeven, K., additional, Briquet, M., additional, Neiner, C., additional, Tshenye, T., additional, Ngwato, B., additional, van Winckel, H., additional, Guggenberger, E., additional, Raskin, G., additional, Rodríguez, E., additional, Mazumdar, A., additional, Barban, C., additional, Lorenz, D., additional, Vandenbussche, B., additional, Şahin, T., additional, Medupe, R., additional, and Aerts, C., additional

Published
2012
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6. Mass ratio from Doppler beaming and Rømer delay versus ellipsoidal modulation in the Kepler data of KOI-74★

Author

Bloemen, S., primary, Marsh, T. R., additional, Degroote, P., additional, Østensen, R. H., additional, Pápics, P. I., additional, Aerts, C., additional, Koester, D., additional, Gänsicke, B. T., additional, Breedt, E., additional, Lombaert, R., additional, Pyrzas, S., additional, Copperwheat, C. M., additional, Exter, K., additional, Raskin, G., additional, Van Winckel, H., additional, Prins, S., additional, Pessemier, W., additional, Frémat, Y., additional, Hensberge, H., additional, Jorissen, A., additional, and Van Eck, S., additional

Published
2012
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7. Chemically tagging the Hyades stream: does it partly originate from the Hyades cluster?★

Author

Pompéia, L., primary, Masseron, T., additional, Famaey, B., additional, Van Eck, S., additional, Jorissen, A., additional, Minchev, I., additional, Siebert, A., additional, Sneden, C., additional, Lépine, J. R. D., additional, Siopis, C., additional, Gentile, G., additional, Dermine, T., additional, Pasquato, E., additional, Van Winckel, H., additional, Waelkens, C., additional, Raskin, G., additional, Prins, S., additional, Pessemier, W., additional, Hensberge, H., additional, Frémat, Y., additional, Dumortier, L., additional, and Bienaymé, O., additional

Published
2011
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