Zobrazeno 1 - 10
of 1 528
pro vyhledávání: '"FRÖHLICH, H."'
Autor:
Weiss, W. W., Fröhlich, H. -E., Kallinger, T., Kuschnig, R., Popowicz, A., Baade, D., Buzasi, D., Handler, G., Kochukhov, O., Koudelka, O., Moffat, A. F. J., Pablo, B., Wade, G., Zwintz, K.
Publikováno v:
A&A 642, A64, 2020
Chemically peculiar (CP) stars with a measurable magnetic field comprise the group of mCP stars. The pulsating members define the subgroup of rapidly oscillating Ap (roAp) stars, of which Alpha Circini is the brightest member. Hence, Alpha Circini al
Externí odkaz:
http://arxiv.org/abs/2011.12597
Akademický článek
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Akademický článek
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Autor:
Weiss, W. W., Fröhlich, H. -E., Pigulski, A., Popowicz, A., Huber, D., Kuschnig, R., Moffat, A. F. J., Matthews, J. M., Saio, H., Schwarzenberg-Czerny, A., Grant, C. C., Koudelka, O., Lüftinger, T., Rucinski, S. M., Wade, G. A., Alves, J., Guedel, M., Handler, G., Mochnacki, St., Orleanski, P., Pablo, B., Pamyatnykh, A., Ramiaramanantsoa, T., Rowe, J., Whittaker, G., Zawistowski, T., Zocłonska, E., Zwintz, K.
Publikováno v:
A&A 588, A54 (2016)
We report on an analysis of high-precision, multi-colour photometric observations of the rapidly-oscillating Ap (roAp) star $\alpha$ Cir. These observations were obtained with the BRITE-Constellation, which is a coordinated mission of five nanosatell
Externí odkaz:
http://arxiv.org/abs/1601.04833
Publikováno v:
A&A 569, A113 (2014)
We present photometric spot modeling of the nearly four-year long light-curve of the Kepler target KIC 5955122 in terms of persisting dark circular surface features. With a Bayesian technique, we produced a plausible surface map that shows dozens of
Externí odkaz:
http://arxiv.org/abs/1408.3926
Autor:
Corsaro, E., Fröhlich, H. -E., Bonanno, A., Huber, D., Bedding, T. R., Benomar, O., De Ridder, J., Stello, D.
We investigate different amplitude scaling relations adopted for the asteroseismology of stars that show solar-like oscillations. Amplitudes are among the most challenging asteroseismic quantities to handle because of the large uncertainties that ari
Externí odkaz:
http://arxiv.org/abs/1212.1156
Autor:
Arlt, R., Froehlich, H. -E.
The sunspot drawings of Johann Staudacher of 1749--1799 were used to determine the solar differential rotation in that period. These drawings of the full disk lack any indication of their orientation. We used a Bayesian estimator to obtain the positi
Externí odkaz:
http://arxiv.org/abs/1205.6679
Autor:
Fröhlich, H. -E., Frasca, A., Catanzaro, G., Bonanno, A., Corsaro, E., Molenda-Żakowicz, J., Klutsch, A., Montes, D.
We present a detailed study of the two Sun-like stars KIC 7985370 and KIC 7765135, aimed at determining their activity level, spot distribution, and differential rotation. Both stars were discovered by us to be young stars and were observed by the NA
Externí odkaz:
http://arxiv.org/abs/1205.5721
We present a spectroscopic/photometric analysis of the rapid rotator KIC8429280, discovered by ourselves as a very young star and observed by the Kepler mission. We use spectroscopic/photometric ground-based data to derive stellar parameters, and we
Externí odkaz:
http://arxiv.org/abs/1106.4928
Autor:
Lüftinger, T., Fröhlich, H. -E., Weiss, W., Petit, P., Aurière, M., Nesvacil, N., Gruberbauer, M., Shulyak, D., Alecian, E., Baglin, A., Baudin, F., Catala, C., Donati, J. -F., Kochukhov, O., Michel, E., Piskunov, N., Roudier, T., Samadi, R.
We compare surface maps of the chemically peculiar star HD 50773 produced with a Bayesian technique and based on high quality CoRoT photometry with those derived from rotation phase resolved spectropolarimetry. The goal is to investigate the correlat
Externí odkaz:
http://arxiv.org/abs/0911.3791