Zobrazeno 1 - 10
of 366
pro vyhledávání: '"Matthews, J M"'
Autor:
Sulis, S., Dragomir, D., Lendl, M., Bourrier, V., Demory, B. O., Fossati, L., Cubillos, P. E., Guenther, D. B., Kane, S. R., Kuschnig, R., Matthews, J. M., Moffat, A. F. J., Rowe, J. F., Sasselov, D., Weiss, W. W., Winn, J. N.
Publikováno v:
A&A 631, A129 (2019)
Context. 55 Cnc e is a transiting super-Earth orbiting a solar-like star with an orbital period of 17.7 hours. In 2011, using the MOST space telescope, a quasi-sinusoidal modulation in flux was detected with the same period as the planetary orbit. Th
Externí odkaz:
http://arxiv.org/abs/1910.00383
Autor:
Antoci, V., Cunha, M. S., Bowman, D. M., Murphy, S. J., Kurtz, D. W., Bedding, T. R., Borre, C. C., Christophe, S., Daszyńska-Daszkiewicz, J., Fox-Machado, L., Hernández, A. García, Ghasemi, H., Handberg, R., Hansen, H., Hasanzadeh, A., Houdek, G., Johnston, C., Justesen, A. B., Alicavus, F. Kahraman, Kotysz, K., Latham, D., Matthews, J. M., Mønster, J., Niemczura, E., Paunzen, E., Arias, J. P. Sánchez, Pigulski, A., Pepper, J., Richey-Yowell, T., Safari, H., Seager, S., Smalley, B., Shutt, T., Sódor, A., Suárez, J. -C., Tkachenko, A., Wu, T., Zwintz, K., Forteza, S. Barceló, Brunsden, E., Bognár, Z., Buzasi, D. L., Chowdhury, S., De Cat, P., Evans, J. A., Guo, Z., Guzik, J. A., Jevtic, N., Lampens, P., Martiz, M. Lares, Lovekin, C., Li, G., Mirouh, G. M., Mkrtichian, D., Monteiro, M. J. P. F. G., Nemec, J. M., Ouazzani, R., Pascual-Granado, J., Reese, D. R., Rieutord, M., Rodon, J. R., Skarka, M., Sowicka, P., Stateva, I., Szabó, R., Weiss, W. W.
We present the first asteroseismic results for $\delta$ Scuti and $\gamma$ Doradus stars observed in Sectors 1 and 2 of the TESS mission. We utilise the 2-min cadence TESS data for a sample of 117 stars to classify their behaviour regarding variabili
Externí odkaz:
http://arxiv.org/abs/1909.12018
Autor:
Cunha, M. S., Antoci, V., Holdsworth, D. L., Kurtz, D. W., Balona, L. A., Bognár, Zs., Bowman, D. M., Guo, Z., Kołaczek-Szymański, P. A., Lares-Martiz, M., Paunzen, E., Skarka, M., Smalley, B., Sódor, Á., Kochukhov, O., Pepper, J., Richey-Yowell, T., Ricker, G. R., Seager, S., Buzasi, D. L., Fox-Machado, L., Hasanzadeh, A., Niemczura, E., Quitral-Manosalva, P., Monteiro, M. J. P. F. G., Stateva, I., De Cat, P., Hernández, A. García, Ghasemi, H., Handler, G., Hey, D., Matthews, J. M., Nemec, J. M., Pascual-Granado, J., Safari, H., Suárez, J. C., Szabó, R., Tkachenko, A., Weiss, W. W.
We present the first results from the Transiting Exoplanet Survey Satellite (TESS) on the rotational and pulsational variability of magnetic chemically peculiar A-type stars. We analyse TESS 2-min cadence data from sectors 1 and 2 on a sample of 83 s
Externí odkaz:
http://arxiv.org/abs/1906.01111
Autor:
Siwak, M., Ogloza, W., Moffat, A. F. J., Matthews, J. M., Rucinski, S. M., Kallinger, T., Kuschnig, R., Cameron, C., Weiss, W. W., Rowe, J. F., Guenther, D. B., Sasselov, D.
This is the final photometric study of TW Hya based on new MOST satellite observations. During 2014 and 2017 the light curves showed stable 3.75 and 3.69 d quasi-periodic oscillations, respectively. Both values appear to be closely related with the s
Externí odkaz:
http://arxiv.org/abs/1805.04547
Autor:
Pribulla, T., Mérand, A., Kervella, P., Cameron, C., Deen, C., Garcia, P. J. V., Horrobin, M., Matthews, J. M., Moffat, A. F. J., Pfuhl, O., Rucinski, S. M., Straub, O., Weiss, W. W.
V923 Sco is a bright ($V$ = 5.91), nearby ($\pi$ = 15.46$\pm$0.40 mas) southern eclipsing binary. Because both components are slow rotators, the minimum masses of the components are known with 0.2% precision from spectroscopy. The system seems ideal
Externí odkaz:
http://arxiv.org/abs/1804.09917
Autor:
Paparo, M., Kollath, Z., Shobbrook, R. R., Matthews, J. M., Antoci, V., Benko, J. M., Park, N. K., Mirtorabi, M. T., Luedeke, K., Kusakin, A., Bognar, Zs., Sodor, A., Garcia-Hernandez, A., Pena, J. H., Kuschnig, R., Moffat, A. F. J., Rowe, J., Rucinski, S. M., Sasselov, D., Weiss, W. W.
We present and discuss the pulsational characteristics of the Delta Scuti star 38 Eri from photometric data obtained at two widely spaced epochs, partly from the ground (1998) and partly from space (MOST, 2011). We found 18 frequencies resolving the
Externí odkaz:
http://arxiv.org/abs/1804.01769
Autor:
Molnár, L., Derekas, A., Szabó, R., Szabados, L., Matthews, J. M., Cameron, C., Moffat, A. F. J., Richardson, N., Evans, N. R.
The MOST space telescope observed four Cepheid variables so far, all of different subtypes. Here we summarize the results obtained and the possible ways to continue to study these stars.
Comment: 2 pages, 1 figure, proceedings of the 2nd BRITE-C
Comment: 2 pages, 1 figure, proceedings of the 2nd BRITE-C
Externí odkaz:
http://arxiv.org/abs/1705.01922
Autor:
Kallinger, T., Weiss, W. W., Beck, P. G., Pigulski, A., Kuschnig, R., Tkachenko, A., Pakhomov, Y., Ryabchikova, T., Lüftinger, T., Palle, P. L., Semenko, E., Handler, G., Koudelka, O., Matthews, J. M., Moffat, A. F. J., Pablo, H., Popowicz, A., Rucinski, S., Wade, G. A., Zwintz, K.
Publikováno v:
A&A 603, A13 (2017)
Stellar rotation affects the transport of chemical elements and angular momentum and is therefore a key process during stellar evolution, which is still not fully understood. This is especially true for massive stars, which are important for the chem
Externí odkaz:
http://arxiv.org/abs/1704.01151
Autor:
Molnár, L., Derekas, A., Szabó, R., Matthews, J. M., Cameron, C., Moffat, A. F. J., Richardson, N. D., Csák, B., Dózsa, Á., Reed, P., Szabados, L., Heathcote, B., Bohlsen, T., Cacella, P., Luckas, P., Sódor, Á., Skarka, M., Szabó, Gy. M., Plachy, E., Kovács, J., Evans, N. R., Kolenberg, K., Collins, K. A., Pepper, J., Stassun, K. G., Rodriguez, J. E., Siverd, R. J., Henden, A., Mankiewicz, L., Żarnecki, A. F., Cwiek, A., Sokolowski, M., Pál, A., Guenther, D. B., Kuschnig, R., Rowe, J., Rucinski, S. M., Sasselov, D., Weiss, W. W.
Space-based photometric measurements first revealed low-amplitude irregularities in the pulsations of Cepheid stars, but their origins and how commonly they occur remain uncertain. To investigate this phenomenon, we present MOST space telescope photo
Externí odkaz:
http://arxiv.org/abs/1612.06722
Autor:
Handler, G., Pigulski, A., Weiss, W. W., Moffat, A. F. J., Kuschnig, R., Wade, G. A., Orleanski, P., Rucinski, S. M., Koudelka, O., Smolec, R., Zwintz, K., Matthews, J. M., Popowicz, A., Baade, D., Neiner, C., Pamyatnykh, A. A., Rowe, J., Schwarzenberg-Czerny, A.
The BRIght Target Explorer (BRITE) Constellation is the first nanosatellite mission applied to astrophysical research. Five satellites in low-Earth orbits perform precise optical two-colour photometry of the brightest stars in the night sky. BRITE is
Externí odkaz:
http://arxiv.org/abs/1611.02161