Zobrazeno 1 - 10
of 2 578
pro vyhledávání: '"Günther, E"'
Autor:
Odert, P., Leitzinger, M., Greimel, R., Kabáth, P., Lipták, J., Heinzel, P., Karjalainen, R., Wollmann, J., Guenther, E. W., Skarka, M., Srba, J., Škoda, P., Frýda, J., Brahm, R., Vanzi, L., Janík, J.
The young active flare star AU~Mic is the planet host star with the highest flare rate from TESS data. Therefore, it represents an ideal target for dedicated ground-based monitoring campaigns with the aim to characterize its numerous flares spectrosc
Externí odkaz:
http://arxiv.org/abs/2412.09113
Autor:
Lipták, J., Skarka, M., Guenther, E., Chaturvedi, P., Vítková, M., Karjalainen, R., Šubjak, J., Hatzes, A., Bieryla, A., Gandolfi, D., Albrecht, S. H., Beck, P. G., Deeg, H. J., Everett, M. E., Higuera, J., Jones, D., Mathur, S., Patel, Y. G., Persson, C. M., Redfield, S., Kabáth, P.
Precise space-based photometry from the Transiting Exoplanet Survey Satellite results in a huge number of exoplanetary candidates. However, the masses of these objects are unknown and must be determined by ground-based spectroscopic follow-up observa
Externí odkaz:
http://arxiv.org/abs/2408.06897
Autor:
Guenther, E. W., Goffo, E., Sebastian, D., Smith, A. M. S., Persson, C. M., Fridlund, M., Gandolfi, D., Korth, J.
Ultra-short period planets have orbital periods of less than one day. Since their masses and radii can be determined to a higher precision than long-period planets, they are the preferred targets to determine the density of planets which constrains t
Externí odkaz:
http://arxiv.org/abs/2402.09322
In recent years the focus of exoplanet research has shifted from the mere detection to detailed characterization. Precise measurements of the masses and radii of transiting planets have shown that some low-mass planets have extended atmospheres while
Externí odkaz:
http://arxiv.org/abs/2311.02965
Autor:
Zak, J., Jones, D., Boffin, H. M. J., Beck, P. G., Klencki, J., Bodensteiner, J., Shenar, T., Van Winckel, H., Skarka, M., Arellano-Córdova, K., Viuho, J., Sowicka, P., Guenther, E. W., Hatzes, A.
The quest for quiet or dormant black holes has been ongoing since several decades. Ellipsoidal variables possibly indicate the existence of a very high-mass invisible companion and are thought to be one of the best ways to find such dormant black hol
Externí odkaz:
http://arxiv.org/abs/2307.09594
Autor:
Deeg, H. J., Georgieva, I. Y., Nowak, G., Persson, C. M., Cale, B. L., Murgas, F., Pallé, E., Rivera, D. Godoy, Dai, F., Ciardi, D. R., Murphy, J. M. Akana, Beck, P. G., Burke, C. J., Cabrera, J., Carleo, I., Cochran, W. D., Collins, K. A., Csizmadia, Sz., Mufti, M. El, Fridlund, M., Fukui, A., Gandolfi, D., García, R. A., Guenther, E. W., Guerra, P., Grziwa, S., Isaacson, H., Isogai, K., Jenkins, J. M., Kábath, P., Korth, J., Lam, K. W. F., Latham, D. W., Luque, R., Lund, M. B., Livingston, J. H., Mathis, S., Mathur, S., Narita, N., Orell-Miquel, J., Osborne, H. L. M., Parviainen, H., Plavchan, P. P., Redfield, S., Rodriguez, D. R., Schwarz, R. P., Seager, S., Smith, A. M. S., Van Eylen, V., Van Zandt, J., Winn, J. N, Ziegler, C.
Publikováno v:
A&A 677, A12 (2023)
TOI 1416 (BD+42 2504, HIP 70705) is a V=10 late G or early K-type dwarf star with transits detected by TESS. Radial velocities verify the presence of the transiting planet TOI-1416 b, with a period of 1.07d, a mass of $3.48 M_{Earth}$ and a radius of
Externí odkaz:
http://arxiv.org/abs/2305.18542
Determination of small-scale magnetic fields on Sun-like stars in the near-infrared using CRIRES$^+$
Autor:
Hahlin, A., Kochukhov, O., Rains, A. D., Lavail, A., Hatzes, A., Piskunov, N., Reiners, A., Seemann, U., Boldt-Christmas, L., Guenther, E. W., Heiter, U., Nortmann, L., Yan, F., Shulyak, D., Smoker, J. V., Rodler, F., Bristow, P., Dorn, R. J., Jung, Y., Marquart, T., Stempels, E.
Publikováno v:
A&A 675, A91 (2023)
We aim to characterise the small-scale magnetic fields for a sample of 16 Sun-like stars and investigate the capabilities of the newly upgraded near-infrared (NIR) instrument CRIRES$^+$ at the VLT in the context of small-scale magnetic field studies.
Externí odkaz:
http://arxiv.org/abs/2305.06873
Autor:
Ribas, I., Reiners, A., Zechmeister, M., Caballero, J. A., Morales, J. C., Sabotta, S., Baroch, D., Amado, P. J., Quirrenbach, A., Abril, M., Aceituno, J., Anglada-Escudé, G., Azzaro, M., Barrado, D., Béjar, V. J. S., de Haro, D. Benítez, Bergond, G., Bluhm, P., Ortega, R. Calvo, Guillén, C. Cardona, Chaturvedi, P., Cifuentes, C., Colomé, J., Cont, D., Cortés-Contreras, M., Czesla, S., Díez-Alonso, E., Dreizler, S., Duque-Arribas, C., Espinoza, N., Fernández, M., Fuhrmeister, B., Galadí-Enríquez, D., García-López, A., González-Álvarez, E., Hernández, J. I. González, Guenther, E. W., de Guindos, E., Hatzes, A. P., Henning, Th., Herrero, E., Hintz, D., Huelmo, Á. L., Jeffers, S. V., Johnson, E. N., de Juan, E., Kaminski, A., Kemmer, J., Khaimova, J., Khalafinejad, S., Kossakowski, D., Kürster, M., Labarga, F., Lafarga, M., Lalitha, S., Lampón, M., Lillo-Box, J., Lodieu, N., González, M. J. López, López-Puertas, M., Luque, R., Magán, H., Mancini, L., Marfil, E., Martín, E. L., Martín-Ruiz, S., Molaverdikhani, K., Montes, D., Nagel, E., Nortmann, L., Nowak, G., Pallé, E., Passegger, V. M., Pavlov, A., Pedraz, S., Perdelwitz, V., Perger, M., Ramón-Ballesta, A., Reffert, S., Revilla, D., Rodríguez, E., Rodríguez-López, C., Sadegi, S., Carrasco, M. Á. Sánchez, Sánchez-López, A., Sanz-Forcada, J., Schäfer, S., Schlecker, M., Schmitt, J. H. M. M., Schöfer, P., Schweitzer, A., Seifert, W., Shan, Y., Skrzypinski, S. L., Solano, E., Stahl, O., Stangret, M., Stock, S., Stürmer, J., Tabernero, H. M., Tal-Or, L., Trifonov, T., Vanaverbeke, S., Yan, F., Osorio, M. R. Zapatero
The CARMENES instrument was conceived to deliver high-accuracy radial velocity (RV) measurements with long-term stability to search for temperate rocky planets around a sample of nearby cool stars. The broad wavelength coverage was designed to provid
Externí odkaz:
http://arxiv.org/abs/2302.10528