Zobrazeno 1 - 10
of 542
pro vyhledávání: '"Mugrauer, M."'
Stellar multiplicity is a key aspect of exoplanet diversity, as the presence of more than one star in a planetary system can have both devastating and positive effects on its formation and evolution. In this paper, we present the results of a Lucky I
Externí odkaz:
http://arxiv.org/abs/2402.12299
RW Aurigae is a young stellar system containing a classical T Tauri star as the primary component. It shows deep, irregular dimmings, first detected in 2010. At the University Observatory Jena, we carried out optical follow-up observations. We perfor
Externí odkaz:
http://arxiv.org/abs/2312.17598
Autor:
Maciejewski, G., Fernández, M., Sota, A., Amado, P. J., Ohlert, J., Bischoff, R., Stenglein, W., Mugrauer, M., Michel, K. -U., Golonka, J., Solsona, A. Blanco, Lapena, E., Freire, J. Molins, Curieses, A. De los Ríos, Sicilia, J. A. Temprano
The loneliness of hot Jupiters supports the high-eccentricity migration as a primary path leading to the formation of systems with those planets stripped of any close-in planetary companions. Here we present the null results of searches for low-mass
Externí odkaz:
http://arxiv.org/abs/2307.00538
We present the latest results of our ongoing multiplicity study of (Community) TESS Objects of Interest, using astrometric and photometric data from the ESA-Gaia mission to detect stellar companions of these stars and characterize their properties.\l
Externí odkaz:
http://arxiv.org/abs/2306.02452
Autor:
Maciejewski, G., Fernandez, M., Sota, A., Amado, P. J., Dimitrov, D., Nikolov, Y., Ohlert, J., Mugrauer, M., Bischoff, R., Heyne, T., Hildebrandt, F., Stenglein, W., Arevalo, A. A., Neira, S., Riesco, L. A., Martinez, V. Sanchez, Verdugo, M. M.
Publikováno v:
A&A 667, A127 (2022)
Hot Jupiters on extremely short-period orbits are expected to be unstable to tidal dissipation and spiral toward their host stars. That is because they transfer the angular momentum of the orbital motion through tidal dissipation into the stellar int
Externí odkaz:
http://arxiv.org/abs/2209.10597
Autor:
Kenworthy, M. A., Picos, D. González, Elizondo, E., Martin, R. G., van Dam, D. M., Rodriguez, J. E., Kennedy, G. M., Ginski, C., Mugrauer, M., Vogt, N., Adam, C., Oelkers, R. J.
Publikováno v:
A&A 666, A61 (2022)
A deep (~70%) and extended (~150 days) eclipse was seen towards the young multiple stellar system V773 Tau in 2010. We interpret it as due to the passage of a circumbinary disk around the B components moving in front of the A components. Our aim is t
Externí odkaz:
http://arxiv.org/abs/2207.05575
The latest results from our ongoing multiplicity study of (Community) TESS Objects of Interest are presented, using astro- and photometric data from the ESA-Gaia mission, to detect stellar companions of these stars and characterize their properties.
Externí odkaz:
http://arxiv.org/abs/2206.12472
Autor:
Valtonen, Mauri J., Dey, Lankeswar, Zola, S., Ciprini, S., Kidger, M., Pursimo, T., Gopakumar, A., Matsumoto, K., Sadakane, K., Caton, D. B., Nilsson, K., Komossa, S., Bagaglia, M., Baransky, A., Boumis, P., Boyd, D., Castro-Tirado, A. J., Debski, B., Drozdz, M., Pérez, A. Escartin, Fiorucci, M., Garcia, F., Gazeas, K., Ghosh, S., Godunova, V., Gomez, J. L., Gredel, R., Grupe, D., Haislip, J. B., Henning, T., Hurst, G., Janík, J., Kouprianov, V. V., Lehto, H., Liakos, A., Mathur, S., Mugrauer, M., Nogues, R. Naves, Nucciarelli, G., Ogloza, W., Ojha, D. K., Pajdosz-Śmierciak, U., Pascolini, S., Poyner, G., Reichart, D. E., Rizzi, N., Roncella, F., Sahu, D. K., Sillanpää, A., Simon, A., Siwak, M., Alfaro, F. C. Soldán, Sonbas, E., Tosti, G., Vasylenko, V., Webb, J. R., Zielinski, P.
OJ 287 is a BL Lacertae type quasar in which the active galactic nucleus (AGN) outshines the host galaxy by an order of magnitude. The only exception to this may be at minimum light when the AGN activity is so low that the host galaxy may make quite
Externí odkaz:
http://arxiv.org/abs/2205.15589
We present new imaging and spectroscopic observations of the exoplanet host star $\gamma$ Cep A, and of its low-mass stellar companion $\gamma$ Cep B. We used AstraLux/CAHA to follow the orbital motion of the companion around its primary, whose radia
Externí odkaz:
http://arxiv.org/abs/2203.04128
Autor:
Bischoff, R., Raetz, St., Fernández, M., Mugrauer, M., Neuhäuser, R., Huang, P. C., Chen, W. P., Sota, A., Ortega, J. Jiménez, Hambaryan, V. V., Zieliński, P., Dróżdż, M., Ogłoza, W., Stenglein, W., Hohmann, E., Michel, K. -U.
The T Tauri star CVSO30, also known as PTFO8-8695, was studied intensively with ground based telescopes as well as with satellites over the last decade. It showed a variable light curve with additional repeating planetary transit-like dips every ~0.8
Externí odkaz:
http://arxiv.org/abs/2201.12405