Zobrazeno 1 - 10
of 997
pro vyhledávání: '"Ilyin I"'
Autor:
Rowan, D. M., Stanek, K. Z., Kochanek, C. S., Thompson, Todd A., Jayasinghe, T., Blaum, J., Fulton, B. J., Ilyin, I., Isaacson, H., LeBaron, N., Lu, Jessica R., Martin, David V.
Precise and accurate mass and radius measurements of evolved stars are crucial to calibrating stellar models. Stars in detached eclipsing binaries (EBs) are excellent potential calibrators because their stellar parameters can be measured with fractio
Externí odkaz:
http://arxiv.org/abs/2409.02983
Context. In chemically peculiar Ap/Bp stars with large-scale organised magnetic fields with a simple centred dipole configuration, the ratio between the maximum and the minimum of the mean magnetic field modulus is of the order of 1.25. Values of 2 o
Externí odkaz:
http://arxiv.org/abs/2405.11594
Autor:
Keles, E., Czesla, S., Poppenhaeger, K., Hauschildt, P., Carroll, T. A., Ilyin, I., Baratella, M., Steffen, M., Strassmeier, K. G., Bonomo, A. S., Gaudi, B. S., Henning, T., Johnson, M. C., Molaverdikhani, K., Nascimbeni, V., Patience, J., Reiners, A., Scandariato, G., Schlawin, E., Shkolnik, E., Sicilia, D., Sozzetti, A., Mallonn, M., Veillet, C., Wang, J., Yan, F.
Absorption lines from exoplanet atmospheres observed in transmission allow us to study atmospheric characteristics such as winds. We present a new high-resolution transit time-series of HD 189733b, acquired with the PEPSI instrument at the LBT and an
Externí odkaz:
http://arxiv.org/abs/2404.13586
Autor:
Järvinen, S. P., Hubrig, S., Wolff, B., Kurtz, D. W., Mathys, G., Chojnowski, S. D., Schöller, M., Ilyin, I.
Pulsations of rapidly oscillating Ap stars and their interaction with the stellar magnetic field have not been studied in the near-IR region despite the benefits these observations offer compared to visual wavelengths. The main advantage of the near-
Externí odkaz:
http://arxiv.org/abs/2401.16966
Autor:
Ceccarelli, E., Massari, D., Mucciarelli, A., Bellazzini, M., Nunnari, A., Cusano, F., Lardo, C., Romano, D., Ilyin, I., Stokholm, A.
Relics of ancient accretion events experienced by the Milky Way are predominantly located within the stellar halo of our Galaxy. However, debris from different objects display overlapping distributions in dynamical spaces, making it extremely challen
Externí odkaz:
http://arxiv.org/abs/2401.04184
Numerous delta Sct and gamma Dor pulsators are identified in the region of the Hertzsprung-Russell diagram that is occupied by chemically peculiar magnetic Ap stars. The connection between delta Sct and gamma Dor pulsations and the magnetic field in
Externí odkaz:
http://arxiv.org/abs/2308.09441
Autor:
Rowan, D. M., Jayasinghe, T., Tucker, M. A., Lam, C. Y., Thompson, Todd A., Kochanek, C. S., Abrams, N. S., Fulton, B. J., Ilyin, I., Isaacson, H., Lu, J., Martin, D. V., Nicholson, B.
The identification and characterization of massive ($\gtrsim 0.8~M_\odot$) white dwarfs is challenging in part due to their low luminosity. Here we present two candidate single-lined spectroscopic binaries, Gaia DR3 4014708864481651840 and 5811237403
Externí odkaz:
http://arxiv.org/abs/2307.11146
Publikováno v:
A&A 674, A118 (2023)
We present a magnetic-field surface map for both stellar components of the young visual binary ksi Boo AB (A: G8V, B: K5V). Employed are high resolution Stokes-V spectra obtained with the Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEP
Externí odkaz:
http://arxiv.org/abs/2305.07470
Autor:
Scandariato, G., Borsa, F., Bonomo, A. S., Gaudi, B. S., Henning, Th., Ilyin, I., Johnson, M. C., Malavolta, L., Mallonn, M., Molaverdikhani, K., Nascimbeni, V., Patience, J., Pino, L., Poppenhaeger, K., Schlawin, E., Shkolnik, E. L., Sicilia, D., Sozzetti, A., Strassmeier, K. G., Veillet, C., Wang, J., Yan, F.
Publikováno v:
A&A 674, A58 (2023)
Hot giant planets like MASCARA-1 b are expected to have thermally inverted atmospheres, that makes them perfect laboratory for the atmospheric characterization through high-resolution spectroscopy. Nonetheless, previous attempts of detecting the atmo
Externí odkaz:
http://arxiv.org/abs/2304.03328
Although significant progress has been achieved in recent surveys of the magnetism in massive stars, the origin of the detected magnetic fields remains to be the least understood topic in their studies. We present an analysis of 61 high-resolution sp
Externí odkaz:
http://arxiv.org/abs/2303.14791