Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Ilyin, I. V."'
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
Publikováno v:
A&A (2019)
We present a temperature and a magnetic-field surface map of the K2 subgiant of the active binary II Peg. Employed are high resolution Stokes IV spectra obtained with the new Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the La
Externí odkaz:
http://arxiv.org/abs/1902.11201
RZ Psc is an isolated high-latitude post-T Tauri star that demonstrates a UX Ori-type photometric activity. The star shows very weak spectroscopic signatures of accretion, but at the same time possesses the unusual footprints of the wind in Na I D li
Externí odkaz:
http://arxiv.org/abs/1701.03312
Akademický článek
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Publikováno v:
A&A 580, A64 (2015)
We study the connection between the chromospheric and photospheric behaviour of the active late-type star FK Comae. We use spot temperature modelling, light curve inversion based on narrow- and wide-band photometric measurements, Halpha observations
Externí odkaz:
http://arxiv.org/abs/1505.07119
Autor:
Järvinen, S. P., Arlt, R., Hackman, T., Marsden, S. C., Küker, M., Ilyin, I. V., Berdyugina, S. V., Strassmeier, K. G., Waite, I. A.
Publikováno v:
A&A 574, A25 (2015)
The (Zeeman-)Doppler imaging studies of solar-type stars very often reveal large high-latitude spots. This also includes F stars that possess relatively shallow convection zones, indicating that the dynamo operating in these stars differs from the so
Externí odkaz:
http://arxiv.org/abs/1412.2892
Autor:
Korhonen, H., Gonzalez, J. F., Briquet, M., Soriano, M. Flores, Hubrig, S., Savanov, I., Hackman, T., Ilyin, I. V., Eulaers, E., Pessemier, W.
Aims: Time series of high-resolution spectra of the late B-type star HD 11753 exhibiting HgMn chemical peculiarity are used to study the surface distribution of different chemical elements and their temporal evolution. Methods: High-resolution and hi
Externí odkaz:
http://arxiv.org/abs/1302.5119
Autor:
Petrov, P. P., Gahm, G. F., Gameiro, J. F., Duemmler, R., Ilyin, I. V., Laakkonen, T., Lago, M. T. V. T., Tuominen, I.
(Abridged) High-resolution spectroscopic monitoring of RW Aur A was carried out in 1996, 1998 and 1999 with simultaneous B, V photometry. A multicomponent spectrum is revealed with a veiled photospheric spectrum, broad emissions, narrow emission line
Externí odkaz:
http://arxiv.org/abs/astro-ph/0102137
Publikováno v:
Astronomy & Astrophysics.
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::875200e86bb5d9bb141e064158b9b335
https://doi.org/10.1051/0004-6361/202245664
https://doi.org/10.1051/0004-6361/202245664
Autor:
Ilyin, I. V. (Ilya V.)
Preface This work is dedicated to high-resolution echelle spectroscopy with SOFIN instrument at the 2.56m Nordic Optical Telescope. The first part describes the instrument, its performance, instrumental effects, and the study of its instrumental prof
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2423::68d3324a8ea97dce42f869f12abd3570
http://urn.fi/urn:nbn:fi-fe2023041236156
http://urn.fi/urn:nbn:fi-fe2023041236156