Zobrazeno 1 - 10
of 408
pro vyhledávání: '"Galazutdinov, G. A."'
Publikováno v:
Publications of the Astronomical Society of the Pacific, Volume 127, Issue 950, pp. 356 (2015)
We re-consider the already published phenomenon: the blue shift of diffuse interstellar bands, observed in spectra of HD34078 (AE Aur) and members of the Sco OB1 association, in particular HD152233. We have analyzed 29 diffuse bands. Part of them, al
Externí odkaz:
http://arxiv.org/abs/2409.04781
Autor:
Yakovlev, O. Ya., Valeev, A. F., Valyavin, G. G., Aitov, V. N., Mitiani, G. Sh., Fatkhullin, T. A., Beskin, G. M., Tavrov, A. V., Korablev, O. I., Galazutdinov, G. A., Vlasyuk, V. V., Emelianov, E. V., Sasyuk, V. V., Perkov, A. V., Bondar, S. F., Burlakova, T. E., Fabrika, S. N., Romanyuk, I. I.
We present a catalog of 150 variable stars, including 13 stars with exoplanet candidates. 37 stars were identified as variables for the first time. As a result of a 2.5-year photometric survey of exoplanets, we have obtained and analyzed light curves
Externí odkaz:
http://arxiv.org/abs/2404.10027
Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit
Autor:
Galazutdinov, G. A., Baluev, R. V., Valyavin, G., Aitov, V., Gadelshin, D., Valeev, A., Sendzikas, E., Sokov, E., Mitiani, G., Burlakova, T., Yakunin, I., Antonyuk, K. A., Vlasyuk, V., Romanyuk, I., Rzaev, A., Yushkin, M., Ivanova, A., Tavrov, A., Korablev, O.
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters 2023 September 5
We report an independent Doppler confirmation of the TESS planet candidate orbiting an F-type main sequence star TOI-1408 located 140 pc away. We present a set of radial velocities obtained with a high-resolution fiber-optic spectrograph FFOREST moun
Externí odkaz:
http://arxiv.org/abs/2309.03009
Autor:
Yakovlev, O. Ya., Valeev, A. F., Valyavin, G. G., Tavrov, A. V., Aitov, V. N., Mitiani, G. Sh., Beskin, G. M., Vlasyuk, V. V., Korablev, O. I., Galazutdinov, G. A., Emelianov, E. V., Fatkhullin, T. A., Sasyuk, V. V., Perkov, A. V., Bondar, S. F., Burlakova, T. E., Fabrika, S. N., Romanyuk, I. I.
Here we present eight new candidates for exoplanets detected by the transit method at the Special Astrophysical Observatory of the Russian Academy of Sciences. Photometric observations were performed with a 50-cm robotic telescope during the second h
Externí odkaz:
http://arxiv.org/abs/2304.01076
Publikováno v:
2021MNRAS.508.4241K
The paper describes profile broadening and peak wavelength variation of diffuse interstellar bands (DIBs) measured for 46 lines of sight, probably caused by physical properties of intervening clouds. Full width at half maximum of four studied diffuse
Externí odkaz:
http://arxiv.org/abs/2208.13519
Autor:
Yakovlev, O. Ya., Valeev, A. F., Valyavin, G. G., Tavrov, A. V., Aitov, V. N., Mitiani, G. Sh., Korablev, O. I., Galazutdinov, G. A., Beskin, G. M., Emelianov, E. V., Fatkhullin, T. A., Vlasyuk, V. V., Sasyuk, V. V., Perkov, A. V., Bondar, S., Burlakova, T. E., Fabrika, S. N., Romanyuk, I. I.
We used the 0.5-m robotic telescopes located at the Special Astrophysical Observatory of the Russian Academy of Sciences for monitoring two square degrees of the sky with the aim of detecting new exoplanets. A dimming of the visible brightness is exp
Externí odkaz:
http://arxiv.org/abs/2206.06030
Publikováno v:
AJ, 161, 127 (2021)
We study, for the first time, the relations of two strong diffuse bands (DIBs) at 9633 and 9577~\AA, commonly attributed to C$_{60}^+$, to other interstellar features seen in optical and UV spectra including H{\sc i}, Ca{\sc i}, Fe{\sc ii}, Na{\sc i}
Externí odkaz:
http://arxiv.org/abs/2102.10674
Publikováno v:
A&A 641, A35 (2020)
The precise characteristics of clouds and the nature of dust in the diffuse interstellar medium can only be extracted by inspecting the rare cases of single-cloud sightlines. In our nomenclature such objects are identified by interstellar lines, such
Externí odkaz:
http://arxiv.org/abs/2006.12877
Publikováno v:
The Astronomical Journal, 2020, Volume 159, Issue 3, id.113
This paper considers a very special set of a few interstellar features --- broad diffuse interstellar bands (DIBs) at 4430, 4882, 5450, 5779 and 6175 \AA\AA. The set is small, and measurements of equivalent widths of these DIBs are challenging becaus
Externí odkaz:
http://arxiv.org/abs/2003.02328
Publikováno v:
Acta Astronomica, 2019, vol. 69, issue 4, pp. 369-380
This paper tries to establish whether there are variations of the central wavelengths or the profile shapes of diffuse interstellar bands (DIBs) and whether these variations are caused by different physical parameters of translucent clouds. For this
Externí odkaz:
http://arxiv.org/abs/2002.11031