Zobrazeno 1 - 10
of 185
pro vyhledávání: '"Baluev, A. V."'
Autor:
Baluev, Roman V., Sokov, Eugene N.
Based on TESS observations of a $\delta$ Scuti variable WASP-33 obtained in 2019 and 2022, we thoroughly investigate the power spectrum of this target photometric flux and construct a statistically exhaustive model for its variability. This model con
Externí odkaz:
http://arxiv.org/abs/2409.13422
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:
Baluev, Roman V.
We perform extensive Monte Carlo simulations to systematically compare the frequentist and Bayesian treatments of the Lomb--Scargle periodogram. The goal is to investigate whether the Bayesian period search is advantageous over the frequentist one in
Externí odkaz:
http://arxiv.org/abs/2203.08476
Autor:
Baluev, Roman V.
Publikováno v:
2022, MNRAS, 509 (1), 1048-1061
We consider the issue of excessive TTV noise observed for the exoplanet HD 189733 b. Trying to explain it through the host star photospheric activity, we model the stellar surface brightness as a random field, then characterize statistical properties
Externí odkaz:
http://arxiv.org/abs/2110.07901
Autor:
Baluev, R. V., Sokov, E. N., Sokova, I. A., Shaidulin, V. Sh., Veselova, A. V., Aitov, V. N., Mitiani, G. Sh., Valeev, A. F., Gadelshin, D. R., Gutaev, A. G., Beskin, G. M., Valyavin, G. G., Antonyuk, K., Barkaoui, K., Gillon, M., Jehin, E., Delrez, L., Guðmundsson, S., Dale, H. A., Fernández-Lajús, E., Di Sisto, R. P., Bretton, M., Wunsche, A., Hentunen, V. -P., Shadick, S., Jongen, Y., Kang, W., Kim, T., Pakštienė, E., Qvam, J. K. T., Knight, C. R., Guerra, P., Marchini, A., Salvaggio, F., Papini, R., Evans, P., Salisbury, M., Garlitz, J., Esseiva, N., Ogmen, Y., Bosch-Cabot, P., Selezneva, A., Hinse, T. C.
Publikováno v:
Acta Astronomica, 2021, Vol. 71, No. 1, pp. 25-53
We developed a dedicated statistical test for a massive detection of spot- and facula-crossing anomalies in multiple exoplanetary transit lightcurves, based on the frequentist $p$-value thresholding. This test was used to augment our algorithmic pipe
Externí odkaz:
http://arxiv.org/abs/2105.01704
Publikováno v:
Acta Astronomica, 2020, Vol. 70, No. 2, p. 141-168
We use an improved wavelet analysis technique to reconstruct the $(U,V,W)$ velocity distribution for $\sim 250000$ stars from Gaia DR2, residing in the solar neighborhood of $200$~pc. The 2D wavelet transforms for three bivariate distributions $(U,V)
Externí odkaz:
http://arxiv.org/abs/2011.09812
Autor:
Baluev, Roman. V.
Publikováno v:
2021, Astronomy & Computing, 34, 100440
We extend our previous algorithm computing the minimum orbital intersection distance (MOID) to include hyperbolic orbits, and mixed combinations ellipse--hyperbola. The MOID is computed by finding all stationary points of the distance function, equiv
Externí odkaz:
http://arxiv.org/abs/2011.12148
Autor:
Baluev, R. V., Sokov, E. N., Hoyer, S., Huitson, C., da Silva, José A. R. S., Evans, P., Sokova, I. A., Knight, C. R., Shaidulin, V. Sh.
Publikováno v:
2020, MNRAS, 496, L11-L15
We homogeneously reanalyse $124$ transit light curves for the WASP-4 b hot Jupiter. This set involved new observations secured in 2019 and nearly all observations mentioned in the literature, including high-accuracy GEMINI/GMOS transmission spectrosc
Externí odkaz:
http://arxiv.org/abs/2004.09109
Autor:
Baluev, R. V., Rodionov, E. I.
Publikováno v:
Celestial Mechanics & Dynamical Astronomy, 2020, V. 132, article 34
We perform statistical wavelet analysis of the Main Belt asteroids, seeking statistically significant asteroid families. The goal is to test the new wavelet analysis algorithm and to compare its results with more traditional methods like the hierarch
Externí odkaz:
http://arxiv.org/abs/2001.02990
Autor:
Baluev, R. V., Sokov, E. N., Jones, H. R. A., Shaidulin, V. Sh., Sokova, I. A., Nielsen, L. D., Benni, P., Schneiter, E. M., D'Angelo, C. Villarreal, Fernández-Lajús, E., Di Sisto, R. P., Baştürk, Ö., Bretton, M., Wunsche, A., Hentunen, V. -P., Shadick, S., Jongen, Y., Kang, W., Kim, T., Pakštienė, E., Qvam, J. K. T., Knight, C. R., Guerra, P., Marchini, A., Salvaggio, F., Papini, R., Evans, P., Salisbury, M., Garcia, F., Molina, D., Garlitz, J., Esseiva, N., Ogmen, Y., Karavaev, Yu., Rusov, S., Ibrahimov, M. A., Karimov, R. G.
Publikováno v:
Mon. Not. R. Astron. Soc., 2019, V. 490 (1), P. 1294-1312
We homogeneously analyse $\sim 3.2\times 10^5$ photometric measurements for $\sim 1100$ transit lightcurves belonging to $17$ exoplanet hosts. The photometric data cover $16$ years 2004--2019 and include amateur and professional observations. Old arc
Externí odkaz:
http://arxiv.org/abs/1908.04505