Zobrazeno 1 - 10
of 4 996
pro vyhledávání: '"A. A. Marchuk"'
A co-rotation radius is a key characteristic of disc galaxies that is essential to determine the angular speed of the spiral structure $\Omega_{p}$, and therefore understand its nature. In the literature, there are plenty of methods to estimate this
Externí odkaz:
http://arxiv.org/abs/2405.10673
Autor:
Gontcharov, G. A., Savchenko, S. S., Marchuk, A. A., Bonatto, C. J., Ryutina, O. S., Khovritchev, M. Yu., Il'in, V. B., Mosenkov, A. V., Poliakov, D. M., Smirnov, A. A.
We fit various colour-magnitude diagrams (CMDs) of the high-latitude Galactic globular clusters NGC\,5024 (M53), NGC\,5053, NGC\,5272 (M3), NGC\,5466, and NGC\,7099 (M30) by isochrones from the Dartmouth Stellar Evolution Database and Bag of Stellar
Externí odkaz:
http://arxiv.org/abs/2404.14797
Autor:
Gontcharov, George A., Bonatto, Charles J., Ryutina, Olga S., Savchenko, Sergey S., Mosenkov, Aleksandr V., Il'in, Vladimir B., Khovritchev, Maxim Yu., Marchuk, Alexander A., Poliakov, Denis M., Smirnov, Anton A., Seguine, Jonah
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 2023, Volume 526, Issue 4, pp. 5628-5647
We fit various colour-magnitude diagrams (CMDs) of the Galactic globular clusters NGC\,6397 and NGC\,6809 (M55) by isochrones from the Dartmouth Stellar Evolution Database (DSED) and Bag of Stellar Tracks and Isochrones (BaSTI) for $\alpha$-enhanced
Externí odkaz:
http://arxiv.org/abs/2402.06524
Autor:
Gontcharov, G. A., Marchuk, A. A., Khovrichev, M. Yu., Mosenkov, A. V., Savchenko, S. S., Il'in, V. B., Polyakov, D. M., Smirnov, A. A.
Publikováno v:
Astronomy Letters, 2023, Vol. 49, No. 11, pp. 666-689
We present new three-dimensional (3D) interstellar extinction maps in the $V$ and Gaia $G$ filters within 2 kpc of the Sun, a 3D differential extinction (dust spatial distribution density) map along the lines of sight in the same space, a 3D map of v
Externí odkaz:
http://arxiv.org/abs/2402.06474
Autor:
Mosenkov, Aleksandr V., Panasyuk, Andrey D., Turner, Savanah, Bartier, Crystal-Lynn, Skryabina, Maria N., Marchuk, Alexander A., Savchenko, Sergey S., Bergstedt, Jakob, Reshetnikov, Vladimir P., Chugunov, Ilia V.
In this paper, we look to analyse the spiral features of grand-design, multiarmed, and flocculent spiral galaxies using deep optical imaging from DESI Legacy Imaging Surveys. We explore the resulting distributions of various characteristics of spiral
Externí odkaz:
http://arxiv.org/abs/2312.10630
Autor:
Chugunov, Ilia V., Mosenkov, Aleksandr V., Marchuk, Alexander A., Savchenko, Sergey S., Shishkina, Ekaterina V., Chazov, Maxim I., Nazarova, Aleksandra E., Skryabina, Maria N., Smirnova, Polina I., Smirnov, Anton A.
Spiral structure can occupy a significant part of the galaxy, but properly accounting for it in photometric decomposition is rarely done. This may lead to significant errors in the parameters determined. To estimate how exactly neglecting the presenc
Externí odkaz:
http://arxiv.org/abs/2311.01848
Autor:
Savchenko, Sergey, Poliakov, Denis, Mosenkov, Aleksandr, Smirnov, Anton, Marchuk, Alexander, Il'in, Vladimir, Gontcharov, George, Seguine, Jonah, Baes, Maarten
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 524, Issue 3, pp.4729-4745 (2023)
The presence of dust in spiral galaxies affects the ability of photometric decompositions to retrieve the parameters of their main structural components. For galaxies in an edge-on orientation, the optical depth integrated over the line-of-sight is s
Externí odkaz:
http://arxiv.org/abs/2309.06257
Autor:
L.A. Marchuk, T.O. Gordeeva
Publikováno v:
Психологическая наука и образование, Vol 29, Iss 4, Pp 5-15 (2024)
The article focuses on the role of motivational factors in the successful completion and satisfaction with postgraduate programs. PhD students (N=155, M=26,8, SD=4,2, 63% women) participated in the study. The theoretical framework is based on self-de
Externí odkaz:
https://doaj.org/article/3981eec1c5e3406994cbce033b860a85
Autor:
Mosenkov, Aleksandr V., Rich, R. Michael, Fusco, Michael, Kennefick, Julia, Thilker, David, Marchuk, Alexander, Brosch, Noah, West, Michael, Gregg, Michael, Longstaff, Francis, Koch-Hansen, Andreas J., Abdeen, Shameer, Roque, William
We use a 0.7-m telescope in the framework of the Halos and Environments of Nearby Galaxies (HERON) survey to probe low surface brightness structures in nearby galaxies. One of our targets, UGC 4599, is usually classified as an early-type galaxy surro
Externí odkaz:
http://arxiv.org/abs/2308.09093
Publikováno v:
Mitochondrial DNA. Part B. Resources, Vol 9, Iss 8, Pp 1010-1014 (2024)
Hypecoum erectum L., a widespread species in northern Eurasia, is a valuable medicinal plant, but its chloroplast genome has not previously been reported. We determined its complete chloroplast genome using a high-throughput sequencing technique. Its
Externí odkaz:
https://doaj.org/article/1e3431dcabdd4ac18b1ca2970ceaa5f1