Zobrazeno 1 - 10
of 243
pro vyhledávání: '"Il'in, A. B."'
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:
Gontcharov, G. A., Mosenkov, A. V., Savchenko, S. S., Il'in, V. B., Marchuk, A. A., Smirnov, A. A., Usachev, P. A., Polyakov, D. M., Hebdon, N.
Publikováno v:
Astronomy Letters, 2022, 48, 578-600
We present a new version of our analytical model of the spatial interstellar extinction variations within the nearest kiloparsec. This model treats the 3D dust distribution as a superposition of three overlapping layers: (1) the layer along the Galac
Externí odkaz:
http://arxiv.org/abs/2302.03871
Autor:
Gontcharov, G. A., Mosenkov, A. V., Savchenko, S. S., Il'in, V. B., Marchuk, A. A., Smirnov, A. A., Usachev, P. A., Polyakov, D. M., Shakespear, Z.
Publikováno v:
Astronomy Letters, 2022, 48, pp. 503-516
We have applied the method of star counts with Wolf diagrams to determine the interstellar extinction in five Galactic cirri in Sloan Digital Sky Survey (SDSS) Stripe 82. For this purpose, we have used the photometry of stars in the GALEX NUV filter
Externí odkaz:
http://arxiv.org/abs/2301.10591
Autor:
Gontcharov, George A., Khovritchev, Maxim Yu., Mosenkov, Aleksandr V., Il'in, Vladimir B., Marchuk, Alexander A., Poliakov, Denis M., Ryutina, Olga S., Savchenko, Sergey S., Smirnov, Anton A., Usachev, Pavel A., Lee, Jae-Woo, Camacho, Conner, Hebdon, Noah
We present new isochrone fits to the colour-magnitude diagrams of the Galactic globular clusters NGC\,6362 and NGC\,6723. We utilize 22 and 26 photometric filters for NGC\,6362 and NGC\,6723, respectively, from the ultraviolet to mid-infrared using d
Externí odkaz:
http://arxiv.org/abs/2211.12684
Autor:
Mosenkov, Aleksandr V., Usachev, Pavel A., Shakespear, Zacory, Guerrette, Jacob, Baes, Maarten, Bianchi, Simone, Xilouris, Emmanuel M., Gontcharov, George A., Il'in, Vladimir B., Marchuk, Alexander A., Savchenko, Sergey S., Smirnov, Anton A.
In this first paper in a series we present a study of the global dust emission distribution in nearby edge-on spiral galaxies. Our sample consists of 16 angularly large and 13 less spatially resolved galaxies selected from the DustPedia sample. To ex
Externí odkaz:
http://arxiv.org/abs/2207.11589
The radiative properties of interstellar dust are affected not only by the grain size distribution but also by the grain porosity. We develop a model for the evolution of size-dependent grain porosity and grain size distribution over the entire histo
Externí odkaz:
http://arxiv.org/abs/2111.12868
Autor:
Gontcharov, George A., Khovritchev, Maxim Yu., Mosenkov, Aleksandr V., Il'in, Vladimir B., Marchuk, Alexander A., Savchenko, Sergey S., Smirnov, Anton A., Usachev, Pavel A., Poliakov, Denis M.
We present new isochrone fits to colour-magnitude diagrams of the Galactic globular clusters NGC\,288, NGC\,362, and NGC\,6218 (M12). We utilize a lot of photometric bands from the ultraviolet to mid-infrared by use of data from the {\it HST}, {\it G
Externí odkaz:
http://arxiv.org/abs/2109.13115
The properties of interstellar grains, such as grain size distribution and grain porosity, are affected by interstellar processing, in particular, coagulation and shattering, which take place in the dense and diffuse interstellar medium (ISM), respec
Externí odkaz:
http://arxiv.org/abs/2101.02365