Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Kharchenko, N. V."'
We aim at establishing safe membership and evolutionary status of 11 chemically peculiar (CP) stars that are residing in the domain of the open cluster NGC2516 and are frequently referred to as cluster members. We queried the Gaia EDR3 catalogue in a
Externí odkaz:
http://arxiv.org/abs/2206.12824
Autor:
Piskunov, A. E., Just, A., Kharchenko, N. V., Berczik, P., Scholz, R. -D., Reffert, S., Yen, S. X.
Publikováno v:
A&A 614, A22 (2018)
The all-sky Milky Way Star Clusters (MWSC) survey provides uniform and precise ages and other parameters for a variety of clusters in the Solar Neighbourhood. We construct the cluster age distribution, investigate its spatial variations, and discuss
Externí odkaz:
http://arxiv.org/abs/1802.06779
Autor:
Gusev, A. S., Sakhibov, F., Piskunov, A. E., Kharchenko, N. V., Bruevich, V. V., Ezhkova, O. V., Guslyakova, S. A., Lang, V., Shimanovskaya, E. V., Efremov, Yu. N.
We present a study of complexes of young massive star clusters (YMCs), embedded in extragalactic giant HII regions, based on the coupling of spectroscopic with photometric and spectrophotometric observations of about 100 star forming regions in seven
Externí odkaz:
http://arxiv.org/abs/1601.07470
Autor:
Gusev, A. S., Sakhibov, F. Kh., Piskunov, A. E., Kharchenko, N. V., Pilyugin, L. S., Ezhkova, O. V., Khramtsova, M. S., Guslyakova, S. A., Bruevich, V. V., Dodonov, S. N., Lang, V., Shimanovskaya, E. V., Efremov, Yu. N.
Publikováno v:
Astronomical and Astrophysical Transactions, Vol. 29, Issue 3, pp. 293-304 (2016)
We studied 102 star forming regions in seven spiral galaxies (NGC 628, NGC 783, NGC 2336, NGC 6217, NGC 6946, NGC 7331, and NGC 7678) on the basis of complex spectroscopic, photometric (UBVRI) and spectrophotometric (H alpha line) observations. Using
Externí odkaz:
http://arxiv.org/abs/1601.04062
Publikováno v:
A&A 581, A39 (2015)
AIMS: In their 1st extension to the Milky Way Star Clusters (MWSC) survey, Schmeja et al. applied photometric filters to the 2MASS to find new cluster candidates that were subsequently confirmed or rejected by the MWSC pipeline. To further extend the
Externí odkaz:
http://arxiv.org/abs/1507.02125
Autor:
Schmeja, S., Kharchenko, N. V., Piskunov, A. E., Röser, S., Schilbach, E., Froebrich, D., Scholz, R. -D.
Publikováno v:
A&A 568, A51 (2014)
An earlier analysis of the Milky Way Star Cluster (MWSC) catalogue revealed an apparent lack of old (> 1 Gyr) open clusters in the solar neighbourhood (< 1 kpc). To fill this gap we undertook a search for hitherto unknown star clusters, assuming that
Externí odkaz:
http://arxiv.org/abs/1406.6267
Autor:
Hubrig, S., Fossati, L., Carroll, T. A., Castro, N., Gonzalez, J. F., Ilyin, I., Przybilla, N., Schoeller, M., Oskinova, L. M., Morel, T., Langer, N., Scholz, R. D., Kharchenko, N. V., Nieva, M. -F., collaboration, the BOB
Recent magnetic field surveys in O- and B-type stars revealed that about 10% of the core-hydrogen-burning massive stars host large-scale magnetic fields. The physical origin of these fields is highly debated. To identify and model the physical proces
Externí odkaz:
http://arxiv.org/abs/1403.0491
Autor:
Conrad, C., Scholz, R. -D., Kharchenko, N. V., Piskunov, A. E., Schilbach, E., Röser, S., Boeche, C., Kordopatis, G., Siebert, A., Williams, M., Munari, U., Matijevič, G., Grebel, E. K., Zwitter, T., de Jong, R. S., Steinmetz, M., Gilmore, G., Seabroke, G., Freeman, K., Navarro, J. F., Parker, Q., Reid, W., Watson, F., Gibson, B. K., Bienaymé, O., Wyse, R., Bland-Hawthorn, J., Siviero, A.
Context. Galactic open clusters (OCs) mainly belong to the young stellar population in the Milky Way disk, but are there groups and complexes of OCs that possibly define an additional level in hierarchical star formation? Current compilations are too
Externí odkaz:
http://arxiv.org/abs/1309.4325
Although they are the main constituents of the Galactic disk population, for half of the open clusters in the Milky Way reported in the literature nothing is known except the raw position and an approximate size. The main goal of this study is to det
Externí odkaz:
http://arxiv.org/abs/1308.5822
Autor:
Hubrig, S., Schoeller, M., Ilyin, I., Kharchenko, N. V., Oskinova, L. M., Langer, N., Gonzalez, J. F., Kholtygin, A. F., Briquet, M., collaboration, the MAGORI
Theories on the origin of magnetic fields in massive stars remain poorly developed, because the properties of their magnetic field as function of stellar parameters could not yet be investigated. To investigate whether magnetic fields in massive star
Externí odkaz:
http://arxiv.org/abs/1301.4376