Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Nina V. Kharchenko"'
Autor:
Peter Berczik, Nina V. Kharchenko, E. S. Postnikova, Kseniia Sysoliatina, A. E. Piskunov, M. V. Ishchenko, Sabine Reffert, Evgeny Polyachenko, Dana Kovaleva, Andreas Just
Given the closeness of the two open clusters Cr 135 and UBC 7 on the sky, we investigate the possibility of the two clusters to be physically related. We aim to recover the present-day stellar membership in the open clusters Collinder 135 and UBC 7 (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2abcc0e14594877f607e80a66206e16d
http://arxiv.org/abs/2009.02223
http://arxiv.org/abs/2009.02223
Autor:
Nikolai I. Shatsky, Alexander S. Gusev, E. V. Shimanovskaya, A. E. Piskunov, Nina V. Kharchenko, F. Sakhibov
Publikováno v:
Open Astronomy, Vol 27, Iss 1, Pp 98-111 (2018)
We developed techniques for searching young unresolved star groupings (clusters, associations, and their complexes) and of estimating their physical parameters. Our study is based on spectroscopic, spectrophotometric, and UBVRI photometric observatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f7ccfe18c3fe114c0aa70d0b024f89a
https://doaj.org/article/f89afbe43d914b6d926eec27242317b9
https://doaj.org/article/f89afbe43d914b6d926eec27242317b9
Publikováno v:
Open Astronomy, Vol 26, Iss 1, Pp 219-223 (2017)
Our goal was to compare the open cluster photometric distance scale of the global survey of star clusters in the Milky Way (MWSC) with the distances derived from trigonometric parallaxes from the Gaia DR1/TGAS catalogue and to investigate to which de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e42b8823fcda567a10b251244f316983
https://doaj.org/article/da8b61423d2c427cbf9559f7c98d7ad4
https://doaj.org/article/da8b61423d2c427cbf9559f7c98d7ad4
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 453:1981-1989
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f2e6884b311aa921741e41970b29bfb
https://doi.org/10.1093/mnras/stv1636
https://doi.org/10.1093/mnras/stv1636
Autor:
A. E. Piskunov, Sabine Reffert, Nina V. Kharchenko, Ralf-Dieter Scholz, S. Röser, Steffi X. Yen, Dana Kovaleva, Elena Schilbach
Publikováno v:
NASA Astrophysics Data System
The global survey of star clusters in the Milky Way (MWSC) is a comprehensive list of 3061 objects that provides, among other parameters, distances to clusters based on isochrone fitting. The Tycho-Gaia Astrometric Solution (TGAS) catalogue, which is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e47a09282c52bc81e1e3c1f0cb8295a
http://arxiv.org/abs/1709.09975
http://arxiv.org/abs/1709.09975
Autor:
Steffi X. Yen, Siegfried Röser, Sabine Reffert, Elena Schilbach, A. E. Piskunov, Nina V. Kharchenko
Publikováno v:
Proceedings of the International Astronomical Union. 12:281-282
We have developed a fully automated cluster characterization pipeline, which simultaneously determines cluster membership and fits the fundamental cluster parameters: distance, reddening, and age. We present results for 24 established clusters and co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce4bdf98e40af9e8802a6db2c58ff2f8
https://doi.org/10.1017/s1743921317006366
https://doi.org/10.1017/s1743921317006366
Autor:
Siegfried Röser, A. E. Piskunov, Nina V. Kharchenko, Ralf-Dieter Scholz, Elena Schilbach, Hans Zinnecker
Publikováno v:
Reviews in Modern Astronomy: Deciphering the Universe through Spectroscopy, Volume 22
It is textbook knowledge that open clusters are conspicuous members of the thin disk of our Galaxy, but their role as contributors to the stellar population of the disk was regarded as minor. Starting from a homogenous stellar sky survey, the ASCC-2.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56a469a313f8ef2a93d91f2a154f8b99
https://doi.org/10.1002/asna.201011367
https://doi.org/10.1002/asna.201011367
Publikováno v:
Astronomy & Astrophysics. 507:L5-L8
(...) We search for an explanation of the disagreement between the observed integrated colours of 650 local Galactic clusters and the theoretical colours of present-day SSP models. We check the hypothesis that the systematic offsets between observed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e65fba9f8fd62414c99c21c9412984e4
https://doi.org/10.1051/0004-6361/200913270
https://doi.org/10.1051/0004-6361/200913270
Autor:
Hans Zinnecker, A. E. Piskunov, Elena Schilbach, R.-D. Scholz, Nina V. Kharchenko, Siegfried Röser
Publikováno v:
Astronomy & Astrophysics. 504:681-688
Aims. We determine the integrated magnitudes and colours of 650 clusters in optical (BV) and the near-infrared (JHKs) passbands and construct the luminosity functions of the Galactic open clusters in these passbands. Methods. The magnitudes are based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acd1ec92721beafa58f849959c44d60d
https://doi.org/10.1051/0004-6361/200911979
https://doi.org/10.1051/0004-6361/200911979
Autor:
A. E. Piskunov, Nina V. Kharchenko, Peter Berczik, R.-D. Scholz, S. Röser, M. I. Petrov, Elena Schilbach
Publikováno v:
Astronomy & Astrophysics. 495:807-818
(abridged) In this paper we derive observed and modelled shape parameters (apparent ellipticity and orientation of the ellipse) of 650 Galactic open clusters identified in the ASCC-2.5 catalogue. We provide the observed shape parameters of Galactic o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d6f73ecd3ed23409fcb756e29d4a085
https://doi.org/10.1051/0004-6361/200810407
https://doi.org/10.1051/0004-6361/200810407