Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Vakhtang S. Tamazian"'
Autor:
Manuel Andrade, R. Carini, Enzo Brocato, Luca Piccotti, José A. Docobo, Vakhtang S. Tamazian, P. P. Campo
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 492:2709-2721
The study of a selected set of 69 double-lined spectroscopic binaries (SB2) with well-defined visual and spectroscopic orbits was carried out. The orbital parallax, the mass, the colour, and the luminosity of each component were derived from observat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49d34d6c102a99e93480a1076dc56e27
https://doi.org/10.1093/mnras/stz3616
https://doi.org/10.1093/mnras/stz3616
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 476:2792-2800
In the vast majority of cases when available astrometric measurements of a visual binary cover a very short orbital arc, it is practically impossible to calculate a good quality orbit. It is especially important for systems with pre-main-sequence com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29f3b44e7b376aa6df3a9cf5123d76e3
https://doi.org/10.1093/mnras/sty317
https://doi.org/10.1093/mnras/sty317
Autor:
Marco Scardia, Brian D. Mason, Vakhtang S. Tamazian, Bo Reipurth, Andrei Tokovinin, T. ten Brummelaar, Frédéric Arenou, Patricia Lampens, Yuri Balega, José A. Docobo
Publikováno v:
Proceedings of the International Astronomical Union. 11:388-412
This report covers the workings of Commission 26 over the triennial period 2012-2015 and is the last report of the Commission. Included are reports from Working Groups and the Commission 26 Circular; all of which will be continuing in Commission G1 (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78a45e48ccbeb85a05991e6e63de81ae
https://doi.org/10.1017/s1743921316000879
https://doi.org/10.1017/s1743921316000879
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 444:3641-3646
We report a comprehensive study of the binary system COU 2031, based on simultaneous and independent astrometric visual and speckle observations and on radial-velocity measurements. The similarity of the two orbital solutions allows us to obtain not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a46f5d641432c58e223e4a3b5aed0b5d
https://doi.org/10.1093/mnras/stu1700
https://doi.org/10.1093/mnras/stu1700
Publikováno v:
Astrophysics. 56:8-18
Results of spectral monitoring of the flare stars HU Del, CM Dra, WX UMa, and VW Com by the 2.6-m telescope at the Byurakan Observatory during May-June 2012 with the SCORPIO spectral camera are reported. A strong flare of WX UMa was recorded during t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b46ec88931eea8b6fae0dea686c81a6f
https://doi.org/10.1007/s10511-013-9263-z
https://doi.org/10.1007/s10511-013-9263-z
Improved orbits are presented for the visual binaries WDS 02366+1227, WDS 02434-6643, WDS 03244-1539, WDS 08507+1800, WDS 09128-6055, WDS 11532-1540, WDS 17375+2419, and WDS 22408-0333. The latest orbits for these binaries were demonstrating a great
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f3c123cf756d262692428310434dc31
http://arxiv.org/abs/1609.03392
http://arxiv.org/abs/1609.03392
Publikováno v:
Astrophysics. 54:469-475
This is an analysis of the dependence of the flare activity of the well known flare star UV Ceti on the linear distance between the components of this binary system. It is shown that its flaring activity clearly depends on the mutual distance of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a576227d526dd3efc1e96516b74a628
https://doi.org/10.1007/s10511-011-9197-2
https://doi.org/10.1007/s10511-011-9197-2
Publikováno v:
Astrophysics. 54:377-383
A continued search for emission objects in three new fields within the association Cyg OB7 yielded eight new emission stars in one of these fields. No emission stars were detected in the other two fields, apparently because we have come to the bounda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15599d1b2a5693d7066f0e8af3ab6353
https://doi.org/10.1007/s10511-011-9187-4
https://doi.org/10.1007/s10511-011-9187-4
Publikováno v:
Astrophysics. 54:203-213
A search for Hα objects in four fields with an overall area of about 0.14 square degrees in the region of NGC 6910 (the core of the known Cyg OB9 association) has led to the discovery of 64 emission stars, of which 49 are newly detected. The high su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9506f76fefc65f3ecf06c276969cf9cd
https://doi.org/10.1007/s10511-011-9172-y
https://doi.org/10.1007/s10511-011-9172-y
Publikováno v:
The Astronomical Journal. 140:1078-1083
Results of the EMCCD-based speckle interferometric observations and differential photometry for 46 visual binaries obtained in 2007 June and July with the 6 m telescope of the Special Astrophysical Observatory (Russia) are presented. First preliminar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6de65fab7627085bfbbbe63f3e4e8a0
https://doi.org/10.1088/0004-6256/140/4/1078
https://doi.org/10.1088/0004-6256/140/4/1078