Results 81 to 90 of about 901,551 (242)
V.P.Tsessevich - a way in science
Odessa Astronomical Publications, 2017 The biography of Vladimir Platonovich Tsessevichj one of the most prominent variable star researches? is briefly presented. The opening talk at the memorial conference ”Variable Stars” (Odessafl September 1-5?
V. G. Karetnikov
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A NICER Viewing Angle on the Accretion Stream of Vela X-1
The Astrophysical Journal, 2023 Vela X-1 is the archetypal eclipsing high-mass X-ray binary, composed of a neutron star (NS) accreting the B-star wind. It was observed by nearly all X-ray observatories, often multiple times, featuring a rich spectrum of variable emission lines. However,
Roi Rahin, Ehud Behar
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The origin of abundance gradients in the Milky Way: the predictions of different models
, 2008 We aim at studying the abundance gradients along the Galactic disk and their dependence upon several parameters: a threshold in the surface gas density regulating star formation, the star formation efficiency, the timescale for the formation of the thin ...
Abadi +67 more
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RE-CLASSIFICATION OF THE NEGLECTED VARIABLE V480 AQL
Odessa Astronomical Publications, 2014 We present the results of multicoloured photometric study of previously neglected variable star V480 Aql. Our V RI observations prove that this star belongs to classical Cepheids with the period of P = 19d.0016.
N. A. Virnina, N. Maslova, T. Krajci
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New Variable Stars on Digitized Moscow Collection Plates. Field 66 Ophiuchi (Northern Half) [PDF]
arXiv, 2008 We initiated digitization of the Moscow collection of astronomical plates using flatbed scanners. Techniques of photographic photometry of the digital images were applied, enabling an effective search for new variable stars. Our search for new variables among 140000 stars in the 10 x 5 degrees northern half of the field centered at 66 Oph, photographed
arxiv
A Durchmusterung of variable stars [PDF]
Astronomische Nachrichten, 1906 n ...
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Finding the most variable stars in the Orion Belt with the All Sky Automated Survey [PDF]
, 2010 We look for high-amplitude variable young stars in the open clusters and associations of the Orion Belt. We use public data from the ASAS-3 Photometric V-band Catalogue of the All Sky Automated Survey, infrared photometry from the 2MASS and IRAS catalogues, proper motions, and the Aladin sky atlas to obtain a list of the most variable stars in a survey
arxiv +1 more source
A Study of Be Star Variability [PDF]
Symposium - International Astronomical Union, 1982 Variations of Balmer emission line strength for Be stars are compared to simultaneously measured photometric light-curves in the visual and infrared regions of the spectrum. Three different types of correlations between photometric and spectrometric variations are described. Variable intensity of continuous recombination radiation from ionized hydrogen
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