Results 51 to 60 of about 10,397 (194)

OBSERVATIONS OF CATACLYSMIC VARIABLES AT KOLONICA OBSERVATORY

open access: yesOdessa Astronomical Publications, 2007
We present a small sample of our observations of cataclysmic variable stars obtained at Kolonica Observatory, The presented data for CI UMa, MR UMa and SW UM were obtained in 2006 and 2007. Our observations demonstrate that also the small telescopes with
S. Parimucha, P. Dubovsky, I. Kudzej
doaj   +1 more source

Identification of new cataclysmic variables in the 1RXS and USNO-B1.0 catalogs

open access: yes, 2010
As a result of applying the original optical variability search method on publicly available data, we have found eight new cataclysmic variables and two possible Optically Violent Variable quasars among the previously unidentified X-ray sources in the ...
A. J. Drake   +19 more
core   +1 more source

‘I Don't Want Another Five Years of “The Only Thing We Talk About Is Brexit”’: The Dynamics of EU (De)politicisation in Post‐Brexit Britain

open access: yesJCMS: Journal of Common Market Studies, EarlyView.
Abstract The 2016 Brexit referendum was a watershed moment for the politicisation of the European Union (EU) in the United Kingdom. Much has been written about the politicising effects of the referendum, along with the Leave result's subsequent contestation in the media as well as in national and European election cycles.
Anne‐Marie Houde, Louis Stockwell
wiley   +1 more source

Long-term variability survey of the old open cluster NGC 6791 [PDF]

open access: yes, 2003
We present the results of a long-term variability survey of the old open cluster NGC 6791. The BVI observations, collected over a time span of 6 years, were analyzed using the ISIS image subtraction package.
B. J. Mochejska   +6 more
core   +3 more sources

Molecular Alterations in Osteosarcomas of the Oral and Maxillofacial Region: A Scoping Review

open access: yesJournal of Oral Pathology &Medicine, EarlyView.
ABSTRACT Background Given the rarity and aggressive nature of osteosarcomas (OS) in the oral and maxillofacial region, understanding their molecular alterations is essential to improve diagnosis, prognosis, and guide targeted therapies. This study aimed to map molecular alterations associated with oral and maxillofacial OS, providing an overview of the
Iara Vieira Ferreira   +6 more
wiley   +1 more source

A Broadband X-Ray Study of the Dwarf Nova SS Cyg during Quiescence and Outburst

open access: yesThe Astrophysical Journal, 2023
We present a broadband X-ray study (∼0.3–50 keV) of the dwarf nova SS Cyg highlighting the changes in the accretion during two phases, the quiescence and the outburst states.
Anirban Dutta   +3 more
doaj   +1 more source

Nation‐Building in the Wake of Empire: Identifying Patterns of Minority Policies in the Aftermath of Soviet Collapse

open access: yesNations and Nationalism, EarlyView.
ABSTRACT The collapse of the USSR forced newly independent states to forge national identities while grappling with imperial legacies. This study investigates nation‐building strategies in post‐Soviet states during 1990–1999, using the Nation‐Building Policies (NBP) dataset from the ETHNICGOODS project, which includes all socially and politically ...
Emre Amasyalı, Andrei Tarasov
wiley   +1 more source

TESS Light Curves of Cataclysmic Variables. VI. Intermediate Polars

open access: yesThe Astrophysical Journal Supplement Series
The long and (almost) continuous high-cadence light curves provided by the TESS space mission are ideally suited to study in detail brightness variations in stellar sources on the broad range of timescales between minutes and months.
Albert Bruch
doaj   +1 more source

Identification of 1RXS J165424.6-433758 as a Polar Cataclysmic Variable

open access: yesThe Astrophysical Journal, 2023
We present the results of our X-ray, ultraviolet, and optical follow-up campaigns of 1RXS J165424.6-433758, an X-ray source detected with the Swift Deep Galactic Plane Survey.
B. O’Connor   +27 more
doaj   +1 more source

Cataclysmic Variables as Binary Stars: Then and Now [PDF]

open access: yesInternational Astronomical Union Colloquium, 1990
AbstractA brief history is given of the clues that led to the establishment, in the period c. 1950 to 1965, of a universal binary model for novae and related cataclysmic variables. The observational facts, established early in this period by A. H. Joy and R. F. Sanford (selected binary orbits), J. L. Greenstein (spectroscopy) and M. Walker (photometry)
openaire   +1 more source

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