Procházení Acta Polytechnica CTU Proceedings. 2015, vol.2, no. 1 dle data publikování
Zobrazují se záznamy 41-60 z 65
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White Dwarfs in Cataclysmic Variables: An Update
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)In this review, we summarize what is currently known about the surface temperatures of accreting white dwarfs in nonmagnetic and magnetic cataclysmic variables (CVs) based upon synthetic spectral analyses of far ultraviolet ... -
Simultaneous UBVRI Observations of the AE Aquarii Blobs
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)We summarize the results of our study of the cataclysmic variable AE Aqr on the basis of simultaneous UBV RI observations. For the flares, we estimated the average risetime of about 300 sec, and colours (U−B)0~1.1 and (B−V ... -
On the Influence of Magnetic Field on Accretion Processes in CVs
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)We consider the influence of such parameters as the value of the proper magnetic field Ba and the spin-rotation velocity of the white dwarf on accretion processes in CVs. The results of 3D MHD simulations have shown that ... -
AE Aquarii: A Short Review
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)The nova-like variable AE Aquarii has been continuously studied since its discovery on photographic plates in 1934. In this short review the peculiar multi-wavelength properties of AE Aquarii will be reviewed and explained ... -
Suzaku View of Magnetic Cataclysmic Variables
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Results of magnetic cataclysmic variable studies performed with the Suzaku satellite are reviewed in this article. Particular emphasis is placed on the recent update of X-ray spectral model of intermediate polars, possible ... -
Photometry and Multipolar Magnetic Field Modeling of Polars: BY Camelopardalis and FL Ceti
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)We present new broad band optical photometry of two magnetic cataclysmic variable stars, the asynchronous polar BY Camelopardalis and the short period polar FL Ceti. Observations were obtained at the 2.1-m Otto Struve ... -
Non Relational Models for the Management of Large Amount of Astronomical Data
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)The objective of this paper is the comparison between two different database typologies: the relational and the nonrelational architecture, in the context of the applications related to the use and distribution of astronomical ... -
Diagnostic of the Symbiotic Stars Environment by Thomson, Raman and Rayleigh Scattering Processes
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Symbiotic stars are long-period interacting binaries consisting of a cool giant as the donor star and a white dwarf as the acretor. Due to acretion of the material from the giant’s stellar wind, the white dwarf becomes ... -
Rotation of the Mass Donors in High-mass X-ray Binaries and Symbiotic Stars
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Our aim is to investigate the tidal interaction in High-mass X-ray Binaries and Symbiotic stars in order to determine in which objects the rotation of the mass donors is synchronized or pseudosynchronized with the orbital ... -
Study of Cataclysmic Variables with the Satellites LOFT and Gaia
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)The goal of this paper is to discuss the capabilities of ESA satellite missions Gaia (already in space) and LOFT (considered for the ESA M4 slot) for investigation of cataclysmic variables (CVs). Both Gaia and LOFT can ... -
The Golden Age of Cataclysmic Variables and Related Objects - II Concluding Address
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Before to conclude officially this workshop — far from me the idea to attempt some concluding remarks already dealt at the meeting with various burning by Joseph Patterson, Mariko Kato, Dmitry Bisikalo, and Rene Hudec —, ... -
GLORIA and Study of Cataclysmic Variables
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)We report here on the ongoing EU FP7 Project GLORIA (GLObal Robotic-telescopes Intelligent Array) with emphasis on possibility of investigation of cataclysmic variables by users. GLORIA will enable the first free and ... -
Golden Era of Cataclysmic Variables and Related Objects II: Concluding Remarks
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)The cataclysmic variables continue to represent important part of modern astrophysics, as demonstrated, already second time, by the productive and successful conference Golden Era of Cataclysmic Variables and Related Objects ... -
Who Discovered the Hoyle Level?
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)The prediction of Hoyle that the nucleus of 12C must have a resonance at 7.62MeV was the trigger to the Anthropic Principle. We review the history of the discovery of this level and investigate to what extent this was a ... -
Concluding Remarks
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Concluding Remarks -
Observing CVs and LMXBs with SALT: Updates and Recent Results
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)I present an overview of the ongoing observational programs utilizing the Southern African Large Telescope (SALT), focussing on magnetic Cataclysmic Variables and Low Mass X-ray Binaries. SALT’s instruments and capabilities ... -
Supersoft X-Ray Source CAL 83: A Possible AE Aqr-like System
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)CAL83 is a close binary supersoft X-ray source in the Large Magellanic Cloud. A ~67 s periodicity detected in supersoft X-rays is most probably associated with the spin period of a highly spun-up white dwarf (WD). The ... -
Evolution and Outbursts of Cataclysmic Variables
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Mass transfer and accretion are very important to understand the evolution and observational properties of cataclysmic variables (CVs). Due to the lack of an accretion disk, eclipsing profiles of polars are the best source ... -
Why a New Code for Novae Evolution and Mass Transfer in Binaries?
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)One of the most interesting problems in Cataclysmic Variables is the long time scale evolution. This problem appears in long time evolution, which is also very important in the search for the progenitor of SN Ia. The ... -
Broad-Band Variability in Accreting Compact Objects
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Cataclysmic variable stars are in many ways similar to X-ray binaries. Both types of systems possess an accretion disk, which in most cases can reach the surface (or event horizon) of the central compact object. The main ...