Acta Polytechnica CTU Proceedings. 2015 ( vol. 2)
Kolekce v této komunitě
Poslední příspěvky
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Superoutburst of a New Sub-Period-Minimum Dwarf Nova CSS130418 in Hercules
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Multicolour photometry of a new dwarf nova CSS130418 in Hercules, which underwent superoutburst on April 18, 2013, allow to classified it as a WZ Sge-type dwarf nova. The phase light curves for different stages of superoutburst ... -
Early Super Soft Source Spectra in RS Oph
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Recent Swift X-ray monitoring campaigns of novae have revealed extreme levels of variability during the early super-softsource (SSS) phase. The first time this was observed was during the 2006 outburst of the recurrent ... -
Detection of Diatomic Molecules in the Dust Forming Nova V2676 Oph
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Novae are generally considered to be hot astronomical objects and show effective temperatures up to 10,000 K or higher at their visual maximum. But, it is theoretically predicted that the outer envelope of the nova outflow ... -
Spectroscopic Monitoring Observations of Nova V1724 Aql in 2012
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Spectroscopic and photometric monitoring observations of nova Apl 2012 (V1724 Apl) were conducted at Koyama Astronomical Observatory, Fujii-Kurosaki Observatory and Bisei Astronomical Observatory. The nova was initially ... -
Theory of Nova Outbursts and Type Ia Supernovae
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)We briefly review the current theoretical understanding of the light curves of novae. These curves exhibit a homologous nature, dubbed the universal decline law, and when time-normalized, they almost follow a single curve ... -
A New Review of Old Novae
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Novae are certainly very exciting at the time of their eruptions, and there is much work left to be done in understanding all of the details of that part of their existence, but there is also much to be learned by looking ... -
When a Nova Becomes Old
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Here we present the preliminary results of a project aimed at unveiling the nature of classical novae decades after their eruption. The ultimate goal of this project is to describe the population of cataclysmic variables ... -
Life After Eruption: Best of 2009–2013
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)From our ongoing survey to study the post-nova population we present details on the four objects V728 Sco, AR Cir, V972 Oph and X Cir. -
The Nova V5584 Sgr: A Short Review
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)The nova V5584 Sgr was discovered during 2009 October. It has been monitored in different domains of the electromagnetic spectrum: optical, infrared and X-rays. The optical and infrared observations suggest that V5584 Sgr ... -
The Slow Nova V1280 Sco: A Short Review
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)We summarize the results of the extremely slow nova V1280 Sco and discuss the approach using discrete multiple blueshifted absorption lines, such as metastable He i* and Na i D, detected in our high-resolution spectra. -
The Golden Age of Cataclysmic Variables and Related Objects (Old and News)
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)In this paper we review cataclysmic variables (CVs) discussing several hot points about the renewing interest of today astrophysics about these sources. We will briefly discuss also about classical and recurrent novae, as ... -
ON SAMPLING BASED METHODS FOR THE DUBINS TRAVELING SALESMAN PROBLEM WITH NEIGHBORHOODS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)In this paper, we address the problem of path planning to visit a set of regions by Dubins vehicle, which is also known as the Dubins Traveling Salesman Problem Neighborhoods (DTSPN). We propose a modification of the ... -
The Ritter-Kolb Catalogue and its Impact on Research into CVs, LMXBs and related Objects
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)In the first part of this paper, the Ritter-Kolb catalogue (RKcat for short), its history and a few examples of its application to research in the field of cataclysmic variables are briefly described. In a second part we ... -
Multifrequency Behaviour of Polars
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Cataclysmic variables emit over a wide range of the electromagnetic spectrum. In this paper I will review observations of polars in relevant passbands obtained during the last decade and will discuss their diagnostical ... -
Cataclysmic Variables from SDSS: A Review and A Look Forward to LSST
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)The past and current projects of the Sloan Digital Sky Survey are reviewed in the context of applicability and results for cataclysmic variables. Ongoing and future time domain surveys that will have impact on the field ... -
Transient Processes in a Binary System with a White Dwarf
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Using the results of 3D gas dynamic numerical simulations we propose a mechanism that can explain the quiescent multihumped shape of light curves of WZ Sge short-period cataclysmic variable stars. Analysis of the obtained ... -
Inner Disk Structure of Dwarf Novae in the Light of X-Ray Observations
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Diversity of the X-ray observations of dwarf nova are still not fully understood. I review the X-ray spectral characteristics of dwarf novae during the quiescence in general explained by cooling flow models and the outburst ... -
The UBV Color Evolution of Classical and Symbiotic Novae
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)We identified a general course of classical nova outbursts in the B − V vs. U − B diagram. It has been reported that novae show spectra similar to A–F supergiants near optical light maximum. However, they do not follow the ... -
X-Ray Observations of VY Scl-Type Nova-Like Binaries in the High and Low State
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)Four VY Scl-type nova-like systems were observed in X-rays both during the low and the high optical states. They are BZ Cam, MV Lyr, TT Ari, and V794 Aql. Using archival ROSAT, Swift and SUZAKU observations we found that ... -
Optical Low Resolution Spectroscopic Observations of T Pyx during the Early Phase of 2011 Outburst
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)We report on the results of our low resolution spectroscopic observations during the 2011 outburst of the recurrent nova T Pyx. Our observations were performed from 0.19 days to 34 days after the eruption discovered by M. ...
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