Results 21 to 30 of about 3,534,154 (173)

OBSERVATIONS OF CATACLYSMIC VARIABLES AT KOLONICA OBSERVATORY

Odessa 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

The BINSYN Program Package [PDF]

Journal of Astronomy and Space Sciences, 2012
The BINSYN program package, recently expanded to calculate synthetic spectra of cataclysmic variables, is being further extended to include synthetic photometry of ordinary binary stars in addition to binary stars with optically thick accretion disks ...
Albert P. Linnell
doaj   +1 more source

HS 2331+3905 : the cataclysmic variable that has it all [PDF]

, 2005
We report detailed follow-up observations of the cataclysmic variable HS 2331+3905, identified as an emissionline object in the Hamburg Quasar Survey. An orbital period of 81.08 min is unambiguously determined from the detection of eclipses in the light ...
Araujo-Betancor, S., H.-J. Hagen, D. Engels, Hagen, H.-J., Harlaftis, E. T., S. Araujo-Betancor, Gaensicke, B. T., Schmeer, P., E. T. Harlaftis, J. Thorstensen, R. E. Fried, Fried, R. E., T. R. Marsh, B. T. Gänsicke, Thorstensen, John Robert, P. Schmeer, Marsh, T. R., Engels, Dieter, Gänsicke, B. T, Marsh, T. R, Thorstensen, J, Harlaftis, E T   +21 more
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The Ritter-Kolb Catalogue and its Impact on Research into CVs, LMXBs and related Objects

Acta Polytechnica CTU Proceedings, 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.
H. Ritter, U. Kolb
doaj   +1 more source

The hybrid Nova Vul 2024 (=V615 Vul)

Astronomy & Astrophysics
Context. Among galactic novae, many remain poorly characterized due to heterogeneous data, observational challenges, or heavy reddening along the Galactic plane.
Valisa P., Munari U., Albanese I.
doaj   +1 more source

Exploring the application of new telescope technologies in the testing of dwarf novae accretion models [PDF]

, 2011
Includes abstract.Includes bibliographical references (p. 261-273.)In this thesis I investigate emerging telescope technologies and demonstrate, within the context of accretion in cataclysmic variables (CVs), their role in contributing to the stellar ...
Spark, Mellony
core   +1 more source

Automatic Search of Cataclysmic Variables Based on LightGBM in LAMOST-DR7

Universe, 2021
The search for special and rare celestial objects has always played an important role in astronomy. Cataclysmic Variables (CVs) are special and rare binary systems with accretion disks.
Zhiyuan Hu, Jianyu Chen, Bin Jiang, Wenyu Wang   +3 more
doaj   +1 more source

In Situ Construction of Phosphorus‐Containing Crosslinked Urethane Network Combined With Ammonium Polyphosphate via Reactive Blending for Enhancing Flame Retardancy and Anti‐Dripping Performance of Polylactic Acid Composites

Safety Science and Technology, EarlyView.
By in situ reaction blending, DOPO‐HQ and THEIC were added to PLA with MDI to construct a phosphorus containing polyurethane network, which significantly improved the flame retardant and anti‐dripping properties of polylactic acid composites. ABSTRACT Polylactic acid (PLA) is highly flammable and prone to severe melt dripping during combustion, which ...
Chiyuan Chen, Sadiqa Khan, Hongyu Yang, Xiaming Feng, Chaojun Wan   +4 more
wiley   +1 more source

The helium-rich cataclysmic variable SBSS 1108+574 [PDF]

, 2013
We present time-resolved spectroscopy and photometry of the dwarf nova SBSS 1108+574, obtained during the 2012 outburst. Its quiescent spectrum is unusually rich in helium, showing broad, double-peaked emission lines from the accretion disc. We measure a
Koff, R.A., Koff, R. A., Kupfer, T., Steeghs, D., Gänsicke, B., Gaensicke, B. T., Koester, D., Carter, P. J., Carter, P., Rau, A., Groot, P., Roelofs, G., Krajci, T., Gänsicke, B. T. (Boris T.), Carter, P.J., Koff, R., Marsh, T., Roelofs, G. H. A., Marsh, T. R., Groot, P.J., Marsh, Tom, Koester, Detlev, Krajci, Thomas, Gänsicke, B. T., Roelofs, G.H.A., Rau, Arne, Miguel Agustino, Enrique de, Breedt, E., Goff, W., Nelemans, G., Koff, Robert, Gänsicke, B.T., de Miguel, E., Marsh, T.R., Nelemans, G.A., Groot, P. J., Miguel, E. de   +36 more
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Brown dwarfs in retrogradely precessing cataclysmic variables?

EPJ Web of Conferences, 2011
We compare Smoothed Particle Hydrodynamic simulations of retrogradely precessing accretion disks that have a white dwarf primary and a main sequence secondary with observational data and with theory on retrograde precession via tidal torques like those ...
Martin E.L., Deshpande R., Montgomery M.M.   +2 more
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