HT Cas - eclipsing dwarf nova during its superoutburst in 2010 [PDF]
, 2013 We present results of a world-wide observing campaign of the eclipsing dwarf nova - HT Cas during its superoutburst in November 2010. Using collected data we were able to conduct analysis of the light curves and we calculated $O-C$ diagrams.
Bakowska, K. +5 more
core +2 more sources
Orbital period changes and the higher-order multiplicity fraction amongst SuperWASP eclipsing binaries [PDF]
, 2015 Orbital period changes of binary stars may be caused by the presence of a third massive body in the system. Here we have searched the archive of the Wide Angle Search for Planets (SuperWASP) project for evidence of period variations in 13 927 eclipsing ...
M. Lohr +8 more
semanticscholar +1 more source
Orbital period decay of compact black hole X-ray binaries: the influence of circumbinary disks? [PDF]
, 2015 Recently, compact black hole X-ray binaries XTE J 1118+480 and A0620-00 have been reported to be experiencing a fast orbital period decay, which is two orders of magnitude higher than expected with gravitational wave radiation.
Wen-Cong Chen, Xiang-dong Li
semanticscholar +1 more source
X-Ray Eclipse Timing in the LMXB EXO0748-676
, 2004 Orbital period changes are an important diagnostic for understanding low mass X-ray binary (LMXB) accretion-induced angular momentum exchange and overall system evolution. We present our most recent results for the eclipse timing of the LMXB EXO0748-676.
Ray, Paul S. +2 more
core +2 more sources
Period Change of W UMa Type Contact Binary AB And [PDF]
Journal of Astronomy and Space Sciences, 1997 The CCD photometric observations of W UMa-type eclipsing binary AB And were made from September 1994 to October 1996. New four primary minimum times were obtained form these observations.
Ho Jin +4 more
doaj
Evidence for a very slow X-ray pulsar in 2S0114+650 from RXTE All-Sky Monitor Observations
, 1998 Rossi X-ray Timing Explorer (RXTE) All-Sky Monitor (ASM) observations of the X-ray binary 2S0114+650 show modulations at periods close to both the optically derived orbital period (11.591 days) and proposed pulse period (~ 2.7 hr). The pulse period shows
Andrew G. Peele +15 more
core +2 more sources
Level spacings and periodic orbits [PDF]
Physical Review E, 2001 Starting from a semiclassical quantization condition based on the trace formula, we derive a periodic-orbit formula for the distribution of spacings of eigenvalues with k intermediate levels. Numerical tests verify the validity of this representation for the nearest-neighbor level spacing (k=0). In a second part, we present an asymptotic evaluation for
openaire +3 more sources
Long-term photometry of the eclipsing dwarf nova V893 Scorpii - Orbital period, oscillations, and a possible giant planet [PDF]
, 2014 The cataclysmic variable V893 Sco is an eclipsing dwarf nova which, apart from outbursts with comparatively low amplitudes, exhibits a particularly strong variability during quiescence on timescales of days to seconds.The present study aims to update the
A. Bruch
semanticscholar +1 more source
Orbital Variability in the Eclipsing Pulsar Binary PSR B1957+20
, 1993 We have conducted timing observations of the eclipsing millisecond binary pulsar PSR~B1957+20, extending the span of data on this pulsar to more than five years.
Arzoumanian, Z. +2 more
core +1 more source
TV Cassiopeiae with Chandra and XMM–Newton X-ray Observations
Proceedings, 2019 TV Cassiopeia (TV Cas) is a well-known eclipsing Algol-type binary comprising a B9V primary and F7 IV secondary in an orbit with a period of 1.81 days, together with a purported low-mass companion in a wide orbit.
Jun Yang +3 more
doaj +1 more source