Results 21 to 30 of about 8,111 (268)
The BSN Application-I: Photometric Light Curve Solutions of Contact Binary Systems
GalaxiesLight curve analysis of W UMa-type contact binary systems using MCMC or MC methods can be time-consuming, primarily because the repeated generation of synthetic light curves tends to be relatively slow during the fitting process.
Ehsan Paki +2 more
doaj +1 more source
An additional pulsating mode (7.35 mHz) and pulsations timing variations of PG 1613+426
Open Astronomy, 2017 We present the detection of an additional pulsation mode (7.35 mHz) of a subdwarf B star, PG 1613+426, and periodic Observed minus Calculated (O-C) variations for two existing pulsations. PG 1613+426 is near the hot end of the sdB instability strip.
Otani Tomomi +5 more
doaj +1 more source
Constraining Roche-Lobe Overflow Models Using the Hot-Subdwarf Wide Binary Population
Open Astronomy, 2017 One of the important issues regarding the final evolution of stars is the impact of binarity. A rich zoo of peculiar, evolved objects are born from the interaction between the loosely bound envelope of a giant, and the gravitational pull of a companion ...
Vos Joris, Vučković Maja
doaj +1 more source
Mass Transfer in Mira-Type Binaries
Open Astronomy, 2012 Detached, symbiotic binaries are generally assumed to interact via Bondi-Hoyle-Littleton (BHL) wind accretion. However, the accretion rates and outflow geometries that result from this mass-transfer mechanism cannot adequately explain the observations of
Mohamed S., Podsiadlowski Ph.
doaj +1 more source
Advances in Applied Mathematics, 2000 The author considers binary sequences (i.e. having letters from the set \(\{0,1\})\), and defines binary cumulants for joint probability distributions on binary sequences of finite length. Distributions on binary sequences of finite length are related to solve some fundamental mathematical problems (e.g. Hilbert's 17th problem).
openaire +2 more sources
Beyond binaries and before becoming: Reconsidering resistance in UK higher education
PRISM, 2021 Drawing from the tensions within non-representational and human practice perspectives on affect, this paper continues the task of re-conceptualising academic-level resistance in the context of UK higher education.
Mollie Baker
doaj +2 more sources
New Symbiotic Stars Monitored with the Hermes Spectrograph: A Case Study of Orbital Hα Modulation
Open Astronomy, 2012 We present new orbital elements for two symbiotic systems involving a giant of spectral type S, namely V420 Hya and ER Del. These orbital elements are compared with existing elements for S-type binaries and for symbiotic binaries with M-giant primaries ...
Jorissen Alain +4 more
doaj +1 more source
Multiwavelength SED as a Tool in Understanding Outbursts of Symbiotic Binaries
Open Astronomy, 2012 Symbiotic binaries consist of a few sources of radiation contributing to spectral energy distribution (SED) from hard X-rays to radio wavelengths.
Skopal A.
doaj +1 more source
Binary vs. non-binary constraints
Artif. Intell., 2002 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fahiem Bacchus +3 more
openaire +1 more source
Reconstructing Historical Light Curves of Symbiotic Stars and Novae
Open Astronomy, 2012 We reconstructed photometric histories of symbiotic stars and novae from direct inspection and measurement of photographic plates preserved at historical archives.
Jurdana-Šepić R., Munari U.
doaj +1 more source