Results 61 to 70 of about 17,300 (305)
Modelling of W UMa-type variable stars
South African Journal of Science, 2009 W Ursae Majoris (W UMa)-type variable stars are over-contact eclipsing binary stars. To understand how these systems form and evolve requires observations spanning many years, followed by detailed models of as many of them as possible.
P. Skelton, D. Smits
doaj
Variables in the Southern Polar Region Evryscope 2016 Dataset [PDF]
, 2019 The regions around the celestial poles offer the ability to find and characterize long-term variables from ground-based observatories. We used multi-year Evryscope data to search for high-amplitude (~5% or greater) variable objects among 160,000 bright ...
Barlow, Brad N. +8 more
core +3 more sources
Variable stars in the residual light curves of OGLE-IV eclipsing binaries towards the Galactic Bulge [PDF]
, 2023 Rozália Z. Ádám +5 more
openalex +1 more source
Accurate fundamental parameters of eclipsing binary stars [PDF]
Proceedings of the International Astronomical Union, 2004 The study of detached eclipsing binaries is one of the most powerful ways to investigate the properties of individual stars and stellar systems. We present preliminary masses, radii and effective temperatures for the eclipsing binary WW Aurigae, which is composed of two metallic-lined A-type stars.
Southworth, J +3 more
openaire +3 more sources
Advanced Materials Technologies, EarlyView.A low‐cost, maskless visible light photopatterning system has been developed by combining a consumer‐grade projector with a single Fresnel lens, generating the Fresnel Lens Integrated Projector (FLIP) system. FLIP enables flexible photopatterning of solid and gel films with features down to 30 µm and 135 µm, respectively.
Sridaran Rajagopal +2 more
wiley +1 more source
The Evolutionary Statuses of Solar Type Detached Eclipsing Binary Stars [PDF]
Journal of Astronomy and Space Sciences, 2012 We presented fundamental stellar parameters and evolutionary statuses of six solar type detached eclipsing binaries whose masses are in the range of 0.97-1.43 M⊙. EK Cep and FL Lyr belong to the zero age main sequence.
Chanisa Kanjanascul +5 more
doaj +1 more source
The binary properties of the pulsating subdwarf B eclipsing binary PG 1336-018 (NY Virginis) [PDF]
, 2007 Aims. We present an unbiased orbit solution and mass determination of the components of the eclipsing binary PG1336−018 as a critical test for the formation scenarios of subdwarf B stars. Methods. We obtained high-resolution time series VLT/UVES spectra
Al-Naimiy +54 more
core +4 more sources
Advanced Optical Materials, EarlyView.Multifunctional fluorescent coatings offering simultaneous thermo‐ and mechanochromic‐time integration via Förster resonance energy transfer (FRET) are reported. The exchange of fluorophores among donor and acceptor droplets in the coatings over time results in a decrease in the average intermolecular distance between the donor–acceptor pair, yielding ...
Ryno van Niekerk +4 more
wiley +1 more source
The Astronomical Journal, 2023 We present a detailed analysis of an eclipsing double-lined binary FX UMa based on TESS photometry and newly acquired spectroscopic observations. The radial velocities and atmospheric parameters for each component star are obtained from the SONG high ...
Kun Wang +5 more
doaj +1 more source
Eclipsing Binary Stars: the Royal Road to Stellar Astrophysics [PDF]
, 2012 Russell (1948) famously described eclipses as the "royal road" to stellar astrophysics. From photometric and spectroscopic observations it is possible to measure the masses and radii (to 1% or better!), and thus surface gravities and mean densities, of ...
Southworth, John
core +1 more source