Results 1 to 10 of about 5,204,122 (311)
Preliminary results of variable star search using KMTNet data [PDF]
EPJ Web of Conferences, 2017 The KMTNet (Korea Microlensing Telescope Network) was completed on October 2nd in 2015. There are three 1.6 m telescopes in Chile (CTIO), Australia (SSO) and South Africa (SAAO). The field of view of the CCD camera is 2 degree × 2 degree.
Jeon Young-Beom
doaj +2 more sources
The Catalina Surveys Southern periodic variable star catalogue [PDF]
, 2017 A. J. Drake +12 more
openalex +2 more sources
Imbalance Learning for Variable Star Classification [PDF]
Monthly notices of the Royal Astronomical Society, 2020 The accurate automated classification of variable stars into their respective subtypes is difficult. Machine learning–based solutions often fall foul of the imbalanced learning problem, which causes poor generalization performance in practice ...
Zafiirah Hosenie +4 more
semanticscholar +1 more source
Scalable End-to-end Recurrent Neural Network for Variable star classification [PDF]
Monthly notices of the Royal Astronomical Society, 2020 During the last decade, considerable effort has been made to perform automatic classification of variable stars using machine-learning techniques. Traditionally, light curves are represented as a vector of descriptors or features used as input for many
I. Becker +5 more
semanticscholar +1 more source
Sparse Identification of Variable Star Dynamics
Astrophysical Journal, 2022 Variable stars play a crucial role as standard candles and provide valuable insights into stellar physics. They can be modeled either through fully fledged hydrodynamical simulations or analytically as systems of coupled differential equations describing
M. Pasquato +8 more
semanticscholar +1 more source
A Catalog of RV Variable Star Candidates from LAMOST [PDF]
Astrophysical Journal Supplement Series, 2020 Radial velocity (RV) variable stars are important in astrophysics. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) spectroscopic survey has provided ∼6.5 million stellar spectra in its Data Release 4 (DR4).
Z. Tian +16 more
semanticscholar +1 more source
Annual parallax measurement of the Mira variable star BX Camelopardalis with VERA [PDF]
, 2020 We report results of astrometric VLBI observations toward a Mira variable star BX~Cam using the VLBI array "VERA". The observations were performed from February 2012 to November 2014.
Masako Matsuno +10 more
semanticscholar +1 more source
CCD VI time-series of the extremely metal-poor globular cluster M92: revisiting its variable star population [PDF]
, 2020 We present an analysis of \emph{VI} CCD time-series photometry of the Oo II type globular cluster M92. The variable star population of the cluster is studied with the aim of revising their classifications, identifications, frequency spectra and to select
M. A. Yepez +2 more
semanticscholar +1 more source
Variable Accretion onto Protoplanet Host Star PDS 70 [PDF]
Astrophysical Journal, 2020 The PDS 70 system has been subject to many studies in the past year following the discovery of two accreting planets in the gap of its circumstellar disk. Nevertheless, the mass accretion rate onto the star is still not well known.
T. Thanathibodee +8 more
semanticscholar +1 more source
An Optically Discovered Outburst from XTE J1859+226
The Astrophysical Journal, 2023 Using the Zwicky Transient Facility, in 2021 February we identified the first known outburst of the black hole X-ray transient XTE J1859+226 since its discovery in 1999. The outburst was visible at X-ray, UV, and optical wavelengths for less than 20 days,
Eric C. Bellm +15 more
doaj +1 more source