Results 61 to 70 of about 5,591,095 (382)
Discovering New Variable Stars at Key Stage 3 [PDF]
, 2017 Details of the London pilot of the `Discovery Project' are presented, where university-based astronomers were given the chance to pass on some real and applied knowledge of astronomy to a group of selected secondary school pupils.
Chubb, Katy +4 more
core +2 more sources
Semiregular Variable Stars [PDF]
Astrophysics, 2019 19pages, in Ukrainian, 5 figures, 4 ...
openaire +3 more sources
DISCOVERY OF A STRONGLY PHASE-VARIABLE SPECTRAL FEATURE IN THE ISOLATED NEUTRON STAR RX J0720.4–3125 [PDF]
, 2015 We present the discovery of a strongly phase-variable absorption feature in the X-ray spectrum of the nearby, thermally emitting, isolated neutron star RX J0720.4–3125.
A. Borghese +4 more
semanticscholar +1 more source
NEW VARIABLE STAR IN THE ORION CONSTELLATION
Odessa Astronomical Publications, 2017 New variable star with α = 05° 57m22s, δ = +20°15.5' (1950) was discovered with elements JD Max=2436999.28 + 0.2343973 E, range 15.6- 16.2m (pg) and asymmetry M-m=0.26.
I. S. Brjukhanov, V. P. Goranskij
doaj +1 more source
The History Goes On: Century Long Study of Romano’s Star
Galaxies, 2019 GR 290 (M 33 V0532 = Romano’s Star) is a unique variable star in the M33 galaxy, which simultaneously displays variability typical for luminous blue variable (LBV) stars and physical parameters typical for nitrogen-rich Wolf-Rayet (WR) stars (WN ...
Olga Maryeva +5 more
doaj +1 more source
A New Binary Star System of EW Type in Draco: GSC 03905-01870
, 2018 Discovery of a new binary star system (GSC 03905-01870 = USNO-B1.0 1431-0327922 = UCAC4 716-059522) in the Draco constellation is presented. It was discovered during a search for previously unreported eclipsing binary stars through the ASAS-SN database ...
Barquin, Salvador
core +3 more sources
Outage Probability Analysis of STAR-RIS Assisted NOMA Network With Correlated Channels
IEEE Communications Letters, 2022 In this letter, we investigate the outage probability of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted downlink non-orthogonal multiple access (NOMA) network over spatially correlated channels.
Tianxiong Wang +3 more
semanticscholar +1 more source
COMMISSION 27: VARIABLE STARS [PDF]
Proceedings of the International Astronomical Union, 2008 The Organizing Committee of Commission 27 has decided to again provide a somewhat abbreviated bibliography as part of this triennial report, as astronomy-centered search engines and on-line publications continue to blossom. We focus on selected highlights in variable star research over the past three years.
Kawaler +12 more
openaire +6 more sources
A peculiar young eruptive star in the dark cloud Lynds 1340
, 2011 We conducted a long-term optical photometric and spectroscopic monitoring of the strongly variable, accreting young sun-like star [KOS94] HA11, associated with the dark cloud Lynds 1340, that exhibited large amplitude (5-6 magnitudes in the I_C band ...
Acosta-Pulido +15 more
core +1 more source
Classification of Variable Star Light Curves with Convolutional Neural Network
GalaxiesThe classification of variable stars is essential for understanding stellar evolution and dynamics. With the growing volume of light curve data from extensive surveys, there is a need for automated and accurate classification methods. Traditional methods
Almat Akhmetali +6 more
doaj +1 more source