Results 11 to 20 of about 1,818,684 (284)
Assigning Degrees of Stochasticity to Blazar Light Curves in the Radio Band Using Complex Networks [PDF]
Entropy, 2022 We focus on characterizing the high-energy emission mechanisms of blazars by analyzing the variability in the radio band of the light curves of more than a thousand sources.
Belén Acosta-Tripailao +3 more
doaj +2 more sources
Fitting Blazhko light curves [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 The correct amplitude and phase modulation formalism of the Blazhko modulation is given. The harmonic order dependent amplitude and phase modulation form is equivalent with the Fourier decomposition of multiplets.
Alcock +26 more
core +3 more sources
STARRY: Analytic Occultation Light Curves [PDF]
The Astronomical Journal, 2018 We derive analytic, closed form, numerically stable solutions for the total flux received from a spherical planet, moon or star during an occultation if the specific intensity map of the body is expressed as a sum of spherical harmonics.
Agol, Eric +5 more
core +4 more sources
Late Light Curves of Normally-Luminous Type Ia Supernovae [PDF]
New Astronomy Reviews, 2006 The use of Type Ia supernovae as cosmological tools has reinforced the need to better understand these objects and their light curves. The light curves of Type Ia supernovae are powered by the nuclear decay of $^{56}Ni \to ^{56}Co \to ^{56}Fe$.
Candia +17 more
core +6 more sources
TESS–Gaia Light Curve: A PSF-based TESS FFI Light-curve Product
The Astronomical Journal, 2023 The Transiting Exoplanet Survey Satellite (TESS) is continuing its second extended mission after 55 sectors of observations. TESS publishes full-frame images (FFIs) at a cadence of 1800, 600, or 200 s, allowing light curves to be extracted for stars ...
Te Han, Timothy D. Brandt
doaj +3 more sources
Analysis of Late--time Light Curves of Type IIb, Ib and Ic Supernovae
Monthly Notices of the Royal Astronomical Society, 2015 The shape of the light curve peak of radioactive--powered core--collapse "stripped--envelope" supernovae constrains the ejecta mass, nickel mass, and kinetic energy by the brightness and diffusion time for a given opacity and observed expansion velocity.
Clocchiatti, A. +2 more
core +3 more sources
Feature-Based Classification Neural Network for Kepler Light Curves from Quarter 1
Universe, 2023 Determining the types of light curves has been a challenge due to the massive amount of light curves generated by large sky survey programs. In the literature, the light curves classification methods are overly dependent on the imaging quality of the ...
Jing Yan +4 more
doaj +1 more source
Mass Ratio and Spot Parameter Estimation from Eclipsing Binary Star Light Curves
Galaxies, 2022 Eclipsing binary stars have a rich history of contributing to the field of stellar astrophysics. Most of the available information on the fundamental properties of stars has come from the analysis of observations of binaries. The availability of powerful
Dirk Terrell
doaj +1 more source
Diversity of Kilonova Light Curves [PDF]
The Astrophysical Journal, 2020 Abstract We perform radiative transfer simulations for kilonova in various situations, including the cases of prompt collapse to a black hole from neutron star mergers, high-velocity ejecta possibly accelerated by magnetars, and a black hole–neutron star merger.
Kyohei Kawaguchi +2 more
openaire +3 more sources
A Dual Perspective on Geostationary Satellite Monitoring Using DSLR RGB and sCMOS Sloan Filters
Aerospace, 2023 This paper outlines a multi-system approach for ground-based optical observations and the characterization of satellites in geostationary orbit. This multi-system approach is based on an in-depth analysis of the key factors to consider for light curve ...
Lorenzo Mariani +10 more
doaj +1 more source