Results 11 to 20 of about 1,812,631 (345)

Rotation Periods of Asteroids Determined With Bootstrap Convex Inversion From ATLAS Photometry

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The rotation period is one of the fundamental physical characteristics of asteroids. It can be determined from photometric measurements by standard methods of time-series period analysis or by creating a physical model of an asteroid with the rotation ...
Josef Ďurech   +3 more
doaj   +1 more source

Featureless classification of light curves [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Accepted for publication in ...
Kügler, Sven Dennis   +2 more
openaire   +2 more sources

starry: Analytic Occultation Light Curves [PDF]

open access: yesThe Astronomical Journal, 2019
Abstract 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.
Rodrigo Luger   +5 more
openaire   +3 more sources

A new approach of analyzing GRB light curves [PDF]

open access: yes, 2005
We estimated the Txx quantiles of the cumulative GRB light curves using our recalculated background. The basic information of the light curves was extracted by multivariate statistical methods.
Balázs, L. G., Horváth, I., Varga, B.
core   +3 more sources

Dynamic equilibrium and oscillations of stars with uneven mass of particles of the medium

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
Background. The study examines a model of the structure and evolution of stars in dynamic equilibrium, supplemented by a new analysis of the zonal flow velocity, new elements for describing the evolution of the heat flow, and the introduction of unequal ...
Viktor M. Zhuravlev
doaj   +1 more source

Discrete Chi-square Method for Detecting Many Signals

open access: yesThe Open Journal of Astrophysics, 2020
Unambiguous detection of signals superimposed on unknown trends is difficult for unevenly spaced data. Here, we formulate the Discrete Chi-square Method (DCM) that can determine the best model for many signals superimposed on arbitrary polynomial trends.
Lauri Jetsu
doaj   +1 more source

Terrestrial Exoplanet Light Curves [PDF]

open access: yesProceedings of the International Astronomical Union, 2005
The phase or orbital light curves of extrasolar terrestrial planets in reflected or emitted light will contain information about their atmospheres and surfaces complementary to data obtained by other techniques such as spectrosopy. We show calculated light curves at optical and thermal infrared wavelengths for a variety of Earth-like and Earth-unlike ...
Gaidos, Eric   +2 more
openaire   +2 more sources

Magnetar Flare-driven Bumpy Declining Light Curves in Hydrogen-poor Superluminous Supernovae

open access: yesThe Astrophysical Journal, 2023
Recent observations indicate that hydrogen-poor superluminous supernovae (SLSNe-I) often display bumpy declining light curves. However, the cause of these undulations remains unclear.
Xiao-Fei Dong   +3 more
doaj   +1 more source

Modeling The Time Variability of Accreting Compact Sources [PDF]

open access: yes, 1999
We present model light curves for accreting Black Hole Candidates (BHC) based on a recently proposed model for their spectro-temporal properties. According to this model, the observed light curves and aperiodic variability of BHC are due to a series of ...
Abramowicz M. A.   +5 more
core   +2 more sources

Catalog of Integrated-light Star Cluster Light Curves in TESS

open access: yesThe Astronomical Journal, 2023
We present the first integrated-light, TESS-based light curves for star clusters in the Milky Way, Small Magellanic Cloud, and Large Magellanic Cloud. We explore the information encoded in these light curves, with particular emphasis on variability.
Tobin M. Wainer   +12 more
doaj   +1 more source

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