Results 21 to 30 of about 1,818,684 (284)

Prospects of Searching for Type Ia Supernovae with 2.5-m Wide Field Survey Telescope

open access: yesUniverse, 2022
Type Ia supernovae (SNe Ia) are thermonuclear explosions of carbon-oxygen white dwarfs (WDs) and are well-known as a distance indicator. However, it is still unclear how WDs increase their mass near the Chandrasekhar limit and how the thermonuclear ...
Maokai Hu   +6 more
doaj   +1 more source

Type Ia Supernova Light Curves [PDF]

open access: yesThe Astrophysical Journal, 2007
18 pages, submitted to ApJ on 8/18 ...
Woosley, S.   +3 more
openaire   +3 more sources

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

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

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

$Extrasolar~Storms$: Pressure-dependent Changes In Light Curve Phase In Brown Dwarfs From Simultaneous $Hubble$ and $Spitzer$ Observations [PDF]

open access: yes, 2016
We present $Spitzer$/IRAC Ch1 and Ch2 monitoring of six brown dwarfs during 8 different epochs over the course of 20 months. For four brown dwarfs, we also obtained simulataneous $HST$/WFC3 G141 Grism spectra during two epochs and derived light curves in
Apai, Dániel   +11 more
core   +3 more sources

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

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

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

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