Results 11 to 20 of about 7,751,768 (367)

The TESS light curve of AI Phoenicis [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Accurate masses and radii for normal stars derived from observations of detached eclipsing binary stars are of fundamental importance for testing stellar models and may be useful for calibrating free parameters in these model if the masses and radii are sufficiently precise and accurate.
Patrick Gaulme   +14 more
openaire   +7 more sources

The bumpy light curve of supernova iPTF13z [PDF]

open access: yes, 2017
A Type IIn supernova (SN) is dominated by the interaction of SN ejecta with the circumstellar medium (CSM). Some SNe IIn (e.g., SN 2006jd) have episodes of re-brightening ("bumps") in their light curves.
Cao, Y.   +12 more
core   +6 more sources

Machine Learning Techniques for Stellar Light Curve Classification [PDF]

open access: yesAstronomical Journal, 2018
We apply machine learning techniques in an attempt to predict and classify stellar properties from noisy and sparse time series data. We preprocessed over 94 GB of Kepler light curves from MAST to classify according to ten distinct physical properties ...
Hinners, Trisha   +2 more
core   +4 more sources

A Turnover in the Radio Light Curve of GW170817 [PDF]

open access: yesThe Astrophysical Journal Letters, 2018
Abstract We present 2–9 GHz radio observations of GW170817 covering the period 125–200 days post-merger, taken with the Australia Telescope Compact Array (ATCA) and the Karl G. Jansky Very Large Array (VLA). Our observations demonstrate that the radio afterglow peaked at 149 ± 2 days post-merger and is now declining in flux density.
Dougal Dobie   +11 more
openaire   +7 more sources

Supernova 2013by: A Type IIL Supernova with a IIP-like light curve drop [PDF]

open access: yes, 2015
We present multi-band ultraviolet and optical light curves, as well as visual-wavelength and near-infrared spectroscopy of the Type II linear (IIL) supernova (SN) 2013by.
Arcavi, I.   +13 more
core   +2 more sources

LIGHT-CURVE ANALYSIS OF NEON NOVAE [PDF]

open access: yesThe Astrophysical Journal, 2015
ABSTRACT We analyzed light curves of five neon novae, QU Vul, V351 Pup, V382 Vel, V693 CrA, and V1974 Cyg, and determined their white dwarf (WD) masses and distance moduli on the basis of theoretical light curves composed of free–free and photospheric emission.
Izumi Hachisu, Mariko Kato
openaire   +5 more sources

The Pantheon+ Analysis: The Full Data Set and Light-curve Release [PDF]

open access: yesAstrophysical Journal, 2021
Here we present 1701 light curves of 1550 unique, spectroscopically confirmed Type Ia supernovae (SNe Ia) that will be used to infer cosmological parameters as part of the Pantheon+ SN analysis and the Supernovae and H 0 for the Equation of State of dark
D. Scolnic   +29 more
semanticscholar   +1 more source

The Pantheon+ Analysis: SuperCal-fragilistic Cross Calibration, Retrained SALT2 Light-curve Model, and Calibration Systematic Uncertainty [PDF]

open access: yesAstrophysical Journal, 2021
We present a recalibration of the photometric systems in the Pantheon+ sample of Type Ia supernovae (SNe Ia) including those in the SH0ES distance-ladder measurement of H 0.
D. Brout   +11 more
semanticscholar   +1 more source

Learning to Enhance Low-Light Image via Zero-Reference Deep Curve Estimation [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2021
This paper presents a novel method, Zero-Reference Deep Curve Estimation (Zero-DCE), which formulates light enhancement as a task of image-specific curve estimation with a deep network.
Chongyi Li, Chunle Guo, Chen Change Loy
semanticscholar   +1 more source

Zero-Reference Deep Curve Estimation for Low-Light Image Enhancement [PDF]

open access: yesComputer Vision and Pattern Recognition, 2020
The paper presents a novel method, Zero-Reference Deep Curve Estimation (Zero-DCE), which formulates light enhancement as a task of image-specific curve estimation with a deep network.
Chunle Guo   +6 more
semanticscholar   +1 more source

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