Results 1 to 10 of about 8,054,126 (389)

TESS–Gaia Light Curve: A PSF-based TESS FFI Light-curve Product [PDF]

open access: yesThe 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   +4 more sources

A Strong Jet Signature in the Late-time Light Curve of GW170817 [PDF]

open access: bronzeAstrophysical Journal, 2018
We present new 0.6–10 GHz observations of the binary neutron star merger GW170817 covering the period up to 300 days post-merger, taken with the upgraded Karl G.
K. P. Mooley   +21 more
openalex   +3 more sources

NEPTUNE'S DYNAMIC ATMOSPHERE FROM <i>KEPLER K2</i> OBSERVATIONS: IMPLICATIONS FOR BROWN DWARF LIGHT CURVE ANALYSES. [PDF]

open access: yesAstrophys J, 2016
Observations of Neptune with the Kepler Space Telescope yield a 49 day light curve with 98% coverage at a 1 minute cadence. A significant signature in the light curve comes from discrete cloud features.
Simon AA   +11 more
europepmc   +3 more sources

Multiwavelength light curve parameters of Cepheid variables [PDF]

open access: yesEPJ Web of Conferences, 2017
We present a comparative analysis of theoretical and observed light curves of Cepheid variables using Fourier decomposition. The theoretical light curves at multiple wavelengths are generated using stellar pulsation models for chemical compositions ...
Bhardwaj Anupam   +5 more
doaj   +2 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

Photosynthetic Light Response Curve and Photosynthetic Performance of Cacao (Theobroma cacao L.) Genotypes Grown Under Full Sun Field Conditions [PDF]

open access: yesPlants
The cultivation of Theobroma cacao L. in full sun conditions is expanding, but little is known about the physiological response of different genotypes under high irradiance in the field.
Enilton Nascimento de Santana   +5 more
doaj   +2 more sources

Interpretation of the OGLE Q2237+0305 microlensing light curve (1997-1999) [PDF]

open access: green, 2000
The four bright images of the gravitationally lensed quasar Q2237+0305 are being monitored from the ground (eg. OGLE collaboration, Apache Point Observatory) in the hope of observing a high magnification event (HME).
J. Stuart B. Wyithe   +2 more
openalex   +6 more sources

Light Curve Variations of AR Lacertae [PDF]

open access: greenJournal of Astronomy and Space Sciences, 1991
Sixteen unitary Light curves of AR Lac in B and V are made at Yonsei University Observatory in the period of 1980-1988. Some overview findings of light variations are made.
Il-Seong Nha
doaj   +1 more source

Light Curve Analysis of Contact Binary System V523 Cassiopeiae [PDF]

open access: goldJournal of Astronomy and Space Sciences, 2002
A total of 616 observations (308 in B, 308 in V) for V523 Cas was made on three nights from October 19 to 21 in 1999 using the 1.8m telescope with 2K CCD camera of the Bohyunsan Optical Astronomy Observatory of KAO.
J. H. Kim, J. H. Jeong
doaj   +3 more sources

LIGHT-CURVE ANALYSIS OF NEON NOVAE [PDF]

open access: yesThe Astrophysical Journal, 2015
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 ...
I. Hachisu, M. Kato
semanticscholar   +4 more sources

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