Results 1 to 10 of about 811,417 (193)

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

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   +3 more sources

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 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

Analysis and characterization of X-ray flare of Mkn 421 using XMM-Newton observation 0658801301

open access: yesBibechana, 2023
This research work was carried out to analyze the X-ray flares in Blazar Mkn 421 using data from XMM-Newton observation (Observation ID: 0658801301) that lasted for 8 hours.
Rajendra Neupane, Niraj Dhital
doaj   +3 more sources

Classification of Low Earth Orbit (LEO) Resident Space Objects’ (RSO) Light Curves Using a Support Vector Machine (SVM) and Long Short-Term Memory (LSTM)

open access: yesSensors, 2023
Light curves are plots of brightness measured over time. In the field of Space Situational Awareness (SSA), light curves of Resident Space Objects (RSOs) can be utilized to infer information about an RSO such as the type of object, its attitude, and its ...
Randa Qashoa, Regina Lee
doaj   +1 more source

Spectroscopic Study Of Light Curve And Physical Properties For SN2010jl [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2013
:In this work, The physical properties were studies for ( supernova 2010jl) - which discovered on 2010 Nov. 3 - depending on (Oort Model ), optical spectrum curve and by applying special mathematical equations.
Adil N. Ayyash, Zeyad A. Saleh
doaj   +1 more source

Diversity of Kilonova Light Curves [PDF]

open access: yesThe 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

CCD Photometry of Contact Binary WZ Cephei [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2008
We present the full BVR light curves and five times of minima of WZ Cep to provides a complete photometric solution and to confirm the long term variation of the light curves.
Woo-Baik Lee   +2 more
doaj   +1 more source

Fitting Blazhko light curves [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
8 pages, 5 figures.
B. Szeidl   +4 more
openaire   +3 more sources

Light curve analysis of main belt asteroids 4747, 5255, 11411, 15433, 17866

open access: yesOpen Astronomy, 2023
The main belt asteroids 4747, 5255, 11411, 15433, and 17866 were studied at the Baldone Astrophysical Observatory in the time span range 2018–2022. The obtained light curve data together with published Minor Planet Center data are analyzed with Fourier ...
Eglitis Ilgmars, Kristers Nagainis
doaj   +1 more source

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