Results 1 to 10 of about 14,735 (265)

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

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

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.
Masaomi Tanaka   +3 more
openaire   +4 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

Light on curved backgrounds [PDF]

open access: yesPhysical Review D, 2015
34 pages, 10 ...
S. Nelson   +2 more
openaire   +3 more sources

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

Photometric Analysis of CN Andromeda Short Period Binary Star

open access: yesZanco Journal of Pure and Applied Sciences, 2023
In this work, the short period binary system named (CN Andromeda) have been chosen to be analyze with B,V light curves using the PyWD2015-Qt5 program .The physical and geometrical parameters have been gained and contrasted with previous results of ...
Helen Zrar Hamad Ameen ,Ismail Musa Murad
doaj   +1 more source

Focusing light in a curved-space [PDF]

open access: yesOptics Express, 2010
We use transformation optics to demonstrate 2D silicon nanolenses, with wavelength-independent focal point. The lenses are designed and fabricated with dimensions ranging from 5.0 microm x 5.0 microm to 20 microm x 20 microm. According to numerical simulations the lenses are expected to focus light over a broad wavelength range, from 1.30 mum to 1.60 ...
Lucas H. Gabrielli   +3 more
openaire   +3 more sources

Featureless classification of light curves [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Accepted for publication in ...
Nikolaos Gianniotis   +2 more
openaire   +3 more sources

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