Results 21 to 30 of about 661,289 (260)
RobPer: An R Package to Calculate Periodograms for Light Curves Based on Robust Regression
Journal of Statistical Software, 2016 An important task in astroparticle physics is the detection of periodicities in irregularly sampled time series, called light curves. The classic Fourier periodogram cannot deal with irregular sampling and with the measurement accuracies that are ...
Anita M. Thieler +2 more
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Spectral and Photometric Studies of NGC 7469 in the Optical Range
UniverseThe galaxy NGC 7469 is a bright infrared source with an active galactic nucleus (AGN) and an intense star-forming region with a radius of approximately 500 parsecs, where the star formation rate is estimated to be 20–50 M⊙yr−1.
Saule Shomshekova +5 more
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SPECTRAL AND PHOTOMETRIC STUDIES OF MRK6 AND MRK1040 IN THE OPTICAL RANGE
Eurasian Physical Technical JournalThis paper is dedicated to the study of variability in active galactic nuclei, which play a key role in understanding the physical processes occurring in their central regions.
S.A. Shomshekova +5 more
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo +5 more
wiley +1 more source
Light Curves of Supernovae [PDF]
International Astronomical Union Colloquium, 1996 Although emerging from a range of progenitor stars and the product of different explosion mechanisms the light curves of the various supernova types are shaped mainly by radioactive power. Core-collapse supernovae have in addition early peaks from shock breakout with a subsequent cooling phase and massive extended stars a recombination (plateau) phase.
openaire +1 more source
FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source
Accurate and Robust Stellar Rotation Periods Catalog for 82771 Kepler Stars Using Deep Learning
The Astronomical JournalWe propose a new framework to predict stellar properties from light curves. We analyze the light-curve data from the Kepler space mission and develop a novel tool for deriving the stellar rotation periods for main-sequence stars.
Ilay Kamai, Hagai B. Perets
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Spin Period Evolution of Decommissioned GLONASS Satellites
AerospaceLight curve analysis of defunct satellites is critical for characterizing their rotational motion. An accurate understanding of this aspect will benefit active debris removal and on-orbit servicing missions as part of the solution to the space debris ...
Abdul Rachman +2 more
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Simple Method of Light Field Calculation for Shaping of 3D Light Curves
Photonics, 2023 We propose a method for generating three-dimensional light fields with given intensity and phase distributions using purely phase transmission functions.
Svetlana N. Khonina +4 more
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Can Kilonova Light Curves Be Standardized? [PDF]
The Astrophysical Journal Letters, 2019 Abstract Binary neutron star (NS) mergers have been recently confirmed to be the progenitors of the optical transients kilonovae (KNe). KNe are powered by the radioactive decay of neutron-rich elements (r-process elements), which are believed to be the product of disruption of NSs during their merger.
Rahul Kashyap +2 more
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