Results 11 to 20 of about 7,456 (165)

THE CARNEGIE SUPERNOVA PROJECT: LIGHT-CURVE FITTING WITH SNooPy [PDF]

The Astronomical Journal, 2010
58 pages, 19 figures.
Burns, Christopher R., Stritzinger, Maximilian, Phillips, M. M., Kattner, Shianne, Persson, S. E., Madore, Barry F., Freedman, Wendy L., Boldt, Luis, Campillay, Abdo, Contreras, Carlos, Folatelli, Gaston, Gonzalez, Sergio, Krzeminski, Wojtek, Morrell, Nidia, Salgado, Francisco, Suntzeff, Nicholas B.   +15 more
openaire   +3 more sources

The Carnegie Supernova Project I [PDF]

Astronomy & Astrophysics, 2018
Stripped-envelope (SE) supernovae (SNe) include H-poor (Type IIb), H-free (Type Ib), and He-free (Type Ic) events thought to be associated with the deaths of massive stars. The exact nature of their progenitors is a matter of debate with several lines of evidence pointing towards intermediate mass (Minit< 20M⊙) stars in binary systems, while in ...
Taddia, Francesco, Stritzinger, Maximilian, Bersten, Melina Cecilia, Baron, E., Burns, Christopher R., Contreras, Carlos, Holmbo, S., Hsiao, Eric, Morrell, Nidia, Phillips, Mark M., Sollerman, Jesper, Suntzeff, Nicholas B.   +11 more
openaire   +4 more sources

The Electric Field of the Undisturbed Atmosphere in the South of Western Siberia: A Case Study on Tomsk

Atmosphere, 2022
Currently, many researchers have an interest in the investigation of the electric field in the fair-weather electric environment along with its diurnal and seasonal variations across all regions of the world. However, a similar study in the southern part
Konstantin Pustovalov, Petr Nagorskiy, Mariya Oglezneva, Sergei Smirnov   +3 more
doaj   +1 more source

The Electric State of the Surface Atmosphere in the Mountain–Steppe Landscapes of Southern Siberia According to the Measurement Data in the Khakass–Tyva Expedition in 2022

Atmosphere, 2023
Currently, many researchers are interested in investigating the electric field in the fair-weather electric environment, along with its diurnal and seasonal variations across all regions of the world.
Konstantin Pustovalov, Petr Nagorskiy, Mariya Oglezneva, Artysh Sat, Sergei Smirnov   +4 more
doaj   +1 more source

Carnegie Supernova Project. II. Near-infrared Spectral Diversity and Template of Type Ia Supernovae

The Astrophysical Journal, 2023
We present the largest and most homogeneous collection of near-infrared (NIR) spectra of Type Ia supernovae (SNe Ia): 339 spectra of 98 individual SNe obtained as part of the Carnegie Supernova Project-II.
Jing Lu, Eric Y. Hsiao, Mark M. Phillips, Christopher R. Burns, Chris Ashall, Nidia Morrell, Lawrence Ng, Sahana Kumar, Melissa Shahbandeh, Peter Hoeflich, E. Baron, Syed Uddin, Maximilian D. Stritzinger, Nicholas B. Suntzeff, Charles Baltay, Scott Davis, Tiara R. Diamond, Gaston Folatelli, Francisco Förster, Jonathan Gagné, Lluís Galbany, Christa Gall, Santiago González-Gaitán, Simon Holmbo, Robert P. Kirshner, Kevin Krisciunas, G. H. Marion, Saul Perlmutter, Priscila J. Pessi, Anthony L. Piro, David Rabinowitz, Stuart D. Ryder, David J. Sand   +32 more
doaj   +1 more source

Efficient Convolutional Neural Network-Based Keystroke Dynamics for Boosting User Authentication

Sensors, 2023
The safeguarding of online services and prevention of unauthorized access by hackers rely heavily on user authentication, which is considered a crucial aspect of security.
Hussien AbdelRaouf, Samia Allaoua Chelloug, Ammar Muthanna, Noura Semary, Khalid Amin, Mina Ibrahim   +5 more
doaj   +1 more source

COMPARISON OF GROUND-BASED AND SATELLITE DATA ON SPATIOTEMPORAL DISTRIBUTION OF LIGHTNING DISCHARGES UNDER SOLAR MINIMUM

Solar-Terrestrial Physics, 2021
Worldwide maps of lightning activity have been obtained from the ground-based World Wide Lightning Location Network (WWLLN) for 2007–2009. We have compiled these maps separately for different seasons and UT periods, using WWLLN data on the time and ...
V.V. Denisenko, A.N. Lyakhov
doaj   +1 more source

Probing type Ia supernova properties using bolometric light curves from the Carnegie Supernova Project and the CfA Supernova Group [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
We present bolometric light curves constructed from multi-wavelength photometry of Type Ia supernovae (SNe Ia) from the Carnegie Supernova Project and the CfA Supernova Group, using near-infrared observations to provide robust constraints on host galaxy dust extinction.
R A Scalzo, E Parent, C Burns, M Childress, B E Tucker, P J Brown, C Contreras, E Hsiao, K Krisciunas, N Morrell, M M Phillips, A L Piro, M Stritzinger, N Suntzeff   +13 more
openaire   +4 more sources

Empirical evidence for multidecadal scale global atmospheric electric circuit modulation by the El Niño-Southern Oscillation

Environmental Research Letters, 2022
The El Niño-Southern Oscillation (ENSO) modifies precipitation patterns across the planet. Charge separation in disturbed weather and thunderstorms drives the global atmospheric electric circuit (GEC), hence ENSO-induced precipitation changes are ...
R Giles Harrison, Keri A Nicoll, Manoj Joshi, Ed Hawkins   +3 more
doaj   +1 more source

The Global Electric Circuit and Global Seismicity

Geosciences, 2021
Basing on the catalogue of earthquakes with a magnitude of M ≥ 4.5 for the period 1973–2017, a UT variation with an amplitude of ~10% in the number of earthquakes is revealed and compared with a UT variation in the ionospheric potential (IP) with an ...
Sergey Pulinets, Galina Khachikyan
doaj   +1 more source