Results 21 to 30 of about 160,396 (265)
Evidence for TeV gamma ray emission from Cassiopeia A [PDF]
, 2001 232 hours of data were accumulated from 1997 to 1999, using the HEGRA Stereoscopic Cherenkov Telescope System to observe the supernova remnant Cassiopeia A.
A. Akhperjanian +86 more
core +2 more sources
The Astrophysical Journal, 2023 Symbolic regression (SR) is the study of algorithms that automate the search for analytic expressions that fit data. While recent advances in deep learning have generated renewed interest in such approaches, the development of SR methods has not been ...
Wassim Tenachi +2 more
doaj +1 more source
GRB030406 an extremely hard burst outside of the INTEGRAL field of view [PDF]
, 2006 Using the IBIS Compton mode, the INTEGRAL satellite is able to detect and localize bright and hard GRBs, which happen outside of the nominal INTEGRAL telescopes field of view. We have developed a method of analyzing such INTEGRAL data to obtain the burst
A. Rau +26 more
core +4 more sources
The Nature of the Low-Metallicity ISM in the Dwarf Galaxy NGC 1569 [PDF]
, 2002 We are modeling the spectra of dwarf galaxies from infrared to submillimeter wavelengths to understand the nature of the various dust components in low-metallicity environments, which may be comparable to the ISM of galaxies in their early evolutionary ...
Bernard, J. -P. +5 more
core +2 more sources
Cryogenic MMIC low noise amplifiers [PDF]
, 2000 Monolithic (MMIC) and discrete transistor (MIC) low noise amplifiers are compared on the basis of performance, cost, and reliability. The need for cryogenic LNA’s for future large microwave arrays for radio astronomy is briefly discussed and data is ...
Erickson, N. +4 more
core +1 more source
OGLE-2009-BLG-092/MOA-2009-BLG-137: A Dramatic Repeating Event With the Second Perturbation Predicted by Real-Time Analysis [PDF]
, 2010 We report the result of the analysis of a dramatic repeating gravitational microlensing event OGLE-2009-BLG-092/MOA-2009-BLG-137, for which the light curve is characterized by two distinct peaks with perturbations near both peaks.
A. Allan +129 more
core +3 more sources
Frontiers in Marine Science, 2021 High-impact ocean weather events and climate extremes can have devastating effects on coastal zones and small islands. Marine Disaster Risk Reduction (DRR) is a systematic approach to such events, through which the risk of disaster can be identified ...
Francesco Trotta +8 more
doaj +1 more source
The Planetary Science Journal, 2023 We document the evolution of the north–south asymmetry (NSA) of Titan’s haze albedo during the Cassini mission between 2004 and 2017. We analyze coadded cube images taken at 96 distinct wavelengths between 0.35 and 1.05 μ m by the Cassini Visual and ...
Aadvik S. Vashist +4 more
doaj +1 more source
The NEO Surveyor Near-Earth Asteroid Known Object Model
The Planetary Science Journal, 2023 The known near-Earth object (NEO) population consists of over 32,000 objects, with a yearly discovery rate of over 3000 NEOs per year. An essential component of the next generation of NEO surveys is an understanding of the population of known objects ...
Tommy Grav +6 more
doaj +1 more source
Updated Atomic Data and Calculations for X-ray Spectroscopy
, 2012 We describe the latest release of AtomDB, version 2.0.2, a database of atomic data and a plasma modeling code with a focus on X-ray astronomy. This release includes several major updates to the fundamental atomic structure and process data held within ...
A. R. Foster +48 more
core +1 more source