Results 21 to 30 of about 5,423 (262)
Spectrum Sharing in the Sky and Space: A Survey
Sensors, 2022 In order to achieve the vision of seamless wireless communication coverage, a space–air–ground integrated network is proposed as a key component of the sixth-generation (6G) mobile communication system. However, the spectrum used by aerial networks has become gradually crowded with the increase in wireless devices.
Ling Zhang +5 more
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Infrared composition of the Large Magellanic Cloud
Earth, Planets and Space, 2013 The evolution of galaxies and the history of star formation in the Universe are among the most important topics in today’s astrophysics. Especially, the role of small, irregular galaxies in the star-formation history of the Universe is not yet clear ...
M. Siudek +5 more
doaj +1 more source
Hunting Gamma-Ray-emitting FR0 Radio Galaxies in Wide-field Sky Surveys
The Astrophysical Journal, 2023 The latest entry in the jetted active galactic nuclei (AGN) family is the Fanaroff–Riley type 0 (FR0) radio galaxies. They share several observational characteristics, e.g., nuclear emission and host galaxy morphology, with FR I sources; however, they ...
Meghana Pannikkote +2 more
doaj +1 more source
Symposium - International Astronomical Union, 1997 Among all spectral bands, the ultraviolet has long been neglected, despite the advantage of small space experiments: the sky is very dark, thus detection of faint objects does not compete against an enhanced background (O'Connell 1987) and the telescope construction techniques are very similar (at least longward of ∼50 nm) to those of optical astronomy.
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Six More Ultra-faint Milky Way Companions Discovered in the DECam Local Volume Exploration Survey
The Astrophysical Journal, 2023 We report the discovery of six ultra-faint Milky Way satellites identified through matched-filter searches conducted using Dark Energy Camera (DECam) data processed as part of the second data release of the DECam Local Volume Exploration (DELVE) survey ...
W. Cerny +33 more
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International Astronomical Union Colloquium, 1984 AbstractTechnical aspects of the production of photographic Sky Surveys and Atlasses are discussed. The need to optimize all factors, e.g. telescope site, telescope optics, mechanics and control system, hypersensitization, calibration, processing and reproduction is illustrated by the ESO 1m Schmidt telescope and the ESO Sky Surveys.
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The All-Sky 408 MHz Survey [PDF]
Symposium - International Astronomical Union, 1981 The 408 MHz All-sky Survey has been made from four radio continuum surveys observed between 1965 and 1978, using the Jodrell Bank MKI telescope, the Effelsberg 100 metre telescope and the Parkes 64 metre telescope. A detailed description of the survey data reduction and calibration methods, with preliminary astronomical results will soon be published ...
C. G. T. Haslam +2 more
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60 Microlensing Events from the Three Years of Zwicky Transient Facility Phase One
The Astrophysical Journal, 2023 Microlensing events have historically been discovered throughout the Galactic bulge and plane by surveys designed solely for that purpose. We conduct the first multiyear search for microlensing events on the Zwicky Transient Facility (ZTF), an all-sky ...
Michael S. Medford +4 more
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An Analysis of the Elements of an All Sky Survey [PDF]
Symposium - International Astronomical Union, 1985 One component of the NASA search for microwave signals of extraterrestrial intelligent origin will be an all sky survey at a significantly low limiting flux over a broad frequency range. We are currently designing an overall strategy which will permit this survey to be: (1) carried out using existing antennas in less than 3 years of observation time ...
Edward T. Olsen +2 more
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The Astronomical JournalOne crucial aspect of planning any large scale astronomical survey is constructing an observing strategy that maximizes reduced data quality. This is especially important for surveys that are rather heterogeneous and broad-ranging in their science goals.
Ilija Medan +14 more
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