Results 21 to 30 of about 211,015 (286)

Aircraft surveys for air eDNA: probing biodiversity in the sky [PDF]

open access: yesPeerJ, 2023
Air is a medium for dispersal of environmental DNA (eDNA) carried in bioaerosols, yet the atmosphere is mostly unexplored as a source of genetic material encompassing all domains of life.
Kimberly L. Métris, Jérémy Métris
doaj   +2 more sources

Spectrum Sharing in the Sky and Space: A Survey

open access: yesSensors, 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
openaire   +3 more sources

Mapping The Sky - Surveys With Schmidt Telescopes [PDF]

open access: yesSymposium - International Astronomical Union, 1988
This paper describes the sky surveys carried out over the past 30 years by the three large Schmidt Telescopes; the Palomar 1.2m Schmidt, the ESO 1m Schmidt and the UK 1.2m Schmidt. Developments in photographic technology, the reproduction of the surveys as sky atlases and problems associated with the storage of original plates are discussed.
D. H. Morgan, S. B. Tritton
openaire   +1 more source

The Zwicky Transient Facility: Surveys and Scheduler [PDF]

open access: yes, 2019
We present a novel algorithm for scheduling the observations of time-domain imaging surveys. Our Integer Linear Programming approach optimizes an observing plan for an entire night by assigning targets to temporal blocks, enabling strict control of the ...
Barlow, Tom   +13 more
core   +4 more sources

Infrared composition of the Large Magellanic Cloud

open access: yesEarth, 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

open access: yesThe 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

Some Pattern Recognition Challenges in Data-Intensive Astronomy [PDF]

open access: yes, 2006
We review some of the recent developments and challenges posed by the data analysis in modern digital sky surveys, which are representative of the information-rich astronomy in the context of Virtual Observatory.
Djorgovski, S. G.   +6 more
core   +2 more sources

New SETI Sky Surveys for Radio Pulses

open access: yes, 2010
Berkeley conducts 7 SETI programs at IR, visible and radio wavelengths. Here we review two of the newest efforts, Astropulse and Fly's Eye. A variety of possible sources of microsecond to millisecond radio pulses have been suggested in the last several
Andrew Siemion   +17 more
core   +1 more source

Cross-correlation cosmography with HI intensity mapping [PDF]

open access: yes, 2015
The cross-correlation of a foreground density field with two different background convergence fields can be used to measure cosmographic distance ratios and constrain dark energy parameters.
Bacon, David   +2 more
core   +3 more sources

Ultraviolet Sky Surveys [PDF]

open access: yesSymposium - 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.
openaire   +2 more sources

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