Results 71 to 80 of about 134,290 (279)

Blazar jet physics in the age of Fermi

open access: yes, 2010
The impact of the Fermi Gamma-ray Space Telescope on blazar research is reviewed. This includes a brief description of the Fermi Large Area Telescope, a summary of the various classes of extragalactic sources found in the First Large Area Telescope AGN ...
Dermer, Charles D.
core   +1 more source

Deep radio images of the HEGRA and Whipple TeV sources in the Cygnus OB2 region [PDF]

open access: yes, 2007
Context. The modern generation of Cherenkov telescopes has revealed a new population of gamma-ray sources in the Galaxy. Some of them have been identified with previously known X-ray binary systems while other remain without clear counterparts a lower ...
Abdo   +22 more
core   +3 more sources

Multimodal Locomotion of Soft Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
This review comprehensively surveys recent advances in multimodal locomotion within soft robotics. Typical locomotion modes are summarized and categorized. Furthermore, the underlying mechanisms enabling multimodal locomotion are discussed and classified into three primary categories: active control‐based, reconfiguration‐based, and environment ...
Zihao Yuan   +4 more
wiley   +1 more source

MID-Radio Telescope, Single Pixel Feed Packages for the Square Kilometer Array: An Overview

open access: yesIEEE Journal of Microwaves, 2021
The Square Kilometre Array (SKA) project is an international effort to build the world's largest radio telescope, enabling science with unprecedented detail and survey speed.The project spans over a decade and is now at a mature stage, ready to enter the
Alice Pellegrini   +12 more
doaj   +1 more source

CLASS B0827+525: `Dark lens' or binary radio-loud quasar? [PDF]

open access: yes, 2000
We present radio, optical, near-infrared and spectroscopic observations of the source B0827+525. We consider this source as the best candidate from the Cosmic Lens All-Sky Survey (CLASS) for a `dark lens' system or binary radio-loud quasar.
Blandford, R. D.   +14 more
core   +2 more sources

Search for possible exomoons with FAST telescope

open access: yes, 2017
Our knowledge of the Solar System, encourages us to beleive that we might expect exomoons to be present around some of the known exoplanets. With present hardware and existing optical astronomy methods we shall not be able to find exomoons at least 10 ...
Lukic, Dragan
core   +1 more source

Fermi Large Area Telescope Observations of Misaligned AGN [PDF]

open access: yes, 2010
Analysis is presented on 15 months of data taken with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope for 11 non-blazar AGNs, including 7 FRI radio galaxies and 4 FRII radio sources consisting of 2 FRII radio galaxies and 2 steep ...
A. A. Abdo   +218 more
core   +4 more sources

CREATING THE RT-32 RADIO TELESCOPE ON THE BASIC OF MARK-4B ANTENNA SYSTEM. 1. MODERNIZATION PROJECT AND FIRST RESULTS

open access: yesRadio Physics and Radio Astronomy, 2019
Purpose: Creating a radio telescope based on the MARK-4B antenna system being developed for telecommunication applications, determining the possibilities of using the broadband multirange operation of a beam wave-guided antenna system and to evaluate ...
O. M. Ulyanov   +26 more
doaj   +1 more source

A new search for distant radio galaxies in the Southern hemisphere -- III. Optical spectroscopy and analysis of the MRCR--SUMSS sample

open access: yes, 2009
We have compiled a sample of 234 ultra-steep-spectrum(USS)-selected radio sources in order to find high-redshift radio galaxies (HzRGs). The sample is in the southern sky at -40 deg < DEC < -30 deg which is the overlap region of the 408-MHz Revised ...
Allen   +102 more
core   +1 more source

Design of a Wideband Radio Telescope [PDF]

open access: yes2007 IEEE Aerospace Conference, 2007
A wideband Radio Telescope is being designed for use in the Goldstone Apple Valley Radio Telescope program. It uses an existing 34-meter antenna retrofitted with a tertiary offset mirror placed at the apex of the main reflector. It can be rotated to use two feeds that cover the 1.2 to 14 GHz band.
Imbriale, William A.   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy