Results 101 to 110 of about 133,948 (219)

Search for Radio Pulsations from Neutron Star Candidates in Detached Binaries

The Astrophysical Journal
Recent optical astrometric and spectroscopic surveys have identified numerous neutron star (NS) candidates in nonaccreting detached binary systems, but their compact-object nature remains unconfirmed.
Shi-Jie Gao, Xiang-Dong Li, Song Wang, Kareem El-Badry, De-Jiang Zhou, Yi-Xuan Shao, Zhen Yan, Pei Wang, Ping Zhou, Jin-Lin Han   +9 more
doaj   +1 more source

SENSITIVITY OF ACTIVE PHASED ANTENNA ARRAY ELEMENT OF GURT RADIO TELESCOPE

Radio Physics and Radio Astronomy, 2016
Purpose: theoretical and experimental investigations of sensitivity by the signal-to-noise ratio criterion active antenna used as a phased array element of the GURT radio telescope of new generation.
P. L. Tokarsky, A. A. Konovalenko, S. N. Yerin, I. N. Bubnov   +3 more
doaj   +1 more source

An Online Measurement and Calibration Method for a Radio Telescope Sub-Reflector Support Structure Using Fiber Bragg Grating. [PDF]

Micromachines (Basel), 2023
Xu Q, Bao H.
europepmc   +1 more source

New radio telescope

Eos, Transactions American Geophysical Union, 1984
A new radio telescope to be placed atop 4205‐m‐high Mauna Kea in Hawaii will be the largest telescope of its kind ever built, and will open up previously unexplored submillimeter wavelengths to observation by astronomers when it begins operations in early 1986.
openaire   +1 more source

Constraining Electron‐Impact Ionization of O2 Through UV Aurora Observations at Ganymede

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract While photoionization rates of Ganymede's O2 ${\mathrm{O}}_{2}$ dominated atmosphere are well constrained, the contribution of electron‐impact ionization is rather uncertain. Previous quantitative estimates have relied on assumptions about densities and energy distributions of precipitating electrons, or on rare spacecraft measurements that ...
Stefan Duling, Joachim Saur, Darrell Strobel, Philippa Molyneux, Jamey R. Szalay, Thomas K. Greathouse   +5 more
wiley   +1 more source

MISTRAL observations during the commissioning phase at the Sardinia Radio Telescope [PDF]

EPJ Web of Conferences
MISTRAL is a new facility instrument open to the scientific community that will help investigate the ’missing baryon’ problem, as well as many other scientific cases from extragalactic astrophysics to solar system science.
Barbavara E., Isopi G., Attoli A., Battistelli E. S., de Bernardis P., Cacciotti F., Carboni G., Carretti E., Ciccalotti D., Columbro F., Coppolecchia A., Cruciani A., D’Alessandro G., De Petris M., Govoni F., Ladu A., Lamagna L., Marongiu P., Masi S., Murgia M., Navarrini A., Novelli A., Occhiuzzi A., Orlati A., Paiella A., Pettinari G., Piacentini F., Pili M., Pisanu T., Poppi S., Schirru L., Vargiu G. P.   +31 more
doaj   +1 more source

Upgrading of the L-P Band Cryogenic Receiver of the Sardinia Radio Telescope: A Feasibility Study. [PDF]

Sensors (Basel), 2022
Ladu A, Schirru L, Gaudiomonte F, Marongiu P, Angius G, Perini F, Vargiu GP.   +6 more
europepmc   +1 more source

GOES‐R Series X‐Ray Sensor (XRS): 2. On‐Orbit Measurements and Calibrations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract An X‐Ray Sensor (XRS) has been onboard each of the National Oceanic and Atmospheric Administration (NOAA) Geostationary Operational Environmental Satellites (GOES) since 1975. XRS measures full‐disk soft X‐ray irradiance in two wavelength bands, 0.05–0.4 nm and 0.1–0.8 nm.
Janet L. Machol, Stefan M. Codrescu, Courtney L. Peck, Elysia S. Lucas, James F. Mothersbaugh III, Thomas N. Woods, Ann Marie Mahon, James Negus, Donald L. Woodraska, Thomas D. Eden Jr., Francis G. Eparvier, Andrew R. Jones, Brooke Kotten, Laurel A. Rachmeler, Andrew C. Wilson, Brian T. Kress, Juan V. Rodriguez, Rodney A. Viereck   +17 more
wiley   +1 more source

Multi-wavelength behaviour of the radio galaxy SBS 1343+537: γ-ray flaring activity discovered by Fermi-LAT and coordinated Swift and SRT observations

Astronomy & Astrophysics
The SBS 1343+537 radio galaxy has a kiloparsec-scale radio jet, and complex kiloparsec-scale morphology. Although its classification is still uncertain, in literature it is indicated as a possible Fanaroff-Riley type I (FR-I) object with extended wings ...
Casaburo Fausto, Ciprini Stefano, Bartolini Chiara, Carboni Giuseppe, Teddy Cheung C. C., Egron Elise, Gasparrini Dario, Giacchino Federica, Iacolina Maria Noemi, Marchili Nicola, Pellizzoni Alberto, Principe Giacomo, Tombesi Francesco, Tramacere Andrea, Verrecchia Francesco   +14 more
doaj   +1 more source

Yebes 40 m radio telescope and the broad band NANOCOSMOS receivers at 7 mm and 3 mm for line surveys. [PDF]

Astron Astrophys, 2021
Tercero F, López-Pérez JA, Gallego JD, Beltrán F, García O, Patino-Esteban M, López-Fernández I, Gómez-Molina G, Diez M, García-Carreño P, Malo I, Amils R, Serna JM, Albo C, Hernández JM, Vaquero B, González-García J, Barbas L, López-Fernández JA, Bujarrabal V, Gómez-Garrido M, Pardo JR, Santander-García M, Tercero B, Cernicharo J, de Vicente P.   +25 more
europepmc   +1 more source