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We present low-frequency spectral energy distributions of 60 known radio pulsars observed with the Murchison Widefield Array (MWA) telescope. We searched the GaLactic and Extragalactic All-sky MWA (GLEAM) survey images for 200-MHz continuum…

MASER (Measurements, Analysis, and Simulation of Emission in the Radio range) is a comprehensive infrastructure dedicated to time-dependent low frequency radio astronomy (up to about 50 MHz). The main radio sources observed in this spectral…

A selection of ultracool dwarfs are known to be radio active, with both gyrosynchrotron emission and the electron cyclotron maser instability being given as likely emission mechanisms. To explore whether ultracool dwarfs previously…

Astrophysics · Physics 2009-11-13 A. Antonova , J. G. Doyle , G. Hallinan , S. Bourke , A. Golden

A search for a diffuse flux of astrophysical muon neutrinos, using data collected by the ANTARES neutrino telescope is presented. A $(0.83\times 2\pi)$ sr sky was monitored for a total of 334 days of equivalent live time. The searched…

High Energy Astrophysical Phenomena · Physics 2011-01-27 ANTARES Collaboration , J. A. Aguilar , I. Al Samarai , A. Albert , M. André , M. Anghinolfi , G. Anton , S. Anvar , M. Ardid , A. C. Assis Jesus , T. Astraatmadja , J-J. Aubert , R. Auer , B. Baret , S. Basa , M. Bazzotti , V. Bertin , S. Biagi , C. Bigongiari , C. Bogazzi , M. Bou-Cabo , M. C. Bouwhuis , A. M. Brown , J. Brunner , J. Busto , F. Camarena , A. Capone , C. Carloganu , G. Carminati , J. Carr , S. Cecchini , Ph. Charvis , T. Chiarusi , M. Circella , R. Coniglione , H. Costantini , N. Cottini , P. Coyle , C. Curtil , M. P. Decowski , I. Dekeyser , A. Deschamps , C. Donzaud , D. Dornic , Q. Dorosti , D. Drouhin , T. Eberl , U. Emanuele , J-P. Ernenwein , S. Escoffier , F. Fehr , V. Flaminio , F. Folger , U. Fritsch , J-L. Fuda , S. Galata , P. Gay , G. Giacomelli , J. P. Gomez-Gonzalez , K. Graf , G. Guillard , G. Halladjian , G. Hallewell , H. van Haren , A. J. Heijboer , Y. Hello , J. J. Hernandez-Rey , B. Herold , J. Hossl , C. C. Hsu , M. de Jong , M. Kadler , N. Kalantar-Nayestanaki , O. Kalekin , A. Kappes , U. Katz , P. Kooijman , C. Kopper , A. Kouchner , V. Kulikovskiy , R. Lahmann , P. Lamare , G. Larosa , D. Lefèvre , G. Lim , D. Lo Presti , H. Loehner , S. Loucatos , F. Lucarelli , S. Mangano , M. Marcelin , A. Margiotta , J. A. Martinez-Mora , A. Mazure , A. Meli , T. Montaruli , M. Morganti , L. Moscoso , H. Motz , C. Naumann , M. Neff , D. Palioselitis , G. E. Pavalas , P. Payre , J. Petrovic , P. Piattelli , N. Picot-Clemente , C. Picq , V. Popa , T. Pradier , E. Presani , C. Racca , C. Reed , G. Riccobene , C. Richardt , K. Roensch , A. Rostovtsev , M. Rujoiu , G. V. Russo , F. Salesa , P. Sapienza , F. Schock , J-P. Schuller , R. Shanidze , F. Simeone , A. Spies , M. Spurio , J. J. M. Steijger , Th. Stolarczyk , M. Taiuti , C. Tamburini , L. Tasca , S. Toscano , B. Vallage , V. Van Elewyck , G. Vannoni , M. Vecchi , P. Vernin , G. Wijnker , E. de Wolf , H. Yepes , D. Zaborov , J. D. Zornoza , J. Zuniga

Digital radio arrays are widely used for the low-frequency radio astronomy as well as for detection of air-showers induced by high-energy cosmic rays and neutrinos. Since the radio emission from air-showers forms short broadband pulses with…

Ultrafast Kelvin Waves (UFKWs) have been recently discovered at Mars using measurements by the Mars Atmosphere and Evolution (MAVEN) Accelerometer (ACC) instrument and the Mars Reconnaissance Orbiter (MRO) Mars Climate Sound (MCS)…

Earth and Planetary Astrophysics · Physics 2019-05-17 Edward M. B. Thiemann , Nicholas D. Entin , Stephen Bougher , Erdal Yigit , David Pawlowski , Francis Eparvier

The Telescope Array (TA) is an experiment to observe Ultra-High Energy Cosmic Rays (UHECRs). TA's recent results, the energy spectrum and anisotropy based on the 6-year surface array data, and the primary composition obtained from the…

High Energy Astrophysical Phenomena · Physics 2019-08-13 M. Fukushima

Knowledge of Mars's ionosphere has been significantly advanced in recent years by observations from Mars Express (MEX) and lately MAVEN. A topic of particular interest are the interactions between the planet's ionospheric plasma and its…

This paper presents the Mars Dust Storm Detector (MDSD), a system that leverages the THz Opportunistic Integrated Sensing and Communications (OISAC) signals between Mars surface assets (rovers and landers) to extract environmental…

Signal Processing · Electrical Eng. & Systems 2024-12-17 Haofan Dong , Ozgur B. Akan

We have observed the Andromeda galaxy, Messier 31 (M31), at 6.7GHz with the Sardinia Radio Telescope. We mapped the radio emission in the C-band, re-analyzed WMAP and Planck maps, as well as other ancillary data, and we have derived an…

The quest for radio signals from technologically-advanced extraterrestrial intelligence has traditionally concentrated on the vicinity of 1.4 GHz. In this paper, we extend the search to unprecedented territories, detailing our extensive…

We have observed 37 bright, polarized radio sources with the Allen Telescope Array (ATA) to present a novel analysis of their Faraday rotation properties. Each source was observed during the commissioning phase with 2 to 4 100-MHz bands at…

The Askaryan Radio Array (ARA) is an ultra-high energy ($>10^{17}$ eV) cosmic neutrino detector in phased construction near the South Pole. ARA searches for radio Cherenkov emission from particle cascades induced by neutrino interactions in…

The Askaryan Radio Array (ARA) is an ultra-high energy (UHE) neutrino telescope at the South Pole consisting of an array of radio antennas aimed at detecting the Askaryan radiation produced by neutrino interactions in the ice. Currently,…

We use the Atacama Large sub/Millimetre Array (ALMA) to efficiently observe spectral lines across Bands 3, 4, 5, 6, 7, and 8 at high-resolution (0.5" - 0.1") for 16 bright southern Herschel sources at $1.5 < z < 4.2$. With only six and a…

We report a novel radio autocorrelation (AC) search for extraterrestrial intelligence (SETI). For selected frequencies across the terrestrial microwave window (1-10 GHz) observations were conducted at the Allen Telescope Array to identify…

We present the results of the longest yet undertaken search for apparently extragalactic radio bursts at the Bleien Radio Observatory covering 21000 hours (898 days). The data were searched for events of less than 50 ms FWHM duration…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Pascal Saint-Hilaire , Arnold O. Benz , Christian Monstein

Using the NASA Goldstone 70m antenna DSS 14 both singly and in coincidence with the 34 m antenna DSS 13 (21.7 km to the southeast), we have acquired approximately 12 hrs of livetime in a search for predicted pulsed radio emission from…

Astrophysics · Physics 2007-05-23 P. W. Gorham , K. M. Liewer , C. J. Naudet

RadioAstron is a project to use the 10m antenna on board the dedicated SPEKTR-R spacecraft, launched on 2011 July 18, to perform Very Long Baseline Interferometry from space - Space-VLBI. We describe the strategy and highlight the first…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-14 Kirill V. Sokolovsky

The principal results of daily observations with the RATAN-600 radio telescope of X-ray binary with relativistic jets microquasar SS433 in 1986--2003 are presented. We have measured the flux densities at 0.96, 2.3, 3.9, 7.7, 11.2 and 21.7…

Astrophysics · Physics 2007-05-23 S. A. Trushkin , N. N. Bursov , N. A. Nizhelskij