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Related papers: Constraining Radio Emission from Magnetars

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Massive, rapidly-spinning magnetar remnants produced as a result of binary neutron star (BNS) mergers may deposit a fraction of their energy into the surrounding kilonova ejecta, powering a synchrotron radio signal from the interaction of…

Magnetars are highly-magnetised rotating neutron stars that are predominantly observed as high-energy sources. Six of this class of neutron star are known to also emit radio emission, and magnetars are, thus, a favoured model for the origin…

High Energy Astrophysical Phenomena · Physics 2023-11-27 Michael Kramer , Kuo Liu , Gregory Desvignes , Ramesh Karuppusamy , Ben W. Stappers

Pulsed non-thermal quiescent emission between 10 keV and around 150 keV has been observed in $\sim10$ magnetars. For inner magnetospheric models of such hard X-ray signals, resonant Compton upscattering of soft thermal photons from the…

High Energy Astrophysical Phenomena · Physics 2017-10-30 Zorawar Wadiasingh , Matthew G. Baring , Peter L. Gonthier , Alice K. Harding

We report on single-pulse observations of the Galactic Center magnetar PSR J1745$-$2900 that were made using the Parkes 64-m radio telescope with a central frequency of 3.1 GHz at five observing epochs between 2013 July and August. The…

High Energy Astrophysical Phenomena · Physics 2018-02-23 W. M. Yan , N. Wang , R. N. Manchester , Z. G. Wen , J. P. Yuan

The result of the 3-year neutrino magnetic moment measurement at the Kalinin Nuclear Power Plant with the GEMMA spectrometer is presented. Antineutrino-electron scattering is investigated. A HPGe detector of 1.5 kg placed at a distance of…

High Energy Physics - Experiment · Physics 2015-03-17 A. G. Beda , V. B. Brudanin , V. G. Egorov , D. V. Medvedev , V. S. Pogosov , M. V. Shirchenko , A. S. Starostin

We report on observations of four southern Anomalous X-ray Pulsars, (1RXS J170849.0-400910, 1E 1048.1-5937, 1E 1841-045 and AX J1845-0258), obtained at 1.4 GHz using the Parkes radio telescope. Radio pulsations from these sources have been…

Astrophysics · Physics 2009-11-11 M. Burgay , N. Rea , G. L. Israel , A. Possenti , L. Burderi , T. Di Salvo , N. D'Amico , L. Stella

We report on the optical observations of the gamma-ray pulsar PSR1706-44 performed with the Test Camera of the VLT-UT1 during the telescope Science Verification programme. With a limiting magnitude of V~ 27.5, these are the deepest optical…

Astrophysics · Physics 2019-08-15 R. P. Mignani , P. A. Caraveo , G. F. Bignami

JWST observed the magnetar 4U 0142+61 with the MIRI and NIRCam instruments within a 77 min time interval on 2022 September 20-21. The low-resolution MIRI spectrum and NIRCam photometry show that the spectrum in the wavelength range 1.4-11…

High Energy Astrophysical Phenomena · Physics 2024-07-19 Jeremy Hare , George G. Pavlov , Bettina Posselt , Oleg Kargaltsev , Tea Temim , Steven Chen

The recently discovered soft gamma-ray emission from the anomalous X-ray pulsar 1E 1841-045 has a luminosity L_g ~ 10^{36} ergs/s. This luminosity exceeds the spindown power by three orders of magnitude and must be fed by an alternative…

Astrophysics · Physics 2009-11-10 C. Thompson , A. M. Beloborodov

Extrasolar planets are expected to emit detectable low frequency radio emission. In this paper we present results from new low frequency observations of two extrasolar planetary systems (Epsilon Eridani and HD 128311) taken at 150 MHz with…

Astrophysics · Physics 2009-11-13 Samuel George , Ian Stevens

The first gamma-ray burst detections by Imaging Atmospheric Cherenkov Telescopes have been recently announced: GRB 190114C, detected by MAGIC, GRB 180720B and GRB 190829A, observed by H.E.S.S. A dedicated search for neutrinos in space and…

High Energy Astrophysical Phenomena · Physics 2021-03-31 ANTARES Collaboration , A. Albert , M. André , M. Anghinolfi , G. Anton , M. Ardid , J. -J. Aubert , J. Aublin , B. Baret , S. Basa , B. Belhorma , V. Bertin , S. Biagi , M. Bissinger , J. Boumaaza , M. Bouta , M. C. Bouwhuis , H. Brânzaş , R. Bruijn , J. Brunner , J. Busto , A. Capone , L. Caramete , J. Carr , V. Carretero , S. Celli , M. Chabab , T. N. Chau , R. Cherkaoui El Moursli , T. Chiarusi , M. Circella , A. Coleiro , M. Colomer-Molla , R. Coniglione , P. Coyle , A. Creusot , A. F. Díaz , G. de Wasseige , A. Deschamps , C. Distefano , I. Di Palma , A. Domi , C. Donzaud , D. Dornic , D. Drouhin , T. Eberl , N. El Khayati , A. Enzenhöfer , A. Ettahiri , P. Fermani , G. Ferrara , F. Filippini , L. Fusco , R. García , P. Gay , H. Glotin , R. Gozzini , K. Graf , C. Guidi , S. Hallmann , H. van Haren , A. J. Heijboer , Y. Hello , J. J. Hernández-Rey , J. Hößl , J. Hofestädt , F. Huang , G. Illuminati , C. W. James , B. Jisse-Jung , M. de Jong , P. de Jong , M. Jongen , M. Kadler , O. Kalekin , U. Katz , N. R. Khan-Chowdhury , A. Kouchner , I. Kreykenbohm , V. Kulikovskiy , R. Lahmann , R. Le Breton , D. Lefèvre , E. Leonora , G. Levi , M. Lincetto , D. Lopez-Coto , S. Loucatos , L. Maderer , J. Manczak , M. Marcelin , A. Margiotta , A. Marinelli , J. A. Martínez-Mora , S. Mazzou , K. Melis , P. Migliozzi , M. Moser , A. Moussa , R. Muller , L. Nauta , S. Navas , E. Nezri , A. Nuñez-Castiñeyra , B. O'Fearraigh , M. Organokov , G. E. Păvălaş , C. Pellegrino , M. Perrin-Terrin , P. Piattelli , C. Pieterse , C. Poirè , V. Popa , T. Pradier , N. Randazzo , S. Reck , G. Riccobene , A. Sánchez-Losa , D. F. E. Samtleben , M. Sanguineti , P. Sapienza , J. Schnabel , F. Schüssler , M. Spurio , Th. Stolarczyk , M. Taiuti , Y. Tayalati , T. Thakore , S. J. Tingay , B. Vallage , V. Van Elewyck , F. Versari , S. Viola , D. Vivolo , J. Wilms , A. Zegarelli , J. D. Zornoza , J. Zúñiga

We have observed 6 late-L and T dwarfs with the Karl G. Jansky Very Large Array (VLA) to investigate the presence of highly circularly polarized radio emission, associated with large-scale auroral currents. Previous surveys encompassing ~60…

Solar and Stellar Astrophysics · Physics 2016-02-17 Melodie M. Kao , Gregg Hallinan , J. Sebastian Pineda , Ivanna Escala , Adam Burgasser , Stephen Bourke , David Stevenson

We present interplanetary network localization, spectral, and time history information for four short-duration, hard spectrum gamma-ray bursts, GRB000607, 001025B, 001204, and 010119. All of these events were followed up with sensitive…

A survey of the Galactic plane in the region $-60\degree \leq l \leq 30\degree$, $|b| \leq 0.25\degree$ was carried out using the seven-beam Parkes Methanol Multibeam (MMB) receiver, which operates at a frequency of 6.5 GHz. Three pulsars…

We perform a detailed analysis of the synchrotron signals produced by Dark Matter annihilations and decays. We consider different set-ups for the propagation of electrons and positrons, the galactic magnetic field and Dark Matter…

High Energy Physics - Phenomenology · Physics 2025-07-29 Marco Cirelli , Marco Taoso

Using JWST near-infrared data of the inner Orion Nebula, \citet{Pearson_McCaughrean_2023} detected 40 binary systems they proposed to be Jupiter-Mass Binary Objects (JuMBOs) -- although their actual nature is still in debate. Only one of…

Earth and Planetary Astrophysics · Physics 2025-04-23 Luis F. Rodriguez , Laurent Loinard , Luis Zapata , Gisela N. Ortiz-Leon

The variable X-ray source 1E 1547.0-5408 was identified by Gelfand & Gaensler (2007) as a likely magnetar in G327.24-0.13, an apparent supernova remnant. No X-ray pulsations have been detected from it. Using the Parkes radio telescope, we…

Astrophysics · Physics 2009-11-13 F. Camilo , S. M. Ransom , J. P. Halpern , J. Reynolds

Magnetars are neutron stars having extreme magnetic field strengths. Study of their emission properties in quiescent state can help understand effects of a strong magnetic field on neutron stars. SGR 0501+4516 is a magnetar that was…

High Energy Astrophysical Phenomena · Physics 2018-01-24 Y. -L. Mong , C. -Y. Ng

We show that, by studying the arrival times of radio pulses from highly-magnetized pulsars, it may be possible to detect light spin-0 bosons (such as axions and axion-like particles) with a much greater sensitivity, over a broad particle…

Astrophysics · Physics 2010-11-23 Doron Chelouche , Eduardo I. Guendelman

A systematic survey measuring the submillimetre continuum luminosity in radio galaxies between redshifts z ~ 0.1 - 5 is currently in progress. The first results from observations with the bolometer array SCUBA on the JCMT suggest a trend of…

Astrophysics · Physics 2007-05-23 D. H. Hughes , J. S. Dunlop , E. N. Archibald , S. Rawlings , S. A. Eales
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