output
19962026
most citedLOFAR: The LOw-Frequency ARray

2.7k citations

Showing 2018 · astro-ph.HEShow all

18 papers · 2 filters

astro-ph.HE2018★ 173 cited

A -ray determination of the Universe's star-formation history

LAT Collaboration, M. Ajello, K. Helgason +4

The light emitted by all galaxies over the history of the Universe produces the extragalactic background light (EBL) at ultraviolet, optical, and infrared wavelengths. The EBL is a…

astro-ph.HE2018★ 65 cited

Searching a Thousand Radio Pulsars for Gamma-ray Emission

David A. Smith, Philippe Bruel, Ismaël Cognard +15

Identifying as many gamma-ray pulsars as possible in the Fermi Large Area Telescope (LAT) data helps test pulsar emission models by comparing predicted and observed properties for…

astro-ph.HE2018★ 37 cited

Unresolved Gamma-Ray Sky through its Angular Power Spectrum

M. Ackermann, M. Ajello, L. Baldini +107

The gamma-ray sky has been observed with unprecedented accuracy in the last decade by the Fermi large area telescope (LAT), allowing us to resolve and understand the high-energy Un…

astro-ph.HE2018★ 36 cited

A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars

J. W. McKee, B. W. Stappers, C. G. Bassa +13

We have studied 4265 giant pulses (GPs) from the millisecond pulsar B1937+21; the largest-ever sample gathered for this pulsar, in observations made with the Large European Array f…

astro-ph.HE2018★ 293 cited

The Giant Radio Array for Neutrino Detection (GRAND): Science and Design

GRAND Collaboration, Jaime Alvarez-Muniz, Rafael Alves Batista +48

The Giant Radio Array for Neutrino Detection (GRAND) is a planned large-scale observatory of ultra-high-energy (UHE) cosmic particles, with energies exceeding 10^8 GeV. Its goal is…

astro-ph.HE2018★ 108 cited

LOFAR discovery of a 23.5-second radio pulsar

C. M. Tan, C. G. Bassa, S. Cooper +16

We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR…

astro-ph.HE2018★ 15 cited

The first ultraviolet detection of the Large Magellanic Cloud pulsar PSR B0540-69 and its multi-wavelength properties

R. P. Mignani, A. Shearer, A. de Luca +9

We observed the young ( yrs) pulsar PSR B0540-69 in the near-ultraviolet (UV) for the first time with the Space Telescope Imaging Spectrograph (STIS) aboard the {\em Hub…

astro-ph.HE2018★ 39 cited

VERITAS and Fermi-LAT observations of new HAWC sources

VERITAS Collaboration, A. U. Abeysekara, A. Archer +280

The HAWC (High Altitude Water Cherenkov) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100~GeV) gamma-ray sources based on 507 days of obs…

astro-ph.HE2018★ 41 cited

Discovery of synchronous X-ray and radio moding of PSR B0823+26

W. Hermsen, L. Kuiper, R. Basu +10

Simultaneous observations of PSR B0823+26 with ESA's XMM-Newton, the Giant Metrewave Radio Telescope and international stations of the Low Frequency Array revealed synchronous X-ra…

astro-ph.HE2018★ 31 cited

Improving timing sensitivity in the microhertz frequency regime: limits from PSR J17130747 on gravitational waves produced by super-massive black-hole binaries

B. B. P. Perera, B. W. Stappers, S. Babak +25

We search for continuous gravitational waves (CGWs) produced by individual super-massive black-hole binaries (SMBHBs) in circular orbits using high-cadence timing observations of P…

astro-ph.HE2018★ 176 cited

Search for Spatial Extension in High-Latitude Sources Detected by the Fermi Large Area Telescope

LAT Collaboration, Jonathan Biteau

We present a search for spatial extension in high-latitude () sources in recent Fermi point source catalogs. The result is the Fermi High-Latitude Extended Sources Cat…

astro-ph.HE2018★ 53 cited

Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar

C. J. Clark, H. J. Pletsch, J. Wu +18

Millisecond pulsars (MSPs) are old neutron stars that spin hundreds of times per second and appear to pulsate as their emission beams cross our line of sight. To date, radio pulsat…

astro-ph.HE2018★ 116 cited

Tests of Gravitational Symmetries with Pulsar Binary J1713+0747

W. W. Zhu, G. Desvignes, N. Wex +50

Symmetries play an important role in modern theories of gravity. The strong equivalence principle (SEP) constitutes a collection of gravitational symmetries which are all implement…

astro-ph.HE2018★ 22 cited

Low-frequency pulse profile variation in PSR B2217+47: evidence for echoes from the interstellar medium

D. Michilli, J. W. T. Hessels, J. Y. Donner +17

We have observed a complex and continuous change in the integrated pulse profile of PSR B2217+47, manifested as additional components trailing the main peak. These transient compon…

astro-ph.HE2018★ 25 cited

LOFAR 150-MHz observations of SS 433 and W 50

J. W. Broderick, R. P. Fender, J. C. A. Miller-Jones +28

We present LOFAR high-band data over the frequency range 115-189 MHz for the X-ray binary SS 433, obtained in an observing campaign from 2013 February - 2014 May. Our results inclu…

astro-ph.HE2018★ 54 cited

The Low-Frequency Radio Eclipses of the Black Widow Pulsar J1810+1744

E. J. Polzin, R. P. Breton, A. O. Clarke +10

We have observed and analysed the eclipses of the black widow pulsar J1810+1744 at low radio frequencies. Using LOw-Frequency ARray (LOFAR) and Westerbork Synthesis Radio Telescope…

astro-ph.HE2018★ 46 cited

Low-Frequency Radio Absorption in Cassiopeia A

M. Arias, J. Vink, F. de Gasperin +3

Cassiopeia A is one of the best-studied supernova remnants. Its shocked ejecta emits brightly in radio and X-rays. Its unshocked ejecta can be studied through infrared emission, th…

astro-ph.HE2018★ 17 cited

PSR J1618-3921: a recycled pulsar in an eccentric orbit

F. Octau, I. Cognard, L. Guillemot +4

PSR~J16183921 is an -ms pulsar in a -d orbit around a likely low-mass He white dwarf companion, discovered in a survey of the intermediate Galactic latitudes at 140…