activity
20122026
most citedLOFAR facet calibration

282 citations · 1.1k across the 23 of their papers we have counts for

collaborators

25 papers

astro-ph.GA2026

Accelerated gas flow along Ophiuchus B44 filament: Breaking Position-Position-Velocity degeneracy

J. Alves, C. Zucker, C. Lada +15

(Abridged) Stellar feedback from massive stars in the Upper-Sco has been proposed to have reshaped the gas in the nearby Ophiuchus complex. In this framework, feedback organizes th…

physics.comp-ph2023★ 1 cited

Inferring Evidence from Nested Sampling Data via Information Field Theory

Margret Westerkamp, Jakob Roth, Philipp Frank +2

Nested sampling provides an estimate of the evidence of a Bayesian inference problem via probing the likelihood as a function of the enclosed prior volume. However, the lack of pre…

astro-ph.IM2023★ 2 cited

A BRAIN study to tackle image analysis with artificial intelligence in the ALMA 2030 era

Fabrizia Guglielmetti, Michele Delli Veneri, Ivano Baronchelli +9

An ESO internal ALMA development study, BRAIN, is addressing the ill-posed inverse problem of synthesis image analysis employing astrostatistics and astroinformatics. These emergin…

quant-ph2023

Quantum Measurement and Objective Classical Reality

Vishal Johnson, Philipp Frank, Torsten Enßlin

We explore quantum measurement in the context of Everettian unitary quantum mechanics and construct an explicit unitary measurement procedure. We propose the existence of prior cor…

astro-ph.GA2023★ 166 cited

A parsec-scale Galactic 3D dust map out to 1.25 kpc from the Sun

Gordian Edenhofer, Catherine Zucker, Philipp Frank +4

High-resolution 3D maps of interstellar dust are critical for probing the underlying physics shaping the structure of the interstellar medium, and for foreground correction of astr…

cs.IT2023

Attention to Entropic Communication

Torsten Enßlin, Carolin Weidinger, Philipp Frank

The concept of attention, numerical weights that emphasize the importance of particular data, has proven to be very relevant in artificial intelligence. Relative entropy (RE, aka K…

astro-ph.HE2023

Reconstructing Galactic magnetic fields from local measurements for backtracking ultra-high-energy cosmic rays

Alexandros Tsouros, Gordian Edenhofer, Torsten Enßlin +2

(abridged) Ultra-high energy cosmic rays (UHECRs) are highly energetic charged particles with energies exceeding eV. Identifying their sources and production mechanism ca…

astro-ph.GA2022★ 20 cited

A 3D View of Orion: I. Barnard's Loop

Michael M. Foley, Alyssa Goodman, Catherine Zucker +11

Barnard's Loop is a famous arc of H emission located in the Orion star-forming region. Here, we provide evidence of a possible formation mechanism for Barnard's Loop and compare…

astro-ph.IM2022★ 1 cited

Bayesian statistics approach to imaging of aperture synthesis data: RESOLVE meets ALMA

Łukasz Tychoniec, Fabrizia Guglielmetti, Philipp Arras +2

The Atacama Large Millimeter/submillimeter Array (ALMA) is currently revolutionizing observational astrophysics. The aperture synthesis technique provides angular resolution otherw…

astro-ph.IM2022

Bayesian and Machine Learning Methods in the Big Data era for astronomical imaging

Fabrizia Guglielmetti, Philipp Arras, Michele Delli Veneri +4

The Atacama Large Millimeter/submillimeter Array with the planned electronic upgrades will deliver an unprecedented amount of deep and high resolution observations. Wider fields of…

astro-ph.GA2022★ 8 cited

The Musca molecular cloud: The perfect "filament" is still a sheet

A. Tritsis, F. Bouzelou, R. Skalidis +3

The true 3-dimensional (3D) morphology of the Musca molecular cloud is a topic that has received significant attention lately. Given that Musca does not exhibit intense star-format…

astro-ph.HE2021★ 33 cited

A MeerKAT-meets-LOFAR Study of MS 1455.0+2232: A 590 kiloparsec 'Mini'-Halo in a Sloshing Cool-Core Cluster

C. J. Riseley, K. Rajpurohit, F. Loi +13

Radio mini-haloes are poorly-understood, moderately-extended diffuse radio sources that trace the presence of magnetic fields and relativistic electrons on scales of hundreds of ki…

astro-ph.HE2021★ 3 cited

Exploring the MeV Sky with a Combined Coded Mask and Compton Telescope: The Galactic Explorer with a Coded Aperture Mask Compton Telescope (GECCO)

Elena Orlando, Eugenio Bottacini, Alexander Moiseev +33

The sky at MeV energies is currently poorly explored. Here we present an innovative mission concept that builds on and improves past and currently proposed missions at such energie…

astro-ph.IM2021★ 34 cited

Faint objects in motion: the new frontier of high precision astrometry

Fabien Malbet, Céline Boehm, Alberto Krone-Martins +83

Sky survey telescopes and powerful targeted telescopes play complementary roles in astronomy. In order to investigate the nature and characteristics of the motions of very faint ob…

astro-ph.GA2021★ 49 cited

The ultra-steep diffuse radio emission observed in the cool-core cluster RX J1720.1+2638 with LOFAR at 54 MHz

N. Biava, F. de Gasperin, A. Bonafede +17

Diffuse radio emission at the centre of galaxy clusters has been observed both in merging clusters on scales of Mpc, called giant radio haloes, and in relaxed systems with a cool-c…

astro-ph.GA2021★ 59 cited

The Per-Tau Shell: A Giant Star-Forming Spherical Shell Revealed by 3D Dust Observations

Shmuel Bialy, Catherine Zucker, Alyssa Goodman +6

A major question in the field of star formation is how molecular clouds form out of the diffuse Interstellar Medium (ISM). Recent advances in 3D dust mapping are revolutionizing ou…

physics.ao-ph2021

Studying Bioluminescence Flashes with the ANTARES Deep Sea Neutrino Telescope

N. Reeb, S. Hutschenreuter, P. Zehetner +141

We develop a novel technique to exploit the extensive data sets provided by underwater neutrino telescopes to gain information on bioluminescence in the deep sea. The passive natur…

astro-ph.IM2020★ 81 cited

Variable structures in M87* from space, time and frequency resolved interferometry

Philipp Arras, Philipp Frank, Philipp Haim +4

Observing the dynamics of compact astrophysical objects provides insights into their inner workings, thereby probing physics under extreme conditions. The immediate vicinity of an…

astro-ph.GA2019★ 108 cited

Low-frequency Faraday rotation measures towards pulsars using LOFAR: probing the 3-D Galactic halo magnetic field

C. Sobey, A. V. Bilous, J-M. Grießmeier +22

We determined Faraday rotation measures (RMs) towards 137 pulsars in the northern sky, using Low-Frequency Array (LOFAR) observations at 110-190 MHz. This low-frequency RM catalogu…

astro-ph.CO2018★ 51 cited

Observations of a nearby filament of galaxy clusters with the Sardinia Radio Telescope

V. Vacca, M. Murgia, F. Govoni +29

We report the detection of diffuse radio emission which might be connected to a large-scale filament of the cosmic web covering a 8deg x 8deg area in the sky, likely associated wit…

astro-ph.CO2017★ 31 cited

Observations of the galaxy cluster CIZA J2242.8+5301 with the Sardinia Radio Telescope

F. Loi, M. Murgia, F. Govoni +25

We observed the galaxy cluster CIZA J2242.8+5301 with the Sardinia Radio Telescope to provide new constraints on its spectral properties at high frequency. We conducted observation…

astro-ph.IM2017★ 52 cited

Theia: Faint objects in motion or the new astrometry frontier

The Theia Collaboration, Celine Boehm, Alberto Krone-Martins +96

In the context of the ESA M5 (medium mission) call we proposed a new satellite mission, Theia, based on relative astrometry and extreme precision to study the motion of very faint…

astro-ph.IM2016★ 282 cited

LOFAR facet calibration

R. J. van Weeren, W. L. Williams, M. J. Hardcastle +39

LOFAR, the Low-Frequency Array, is a powerful new radio telescope operating between 10 and 240 MHz. LOFAR allows detailed sensitive high-resolution studies of the low-frequency rad…

astro-ph.IM2013★ 11 cited

Pathway to the Square Kilometre Array - The German White Paper -

F. Aharonian, T. G. Arshakian, B. Allen +69

The Square Kilometre Array (SKA) is the most ambitious radio telescope ever planned. With a collecting area of about a square kilometre, the SKA will be far superior in sensitivity…