output
19942026
most citedGATE : a simulation toolkit for PET and SPECT

2.2k citations

Showing 2020Show all

51 papers · 1 filter

astro-ph.EP2020★ 23 cited

Modeling the nonaxisymmetric structure in the HD 163296 disk with planet-disk interaction

Peter J. Rodenkirch, Thomas Rometsch, Cornelis P. Dullemond +2

High resolution ALMA observations revealed a variety of rich substructures in numerous protoplanetary disks. These structures consist of rings, gaps and asymmetric features. It is…

astro-ph.EP2020★ 129 cited

The Ophiuchus DIsc Survey Employing ALMA (ODISEA)-III: the evolution of substructures in massive discs at 3-5 au resolution

Lucas A. Cieza, Camilo González-Ruilova, Antonio S. Hales +15

We present 1.3 mm continuum ALMA long-baseline observations at 3-5 au resolution of 10 of the brightest discs from the Ophiuchus DIsc Survey Employing ALMA (ODISEA) project. We ide…

astro-ph.HE2020★ 51 cited

Diving below the spin-down limit: Constraints on gravitational waves from the energetic young pulsar PSR J0537-6910

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1589

We present a search for continuous gravitational-wave signals from the young, energetic X-ray pulsar PSR J0537-6910 using data from the second and third observing runs of LIGO and…

hep-ph2020★ 7 cited

Frozen-in fermionic singlet dark matter in non-standard cosmology with a decaying fluid

Paola Arias, Dimitrios Karamitros, Leszek Roszkowski

We perform a detailed study of dark matter production via freeze-in under the assumption that some fluid dominates the early Universe before depositing its energy to the plasma cau…

hep-th2020★ 4 cited

Conformal bridge in a cosmic string background

Luis Inzunza, Mikhail S. Plyushchay

Hidden symmetries of non-relativistic invariant systems in a cosmic string background are studied using the conformal bridg…

cond-mat.mtrl-sci2020★ 12 cited

Silicon cantilevers locally heated from 300K up to the melting point: temperature profile measurement from their resonances frequency shift

Basile Pottier, Felipe Aguilar, Mickaël Geitner +2

When heated, micro-resonators present a shift of their resonance frequencies. We study specifically silicon cantilevers heated locally by laser absorption, and evaluate theoretical…

q-bio.PE2020

Boom-bust population dynamics can increase diversity in evolving competitive communities

Michael Doebeli, Eduardo Cancino Jaque, Iaroslav Ispolatov

The processes and mechanisms underlying the origin and maintenance of biological diversity have long been of central importance in ecology and evolution. The competitive exclusion…

astro-ph.EP2020★ 37 cited

The effect of stellar multiplicity on protoplanetary discs. A NIR survey of the Lupus star forming region

Alice Zurlo, Lucas A. Cieza, Megan Ansdell +9

We present results from a near-infrared (NIR) adaptive optics (AO) survey of pre-main-sequence stars in the Lupus Molecular Cloud with VLT/NACO to identify (sub)stellar companions…

math.CO2020★ 2 cited

A characterization of Sturmian sequences by indistinguishable asymptotic pairs

Sebastián Barbieri, Sébastien Labbé, Štěpán Starosta

We give a new characterization of biinfinite Sturmian sequences in terms of indistinguishable asymptotic pairs. Two asymptotic sequences on a full -shift are indistingu…

astro-ph.EP2020★ 47 cited

Insights into the planetary dynamics of HD 206893 with ALMA

S. Marino, A. Zurlo, V. Faramaz +8

Radial substructure in the form of rings and gaps has been shown to be ubiquitous among protoplanetary discs. This could be the case in exoKuiper belts as well, and evidence for th…

astro-ph.SR2020★ 45 cited

Particle-In-Cell simulation of whistler heat flux instabilities in the solar wind: heat flux regulation and electron halo formation

A. Micera, A. N. Zhukov, R. A. López +4

We present results of two-dimensional fully kinetic Particle-In-Cell simulation in order to shed light on the role of whistler waves in the scattering of strahl electrons and in th…

hep-th2020★ 1 cited

Solitons and instantons in vacuum stability: physical phenomena

J. A. Gonzalez, A Bellorin, L E Guerrero +3

In a previous paper [JCAP06, 033 (2018)] we have proved that it is possible to have a stable false vacuum in a potential that is unbounded from below. In this paper we discuss the…

astro-ph.EP2020★ 16 cited

A Tale of Two Transition Disks: ALMA long-baseline observations of ISO-Oph 2 reveal two closely packed non-axisymmetric rings and a 2 au cavity

Camilo González-Ruilova, Lucas A. Cieza, Antonio S. Hales +12

ISO-Oph 2 is a wide-separation (240 au) binary system where the primary star harbors a massive (M 40 M) ring-like disk with a dust cavity 50 au in r…

cond-mat.mes-hall2020★ 5 cited

Motion-induced inertial effects and topological phase transitions in skyrmion transport

Allison W. Teixeira, Sebastián Castillo-Sepúlveda, Leandro G. Rizzi +5

In this work, the current-induced inertial effects on skyrmions hosted in ferromagnetic systems are studied. {When the dynamics is considered beyond the particle-like description,…

astro-ph.EP2020★ 30 cited

Non-Keplerian spirals, a gas-pressure dust trap and an eccentric gas cavity in the circumbinary disc around HD 142527

Himanshi Garg, Christophe Pinte, Valentin Christiaens +7

We present ALMA observations of the CO, CO, CO J=2-1 transitions and the 1.3\,mm continuum emission for the circumbinary disc around HD 142527, at an angular r…

quant-ph2020★ 5 cited

Steering Interchange of Polariton Branches via Coherent and Incoherent Dynamics

Diego Tancara, Ariel Norambuena, Rubén Peña +3

Controlling light-matter based quantum systems in the strong coupling regime allows for exploring quantum simulation of many-body physics in nowadays architectures. For instance, t…

hep-th2020★ 2 cited

Non-Perturbative Aspects of Spontaneous Symmetry Breaking

Jorge Gamboa, Justo Lopez-Sarrion

Spontaneous symmetry breaking is studied in the ultralocal limit of a scalar quantum field theory, that is when (or infrared limit). In this limit we show that a $ φ^4…

astro-ph.HE2020★ 13 cited

Proper motion, spectra, and timing of PSR J1813-1749 using Chandra and NICER

Wynn C. G. Ho, Sebastien Guillot, P. M. Saz Parkinson +7

PSR J1813-1749 is one of the most energetic rotation-powered pulsars known, producing a pulsar wind nebula (PWN) and gamma-ray and TeV emission, but whose spin period is only measu…

astro-ph.HE2020★ 38 cited

Return of the Big Glitcher: NICER timing and glitches of PSR J0537-6910

Wynn C. G. Ho, Cristobal M. Espinoza, Zaven Arzoumanian +7

PSR J0537-6910, also known as the Big Glitcher, is the most prolific glitching pulsar known, and its spin-induced pulsations are only detectable in X-ray. We present results from a…

nlin.PS2020★ 1 cited

Bubble nucleation around heterogeneities in -field theories

Juan F. Marin

Localised heterogeneities have been recently discovered to act as bubble-nucleation sites in nonlinear field theories. Vacuum decay seeded by black holes is one of the most remarka…

astro-ph.IM2020★ 196 cited

The Automatic Learning for the Rapid Classification of Events (ALeRCE) Alert Broker

F. Förster, G. Cabrera-Vives, E. Castillo-Navarrete +37

We introduce the Automatic Learning for the Rapid Classification of Events (ALeRCE) broker, an astronomical alert broker designed to provide a rapid and self--consistent classifica…

astro-ph.IM2020★ 135 cited

Alert Classification for the ALeRCE Broker System: The Light Curve Classifier

P. Sánchez-Sáez, I. Reyes, C. Valenzuela +23

We present the first version of the ALeRCE (Automatic Learning for the Rapid Classification of Events) broker light curve classifier. ALeRCE is currently processing the Zwicky Tran…

hep-th2020

Deformed Quantum Mechanics and the Landau Problem

J. Gamboa, F. Méndez

A deformation of the Landau problem based on a modification of Fock algebra is considered. Systems with Hamiltonians f(H) where H is the Landau Hamiltonian in the lowest level are…

physics.app-ph2020★ 1 cited

Oscillations of skyrmion clusters in Co/Pt multilayer nanodots

Felipe Tejo, Felipe Velozo, Ricardo Gabriel Elias +1

In this work we study the oscillations of the skyrmion cores in a multilayer nanodot as a function of the number of skyrmions hosted in the system. When all the skyrmions in the na…