28 citations · 95 across the 11 of their papers we have counts for
14 papers
A Jupiter-like radio aurora in the L3.5 dwarf LSPM J0036+1821
D. Martín-Carrero, J. B. Climent, P. A. Miles-Páez +6
Ultracool dwarfs exhibit radio emission revealing strong magnetic fields and complex magnetospheric processes. Their auroral emission resembles that observed in magnetized Solar Sy…
Very Long Baseline Interferometry with the SKA Observatory
J. F. Radcliffe, J. Yang, Z. Paragi +129
Very Long Baseline Interferometry (VLBI) is a fundamental technique that combines signals from telescopes separated by thousands of kilometres to obtain some of the highest-resolut…
Discovering and Characterising Exoplanets and Ultracool Dwarfs with the Square Kilometre Array
Robert D. Kavanagh, Juan B. Climent, Philippe Zarka +14
The majority of the Solar System planets are sources of bright radio emission, driven by energetic electrons trapped within each planet's magnetic field. Detection of this emission…
Main-oval auroral emission from a T6 brown dwarf: observations, modeling, and astrometry
J. C. Guirado, J. B. Climent, J. D. Bergasa +3
From a series of 5 GHz VLBA radio observations taken over 1-yr span, we present the detection of compact highly-polarized radio emission from the T6 brown dwarf WISE J112254.72+255…
Phenomenology and periodicity of radio emission from the stellar system AU Microscopii
Sanne Bloot, Joseph R. Callingham, Harish K. Vedantham +6
Stellar radio emission can measure a star's magnetic field strength and structure, plasma density and dynamics, and the stellar wind pressure impinging on exoplanet atmospheres. Ho…
New constraints on the presence of debris disks around G 196-3 B and VHS J125601.92-125723.9 b
O. V. Zakhozhay, M. R. Zapatero Osorio, V. J. S. Bejar +10
We obtained deep images of G 196-3 B and VHS J1256-1257 b with the NOrthern Extended Millimeter Array (NOEMA) at 1.3 mm. These data were combined with recently published Atacama La…
Evidence for a radiation belt around a brown dwarf
J. B. Climent, J. C. Guirado, M. Pérez-Torres +2
Radio observations of ultracool dwarfs, objects comprising brown dwarfs and the very lowest mass stars, have mainly focused on analyzing their light-curve and spectral energy distr…
Radio emission in a nearby ultracool dwarf binary: a multi-frequency study
Juan B. Climent, J. C. Guirado, M. R. Zapatero-Osorio +8
The substellar triple system VHS J125601.92125723.9 is composed by an equal-mass M7.5 brown dwarf binary and a L7 low-mass substellar object. In this work, we aim to identify th…
The milliarcsecond-scale radio structure of AB Dor A
J. B. Climent, J. C. Guirado, R. Azulay +4
Context: The fast rotator, pre-main sequence star AB Dor A is a strong and persistent radio emitter. The extraordinary coronal flaring activity is thought to be the origin of compa…
VLBI20-30: a scientific roadmap for the next decade -- The future of the European VLBI Network
Tiziana Venturi, Zsolt Paragi, Michael Lindqvist +77
This white paper describes the science case for Very Long Baseline Interferometry (VLBI) and provides suggestions towards upgrade paths for the European VLBI Network (EVN). The EVN…
VLTI-PIONIER imaging of the red supergiant V602 Carinae
J. B. Climent, M. Wittkowski, A. Chiavassa +7
Context. Red supergiant stars possess surface features and extended molecular atmospheres. Photospheric convection may be a crucial factor of the levitation of the outer atmospheri…
Evidence of a substellar companion to AB Dor C
J. B. Climent, J. P. Berger, J. C. Guirado +5
Studies of fundamental parameters of very low-mass objects are indispensable to provide tests of stellar evolution models that are used to derive theoretical masses of brown dwarfs…
Surface imaging of cool evolved stars in the era of the ELT
M. Wittkowski, A. Chiavassa, S. Höfner +1
Cool evolved stars are the main source of chemical enrichment of the interstellar medium. Understanding their mass loss offers a unique opportunity to study the cycle of matter. We…
Radio emission in ultracool dwarfs: the nearby substellar triple system VHS 12561257
J. C. Guirado, R. Azulay, B. Gauza +4
With the purpose to investigate the radio emission of new ultracool objects, we carried out a targeted search in the recently discovered system VHS J125601.92125723.9 (hereafter…