activity
20172026
most citedEvidence for a radiation belt around a brown dwarf

28 citations · 95 across the 11 of their papers we have counts for

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10 papers · 1 filter

astro-ph.SR2026

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…

astro-ph.SR2025

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…

astro-ph.SR2023

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…

astro-ph.SR2023★ 28 cited

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…

astro-ph.SR2022★ 11 cited

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…

astro-ph.SR2020★ 10 cited

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…

astro-ph.SR2020★ 12 cited

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…

astro-ph.SR2019★ 7 cited

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…

astro-ph.SR2019

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…

astro-ph.SR2017★ 14 cited

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…