38 citations · 181 across the 35 of their papers we have counts for
9 papers · 1 filter
Prospects for Detecting Fast Transients with the Radio Telescopes of the Argentine Institute of Radio Astronomy
Susana Beatriz Araujo Furlan, Ezequiel Zubieta, Guillermo Gancio +5
Currently, 6 out of 30 known magnetars had pulsed radio emission detected. In this work, we evaluated the possibility of detecting radio transient events from magnetars with the te…
Rapid dimming followed by a state transition: a study of the highly variable nuclear transient AT 2019avd over 1000+ days
Yanan Wang, Dheeraj R. Pasham, Diego Altamirano +16
The tidal disruption of a star around a supermassive black hole (SMBH) offers a unique opportunity to study accretion onto a SMBH on a human-timescale. We present results from our…
Updates on the glitching pulsar monitoring campaign performed from IAR
Ezequiel Zubieta, Santiago del Palacio, Federico García +4
Pulsars are known for their exceptionally stable rotation. However, this stability can be disrupted by glitches, sudden increases in rotation frequency whose cause is poorly unders…
Probing the non-thermal physics of stellar bow shocks using radio observations
Javier Rodrigo Martinez, Santiago del Palacio, Valentí Bosch-Ramon
We aim to interpret the radio emission of stellar bow shocks and assess under which conditions it could be either thermal or non-thermal, and how to use the observational data to i…
Search for particle acceleration in two massive Wolf-Rayet stars using uGMRT observations
Anindya Saha, Anandmayee Tej, Santiago del Palacio +4
Large wind kinetic power of Wolf-Rayet (WR) stars make them ideal targets in low radio frequencies to search for non-thermal emission due to relativistic particle acceleration. In…
5-12 pc resolution ALMA imaging of gas and dust in the obscured compact nucleus of IRAS 17578-0400
Chentao Yang, Susanne Aalto, Sabine König +7
We here present 0.02-0.04'' resolution ALMA observation of the compact obscured nucleus (CON) of IRAS17578-0400. A dusty torus within the nucleus, approximately 4 pc in radius, has…
A shared accretion instability for black holes and neutron stars
F. M. Vincentelli, J. Neilsen, A. J. Tetarenko +20
Accretion disks around compact objects are expected to enter an unstable phase at high luminosity. One instability may occur when the radiation pressure generated by accretion modi…
Evidence for non-thermal X-ray emission from the double WR colliding-wind binary Apep
S. del Palacio, F. García, M. De Becker +5
Context: Massive colliding-wind binaries (CWBs) can be non-thermal sources. The emission produced in their wind-collision region (WCR) encodes information of both the shocks proper…
The radio detection and accretion properties of the peculiar nuclear transient AT 2019avd
Yanan Wang, Ranieri D. Baldi, Santiago del Palacio +19
AT 2019avd is a nuclear transient detected from infrared to soft X-rays, though its nature is yet unclear. The source has shown two consecutive flaring episodes in the optical and…