Publications (11)
Ordered magnetic fields around the 3C 84 central black hole
G. F. Paraschos, J. -Y. Kim, M. Wielgus +279
3C84 is a nearby radio source with a complex total intensity structure, showing linear polarisation and spectral patterns. A detailed investigation of the central engine region nec…
Young, active radio stars in the AB Doradus moving group
R. Azulay, J. C. Guirado, J. M. Marcaide +5
Context. Precise determination of stellar masses is necessary to test the validity of pre-main-sequence (PMS) stellar evolutionary models, whose predictions are in disagreement wit…
Radio detection of the young binary HD 160934
R. Azulay, J. C. Guirado, J. M. Marcaide +2
Precise determination of dynamical masses of pre-main-sequence (PMS) stars is essential to calibrate stellar evolution models that are widely used to derive theoretical masses of y…
SYMBA: An end-to-end VLBI synthetic data generation pipeline
F. Roelofs, M. Janssen, I. Natarajan +203
Realistic synthetic observations of theoretical source models are essential for our understanding of real observational data. In using synthetic data, one can verify the extent to…
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…
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…
The Spanish Square Kilometre Array White Book
J. A. Acosta-Pulido, I. Agudo, A. Alberdi +116
The Square Kilometre Array (SKA) is called to revolutionise essentially all areas of Astrophysics. With a collecting area of about a square kilometre, the SKA will be a transformat…
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…
Broadband Multi-wavelength Properties of M87 during the 2018 EHT Campaign including a Very High Energy Flaring Episode
J. C. Algaba, M. Balokovic, S. Chandra +738
The nearby elliptical galaxy M87 contains one of the only two supermassive black holes whose emission surrounding the event horizon has been imaged by the Event Horizon Telescope (…
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…
Dynamical masses of the low-mass stellar binary ABDoradusB
R. Azulay, J. C. Guirado, J. M. Marcaide +8
Context. ABDoradus is the main system of the ABDoradus moving group. It is a quadruple system formed by two widely separated binaries of pre-main-sequence (PMS) stars: ABDor A/C an…