135 citations · 419 across the 22 of their papers we have counts for
18 papers · 1 filter
Orbital and sub-orbital period determination of the candidate high-mass X-ray binary HD 3191
Josep Martí, Pedro L. Luque-Escamilla, Estrella Sánchez-Ayaso +1
The final aim of this paper is to expand the sparse group of X-ray binaries with gamma-ray counterparts as laboratories to study high-energy processes under physical conditions tha…
Effects of precession versus instabilities on the jets of GRS 1758-258
Pedro L. Luque-Escamilla, Josep Martí, José Martínez-Aroza
Aims. The prototypical microquasar GRS 1758-258 exhibits large-scale morphological changes in radio maps over time which have been attributed to the rise of instabilities. Here, we…
Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation
The Cherenkov Telescope Array Consortium, :, H. Abdalla +496
The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for -ray astronomy, provides unique capabilities to address significant open questions in astrop…
Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre
The Cherenkov Telescope Array Consortium, :, A. Acharyya +449
We provide an updated assessment of the power of the Cherenkov Telescope Array (CTA) to search for thermally produced dark matter at the TeV scale, via the associated gamma-ray sig…
A blazar as the likely counterpart to 4FGL J0647.7-4418 instead of a gamma-ray binary
Josep Martí, Estrella Sánchez-Ayaso, Pedro L. Luque-Escamilla +3
The persistent gamma-ray source 4FGL J0647.7-4418 is tentatively associated in the latest Fermi catalogue with the sub-dwarf O-type X-ray binary HD 49798. However, an AGN candidate…
The radio jets of SS 433 at millimetre wavelengths
Josep Martí, Irene Bujalance-Fernández, Pedro L. Luque-Escamilla +3
Context. SS 433 is historically a well-known microquasar in the Galaxy that has been deeply studied during the four decades elapsed since its discovery. However, observations at ve…
Possible Association of Two Stellar Bowshocks with Unidentified Fermi Sources
E. Sánchez-Ayaso, María V. del Valle, J. Martí +2
The bowshocks of runaway stars had been theoretically proposed as gamma-ray sources. However, this hypothesis has not been confirmed by observations up to date. In this paper, we p…
Prospects for CTA observations of the young SNR RX J1713.7-3946
The CTA Consortium, :, F. Acero +381
We perform simulations for future Cherenkov Telescope Array (CTA) observations of RX~J1713.73946, a young supernova remnant (SNR) and one of the brightest sources ever discovere…
Peculiar objects towards 3FGL J0133.3+5930: an eclipsing Be star and an active galactic nucleus
Josep Martí, Pedro L. Luque-Escamilla, Josep M. Paredes +4
Aims. We aim to contribute to the identification of unassociated gamma-ray sources in the galactic plane in order to enlarge the currently known population of gamma-ray binaries an…
Optical spectroscopy of the microquasar GRS 1758-258: a possible intermediate mass system?
Josep Martí, Pedro L. Luque-Escamilla, Álvaro J. Muñoz-Arjonilla
Context. GRS 1758-258 is one of two prototypical microquasars towards the Galactic Center direction discovered almost a quarter of a century ago. The system remains poorly studied…
Multi-colour optical photometry of V404 Cygni in outburst
Josep Martí, Pedro L. Luque-Escamilla, María T. García-Hernández
Context. This observational paper has been prepared in the context of the large multi-wavelength effort by many observers with the aim of following up the transient flaring event o…
Real-time evolution of a large-scale relativistic jet
Josep Martí, Pedro L. Luque-Escamilla, Gustavo E. Romero +2
Context. Astrophysical jets are ubiquitous in the Universe on all scales, but their large-scale dynamics and evolution in time are hard to observe since they usually develop at a v…
The star forming region Monoceros R2 as a gamma-ray source
Josep Martí, Pedro L. Luque-Escamilla, Álvaro J. Muñoz-Arjonilla +6
Context. After the release of the gamma-ray source catalog produced by the Fermi satellite during its first two years of operation, a significant fraction of sources still remain u…
XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
E. Sánchez-Ayaso, J. A. Combi, F. Bocchino +4
We aim to study the spatial distribution of the physical and chemical properties of the X-ray emitting plasma of the supernova remnant G272.2-3.2, in order to get important constra…
Are T Tauri stars gamma-ray emitters?
María Victoria del Valle, Gustavo E. Romero, Pedro Luis Luque-Escamilla +2
T Tauri stars are young, low mass, pre-main sequence stars surrounded by an accretion disk. These objects present strong magnetic activity and powerful magnetic reconnection events…
Polarization and photometric observations of the gamma-ray blazar PG 1553+113
I. Andruchow, J. A. Combi, A. J. Muñoz-Arjonilla +3
We present the results of an observational photo-polarimetry campaign of the blazar PG 1553+113 at optical wavelengths. The blazar was recently detected at very high energies (> 10…
High-energy radiation from T Tauri stars
Gustavo E. Romero, María V. del Valle, Josep Martí +1
T Tauri stars are young, low mass, pre-main sequence stars surrounded by an accretion disk. These objects present strong magnetic activity and powerful magnetic reconnection events…
XMM-Newton detection of the supernova remnant G304.6+0.1 (Kes 17)
J. A. Combi, J. F. Albacete Colombo, E. Sanchez-Ayaso +6
Aims. We report the first detailed X-ray study of the supernova remnant (SNR) G304.6+0.1, achieved with the XMM-Newton mission. Methods. The powerful imaging capability of XMM-Newt…