Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad de La LagunaES6.1k papers
- Centre National de la Recherche ScientifiqueFR2.2k papers
- National Institute for AstrophysicsIT1.3k papers
- Consejo Superior de Investigaciones CientíficasES1.2k papers
- European Southern ObservatoryCL1.2k papers
- Max Planck Institute for AstronomyDE1.1k papers
- University of PaduaIT1.1k papers
- Instituto de Astrofísica de AndalucíaES1k papers
- Osservatorio Astronomico di PadovaIT1k papers
- University of CambridgeGB989 papers
- California Institute of TechnologyUS984 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR963 papers
582 papers · 1 filter
Revisiting EBL Constraints from Gamma-Ray Observations: A Critical Assessment and Methodological Improvements
K. Abe, S. Abe, J. Abhir +185
The extragalactic background light (EBL), ranging from the infrared to the ultraviolet bands, is the second most intense photon field in the universe, surpassed only by the cosmic…
Resolving SLX 1744-299 and SLX 1744-300 in the hard X-ray band: implications for their ultracompact nature
Enzo A. Saavedra, Montserrat Armas Padilla, Teo Muñoz-Darias
Persistent, low-luminosity low-mass X-ray binaries (LMXBs) offer a unique opportunity to study accretion in this poorly understood regime, as well as to unveil new members of the u…
Dense, multi-phase accretion disk atmosphere in the low-luminosity state of black hole transientV4641 Sgr
Zuobin Zhang, Rob Fender, James H. Matthews +11
We present soft X-ray spectroscopy of the black-hole X-ray binary V4641~Sgr with the \textit{XMM-Newton} Reflection Grating Spectrometer (RGS). The RGS spectrum shows narrow emissi…
Exploring the nature of Galactic unassociated sources detected by the Fermi-LAT
F. Acero, A. Acharyya, A. Adelfio +120
We investigate the nature of the unassociated sources detected by the Fermi-LAT close (|b|<10°) to the Galactic plane, representing 16% of all sources in the 4FGL-DR4 catalog. The…
Gamma-ray signature of superluminous supernovae: Fermi-LAT GeV detection of SN 2017egm and evidence of a central engine
F. Acero, A. Acharyya, A. Adelfio +116
Superluminous supernovae (SLSNe) are a rare class of transients with peak luminosities 10-100 times greater than those of standard core-collapse supernovae (SNe). The mechanisms po…
X-ray luminous late-type giants: an overlooked population contributing to the Galactic ridge iron line emission
Tong Bao, Gabriele Ponti, Xiao-jie Xu +8
The origin of the highly ionized iron emission (Fe XXV at ) characterizing the Galactic ridge X-ray emission (GRXE) remains a fundamental puzzle in high-energy a…
Long-term study of the gamma-ray emission of Cygnus X-3 with MAGIC and Fermi-LAT
K. Abe, S. Abe, J. Abhir +185
Cygnus X-3 is a microquasar composed of a compact object of unknown nature closely orbiting around a Wolf-Rayet star. The particularities of this source make it a unique case among…
GRB 260310A / SN 2026fgk: A Multi-Wavelength Study of a Nearby Underluminous Long GRB and SN with a Complex Afterglow
Ramandeep Gill, Rosa L. Becerra, Antonio de Ugarte Postigo +54
We present a comprehensive multi-wavelength study of GRB 260310A / SN 2026fgk, a nearby (), long-duration gamma-ray burst (GRB) with an exceptionally underluminous prompt…
The January 2010 flare of Mrk421: Insights from a stochastic acceleration model
MAGIC collaboration, K. Abe, S. Abe +191
Mrk421 displayed its highest flux state ever observed in February of 2010 with very high TeV fluxes and interesting cross-band correlations and a spectral energy distribution (SED)…
The NuSTAR view of Ultra-Compact X-ray Binaries
A. Borghese, M. Armas Padilla, T. Muñoz-Darias
Ultra-compact X-ray binaries (UCXBs) are a subclass of low-mass X-ray binaries (LMXBs) characterised by tight orbits and hydrogen-poor donor stars. We present a spectral and timing…
Pulsar Discoveries from the TRAPUM UHF Survey of Fermi-LAT Sources
Tinn Thongmeearkom, Colin J. Clark, Rene P. Breton +25
The Fermi Large Area Telescope (LAT) provides advantages for radio pulsar searches by enabling efficient target selection. We can confidently point radio telescopes to the position…
A high-resolution X-ray view of the ultra-fast outflow in MAXI J1810-222
C. Pinto, M. Del Santo, A. D'Aì +10
In previous work, it was reported that the Galactic black hole candidate MAXI J1810-222 exhibited a notable absorption spectral feature at around 1 keV in low-resolution X-ray spec…
Multi-epoch afterglow rebrightenings in GRB 250129A: Evidence for successive shock interactions
D. Akl, S. Antier, H. Koehn +105
Most long gamma-ray bursts (GRBs) exhibit afterglows broadly consistent with external forward-shock emission, typically described by smooth broken power-law decays in the multiband…
A search for optical counterparts in quiescent black hole X-ray transients
I. V. Yanes-Rizo, J. Casares, M. A. P. Torres +7
Dynamical mass measurements of compact stars in X-ray transients demand the detection of optical/near infrared counterparts in quiescence. Out of the 73 black-hole candidates in X-…
Early emission characterization of TDE 2025aarm
Andrea Simongini, Maria Kherlakian, Alicia López-Oramas +2
In this Letter, we present early emission data analysis of the tidal disruption event TDE 2025aarm, including optical, UV and X-ray data. At a redshift of z = 0.01368, TDE 2025aarm…
GOTO identification and broadband modelling of the counterpart to the SVOM GRB 250818B
S. Belkin, G. P. Lamb, K. Ackley +61
Rapid localisation and follow-up of gamma-ray bursts (GRBs) increasingly rely on low-latency triggers from new missions coupled to wide-field robotic optical facilities. We present…
Ubiquitous yet forgotten: broad absorptions in the optical spectra of low-mass X-ray binaries
D. Mata Sanchez, T. Munoz-Darias, J. Casares +2
Optical outburst spectra of low-mass X-ray binaries enable studies of extreme accretion and ejection phenomena. While some of their spectroscopic features have been analysed in det…
Constraints on cyclotron features and accretion regime in the high-mass X-ray binary 4U 1700-37 from NuSTAR
Lautaro West-Ocampo, Federico A. Fogantini, Enzo A. Saavedra +6
4U 1700-37 is a wind-fed high-mass X-ray binary hosting a compact object, likely a neutron star, accreting from O6.5 Iaf+ supergiant HD 153919. Coherent pulsations not firmly detec…
Optical spectral characterization of OP 313. Constraining the contribution of thermal and non-thermal optical emission
J. Otero-Santos, M. Nievas Rosillo, J. A. Acosta-Pulido +1
The quasar OP 313 was discovered in December 2023 in very-high-energy rays above 100 GeV, enabling for the first time a complete characterization of its emission. However, the…
The DESI Transients Survey: Legacy Classifications and Methodology
Xander J. Hall, Antonella Palmese, Segev BenZvi +56
We present the first systematic spectroscopic observations of extragalactic transients from the Dark Energy Spectroscopic Instrument (DESI), as part of the DESI Transients Survey p…
Accretion disc winds in X-ray binaries
Teo Muñoz-Darias, María Díaz Trigo, Chris Done +2
Despite early theoretical expectations that large-scale, massive outflows would be triggered by accretion onto black holes and neutron stars, their presence was not firmly establis…
First detection of VHE gamma-ray signal from the FSRQ TON 0599
MAGIC Collaboration, K. Abe, S. Abe +245
TON\,0599 (z=0.7247) belongs to the few flat spectrum radio quasars (FSRQs) detected in the very high energy (VHE, \,GeV) gamma-ray band. Its redshift makes it currently o…
Multiband optical variability on diverse timescales of the blazar Ton 599 from 2011 to 2023
O. Vince, C. M. Raiteri, M. Villata +72
(Shortened)Context: We analyze the optical variability of the FSRQ Ton 599 using BVRI photometry from the WEBT collaboration (2011-2023), complemented by photometric and spectrosco…
Unveiling the nature of the Einstein Probe transient EP 241021a
J. Quirola-Vásquez, P. G. Jonker, A. J. Levan +23
We present a multi-wavelength analysis of the fast X-ray transient EP 241021a, discovered by the Wide-field X-ray Telescope aboard the \emph{Einstein Probe} satellite on 2024 Octob…