A. Martín-Carrillo
A5028678235- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- Astronomical Observations and Instrumentation
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Stellar, planetary, and galactic studies
- Spacecraft Design and Technology
- SAS software applications and methods
- Geophysics and Gravity Measurements
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Ionosphere and magnetosphere dynamics
- Nuclear Physics and Applications
- Solar and Space Plasma Dynamics
- Satellite Communication Systems
- Adaptive optics and wavefront sensing
- Radio Wave Propagation Studies
- Geological and Geochemical Analysis
- Neutrino Physics Research
- Distributed and Parallel Computing Systems
- Spacecraft and Cryogenic Technologies
- Systems Engineering Methodologies and Applications
- Radiation Effects in Electronics
University College Dublin
2013-2024
Science North
2024
National College of Ireland
2015
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
2015
Georgia Institute of Technology
2015
European Space Astronomy Centre
2012
European Space Agency
2007
Abstract We report the INTernational Gamma-ray Astrophysics Laboratory ( INTEGRAL ) detection of short gamma-ray burst GRB 170817A (discovered by Fermi -GBM) with a signal-to-noise ratio 4.6, and, for first time, its association gravitational waves (GWs) from binary neutron star (BNS) merging event GW170817 detected LIGO and Virgo observatories. The significance between observed is 3.2σ, while -GBM detections 4.2σ. was SPI-ACS instrument about 2 s after end GW event. measure fluence (1.4 ±...
We report on INTEGRAL observations of the soft $\gamma$-ray repeater SGR 1935+2154 performed between 2020 April 28 and May 3. Several short bursts with fluence $\sim10^{-7}-10^{-6}$ erg cm$^{-2}$ were detected by IBIS instrument in 20-200 keV range. The burst hardest spectrum, discovered localized real time Burst Alert System, was spatially temporally coincident a very bright radio CHIME STARE2 telescopes at 400-800 MHz 1.4 GHz, respectively. Its lightcurve shows three narrow peaks separated...
The mergers of binary compact objects such as neutron stars and black holes are central interest to several areas astrophysics, including the progenitors gamma-ray bursts (GRBs), sources high-frequency gravitational waves likely production sites for heavy element nucleosynthesis via rapid capture (the r-process). These elements include some great geophysical, biological cultural importance, thorium, iodine gold. Here we present observations exceptionally bright burst GRB 230307A. We show...
Aims. GRB 190829A (z = 0.0785), detected by Fermi and Swift with two emission episodes separated a quiescent gap of ~40 s, was also observed the H.E.S.S. telescopes at Very-High Energy (VHE). We present 10.4m GTC observations afterglow underlying supernova compare it against similar 180728A discuss implications on physical mechanisms producing these GRBs. Methods. multi-band photometric data along spectroscopic follow-up taken telescope. Together from prompt emission, are used to understand...
We report on our study of supernova (SN) 2022xxf based observations obtained during the first four months its evolution. The light curves (LCs) display two humps similar maximum brightness separated by 75 days, unprecedented for a broad-lined (BL) Type Ic (SN IcBL). SN is most nearby IcBL to date (in NGC 3705, $z = 0.0037$, at distance about 20 Mpc). Optical and near-infrared photometry spectroscopy are used identify energy source powering LC. Nearly 50 epochs high signal-to-noise-ratio were...
Context . Gamma-ray bursts (GRBs) are ideal probes of the Universe at high redshift (ɀ), pinpointing locations earliest star-forming galaxies and providing bright backlights with simple featureless power-law spectra that can be used to spectrally fingerprint intergalactic medium host galaxy during period reionization. Future missions such as Gamow Explorer (hereafter Gamow) being proposed unlock this potential by increasing rate identification high-ɀ (ɀ > 5) GRBs in order rapidly trigger...
Detections of fast X-ray transients (FXTs) have been accrued over the last few decades. However, their origin has remained mysterious. There is now rapid progress thanks to timely discoveries and localisations with Einstein Probe mission. Early results indicate that FXTs may frequently, but not always, be associated gamma-ray bursts (GRBs). Here, we report on multi-wavelength counterpart FXT EP240414a, which no reported counterpart. The transient located 25.7~kpc in projection from a massive...
The detection and follow-up observations of high-redshift (z>6) gamma-ray bursts (GRBs) provide a unique opportunity to explore the properties distant Universe. Unfortunately, they are rather rare, with only dozen them identified so far. We present here discovery GRB second highest spectroscopic redshift measured date, GRB,240218A at z=6.782, broadband analysis its afterglow. Following by high-energy satellites, we obtained multi-epoch multi-wavelength photometric observations, from 68...
A long and intense gamma-ray burst (GRB) was detected by INTEGRAL on July 11 2012 with a duration of ~115s fluence 2.8x10^-4 erg cm^-2 in the 20 keV-8 MeV energy range. GRB 120711A at z~1.405 produced soft emission (>20 keV) for least ~10 ks after trigger. The observed several ground-based telescopes that powerful optical flash peaking an R-band brightness ~11.5 mag ~126 s We present comprehensive temporal spectral analysis long-lasting 20-200 keV band INTEGRAL, Fermi/LAT post-GRB detection...
We present the results from a high cadence, multi-wavelength observation campaign of AT 2016jbu (aka Gaia16cfr), an interacting transient. This dataset complements current literature by adding higher cadence as well extended coverage lightcurve evolution and late-time spectroscopic evolution. Photometric reveals that underwent significant photometric variability followed two luminous events, latter which reached absolute magnitude M$_V\sim$-18.5 mag. is similar to transient SN 2009ip whose...
The Gamma-ray Module, GMOD, is a miniaturised novel gamma-ray detector which will be the primary scientific payload on Educational Irish Research Satellite (EIRSAT-1) 2U CubeSat mission. GMOD comprises compact (25 mm × 25 40 mm) cerium bromide scintillator coupled to tiled array of 4 silicon photomultipliers, with front-end readout provided by IDE3380 SIPHRA. This paper presents detailed design and accommodation instrument within restrictive form factor. electronic mechanical interfaces are...
Context. GRB 220627A is a rare burst with two distinct γ -ray emission episodes separated by almost 1000 s that triggered the Fermi Gamma-ray Burst Monitor twice. High-energy GeV was detected Large Area Telescope coincident first episode but not second. The discovery of optical afterglow MeerLICHT led to MUSE observations which secured redshift z = 3.08, making this most distant ultra-long gamma-ray (GRB) date. Aims. progenitors some GRBs have been suggested in literature be different those...
Context. GRB 211106A and 211227A are two recent gamma-ray bursts (GRBs) whose initial X-ray position enabled us to possibly associate them with bright, low-redshift galaxies ( z < 0.7). The prompt emission properties suggest that is a genuine short-duration short extended emission. Therefore, they likely be produced by compact binary merger. However, classification based solely on the can misleading. Aims. possibility of having GRBs occurring in local Universe makes ideal targets for...
The gamma-ray burst GRB 221009A is among the most luminous of its kind and proximity to Earth has made it an exceptionally rare observational event. International Gamma-ray Astrophysics Laboratory (INTEGRAL) was in optimal aspect position use all-sky instruments for recording prompt emission early afterglow unprecedented detail. Following initial detection, a swiftly scheduled follow-up observation allowed hard X-ray time spectral evolution be observed up almost week. INTEGRAL soft...
Abstract Thanks to the rapidly increasing time-domain facilities, we are entering a golden era of research on gamma-ray bursts (GRBs). In this Letter, report our observations GRB 240529A with Burst Optical Observer and Transient Exploring System, 1.5 m telescope at Observatorio de Sierra Nevada, 2.5 Wide Field Survey Telescope China, Large Binocular Telescope, Telescopio Nazionale Galileo. The prompt emission shows two comparable energetic episodes separated by quiescence time roughly 400 s....
We present the results from Nordic Optical Telescope and X-shooter follow-up campaigns of tidal disruption event (TDE) iPTF16fnl, covering first $\sim$100 days after transient discovery. followed source photometrically until TDE emission was no longer detected above host galaxy light. The bolometric luminosity evolution is consistent with an exponential decay e-folding constant t$_{0}$=17.6$\pm$0.2 days. early time spectra are dominated by broad He II $\lambda$4686, H$\beta$, H$\alpha$ N III...
We present the bolometric lightcurve, identification and analysis of progenitor candidate, preliminary modelling AT2016jbu (Gaia16cfr). find a consistent with $\sim$22--25~$M_{\odot}$ yellow hypergiant surrounded by dusty circumstellar shell, in agreement what has been previously reported. see evidence for significant photometric variability progenitor, as well strong H$α$ emission pre-existing material. The age environment resolved stellar population surrounding AT2016jbu, support $>$10...
We present analysis of 100 ks contiguous XMM-Newton data the prototypical wind accretor Vela X-1. The observation covered eclipse egress between orbital phases 0.134 and 0.265, during which a giant flare took place, enabling us to study spectral properties both outside flare. This with peak luminosity $3.92^{+0.42}_{-0.09} \times 10^{37}$ erg s$^{-1}$ allows estimates physical parameters accreted structure mass $\sim$ $10^{21}$ g. have been able model several contributions observed spectrum...
During the first observing run of LIGO, two gravitational wave events and one lower-significance trigger (LVT151012) were reported by LIGO/Virgo collaboration. At time LVT151012, INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) was pointing at a region sky coincident with high localization probability area event thus permitted us to search for its electromagnetic counterpart (both prompt afterglow emission). The imaging instruments on-board INTEGRAL (IBIS/ISGRI, IBIS/PICsIT, SPI,...
Long gamma-ray bursts are produced during the dramatic deaths of massive stars with very short lifetimes, meaning that they explode close to birth place their progenitors. During a period become most luminous objects observable in Universe, being perfect beacons study high-redshift star-forming regions. To use afterglow GRB 161023A at redshift $z=2.710$ as background source environment explosion and intervening systems along its line-of-sight. r first time, we complement UV/Optical/NIR...
The Educational Irish Research Satellite 1 (EIRSAT-1) is a 2U CubeSat being developed under ESA's Fly Your Satellite! programme. project has many aspects, which are primarily educational, but also include space qualification of new detector technologies for gamma-ray astronomy and the detection bursts (GRBs). Gamma-ray Module (GMOD), main mission payload, small spectrometer comprising 25 mm × 40 cerium bromide scintillator coupled to an array 16 silicon photomultipliers. readout provided by...
Context. Dark gamma-ray bursts (GRBs) constitute a significant fraction of the GRB population. In this paper, we present multi-wavelength analysis (both prompt emission and afterglow) an intense (3.98 × 10 −5 erg cm −2 using Fermi -Gamma-Ray Burst Monitor) two-episodic 150309A observed early on until ∼114 days post burst. Despite strong emission, no optical afterglow was detected for However, discovered near-infrared (NIR) ( K S -band), ∼5.2 h burst, with CIRCE instrument mounted at 10.4 m...