P. Ferrero
A5090752456- Gamma-ray bursts and supernovae
- SAS software applications and methods
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astrophysical Phenomena and Observations
- Neuroscience and Neuropharmacology Research
- Astro and Planetary Science
- Ion channel regulation and function
- Cardiac electrophysiology and arrhythmias
- Pulsars and Gravitational Waves Research
- Neurobiology and Insect Physiology Research
- Astronomical Observations and Instrumentation
- Cardiac Ischemia and Reperfusion
- Astrophysics and Cosmic Phenomena
- Cannabis and Cannabinoid Research
- Neuropeptides and Animal Physiology
- Epilepsy research and treatment
- Receptor Mechanisms and Signaling
- Anesthesia and Neurotoxicity Research
- Galaxies: Formation, Evolution, Phenomena
- Nicotinic Acetylcholine Receptors Study
- Insect Resistance and Genetics
- Cancer, Stress, Anesthesia, and Immune Response
- Cardiomyopathy and Myosin Studies
- Anesthesia and Sedative Agents
Instituto de Astrofísica de Andalucía
2014-2024
Centro de Investigaciones Cardiovasculares
2007-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2014-2024
Comisión de Investigaciones Científicas
2024
Universidad Nacional de La Plata
2002-2022
National University of Northwestern Buenos Aires
2012-2022
Consejo Superior de Investigaciones Científicas
2015
Instituto de Astrofísica de Canarias
2010-2014
Universidad de La Laguna
2010-2014
Centre National de la Recherche Scientifique
2013
The Herschel Multi-tiered Extragalactic Survey (HerMES) is a legacy programme designed to map set of nested fields totalling ∼380 deg2. Fields range in size from 0.01 ∼20 deg2, using the Herschel-Spectral and Photometric Imaging Receiver (SPIRE) (at 250, 350 500 μm) Herschel-Photodetector Array Camera Spectrometer (PACS) 100 160 μm), with an additional wider component 270 deg2 SPIRE alone. These bands cover peak redshifted thermal spectral energy distribution interstellar dust thus capture...
We have gathered optical photometry data from the literature on a large sample of Swift-era gamma-ray burst (GRB) afterglows including GRBs up to September 2009, for total 76 GRBs, and present an additional three pre-Swift not included in earlier sample. Furthermore, we publish 840 new points 42 GRB afterglows, sets 050319, 050408, 050802, 050820A, 050922C, 060418, 080413A 080810. analyzed light curves all derived spectral energy distributions with best quality, allowing us estimate host...
Gamma-ray bursts (GRBs) have been separated into two classes, originally along the lines of duration and spectral properties, called "short/hard" "long/soft." The latter conclusively linked to explosive deaths massive stars, while former are thought result from merger or collapse compact objects. In recent years, indications accumulating that short/hard versus long/soft division does not map directly onto what would be expected classes progenitors, leading a new classification scheme Type I...
An endogenous polypeptide of rat brain has been identified that is capable displacing 1,4-benzodiazepines and the esters 3-carboxylic acid derivatives beta-carbolines from their specific synaptic binding sites. This was termed diazepam-binding inhibitor (DBI). Previous studies have shown DBI injected intraventricularly in rodents elicits "proconflict" responses antagonizes "anticonflict" action benzodiazepines. antiserum to this peptide, directed toward an immunodeterminant near its amino...
An endogenous brain neuropeptide with 104 amino acid residues that modulates gamma-aminobutyric receptor function was termed DBI because it displaces diazepam from its specific binding sites. Tryptic digestion of generates an octadecaneuropeptide (ODN) is more potent than the parent compound in displacement specifically bound beta-[3H]carboline-3-carboxylate methyl ester [( 3H]BCCM) and proconflict action (Vogel test thirsty rats). The ODN antagonized by imidobenzodiazepinone Ro 15-1788,...
We report on the detection by Swift of GRB 080913, and subsequent optical/near-infrared follow-up observations GROND, which led to discovery its optical/NIR afterglow recognition high-z nature via a spectral break between i' z' bands. Spectroscopy obtained at ESO-VLT revealed continuum extending down λ = 9400 Å, zero flux for 7500 Å<λ < we interpret as onset Gunn–Peterson trough z 6.695± 0.025 (95.5% confidence level), making 080913 highest-redshift gamma-ray burst (GRB) date, more distant...
We present a list of 13 candidate gravitationally lensed submillimeter galaxies (SMGs) from 95 deg2 the Herschel Multi-tiered Extragalactic Survey, surface density 0.14 ± 0.04 deg−2. The selected sources have 500 μm flux densities (S500) greater than 100 mJy. Gravitational lensing is confirmed by follow-up observations in 9 systems (70%), and status four remaining undetermined. also supplementary sample 29 (0.31 0.06 deg−2) SMG candidates with S500 = 80–100 mJy, which are expected to contain...
We present observations and analysis of the broadband afterglow Swift GRB 071025. Using optical infrared (RIYJHK) photometry, we derive a photometric redshift 4.4 < z 5.2; at this our simultaneous multicolour begin ~30 s after trigger in host frame during initial rising phase afterglow. associate light curve peak 580 observer with formation forward shock, giving an estimate Lorentz factor Gamma_0 ~ 200. The red spectral energy distribution (even regions not affected by Lyman-alpha break)...
Until recently, dust emission has been detected in very few host galaxies of gamma-ray bursts (GRBHs). With Herschel, we have now observed 17 GRBHs up to redshift z ~ 3 and 7 them at infrared (IR) wavelengths. This relatively high detection rate (41%) may be due the composition our sample which a median 1.1 is dominated by hosts dark GRBs. Although numbers are small, statistics suggest that GRBs more likely IR than their optically bright counterparts. Combining data with optical,...
The supernova SN 2006aj associated with GRB 060218 is the second-closest GRB-SN observed to date (). We present Very Large Telescope, Liverpool and Katzman Automatic Imaging Telescope multi-color photometry of 2006aj. This found be subluminous rapidly evolving. Its early light curve includes an additional wavelength-dependent component, which can interpreted as shock break-out. compare photometric evolution multi-band curves corresponding properties sample more than 10 GRB-SNe precisely...
We present the results of a comprehensive study gamma-ray burst 080928 and its afterglow. GRB was long detected by Swift/BAT Fermi/GBM. It is one exceptional cases where optical emission had already been when itself still radiating in band. For nearly 100 s simultaneous optical, X-ray data provide coverage spectral energy distribution transient source from about 1 eV to 150 keV. In particular, we show that SED during main prompt phase agrees with synchrotron radiation. constructed...
Aims. The association of Type Ic supernovae (SNe) with long-duration gamma-ray bursts (GRBs) is well established. We endeavor, through accurate ground-based observational campaigns, to characterize these SNe at increasingly high redshifts.
According to our present understanding, long GRBs originate from the collapse of massive stars while short bursts are due coalescence compact stellar objects. Since afterglow evolution is determined by circumburst density profile, n(r), traversed fireball, it can be used distinguish between a so-called ISM n(r) = const., and free wind, $n(r) \propto r^{-2}$. Our goal derive most probable profile for large number Swift-detected using well-sampled light curves in optical X-ray bands. We...
Gamma-ray bursts (GRBs) have been proposed as a tool for studying star formation in the Universe, so it is crucial to investigate whether their host galaxies and immediate environments are any way special compared with other star-forming galaxies. Here we present spatially resolved maps of dust emission galaxyof closest known GRB 980425 at z = 0.0085 using our new high-resolution observations from Herschel, Atacama Pathfinder Experiment (APEX), Large Millimeter Array (ALMA) Australia...