The gravitational waves from the binary neutron star merger GW170817 were accompanied by a multiwavelength electromagnetic counterpart, which confirms the association of the merger with a short
gamma-ray burst (sGRB). The afterglow observations implied that th…
The Compton Spectrometer and Imager (COSI) is a NASA Small Explorer (SMEX) satellite mission
planned to fly in 2027. It has the participation of institutions in the US, Europe and Asia and aims at
the construction of a gamma ray telescope for observations in t…
Launched on January 9th, 2024, the Einstein Probe (EP) is a space X-ray observatory designed to detect mainly high-energy transient and variable sources in the universe. It aims at detecting such sources at unprecedented sensitivity and spatial resolution in t…
. In the field of gravitational wave (GW) detection, groundbreaking discoveries like those made by the LIGO, Virgo, and KAGRA collaborations signify the culmination of extensive interdisciplinary efforts spanning various research fields. These detectors grappl…
About a billion years after the Big Bang, the Epoch of Reionisation saw the first light sources in the
Universe slowly ionise the primordial atoms of the surrounding IGM. Learning about this distant
epoch has the potential of unveiling crucial information abou…
Chalmers Univ. & Univ. of Virginia The origin of supermassive black holes (SMBHs) is a key open question for contemporary astrophysics and cosmology. Here we discuss the predictions of a model of SMBH formation from Pop
III.1 protostars, i.e., metal-free stars…
Alessandro Di Marco · Massimo Visco · Feliciana Sapio · David Lucchesi · Marco Cinelli · Emiliano Fiorenza …
G4S_2.0 (Galileo for Science) is an ongoing project funded by the Italian Space Agency (ASI) and
carried out by the Center for Space Geodesy (ASI-CGS) in Matera, the Istituto di Astrofisica e Planetologia Spaziali (IAPS/INAF) in Rome, and the Politecnico di To…
Early James Webb Space Telescope (JWST) observations defied expectations from the standard CDM
model of cosmology. There is an overabundance of very massive, high-redshift galaxies and quasars
when the universe was only a few hundred million years old. Superma…
One of the most enigmatic challenges in contemporary time domain radio astronomy is understanding the nature of fast radio bursts (FRBs). These millisecond-duration, highly coherent radio flashes
predominantly originate from beyond our Galaxy.
In this presenta…
In the end of 2026, the AMS-02 experiment on the International Space Station will undergo a major
upgrade of its apparatus: a double layer of microstrip silicon sensors, for a total area of ~ 7 m^2 and
almost doubling the total area of the microstrip silicon t…
The dense interiors of neutron stars provide a window to the nature of cold matter at densities above
nuclear that complements precision laboratory nuclear experiments. The uncertain physics at high
density leads to a range of possible equations of state (EOS)…
The ordinary atoms that make up the known universe, from our bodies and the air we breathe to the planets and stars, constitute only 5% of all matter and energy in the cosmos. The remaining 95% is made up of a recipe of 25% dark matter and 70% dark energy, bot…
I will present an overview of temporal variability studies of Sgr A, discussing several observables,
such as the flux distribution, the SED, the PSD and (higher order) structure functions, and will give an
overview of how these are typically modelled in observ…
Since the first theoretical proposition of a black hole solution, it has been one of the most investigated
questions that what would be the appearance of a black hole. There have been hundreds of black
hole solutions in various frameworks for which studies are…
The galactic black hole is not very active at present, but at about 1 pc there is a large reservoir of material that will eventually trigger a more intense phase of activity. Smaller-scale processes can also accrete material onto the black hole producing short…
It is a fact that the universe lives on a gravitational wave background (GWB). In this talk we start from
this hypothesis. Due to the GWB, space-time is fluctuating in such a way that it locally resembles
a lake with small waves and therefore quantum particles…
Black holes are fascinating objects in nature. Although they are introduced as classical solutions in
general relativity, their intrinsic nature should be quantum, which manifests during the black hole
formation and evaporation processes. If string theory is c…
SVOM (Space-based multi-band astronomical Variable Objects Monitor) is a Sino-French mission
launched in June 2024. Its Core Program is dedicated to the detection and study of Gamma-Ray
Bursts (GRBs). I will show how the set of SVOM instruments as well as the…
The recently launched SVOM (Space-based multi-band astronomical Variable Objects Monitor) mission is a French-Chinese collaboration dedicated to the study of high energy transients, particularly
gamma-ray bursts (GRBs). Boasting sensitivity from gamma-ray to o…
On behalf of the SVOM collaboration, I will present the science objectives, characteristics and status of the Chinese-French Space-based multi-band astronomical Variable Objects Monitor mission,
expected to put in orbit, at the end of June 2024, a spacecraft c…
Tiago Fernandes · Francisco Gandum · José Sande Lemos
We construct the canonical ensemble of a matter thin shell in
asymptotically AdS using the Euclidean path integral approach.
We impose spherical symmetry, the Hamiltonian and momentum constraints,
the hot AdS regularity conditions and the asymptotic behaviour…
In this talk I will present cosmological results from the recent work carried on by the BeyondPlanck
collaboration: a Bayesian end-to-end analysis of Planck LFI raw data. This novel approach allowed to
seamlessly go through all the steps of a classical CMB ana…
It is a fact that the universe lives on a gravitational wave background (GWB), which is extra space–
time energy that is not contained in Einstein’s field equations. In a previous work, this energy is
treated as a property of space–time and not as a source. Wi…
Ultra-long period (ULP) radio transients are one of the most recent mysteries in compact object
astrophysics. Theories suggest that these could be slowly spinning neutron stars or white dwarfs.
However, the confirmation of either (or both) would be a giant lea…
We discuss general solutions of the Einstein-Cartan theory sourced by a cosmological perfect fluid
composed of particles with intrinsic spin. In the considered model, the metric tensor is described
by a general FLRW solution, however, the Weyl tensor might not…