本次会议共收录 601 篇报告,分布于 60 个分会。可按标题、作者或正文关键词检索。
共 601 条结果
In this contribution a new metric with seven parameters is found. The metric possess the following features: mass, rotation, charge, magnetic dipole, massive quadrupole, octupole, and hexadecapole. These spacetime is versatile and realistic for representing co…
The integration of Artificial Intelligence (AI) into astronomy and astrophysics marks a transformative era in the exploration of the Universe, enhancing the analysis of vast data sets with unparalleled efficiency and precision. AI is revolutionizing the usabil…
ANTARES, an observatory for high-energy neutrinos located below the surface of the Mediterranean Sea, finished its observational mission in February 2022 after operating for 15 years. Positioned strategically in the Northern hemisphere and equipped with except…
Constraining cosmological parameters for galaxy clustering analyses using the three-point correlation function, despite being pivotal, has historically been limited by the high computational cost of modelling. Here, we introduce a new emulator, based on a conv…
This preliminary study aims to explore the contrasting X-ray signatures of accretion and ejection processes in supermassive black holes, focusing on both persistent active galactic nuclei (AGN) and transient sources, such as tidal disruption events (TDEs), qua…
We present the structure of a low angular momentum accretion flows around rotating compact objects incorporating relativistic corrections up to the leading post-Newtonian order. To begin with, we formulate the governing post-Newtonian hydrodynamic equations fo…
I will first plan to review the accretion phenomenology and underlying models, mostly for a black hole. I will attempt to touch upon, how over the decades with the evolution of observations with newer data, newer models are proposed to explain them: standard S…
The International Virtual Observatory Alliance (IVOA) plays a crucial global role in establishing technical standards necessary for realizing the Virtual Observatory (VO). Our discussion focuses on the extensive adoption of the Multi-Order Coverage map (MOC) d…
The present-day standard model of cosmology, Lambda-CDM, gives us a representation of a cosmos whose dynamics is dominated by gravity (general relativity) with a finite lifetime, large scale homogeneity, expansion and a hot initial state, together with other d…
Effective field theory methods have been used in a multitude of applications in gravitational theory, and recent efforts employ such techniques to study tidal interactions. The tidal deformability of stars presents exciting opportunities to analyze both nuclea…
To precisely model or solve the binary problem in general relativity is a formidable challenge for both astronomy and gravitational physics. We will provide an exact one-body approach for the conservative part of such a problem, which applies to the whole thre…
; M. H. Siegel 26 ; K. Misra 27 ; Andrea Rossi 28 ; C. Lopresti 29 ; U. Quadri 30 ; L. Strabla 30 ; N. Ruocco 31 ; S. Leonini 32 ; M. Conti 32 ; P. Rosi 32 ; L. M. T. Ramirez 32 ; S. Zola 33 ; I. Jindal 34 ; L. Chan 35 ; M. Fuentes 36 ; G. Lambiase 37 ; K. K.…
“Dark stars” are a theoretical class of celestial objects powered by dark matter annihilation rather than nuclear fusion. I will review the conditions in the early universe conducive to the formation of dark stars, covering the theoretical basis of dark matter…
I will present a review on the X-ray emission coming from the Galactic Center (GC), and in particular from the Central Molecular Zone, established from the results that have been obtained in the last 20 years with Chandra, XMM-Newton, INTEGRAL and other space…
INAF…
Università di Salerno and INFN High-energy neutrinos can convey a significant amount of information on the mechanisms at play in astrophysical environments. Neutrino telescopes have been designed to study such signals, detecting the Cherenkov photons induced i…
Pulsar timing noise is the stochastic deviation of the pulse arrival times of a pulsar away from their long term trend. In the standard two-component crust-superfluid neutron star model, timing noise can be explained as the perturbation of the two components b…
We investigate the shadows produced by naked singularity spacetimes. Most analytical solutions for black hole shadows have focused on scenarios where the geodesic equations for photons. We examine the spherical null naked singularity metric, which is a spheric…
We present theoretical estimations of the event rates for the interaction between a right-handed neutrino dark matter with an electron bound to a Xenon atom. Motivated by recent results on dark matter in cosmological and astrophysical contexts, we study a ferm…
The cosmological constant problem enfolds one of the most long-standing issues in physics: the incompatibility between Quantum Field Theory and General Relativity. Within this background, the Archimedes experiment aims to investigate the relationship between z…
The production mechanism of astrophysical high-energy neutrinos is not yet understood. A common assumption is that beamed relativistic outflows (jets) driven by accreting black holes are needed to accelerate particles to such high energies to produce high-ener…
For space gravitational wave (GW) detection, arm locking is a proposal useful in decreasing the frequency noise of the laser sources for current developing space missions LISA and Taiji/TianQin. In this talk, we discuss the application of arm locking to the As…
Gravitational-wave astronomy has achieved remarkable progress over the past decades, detecting waves across a wide range of frequencies. However, the band around one Hz remains unexplored. This band is vital for studying some of the most fascinating sources, i…
Since the very first observations, the Cosmic Microwave Background (CMB) has revealed on large scales unexpected features known as anomalies, which challenge the standard Λ cold dark matter (ΛCDM) cosmological model. One of these is the hemispherical power asy…
To study the historical galactic Supernovae it is necessary the knowledge of the observations made with the naked eye. Within 2’ of theoretical angular accuracy in daytime and 1’ in nightime, the astronomical observations made before Tycho were conducted artis…