Zobrazeno 1 - 10
of 2 711
pro vyhledávání: '"Sesana, A"'
Autor:
Miniutti, Giovanni, Franchini, Alessia, Bonetti, Matteo, Giustini, Margherita, Chakraborty, Joheen, Arcodia, Riccardo, Saxton, Richard, Quintin, Erwan, Kosec, Peter, Linial, Itai, Sesana, Alberto
X-ray quasi-periodic eruptions (QPEs) are intense soft X-ray bursts from the nuclei of nearby low-mass galaxies typically lasting about one hour and repeating every few. Their physical origin remains debated, although so-called impacts models in whic
Externí odkaz:
http://arxiv.org/abs/2411.13460
Autor:
Ferranti, Irene, Falxa, Mikel, Sesana, Alberto, Chalumeau, Aurelien, Porayko, Nataliya, Shaifullah, Golam, Cognard, Ismael, Guillemot, Lucas, Kramer, Michael, Liu, Kuo, Theureau, Gilles
Pulsar Timing Array (PTA) collaborations gather high-precision timing measurements of pulsars with the aim of detecting gravitational wave (GW) signals. A major challenge lies in the identification and characterization of the different sources of noi
Externí odkaz:
http://arxiv.org/abs/2410.18179
Stellar-mass black-hole binaries are the most numerous gravitational-wave sources observed to date. Their properties make them suitable for observation both by ground- and space-based detectors. Starting from synthetic catalogues constructed based on
Externí odkaz:
http://arxiv.org/abs/2410.18171
Autor:
Piarulli, Manuel, Buscicchio, Riccardo, Pozzoli, Federico, Burke, Ollie, Bonetti, Matteo, Sesana, Alberto
Extreme Mass Ratio Inspirals (EMRIs) are key observational targets for the Laser Interferometer Space Antenna (LISA) mission. Unresolvable EMRI signals contribute to forming a gravitational wave background (GWB). Characterizing the statistical featur
Externí odkaz:
http://arxiv.org/abs/2410.08862
Autor:
Pozzoli, Federico, Buscicchio, Riccardo, Klein, Antoine, Korol, Valeriya, Sesana, Alberto, Haardt, Francesco
One of the primary sources of gravitational waves (GWs) anticipated to be detected by the Laser Interferometer Space Antenna (LISA) are Galactic double white dwarf binaries (DWDs). However, most of these binaries will be unresolved, and their GWs wil
Externí odkaz:
http://arxiv.org/abs/2410.08274
Extreme mass ratio inspirals (EMRIs) are anticipated to be primary gravitational wave sources for LISA (Laser Interferometer Space Antenna). They form in dense nuclear clusters when a compact object (CO) is captured by the central massive black holes
Externí odkaz:
http://arxiv.org/abs/2409.09122
Autor:
Goncharov, Boris, Sardana, Shubhit, Sesana, A., Tomson, S. M., Antoniadis, J., Chalumeau, A., Champion, D., Chen, S., Keane, E. F., Liu, K., Shaifullah, G., Speri, L., Valtolina, S.
We find the inferred properties of the putative gravitational wave background in the second data release of the European Pulsar Timing Array (EPTA) to be in better agreement with theoretical expectations under the improved noise model. In particular,
Externí odkaz:
http://arxiv.org/abs/2409.03627
Recent observations by pulsar timing arrays indicate the presence of gravitational wave signals, likely from supermassive black hole binaries. These binaries can produce two types of signals: a stochastic gravitational wave background (GWB) or determ
Externí odkaz:
http://arxiv.org/abs/2407.21105
Autor:
Truant, Riccardo J., Izquierdo-Villalba, David, Sesana, Alberto, Shaifullah, Golam Mohiuddin, Bonetti, Matteo
Pulsar Timing Array (PTA) collaborations reported evidence of a nano-Hz stochastic gravitational wave background (sGWB) compatible with an adiabatically inspiraling population of massive black hole binaries (MBHBs). Despite the large uncertainties, t
Externí odkaz:
http://arxiv.org/abs/2407.12078
Autor:
Arcodia, R., Linial, I., Miniutti, G., Franchini, A., Giustini, M., Bonetti, M., Sesana, A., Soria, R., Chakraborty, J., Dotti, M., Kara, E., Merloni, A., Ponti, G., Vincentelli, F.
Publikováno v:
A&A 690, A80 (2024)
Quasi-periodic eruptions (QPEs) are repeated X-ray flares from galactic nuclei. Despite some diversity in the recurrence and amplitude of eruptions, their striking regularity has motivated theorists to associate QPEs with orbital systems. Among the k
Externí odkaz:
http://arxiv.org/abs/2406.17020