Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Perego, Albino"'
Autor:
Bernuzzi, Sebastiano, Magistrelli, Fabio, Jacobi, Maximilian, Logoteta, Domenico, Perego, Albino, Radice, David
We present 3D general-relativistic neutrino-radiation hydrodynamics simulations of asymmetric binary neutron star mergers producing long-lived neutron stars remnants and spanning a fraction of their cooling time scale. Two binaries with mass ratios o
Externí odkaz:
http://arxiv.org/abs/2409.18185
Publikováno v:
ApJL 974 L5 (2024)
Understanding the details of $r$-process nucleosynthesis in binary neutron star mergers (BNSM) ejecta is key to interpreting kilonova observations and identifying the role of BNSMs in the origin of heavy elements. We present a self-consistent two-dim
Externí odkaz:
http://arxiv.org/abs/2403.13883
Autor:
Breschi, Matteo, Gamba, Rossella, Carullo, Gregorio, Godzieba, Daniel, Bernuzzi, Sebastiano, Perego, Albino, Radice, David
Publikováno v:
A&A 689, A51 (2024)
We present a Bayesian framework for joint and coherent analyses of multimessenger binary neutron star signals. The method, implemented in our bajes infrastructure, incorporates a joint likelihood for multiple datasets, support for various semi-analyt
Externí odkaz:
http://arxiv.org/abs/2401.03750
Autor:
Camilletti, Alessandro, Perego, Albino, Guercilena, Federico Maria, Bernuzzi, Sebastiano, Radice, David
Accretion disks formed in binary neutron star mergers play a central role in many astrophysical processes of interest, including the launching of relativistic jets or the ejection of neutron-rich matter hosting heavy element nucleosynthesis. In this
Externí odkaz:
http://arxiv.org/abs/2401.04102
Autor:
Bandyopadhyay, Harshraj, Radice, David, Prakash, Aviral, Dhani, Arnab, Logoteta, Domenico, Perego, Albino, Kashyap, Rahul
We study the ringdown signal of black holes formed in prompt-collapse binary neutron star mergers. We analyze data from $47$ numerical relativity simulations. We show that the $(\ell=2,m=2)$ and $(\ell=2,m=1)$ multipoles of the gravitational wave sig
Externí odkaz:
http://arxiv.org/abs/2312.11620
Publikováno v:
ApJL 962 L24 (2024)
The recent detection of the live isotopes $^{60}{\rm Fe}$ and $^{244}{\rm Pu}$ in deep ocean sediments dating back to the past 3-4 Myr poses a serious challenge to the identification of their production site(s). While $^{60}{\rm Fe}$ is usually attri
Externí odkaz:
http://arxiv.org/abs/2311.17159
Autor:
Ricigliano, Giacomo, Perego, Albino, Borhanian, Ssohrab, Loffredo, Eleonora, Kawaguchi, Kyohei, Bernuzzi, Sebastiano, Lippold, Lukas Chris
After GW170817, kilonovae have become of great interest for the astronomical, astrophysics and nuclear physics communities, due to their potential in revealing key information on the compact binary merger from which they emerge, such as the fate of t
Externí odkaz:
http://arxiv.org/abs/2311.15709
Autor:
Espino, Pedro Luis, Hammond, Peter, Radice, David, Bernuzzi, Sebastiano, Gamba, Rossella, Zappa, Francesco, Micchi, Luis Felipe Longo, Perego, Albino
We study out-of-thermodynamic equilibrium effects in neutron star mergers with 3D general-relativistic neutrino-radiation large-eddy simulations. During merger, the cores of the neutron stars remain cold ($T \sim$ a few MeV) and out of thermodynamic
Externí odkaz:
http://arxiv.org/abs/2311.00031
Autor:
Radice, David, Ricigliano, Giacomo, Bhattacharya, Mukul, Perego, Albino, Fattoyev, Farrukh J., Murase, Kohta
Publikováno v:
Mon.Not.Roy.Astron.Soc. 528 (2024) 5836
It is widely believed that the binary neutron star merger GW190425 produced a black hole promptly upon merger. Motivated by the potential association with the fast radio burst FRB 20190425A, which took place 2.5~hours after the merger, we revisit the
Externí odkaz:
http://arxiv.org/abs/2309.15195
Autor:
Dhani, Arnab, Radice, David, Schütte-Engel, Jan, Gardner, Susan, Sathyaprakash, Bangalore, Logoteta, Domenico, Perego, Albino, Kashyap, Rahul
A direct detection of black hole formation in neutron star mergers would provide invaluable information about matter in neutron star cores and finite temperature effects on the nuclear equation of state. We study black hole formation in neutron star
Externí odkaz:
http://arxiv.org/abs/2306.06177