2025-04-04
20:24 |
|
The other side of cosmology: what we learn from first galaxies and black holes
/ Fontana, Adriano (speaker) (INAF Rome Observatory)
The young Universe - that is, the epoch when first stars, galaxies and black holes formed in less than 0.5 Gyr after the Big Bang - is one of the most actively studied sectors of astrophysics, with deep connections to fundamental physics. In my talk (targeted to non-specialists) I will present how recent observations - mostly obtained with the space telescope JWST and the ground-based sub-mm array ALMA - are revolutionising our understanding of the formation of the first galaxies and their embedded Black Holes.
The physical nature of these galaxies is challenging our models of early galaxy formation, showing that the formation of the first stars has been more efficient than previously expected.
These galaxies also appear to host Black Holes that are more numerous and massive than expected, opening the possibility that they do not descend from stellar seeds but rather from primordial black holes of different nature.
I will finally discuss how these discoveries offer a new way to provide independent constraints on some classes of non-standard cosmologies that are being proposed to address the tensions in the current Λ-CDM model.
2025 - 3965.
Academic Training Lecture Regular Programme, 2024-2025
External link: Event details
In : The other side of cosmology: what we learn from first galaxies and black holes
|
Αναλυτική εγγραφή
|
2025-04-04
14:06 |
|
CEMTM "The White Rabbit Collaboration"
/ Serrano, Javier (speaker) (CERN)
White Rabbit (WR) is an open-source synchronisation technology born at CERN and developed with other institutes and companies. It is commercially available from several vendors, and its adoption in industry and academia increased significantly after it was standardised as part of the Precise Time Protocol (IEEE 1588). [...]
2025 - 3658.
CEM Technical meetings
External link: Event details
In : CEMTM "The White Rabbit Collaboration"
|
Αναλυτική εγγραφή
|
2025-04-04
14:05 |
|
Initial stage jet momentum broadening in a Light-Front Hamiltonian approach
/ Lamas, Carlos (speaker) (IGFAE-USC)
We study the momentum broadening of a high energy quark jet in the high-density gluon medium created right after the collision of two ultrarrelativistic heavy nuclei, the Glasma. Previous Glasma studies consider the jet as a classical probe particle, for which position and momentum are simultaneously determined. [...]
2025 - 1156.
TH institutes; High energy probes of the initial stages
External links: Talk details; Event details
In : High energy probes of the initial stages
|
Αναλυτική εγγραφή
|
2025-04-04
14:04 |
Αναλυτική εγγραφή
|
2025-04-04
14:04 |
Αναλυτική εγγραφή
|
2025-04-04
14:00 |
Αναλυτική εγγραφή
|
2025-04-04
12:39 |
|
Catching Dense Spectra at Large Spin
/ Pal, Sridip (speaker) (Caltech)
We prove that in any unitary, modular-invariant 2d CFT with central charge c>1, a normalizable vacuum, and a twist gap in the spectrum of Virasoro primaries, there exists a continuous family of twist accumulation points above (c−1)/12 [the BTZ threshold]. We derive an asymptotic formula for the number of spin-J Virasoro primaries within a fixed twist window, as J→∞ [...]
2025 - 4066.
TH String Theory Seminar
External link: Event details
In : Catching Dense Spectra at Large Spin
|
Αναλυτική εγγραφή
|
2025-04-04
12:33 |
|
Superintelligent Agents Pose Catastrophic Risks: Can Scientist AI Offer a Safer Path?
/ Bengio, Yoshua (speaker) (Université de Montreal)
The leading AI companies are increasingly focused on building generalist AI agents — systems that can autonomously plan, act, and pursue goals across almost all tasks that humans can perform. Despite how useful these systems might be, unchecked AI agency poses significant risks to public safety and security, ranging from misuse by malicious actors to a potentially irreversible loss of human control [...]
2025 - 5570.
CERN Colloquium
External link: Event details
In : Superintelligent Agents Pose Catastrophic Risks: Can Scientist AI Offer a Safer Path?
|
Αναλυτική εγγραφή
|
2025-04-04
09:34 |
Αναλυτική εγγραφή
|
2025-04-04
09:34 |
Αναλυτική εγγραφή
|