IWARA2020 Video Conference - 9th International Workshop on Astronomy and Relativistic Astrophysics

Session

COMPACT STARS, DM, GWs, PARTICLES, ϒ-RAYS, QGP QCD, HIC, SNOVAE

9 Sept 2020, 08:00

65. The highest gamma ray energy sources observed by HAWC and the Galactic Pevatrons

Andrés Sandoval (Instituto de Física, UNAM)

09/09/2020, 08:00

Talk

The HAWC gamma ray observatory situated at 4200 m altitude in the Volcan Sierra Negra, Central Mexico, has observed several sources that emit gamma rays of energies greater than 50 TeV. What are they? What is the production mechanism? How do they look in other frequencies? How do they relate to the sources of energetic cosmic rays? These are some of the questions that will be discussed.

66. The Southern Wide Field Gamma Ray Observatory (SWGO)

Ulisses Barres (Centro Brasileiro de Pesquisas Físicas)

09/09/2020, 08:30

Talk

The scientific potential of a wide field of view, and very high duty cycle, ground based gamma ray detector has been demonstrated by the current generation of instruments, such as HAWC and ARGO, and will be further extended in the Northern hemisphere by LHAASO. Nevertheless, no such instrument exists in the southern hemisphere yet, where a great potential lies uncovered for the mapping of...

67. Can gravitational waves prove the existence of the quark- gluon plasma?

Matthias Hanauske (Institut für Theoretische Physik)

09/09/2020, 09:00

Talk

The long-awaited detection of a gravitational wave (GW) from the merger of a binary neutron star (BNS) in August 2017 (GW170817) marked the beginning of the new field of multi-messenger gravitational wave astronomy. By exploiting the extracted tidal deformations of the two neutron stars from the late inspiral phase of GW170817, it was possible to constrain several global properties of the...

68. NS 1987A in SN 1987A

Dany Page (Universidad Nacional Autonoma de Mexico)

09/09/2020, 09:30

Talk

The possible detection of a compact object in the remnant of SN 1987A presents an unprecedented opportunity to follow its early evolution. The suspected detection stems from an excess of infrared emission from a dust blob near the compact object's predicted position. The infrared excess could be due to the decay of isotopes like 44Ti, accretion luminosity from a neutron star or black hole,...

70. Properties of the QGP created in heavy-ion collisions

Elena Bratkovskaya (GSI, Darmstadt & GU, Frankfurt)

09/09/2020, 11:30

Talk

We review the properties of the strongly interacting quark-gluon plasma (QGP) created in heavy-ion collisions at ultrarelativistic energies, i.e. out-of equilibrium, and compare them to the equilibrium case.
The description of the strongly interacting (non-perturbative) QGP in equilibrium is based on the effective propagators and couplings from the Dynamical QuasiParticle Model (DQPM) that is...

76. The nuclear equation of state at highest compression - from gravitational waves and high energy heavy ion collisions

Horst Stoecker (GSi)

09/09/2020, 12:30

Talk

Compressed hot nuclear matter can be produced in high energy heavy ion collisions and in supernova collapse and binary neutron star mergers. Relativistic numerical nuclear fluid dynamics demonstrates that the densities and temperatures reached in these cosmic environments match neatly those reached at the new international FAIR facility in Europe. The gravitational wave spectrum of the former...