Conveners
New frontier of multi messenger astrophysics: follow up of electromagnetic transient counterpart of gravitational wave sources: Friday block 1
- Fabio Ragosta ()
- Silvia Piranomonte (INAF Osservatorio Astronomico di Roma)
New frontier of multi messenger astrophysics: follow up of electromagnetic transient counterpart of gravitational wave sources: Friday block 2
- Fabio Ragosta ()
- Silvia Piranomonte (INAF Osservatorio Astronomico di Roma)
Description
The first detection of an EM counterpart of a GW detection creates a possibility for a new way of thinking the astronomy, multi-messenger observations of GW170817 helped us construct a more comprehensive picture of compact binary mergers in an astrophysical context; and it has even enabled us to put significant constraints on topics of broad interest in physics from the neutron star equation of state to the expansion rate of the Universe. However, the expected counterpart from the neutron star-black hole system hasn’t been found yet. Furthermore, the most recent observing runs of the IGWN didn’t show any GW detection with a visible EM counterpart. This session aims to explore the lessons learned from the observed counterpart and the non-observation and to prepare the community for future detection.
The era of Gravitational Wave (GW) Astronomy started on 2015, with the first observation of GWs from the merger of a binary black hole (BBH) system by Advanced LIGO. Two years later, the detection of GWs from a binary neutron star (NS-NS) merger by the Advanced LIGO and Advanced Virgo network and of the associated electromagnetic (EM) signals marked the birth of multi-messenger astronomy with...
The fourth observing run (O4) of LIGO-Virgo-KAGRA is now ongoing, relying on the most sensitive network of gravitational-wave interferometers to date. In this talk, I will highlight in a multi-messenger context some of the most recent astrophysical findings and their implications for massive-star evolution, supernova theory, compact binary populations, and the search of electromagnetic and...
Next-generation gravitational-wave detectors will be able to explore a broad range of science case studies. Evaluating their detection and parameter-estimation capabilities is a mandatory step in the planning process. We will start by discussing currently available data analysis tools that allow us to do forecasts. In particular, we will talk about GWFish, a software that simulates...
The Einstein Telescope (ET), third generation gravitational wave (GW) interferometer, will explore a large volume of the universe, detecting up to 10$^{5}$ binary neutron star system mergers (BNS) per year, beyond redshift z ~ 3. This will clearly revolutionize GW multi-messenger (MM) astrophysics. A significant amount of electromagnetic (EM) counterpart candidates will be provided by...
The detection of the gravitational wave (GW) signal GW170817 and the electromagnetic (EM) signal AT2017gfo confirmed the association between binary neutron star (BNS) mergers and kilonovae (KNe) and showed the potential of joint detection to unveil the nature of neutron stars and the nucleosynthesis of heavy elements in the Universe. The next-generation GW interferometers, such as the Einstein...
Millisecond pulsars (MSPs) are fast-spinning neutron stars formed in binary systems through mass-accretion from a companion star. A large fraction are found in star clusters, such as globular clusters, whose high stellar densities create a collisional environment in which 2 and 3-body gravitational interactions are promoted. These interactions are responsible not only for the formation of a...
I will review the properties of kilonova host galaxies, focusing in particular on kilonovae detected from their associated gamma-ray burst component. A special consideration will be devoted to the physical properties of KNe, such as the offset from their hosts, and considerations on their formation channels.
