19–23 Dec 2024
Swatantrata Bhavan, Banaras Hindu University, Varanasi
Asia/Kolkata timezone

Constraining the neutron star equation of state by including the isoscalar-vector and isovector-vector coupling using the Bayesian approach

Not scheduled
20m
Swatantrata Bhavan, Banaras Hindu University, Varanasi

Swatantrata Bhavan, Banaras Hindu University, Varanasi

Department of Physics, I.Sc., Banaras Hindu University, 221005 Varanasi, India
Oral Astroparticle physics and cosmology

Speaker

Dr Deepak Kumar (Indian Institute of Science Education and Research Bhopal, Madhya Pradesh, 462066, India)

Description

We constrain the nuclear matter equation of state by including the isoscalar-vector and isovector-vector coupling using the Bayesian approach. We use the recent observation GW190814 (R. Abbott et al 2020 ApJL 896 L44) for the compact star of mass 2.6 M$_{\odot}$ along with the nuclear saturation properties for finite and infinite nuclear matter at saturation properties at saturation and supra-saturation. Here we see that the cross coupling between isocalar-vector and isovector-vector is more effective to reach such high mass of compact star. We use FSUGold and IU-FSU parameters as the references. Finally, we discuss the effects of such coupling on the non-radial oscillations of neutron stars.

Authors

Dr Deepak Kumar (Indian Institute of Science Education and Research Bhopal, Madhya Pradesh, 462066, India) Dr Mrutunjaya Bhuyan (Instituto Tecnologico de Aeronautica) Pradip Kumar Sahu (Institute of Physics (IN))

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