| Name: | Bikram Keshari Pradhan |
| Affiliation: | IUCAA, INDIA |
| Conference ID : | ASI2024_258 |
| Title : | Probing hadron-quark phase transition in twin stars using Gravitational waves from Neutron Star $f$-modes |
| Authors : | Bikram K. Pradhan, Debarati Chatterjee, David Edwin Alvarez-Castillo |
| Authors Affiliation: | Bikram K. Pradhan, Debarati Chatterjee, Inter-University Centre for Astronomy and Astrophysics, Pune, 411007, India
David Edwin Alvarez-Castillo, The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
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| Mode of Presentation: | Poster |
| Abstract Category : | High Energy Phenomena, Fundamental Physics and Astronomy |
| Abstract : | Although it is conjectured that a phase transition from hadronic to deconfined quark matter is possible in the ultrahigh-density environment in Neutron Stars, the nature of such a transition is still unknown. Depending on whether there is a strong and crossover phase transition, one may expect a third family of stable compact stars or “twin stars" to appear, with the
same mass but different radii compared to Neutron stars. The possibility of identifying twin stars using astrophysical observations has been a subject of interest, which has gained further momentum with the recent detection of gravitational waves from binary neutron stars. In this work, we investigate for the first time the prospect of probing the nature of hadron-quark phase transition
with future detection of gravitational waves from unstable fundamental (f-) mode oscillations in Neutron Stars. Our investigations suggest that the detection of gravitational waves
emanating from the f-modes with the third-generation gravitational wave detectors offers a promising scenario for confirming the existence of the twin stars and hence revealing the nature of the hadron quark phase transition. We also estimate the various uncertainties associated with the determination of the mode parameters and conclude that these uncertainties make the situation more challenging to identify the nature of the hadron-quark phase transition. |
