GW230529: unveiling the hidden realm of the anisotropic neutron stars in the lower mass gap with gravitational wave echoes.
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| Title: | GW230529: unveiling the hidden realm of the anisotropic neutron stars in the lower mass gap with gravitational wave echoes. |
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| Authors: | Bandyopadhyay, Mayukh1 (AUTHOR) mayukhbandyopadhyay@yahoo.com |
| Source: | European Physical Journal C -- Particles & Fields. Dec2025, Vol. 85 Issue 12, p1-16. 16p. |
| Subjects: | Neutron stars, Anisotropy, Laser Interferometer Gravitational-Wave Observatory, Einstein field equations, Stellar collisions, Interferometers, Gravitational waves |
| Abstract: | Recent discovery of a compact binary coalescence through GW230529 by LIGO has indicated the merger event of a compact object of mass between 2.5 - 4.5 M ⊙ with a neutron star of mass between 1.2 - 2.0 M ⊙ . The mass of the unknown compact object makes it within the heaviest neutron star never tracked out or the lightest black hole ever detected. Here, we have shown that such a mass gap neutron star with this observed mass ( 2.5 - 4.5 M ⊙ ) can be explained consistently by f(R) gravity. We have also adopted the presence of pressure anisotropy inside the neutron star which supports a massive neutron star with mass more than 2.6 M ⊙ , compatible with LIGO data (GW190814). Further, the modified Tollman–Oppenheimer–Volkoff equations have acknowledged such a compact stellar structure that can produce gravitational wave echoes (frequencies remain in the range of 3 - 6 kHz). [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Recent discovery of a compact binary coalescence through GW230529 by LIGO has indicated the merger event of a compact object of mass between 2.5 - 4.5 M ⊙ with a neutron star of mass between 1.2 - 2.0 M ⊙ . The mass of the unknown compact object makes it within the heaviest neutron star never tracked out or the lightest black hole ever detected. Here, we have shown that such a mass gap neutron star with this observed mass ( 2.5 - 4.5 M ⊙ ) can be explained consistently by f(R) gravity. We have also adopted the presence of pressure anisotropy inside the neutron star which supports a massive neutron star with mass more than 2.6 M ⊙ , compatible with LIGO data (GW190814). Further, the modified Tollman–Oppenheimer–Volkoff equations have acknowledged such a compact stellar structure that can produce gravitational wave echoes (frequencies remain in the range of 3 - 6 kHz). [ABSTRACT FROM AUTHOR] |
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| ISSN: | 14346044 |
| DOI: | 10.1140/epjc/s10052-025-15231-5 |
