國立高雄大學圖資館 |

Language: English

Back

Universal relations for binary neutron star mergers with long-lived remnants

Record Type:	Electronic resources : Monograph/item
Title/Author:	Universal relations for binary neutron star mergers with long-lived remnantsby Praveen Manoharan.
Author:	Manoharan, Praveen.
Published:	Wiesbaden :Springer Fachmedien Wiesbaden :2022.
Description:	xiv, 65 p. :ill., digital ;24 cm.
Contained By:	Springer Nature eBook
Subject:	Stellar mergers.
Online resource:	https://doi.org/10.1007/978-3-658-36841-8
ISBN:	9783658368418$q(electronic bk.)

Universal relations for binary neutron star mergers with long-lived remnants
Manoharan, Praveen.

Universal relations for binary neutron star mergers with long-lived remnants[electronic resource] /by Praveen Manoharan. - Wiesbaden :Springer Fachmedien Wiesbaden :2022. - xiv, 65 p. :ill., digital ;24 cm. - BestMasters,2625-3615. - BestMasters..

Introduction -- Related Work -- Theory -- Methodology -- Results -- Discussion & Conclusion.

In the last 25 years, an extensive body of work has developed various equation of state independent - or (approximately) universal - relations that allow for the inference of neutron star parameters from gravitational wave observations. These works, however, have mostly been focused on singular neutron stars, while our observational efforts at the present, and in the near future, will be focused on binary neutron star (BNS) mergers. In light of these circumstances, the last five years have also given rise to more attempts at developing universal relations that relate BNS pre-merger neutron stars to stellar parameters of the post-merger object, mostly driven by numerical relativity simulations. In this thesis a first attempt at perturbatively deriving universal relations for binary neutron star mergers with long-lived neutron star remnants is presented. The author succeeds in confirming previous results relating pre-merger binary tidal deformabilities to the f-mode frequency of the post-merger object. Combining this result with recent advances of computing the f-mode frequency of fast rotating neutron stars, he also derives a combined relation that relates the pre-merger binary tidal deformability of a BNS to the effective compactness of a long-lived neutron star remnant. Finally, he also proposes a direct relation between these quantities with improved accuracy. About the author Praveen Manoharan is PhD student at Tubingen University, Institute for Theoretical Astrophysics.

ISBN: 9783658368418$q(electronic bk.)

Standard No.: 10.1007/978-3-658-36841-8doiSubjects--Topical Terms:

925506
Stellar mergers.

LC Class. No.: QB812 / .M35 2022

Dewey Class. No.: 523.8874

Universal relations for binary neutron star mergers with long-lived remnants
LDR:02633nmm a2200337 a 4500 001 623350
003 DE-He213
005 20220328133807.0
006 m d
007 cr nn 008maaau
008 221209s2022 gw s 0 eng d
020 $a 9783658368418$q(electronic bk.)
020 $a 9783658368401$q(paper)
024 7 $a 10.1007/978-3-658-36841-8 $2 doi
035 $a 978-3-658-36841-8
040 $a GP $c GP
041 0 $a eng
050 4 $a QB812 $b .M35 2022
072 7 $a PG $2 bicssc
072 7 $a SCI004000 $2 bisacsh
072 7 $a PG $2 thema
082 0 4 $a 523.8874 $2 23
090 $a QB812 $b .M285 2022
100 1 $a Manoharan, Praveen. $3 925505
245 1 0 $a Universal relations for binary neutron star mergers with long-lived remnants $h [electronic resource] / $c by Praveen Manoharan.
260 $a Wiesbaden : $b Springer Fachmedien Wiesbaden : $b Imprint: Springer Spektrum, $c 2022.
300 $a xiv, 65 p. : $b ill., digital ; $c 24 cm.
490 1 $a BestMasters, $x 2625-3615
505 0 $a Introduction -- Related Work -- Theory -- Methodology -- Results -- Discussion & Conclusion.
520 $a In the last 25 years, an extensive body of work has developed various equation of state independent - or (approximately) universal - relations that allow for the inference of neutron star parameters from gravitational wave observations. These works, however, have mostly been focused on singular neutron stars, while our observational efforts at the present, and in the near future, will be focused on binary neutron star (BNS) mergers. In light of these circumstances, the last five years have also given rise to more attempts at developing universal relations that relate BNS pre-merger neutron stars to stellar parameters of the post-merger object, mostly driven by numerical relativity simulations. In this thesis a first attempt at perturbatively deriving universal relations for binary neutron star mergers with long-lived neutron star remnants is presented. The author succeeds in confirming previous results relating pre-merger binary tidal deformabilities to the f-mode frequency of the post-merger object. Combining this result with recent advances of computing the f-mode frequency of fast rotating neutron stars, he also derives a combined relation that relates the pre-merger binary tidal deformability of a BNS to the effective compactness of a long-lived neutron star remnant. Finally, he also proposes a direct relation between these quantities with improved accuracy. About the author Praveen Manoharan is PhD student at Tubingen University, Institute for Theoretical Astrophysics.
650 0 $a Stellar mergers. $3 925506
650 0 $a Neutron stars. $3 339855
650 1 4 $a Astronomy, Cosmology and Space Sciences. $3 913462
650 2 4 $a Astrophysics. $3 225419
710 2 $a SpringerLink (Online service) $3 273601
773 0 $t Springer Nature eBook
830 0 $a BestMasters. $3 676593
856 4 0 $u https://doi.org/10.1007/978-3-658-36841-8
950 $a Physics and Astronomy (SpringerNature-11651)