Fate of observers in circular motion

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Standard

Fate of observers in circular motion. / Lehebel, Antoine; Cardoso, Vitor.

I: Physical Review D, Bind 105, Nr. 6, 064014, 08.03.2022.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Lehebel, A & Cardoso, V 2022, 'Fate of observers in circular motion', Physical Review D, bind 105, nr. 6, 064014. https://doi.org/10.1103/PhysRevD.105.064014

APA

Lehebel, A., & Cardoso, V. (2022). Fate of observers in circular motion. Physical Review D, 105(6), [064014]. https://doi.org/10.1103/PhysRevD.105.064014

Vancouver

Lehebel A, Cardoso V. Fate of observers in circular motion. Physical Review D. 2022 mar. 8;105(6). 064014. https://doi.org/10.1103/PhysRevD.105.064014

Author

Lehebel, Antoine ; Cardoso, Vitor. / Fate of observers in circular motion. I: Physical Review D. 2022 ; Bind 105, Nr. 6.

Bibtex

@article{0c64638b1d7448e19914c342af08168c,
title = "Fate of observers in circular motion",
abstract = "In Newtonian physics or in general relativity, energy dissipation causes observers moving along circular orbits to slowly spiral toward the source of the gravitational field. We show that the loss of energy has the same effect in any theory of gravity respecting the weak equivalence principle, by exhibiting an intimate relation between the energy of a massive test particle and the stability of its orbit. Ultimately, massive particles either plunge, or are driven towards minima of the generalized Newtonian potential, where they become static. In addition, we construct a toy metric which displays an unbound innermost stable circular orbit, allowing particles that reach this orbit to be expelled away.",
keywords = "FIELD",
author = "Antoine Lehebel and Vitor Cardoso",
year = "2022",
month = mar,
day = "8",
doi = "10.1103/PhysRevD.105.064014",
language = "English",
volume = "105",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "6",

}

RIS

TY - JOUR

T1 - Fate of observers in circular motion

AU - Lehebel, Antoine

AU - Cardoso, Vitor

PY - 2022/3/8

Y1 - 2022/3/8

N2 - In Newtonian physics or in general relativity, energy dissipation causes observers moving along circular orbits to slowly spiral toward the source of the gravitational field. We show that the loss of energy has the same effect in any theory of gravity respecting the weak equivalence principle, by exhibiting an intimate relation between the energy of a massive test particle and the stability of its orbit. Ultimately, massive particles either plunge, or are driven towards minima of the generalized Newtonian potential, where they become static. In addition, we construct a toy metric which displays an unbound innermost stable circular orbit, allowing particles that reach this orbit to be expelled away.

AB - In Newtonian physics or in general relativity, energy dissipation causes observers moving along circular orbits to slowly spiral toward the source of the gravitational field. We show that the loss of energy has the same effect in any theory of gravity respecting the weak equivalence principle, by exhibiting an intimate relation between the energy of a massive test particle and the stability of its orbit. Ultimately, massive particles either plunge, or are driven towards minima of the generalized Newtonian potential, where they become static. In addition, we construct a toy metric which displays an unbound innermost stable circular orbit, allowing particles that reach this orbit to be expelled away.

KW - FIELD

U2 - 10.1103/PhysRevD.105.064014

DO - 10.1103/PhysRevD.105.064014

M3 - Journal article

VL - 105

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 6

M1 - 064014

ER -

ID: 302382472