Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers

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Standard

Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers. / Boskovic, Mateja; Duque, Francisco; Ferreira, Miguel C.; Miguel, Filipe S.; Cardoso, Vitor.

I: Physical Review D, Bind 98, Nr. 2, 024037, 23.07.2018.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Boskovic, M, Duque, F, Ferreira, MC, Miguel, FS & Cardoso, V 2018, 'Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers', Physical Review D, bind 98, nr. 2, 024037. https://doi.org/10.1103/PhysRevD.98.024037

APA

Boskovic, M., Duque, F., Ferreira, M. C., Miguel, F. S., & Cardoso, V. (2018). Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers. Physical Review D, 98(2), [024037]. https://doi.org/10.1103/PhysRevD.98.024037

Vancouver

Boskovic M, Duque F, Ferreira MC, Miguel FS, Cardoso V. Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers. Physical Review D. 2018 jul. 23;98(2). 024037. https://doi.org/10.1103/PhysRevD.98.024037

Author

Boskovic, Mateja ; Duque, Francisco ; Ferreira, Miguel C. ; Miguel, Filipe S. ; Cardoso, Vitor. / Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers. I: Physical Review D. 2018 ; Bind 98, Nr. 2.

Bibtex

@article{cba7271f545140449a69779e15736753,
title = "Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers",
abstract = "We consider motion in spherically symmetric but time-dependent backgrounds. This problem is of interest, for example, in the context of ultralight dark matter, where galactic haloes produce a time-dependent and periodic gravitational potential. We study the properties of motion of stars in such spacetimes, for different field strengths and frequency, and including dissipative effects. We show that orbital resonances may occur and that spectroscopic emission lines from stars in these geometries exhibit characteristic, periodic modulation patterns. In addition, we work out a fully relativistic and weak-field description of a special class of time-periodic geometries, that of scalar oscillatons. When applied to the galactic center, our results indicate that the motion of S2-like stars may carry distinguishable observational imprints of ultralight dark matter.",
keywords = "MILKY-WAY, REDSHIFT, SOLITONS, SHIFTS, STARS",
author = "Mateja Boskovic and Francisco Duque and Ferreira, {Miguel C.} and Miguel, {Filipe S.} and Vitor Cardoso",
year = "2018",
month = jul,
day = "23",
doi = "10.1103/PhysRevD.98.024037",
language = "English",
volume = "98",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "2",

}

RIS

TY - JOUR

T1 - Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers

AU - Boskovic, Mateja

AU - Duque, Francisco

AU - Ferreira, Miguel C.

AU - Miguel, Filipe S.

AU - Cardoso, Vitor

PY - 2018/7/23

Y1 - 2018/7/23

N2 - We consider motion in spherically symmetric but time-dependent backgrounds. This problem is of interest, for example, in the context of ultralight dark matter, where galactic haloes produce a time-dependent and periodic gravitational potential. We study the properties of motion of stars in such spacetimes, for different field strengths and frequency, and including dissipative effects. We show that orbital resonances may occur and that spectroscopic emission lines from stars in these geometries exhibit characteristic, periodic modulation patterns. In addition, we work out a fully relativistic and weak-field description of a special class of time-periodic geometries, that of scalar oscillatons. When applied to the galactic center, our results indicate that the motion of S2-like stars may carry distinguishable observational imprints of ultralight dark matter.

AB - We consider motion in spherically symmetric but time-dependent backgrounds. This problem is of interest, for example, in the context of ultralight dark matter, where galactic haloes produce a time-dependent and periodic gravitational potential. We study the properties of motion of stars in such spacetimes, for different field strengths and frequency, and including dissipative effects. We show that orbital resonances may occur and that spectroscopic emission lines from stars in these geometries exhibit characteristic, periodic modulation patterns. In addition, we work out a fully relativistic and weak-field description of a special class of time-periodic geometries, that of scalar oscillatons. When applied to the galactic center, our results indicate that the motion of S2-like stars may carry distinguishable observational imprints of ultralight dark matter.

KW - MILKY-WAY

KW - REDSHIFT

KW - SOLITONS

KW - SHIFTS

KW - STARS

U2 - 10.1103/PhysRevD.98.024037

DO - 10.1103/PhysRevD.98.024037

M3 - Journal article

VL - 98

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 2

M1 - 024037

ER -

ID: 299201670