Observational signatures of hot spots orbiting horizonless objects

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Observational signatures of hot spots orbiting horizonless objects. / Rosa, Joao Luis; Garcia, Paulo; Vincent, Frederic H.; Cardoso, Vitor.

In: Physical Review D, Vol. 106, No. 4, 044031, 12.08.2022.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Rosa, JL, Garcia, P, Vincent, FH & Cardoso, V 2022, 'Observational signatures of hot spots orbiting horizonless objects', Physical Review D, vol. 106, no. 4, 044031. https://doi.org/10.1103/PhysRevD.106.044031

APA

Rosa, J. L., Garcia, P., Vincent, F. H., & Cardoso, V. (2022). Observational signatures of hot spots orbiting horizonless objects. Physical Review D, 106(4), [044031]. https://doi.org/10.1103/PhysRevD.106.044031

Vancouver

Rosa JL, Garcia P, Vincent FH, Cardoso V. Observational signatures of hot spots orbiting horizonless objects. Physical Review D. 2022 Aug 12;106(4). 044031. https://doi.org/10.1103/PhysRevD.106.044031

Author

Rosa, Joao Luis ; Garcia, Paulo ; Vincent, Frederic H. ; Cardoso, Vitor. / Observational signatures of hot spots orbiting horizonless objects. In: Physical Review D. 2022 ; Vol. 106, No. 4.

Bibtex

@article{f6b0b7e3d5f94f8ba6c5dbd02fd5b560,
title = "Observational signatures of hot spots orbiting horizonless objects",
abstract = "Pushed by a number of advances, electromagnetic observatories have now reached the horizon scale of supermassive black holes. The existence and properties of horizons in our universe is one of the outstanding fundamental issues that can now be addressed. Here we investigate the ability to discriminate between black holes and compact, horizonless objects, focusing on the lensing of hot spots around compact objects. We work in particular with boson and Proca stars as central objects, and show that the absence of a horizon gives rise to a characteristic feature-photons that plow through the central object and produce an extra image. This feature should be universal for central objects made of matter weakly coupled to the standard model.",
keywords = "NEAR-INFRARED FLARES, A-ASTERISK, GRAVITATIONAL COLLAPSE, OPTICAL APPEARANCE, GENERAL-RELATIVITY, BOSON, SHADOW",
author = "Rosa, {Joao Luis} and Paulo Garcia and Vincent, {Frederic H.} and Vitor Cardoso",
year = "2022",
month = aug,
day = "12",
doi = "10.1103/PhysRevD.106.044031",
language = "English",
volume = "106",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Observational signatures of hot spots orbiting horizonless objects

AU - Rosa, Joao Luis

AU - Garcia, Paulo

AU - Vincent, Frederic H.

AU - Cardoso, Vitor

PY - 2022/8/12

Y1 - 2022/8/12

N2 - Pushed by a number of advances, electromagnetic observatories have now reached the horizon scale of supermassive black holes. The existence and properties of horizons in our universe is one of the outstanding fundamental issues that can now be addressed. Here we investigate the ability to discriminate between black holes and compact, horizonless objects, focusing on the lensing of hot spots around compact objects. We work in particular with boson and Proca stars as central objects, and show that the absence of a horizon gives rise to a characteristic feature-photons that plow through the central object and produce an extra image. This feature should be universal for central objects made of matter weakly coupled to the standard model.

AB - Pushed by a number of advances, electromagnetic observatories have now reached the horizon scale of supermassive black holes. The existence and properties of horizons in our universe is one of the outstanding fundamental issues that can now be addressed. Here we investigate the ability to discriminate between black holes and compact, horizonless objects, focusing on the lensing of hot spots around compact objects. We work in particular with boson and Proca stars as central objects, and show that the absence of a horizon gives rise to a characteristic feature-photons that plow through the central object and produce an extra image. This feature should be universal for central objects made of matter weakly coupled to the standard model.

KW - NEAR-INFRARED FLARES

KW - A-ASTERISK

KW - GRAVITATIONAL COLLAPSE

KW - OPTICAL APPEARANCE

KW - GENERAL-RELATIVITY

KW - BOSON

KW - SHADOW

U2 - 10.1103/PhysRevD.106.044031

DO - 10.1103/PhysRevD.106.044031

M3 - Journal article

VL - 106

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 4

M1 - 044031

ER -

ID: 321840802