Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory

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Standard

Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory. / Guo, Minyong; Song, Shupeng; Yan, Haopeng.

I: Physical Review D, Bind 101, Nr. 2, 024055, 30.01.2020.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Guo, M, Song, S & Yan, H 2020, 'Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory', Physical Review D, bind 101, nr. 2, 024055. https://doi.org/10.1103/PhysRevD.101.024055

APA

Guo, M., Song, S., & Yan, H. (2020). Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory. Physical Review D, 101(2), [024055]. https://doi.org/10.1103/PhysRevD.101.024055

Vancouver

Guo M, Song S, Yan H. Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory. Physical Review D. 2020 jan. 30;101(2). 024055. https://doi.org/10.1103/PhysRevD.101.024055

Author

Guo, Minyong ; Song, Shupeng ; Yan, Haopeng. / Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory. I: Physical Review D. 2020 ; Bind 101, Nr. 2.

Bibtex

@article{a1311deb5ddd467c8718a652e71443b2,
title = "Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory",
abstract = "We analytically study the optical appearance of an isotropically emitter orbiting near the horizon of a near-extremely rotating Kerr-Sen (KS) black hole which is an electrically charged black hole arising in heterotic string theory. We study the influence of the Sen charge on the observational quantities, including the image position, flux and redshift factor. Moreover, we compare the results with those for a near-extremal Kerr-Newman (KN) black hole, which is the charged rotating black hole in general relativity. We find quantitative corrections of the signatures of these charged black holes (both KS and KN) compare to that of a neutral Kerr black hole. This may serve as distinctive features of different black holes for future tests by the Event Horizon Telescope.",
keywords = "OPTICAL APPEARANCE",
author = "Minyong Guo and Shupeng Song and Haopeng Yan",
year = "2020",
month = jan,
day = "30",
doi = "10.1103/PhysRevD.101.024055",
language = "English",
volume = "101",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "2",

}

RIS

TY - JOUR

T1 - Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory

AU - Guo, Minyong

AU - Song, Shupeng

AU - Yan, Haopeng

PY - 2020/1/30

Y1 - 2020/1/30

N2 - We analytically study the optical appearance of an isotropically emitter orbiting near the horizon of a near-extremely rotating Kerr-Sen (KS) black hole which is an electrically charged black hole arising in heterotic string theory. We study the influence of the Sen charge on the observational quantities, including the image position, flux and redshift factor. Moreover, we compare the results with those for a near-extremal Kerr-Newman (KN) black hole, which is the charged rotating black hole in general relativity. We find quantitative corrections of the signatures of these charged black holes (both KS and KN) compare to that of a neutral Kerr black hole. This may serve as distinctive features of different black holes for future tests by the Event Horizon Telescope.

AB - We analytically study the optical appearance of an isotropically emitter orbiting near the horizon of a near-extremely rotating Kerr-Sen (KS) black hole which is an electrically charged black hole arising in heterotic string theory. We study the influence of the Sen charge on the observational quantities, including the image position, flux and redshift factor. Moreover, we compare the results with those for a near-extremal Kerr-Newman (KN) black hole, which is the charged rotating black hole in general relativity. We find quantitative corrections of the signatures of these charged black holes (both KS and KN) compare to that of a neutral Kerr black hole. This may serve as distinctive features of different black holes for future tests by the Event Horizon Telescope.

KW - OPTICAL APPEARANCE

U2 - 10.1103/PhysRevD.101.024055

DO - 10.1103/PhysRevD.101.024055

M3 - Journal article

VL - 101

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 2

M1 - 024055

ER -

ID: 248235261