ECO-spotting: looking for extremely compact objects with bosonic fields

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

Standard

ECO-spotting : looking for extremely compact objects with bosonic fields. / Cardoso, Vitor; Macedo, Caio F. B.; Maeda, Kei-ichi; Okawa, Hirotada.

In: Classical and Quantum Gravity, Vol. 39, No. 3, 034001, 03.02.2022.

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

Harvard

Cardoso, V, Macedo, CFB, Maeda, K & Okawa, H 2022, 'ECO-spotting: looking for extremely compact objects with bosonic fields', Classical and Quantum Gravity, vol. 39, no. 3, 034001. https://doi.org/10.1088/1361-6382/ac41e7

APA

Cardoso, V., Macedo, C. F. B., Maeda, K., & Okawa, H. (2022). ECO-spotting: looking for extremely compact objects with bosonic fields. Classical and Quantum Gravity, 39(3), [034001]. https://doi.org/10.1088/1361-6382/ac41e7

Vancouver

Cardoso V, Macedo CFB, Maeda K, Okawa H. ECO-spotting: looking for extremely compact objects with bosonic fields. Classical and Quantum Gravity. 2022 Feb 3;39(3). 034001. https://doi.org/10.1088/1361-6382/ac41e7

Author

Cardoso, Vitor ; Macedo, Caio F. B. ; Maeda, Kei-ichi ; Okawa, Hirotada. / ECO-spotting : looking for extremely compact objects with bosonic fields. In: Classical and Quantum Gravity. 2022 ; Vol. 39, No. 3.

Bibtex

@article{ef184ee74f374680b9c22008606bfa6c,
title = "ECO-spotting: looking for extremely compact objects with bosonic fields",
abstract = "Black holes are thought to describe the geometry of massive, dark compact objects in the Universe. To further support and quantify this long-held belief requires knowledge of possible, if exotic alternatives. Here, we wish to understand how compact can self-gravitating solutions be. We discuss theories with a well-posed initial value problem, consisting in either a single self-interacting scalar, vector or both. We focus on spherically symmetric solutions, investigating the influence of self-interacting potentials into the compactness of the solutions, in particular those that allow for flat-spacetime solutions. We are able to connect such stars to hairy black hole solutions, which emerge as a zero-mass black hole. We show that such stars can have light rings, but their compactness is never parametrically close to that of black holes. The challenge of finding black hole mimickers to investigate full numerical-relativity binary setups remains open.",
keywords = "exotic compact objects, boson stars, compact objects, SOLITON STARS",
author = "Vitor Cardoso and Macedo, {Caio F. B.} and Kei-ichi Maeda and Hirotada Okawa",
year = "2022",
month = feb,
day = "3",
doi = "10.1088/1361-6382/ac41e7",
language = "English",
volume = "39",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "Institute of Physics Publishing Ltd",
number = "3",

}

RIS

TY - JOUR

T1 - ECO-spotting

T2 - looking for extremely compact objects with bosonic fields

AU - Cardoso, Vitor

AU - Macedo, Caio F. B.

AU - Maeda, Kei-ichi

AU - Okawa, Hirotada

PY - 2022/2/3

Y1 - 2022/2/3

N2 - Black holes are thought to describe the geometry of massive, dark compact objects in the Universe. To further support and quantify this long-held belief requires knowledge of possible, if exotic alternatives. Here, we wish to understand how compact can self-gravitating solutions be. We discuss theories with a well-posed initial value problem, consisting in either a single self-interacting scalar, vector or both. We focus on spherically symmetric solutions, investigating the influence of self-interacting potentials into the compactness of the solutions, in particular those that allow for flat-spacetime solutions. We are able to connect such stars to hairy black hole solutions, which emerge as a zero-mass black hole. We show that such stars can have light rings, but their compactness is never parametrically close to that of black holes. The challenge of finding black hole mimickers to investigate full numerical-relativity binary setups remains open.

AB - Black holes are thought to describe the geometry of massive, dark compact objects in the Universe. To further support and quantify this long-held belief requires knowledge of possible, if exotic alternatives. Here, we wish to understand how compact can self-gravitating solutions be. We discuss theories with a well-posed initial value problem, consisting in either a single self-interacting scalar, vector or both. We focus on spherically symmetric solutions, investigating the influence of self-interacting potentials into the compactness of the solutions, in particular those that allow for flat-spacetime solutions. We are able to connect such stars to hairy black hole solutions, which emerge as a zero-mass black hole. We show that such stars can have light rings, but their compactness is never parametrically close to that of black holes. The challenge of finding black hole mimickers to investigate full numerical-relativity binary setups remains open.

KW - exotic compact objects

KW - boson stars

KW - compact objects

KW - SOLITON STARS

U2 - 10.1088/1361-6382/ac41e7

DO - 10.1088/1361-6382/ac41e7

M3 - Journal article

VL - 39

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 3

M1 - 034001

ER -

ID: 298629241