Black hole tidal charge constrained by strong gravitational lensing

Z. S. Horváth, L. Gergely

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Spherically symmetric brane black holes have tidal charge which modifies both weak and strong lensing characteristics. Even if lensing measurements are in agreement with a Schwarzschild lens, the margin of error of the detecting instrument allows for a certain tidal charge only. In this paper we derive the respective constraint on the tidal charge of the supermassive black hole (SMBH) in the center of our galaxy, based on the radius of the first relativistic Einstein ring due to strong lensing. We find that even if general relativistic predictions are confirmed by high precision strong lensing measurements, SMBHs could have a much larger tidal charge than the Sun or neutron stars.

Original languageEnglish
Pages (from-to)1047-1050
Number of pages4
JournalAstronomische Nachrichten
Volume334
Issue number9
DOIs
Publication statusPublished - Nov 2013

Fingerprint

prediction
neutron stars
margins
sun
lenses
galaxies
stars
radii
rings
predictions

Keywords

  • Black hole physics
  • Galaxy: center
  • Gravitational lensing
  • Instrumentation: high angular resolution

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Black hole tidal charge constrained by strong gravitational lensing. / Horváth, Z. S.; Gergely, L.

In: Astronomische Nachrichten, Vol. 334, No. 9, 11.2013, p. 1047-1050.

Research output: Contribution to journalArticle

@article{088c51b5da2c4fdf8cc6c2c40653f235,
title = "Black hole tidal charge constrained by strong gravitational lensing",
abstract = "Spherically symmetric brane black holes have tidal charge which modifies both weak and strong lensing characteristics. Even if lensing measurements are in agreement with a Schwarzschild lens, the margin of error of the detecting instrument allows for a certain tidal charge only. In this paper we derive the respective constraint on the tidal charge of the supermassive black hole (SMBH) in the center of our galaxy, based on the radius of the first relativistic Einstein ring due to strong lensing. We find that even if general relativistic predictions are confirmed by high precision strong lensing measurements, SMBHs could have a much larger tidal charge than the Sun or neutron stars.",
keywords = "Black hole physics, Galaxy: center, Gravitational lensing, Instrumentation: high angular resolution",
author = "Horv{\'a}th, {Z. S.} and L. Gergely",
year = "2013",
month = "11",
doi = "10.1002/asna.201211992",
language = "English",
volume = "334",
pages = "1047--1050",
journal = "Astronomische Nachrichten",
issn = "0004-6337",
publisher = "Wiley-VCH Verlag",
number = "9",

}

TY - JOUR

T1 - Black hole tidal charge constrained by strong gravitational lensing

AU - Horváth, Z. S.

AU - Gergely, L.

PY - 2013/11

Y1 - 2013/11

N2 - Spherically symmetric brane black holes have tidal charge which modifies both weak and strong lensing characteristics. Even if lensing measurements are in agreement with a Schwarzschild lens, the margin of error of the detecting instrument allows for a certain tidal charge only. In this paper we derive the respective constraint on the tidal charge of the supermassive black hole (SMBH) in the center of our galaxy, based on the radius of the first relativistic Einstein ring due to strong lensing. We find that even if general relativistic predictions are confirmed by high precision strong lensing measurements, SMBHs could have a much larger tidal charge than the Sun or neutron stars.

AB - Spherically symmetric brane black holes have tidal charge which modifies both weak and strong lensing characteristics. Even if lensing measurements are in agreement with a Schwarzschild lens, the margin of error of the detecting instrument allows for a certain tidal charge only. In this paper we derive the respective constraint on the tidal charge of the supermassive black hole (SMBH) in the center of our galaxy, based on the radius of the first relativistic Einstein ring due to strong lensing. We find that even if general relativistic predictions are confirmed by high precision strong lensing measurements, SMBHs could have a much larger tidal charge than the Sun or neutron stars.

KW - Black hole physics

KW - Galaxy: center

KW - Gravitational lensing

KW - Instrumentation: high angular resolution

UR - http://www.scopus.com/inward/record.url?scp=84887168342&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84887168342&partnerID=8YFLogxK

U2 - 10.1002/asna.201211992

DO - 10.1002/asna.201211992

M3 - Article

AN - SCOPUS:84887168342

VL - 334

SP - 1047

EP - 1050

JO - Astronomische Nachrichten

JF - Astronomische Nachrichten

SN - 0004-6337

IS - 9

ER -