Horváth, Zsolt and Gergely, Árpád László (2013) Black hole tidal charge constrained by strong gravitational lensing. ASTRONOMISCHE NACHRICHTEN, 334 (9). pp. 1047-1050. ISSN 0004-6337
|
Text
1203.6576v2.pdf Available under License Creative Commons Attribution. Download (98kB) | Preview |
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. In this paper we derive the respective constraint on the tidal charge of the supermassive black hole (SMBH) in the center of our galaxy, from the radius of the first relativistic Einstein ring, emerging in 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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | gravitational lensing, Galaxy: center, instrumentation: high angular resolution |
| Subjects: | Q Science / természettudomány > QB Astronomy, Astrophysics / csillagászat, asztrofizika |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 09 Aug 2024 09:54 |
| Last Modified: | 09 Aug 2024 09:54 |
| URI: | https://real.mtak.hu/id/eprint/202234 |
Actions (login required)
 |
Edit Item |
