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http://hdl.handle.net/10773/16938
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DC Field | Value | Language |
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dc.contributor.author | Cunha, Pedro V. P. | pt |
dc.contributor.author | Herdeiro, Carlos A. R. | pt |
dc.contributor.author | Radu, Eugen | pt |
dc.contributor.author | Runarsson, Helgi F. | pt |
dc.date.accessioned | 2017-03-01T15:45:42Z | - |
dc.date.issued | 2016-08 | - |
dc.identifier.issn | 0218-2718 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/16938 | - |
dc.description.abstract | For an observer, the Black Hole (BH) shadow is the BHs apparent image in the sky due to the gravitational lensing of nearby radiation, emitted by an external source. A recent class of solutions dubbed Kerr BHs with scalar hair possess smaller shadows than the corresponding Kerr BHs and, under some conditions, novel exotic shadow shapes can arise. Thus, these hairy BHs could potentially provide new shadow templates for future experiments such as the Event Horizon Telescope. In order to obtain the shadows, the backward ray-tracing algorithm is briefly introduced, followed by numerical examples of shadows of Kerr BHs with scalar hair contrasting with the Kerr analogues. Additionally, an analytical solution for the Kerr shadow is derived in closed form for a ZAMO observer at an arbitrary position. | pt |
dc.language.iso | eng | pt |
dc.publisher | World Scientific Publishing | pt |
dc.relation | FCT-IDPASC Grant No. PD/BD/114071/2015 | pt |
dc.relation | Calouste Gulbenkian foundation | pt |
dc.relation | MAP-Fis - PD/BD/109532/2015 | pt |
dc.relation | H2020-MSCA-RISE-2015 Grant No. StronGrHEP-690904 | pt |
dc.relation | FCT/CIDMA - UID/MAT/04106/2013 | pt |
dc.rights | restrictedAccess | por |
dc.subject | Shadows | pt |
dc.subject | Black hole | pt |
dc.subject | Gravitational lensing | pt |
dc.title | Shadows of Kerr black holes with and without scalar hair | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
ua.event.title | 3rd Amazonian Symposium on Physics | |
degois.publication.firstPage | 1641021-1 | pt |
degois.publication.issue | 09 | pt |
degois.publication.issue | 9 | |
degois.publication.lastPage | 1641021-13 | pt |
degois.publication.title | International Journal of Modern Physics D | pt |
degois.publication.volume | 25 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.identifier.doi | 10.1142/S0218271816410212 | pt |
Appears in Collections: | CIDMA - Artigos DFis - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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IJMPD25(2016)1641021.pdf | 1.01 MB | Adobe PDF |
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