Shadow of higher dimensional collapsing dark star and blackhole
Abstract The shadow of a black hole or a collapsing star is of great importance as we can extract important properties of the object and of the surrounding spacetime from the shadow profile. It can also be used to distinguish different types of black holes and ultra compact objects. In this work, we...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2024-01-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-12379-w |
| _version_ | 1797233319399653376 |
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| author | Sagnik Roy Soham Chatterjee Ratna Koley |
| author_facet | Sagnik Roy Soham Chatterjee Ratna Koley |
| author_sort | Sagnik Roy |
| collection | DOAJ |
| description | Abstract The shadow of a black hole or a collapsing star is of great importance as we can extract important properties of the object and of the surrounding spacetime from the shadow profile. It can also be used to distinguish different types of black holes and ultra compact objects. In this work, we have analytically calculated the shadow of a higher dimensional collapsing dark star, described by higher dimensional Vaidya metric, by choosing a slightly generalized version of Misner–Sharp mass function. We have also numerically investigated the properties of the shadows of the black holes and the collapsing stars for a slightly more general mass function. Examining the potential influence of extra spatial dimensions on the shadow, we have explored the possibility of distinguishing higher dimensions from the standard four-dimensional spacetime. |
| first_indexed | 2024-03-08T12:34:18Z |
| format | Article |
| id | doaj.art-4f22224f657440c08be710717c352346 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-24T16:14:17Z |
| publishDate | 2024-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-4f22224f657440c08be710717c3523462024-03-31T11:32:46ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-01-0184111210.1140/epjc/s10052-023-12379-wShadow of higher dimensional collapsing dark star and blackholeSagnik Roy0Soham Chatterjee1Ratna Koley2Department of Physics, Presidency UniversityDepartment of Physics, Presidency UniversityDepartment of Physics, Presidency UniversityAbstract The shadow of a black hole or a collapsing star is of great importance as we can extract important properties of the object and of the surrounding spacetime from the shadow profile. It can also be used to distinguish different types of black holes and ultra compact objects. In this work, we have analytically calculated the shadow of a higher dimensional collapsing dark star, described by higher dimensional Vaidya metric, by choosing a slightly generalized version of Misner–Sharp mass function. We have also numerically investigated the properties of the shadows of the black holes and the collapsing stars for a slightly more general mass function. Examining the potential influence of extra spatial dimensions on the shadow, we have explored the possibility of distinguishing higher dimensions from the standard four-dimensional spacetime.https://doi.org/10.1140/epjc/s10052-023-12379-w |
| spellingShingle | Sagnik Roy Soham Chatterjee Ratna Koley Shadow of higher dimensional collapsing dark star and blackhole European Physical Journal C: Particles and Fields |
| title | Shadow of higher dimensional collapsing dark star and blackhole |
| title_full | Shadow of higher dimensional collapsing dark star and blackhole |
| title_fullStr | Shadow of higher dimensional collapsing dark star and blackhole |
| title_full_unstemmed | Shadow of higher dimensional collapsing dark star and blackhole |
| title_short | Shadow of higher dimensional collapsing dark star and blackhole |
| title_sort | shadow of higher dimensional collapsing dark star and blackhole |
| url | https://doi.org/10.1140/epjc/s10052-023-12379-w |
| work_keys_str_mv | AT sagnikroy shadowofhigherdimensionalcollapsingdarkstarandblackhole AT sohamchatterjee shadowofhigherdimensionalcollapsingdarkstarandblackhole AT ratnakoley shadowofhigherdimensionalcollapsingdarkstarandblackhole |