Observable Properties of Thin Accretion Disk in the <i>γ</i> Spacetime
We study matter accretion in a static, axially symmetric and vacuum geometry describing the exterior gravitational field of a black hole mimicker called the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ&...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/15/10/1858 |
| _version_ | 1797572154183647232 |
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| author | Bobur Turimov Bobomurat Ahmedov |
| author_facet | Bobur Turimov Bobomurat Ahmedov |
| author_sort | Bobur Turimov |
| collection | DOAJ |
| description | We study matter accretion in a static, axially symmetric and vacuum geometry describing the exterior gravitational field of a black hole mimicker called the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> metric. We evaluate the thermal and optical properties of thin accretion disks, including the emission rate, luminosity and shadow, in the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mspace width="4pt"></mspace><mi>g</mi><mi>a</mi><mi>m</mi><mi>m</mi><mi>a</mi></mrow></semantics></math></inline-formula> spacetime. Also, we explore the radial accretion of polytropic matter fields onto the central source and evaluate the thermal and optical properties of the infalling gas, such as temperature and luminosity. The results are discussed in the context of evaluating the possibility that the true nature of astrophysical black hole candidates may not be a black hole but some exotic compact object possessing a non-vanishing mass quadrupole moment. |
| first_indexed | 2024-03-10T20:51:25Z |
| format | Article |
| id | doaj.art-0c1efd1a6e444d73bd0618255d81152d |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-10T20:51:25Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-0c1efd1a6e444d73bd0618255d81152d2023-11-19T18:17:50ZengMDPI AGSymmetry2073-89942023-10-011510185810.3390/sym15101858Observable Properties of Thin Accretion Disk in the <i>γ</i> SpacetimeBobur Turimov0Bobomurat Ahmedov1School of Applied Mathematics, New Uzbekistan University, Mustaqillik Avenue 54, Tashkent 100007, UzbekistanUlugh Beg Astronomical Institute, Astronomy St. 33, Tashkent 100052, UzbekistanWe study matter accretion in a static, axially symmetric and vacuum geometry describing the exterior gravitational field of a black hole mimicker called the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> metric. We evaluate the thermal and optical properties of thin accretion disks, including the emission rate, luminosity and shadow, in the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mspace width="4pt"></mspace><mi>g</mi><mi>a</mi><mi>m</mi><mi>m</mi><mi>a</mi></mrow></semantics></math></inline-formula> spacetime. Also, we explore the radial accretion of polytropic matter fields onto the central source and evaluate the thermal and optical properties of the infalling gas, such as temperature and luminosity. The results are discussed in the context of evaluating the possibility that the true nature of astrophysical black hole candidates may not be a black hole but some exotic compact object possessing a non-vanishing mass quadrupole moment.https://www.mdpi.com/2073-8994/15/10/1858<i>γ</i> spacetimethin accretion diskradially falling matter |
| spellingShingle | Bobur Turimov Bobomurat Ahmedov Observable Properties of Thin Accretion Disk in the <i>γ</i> Spacetime Symmetry <i>γ</i> spacetime thin accretion disk radially falling matter |
| title | Observable Properties of Thin Accretion Disk in the <i>γ</i> Spacetime |
| title_full | Observable Properties of Thin Accretion Disk in the <i>γ</i> Spacetime |
| title_fullStr | Observable Properties of Thin Accretion Disk in the <i>γ</i> Spacetime |
| title_full_unstemmed | Observable Properties of Thin Accretion Disk in the <i>γ</i> Spacetime |
| title_short | Observable Properties of Thin Accretion Disk in the <i>γ</i> Spacetime |
| title_sort | observable properties of thin accretion disk in the i γ i spacetime |
| topic | <i>γ</i> spacetime thin accretion disk radially falling matter |
| url | https://www.mdpi.com/2073-8994/15/10/1858 |
| work_keys_str_mv | AT boburturimov observablepropertiesofthinaccretiondiskintheigispacetime AT bobomuratahmedov observablepropertiesofthinaccretiondiskintheigispacetime |