On the Theory of Formation of Lopsided Spiral Galaxies
In this paper, the phenomenon of lopsidedness associated with the observed effect of displacement of the core of a spiral galaxy from its geometric center is explained by the gravitational instability of individual perturbation modes. The main ones are perturbation modes with radial wave numbers and...
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| Veröffentlicht in: | Astrophysical bulletin 2024-06, Vol.79 (2), p.221-234 |
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| creator | Mirtadjieva, K. T. Nuritdinov, S. N. Omonov, A. U. |
| description | In this paper, the phenomenon of lopsidedness associated with the observed effect of displacement of the core of a spiral galaxy from its geometric center is explained by the gravitational instability of individual perturbation modes. The main ones are perturbation modes with radial wave numbers
and
, where the azimuthal index is
. Unlike other authors, we studied the lopside instability phenomenon against the background of a non-stationary model of a nonlinearly pulsating disk. The mechanisms and criteria for the origin of the phenomenon of displacement of the core in spiral galaxies are revealed. In addition, to determine the dependence of this effect on the geometry of the gravitating system, we also carried out an analysis of lopsided perturbation modes in the framework of a spherical nonstationary model. |
| doi_str_mv | 10.1134/S1990341324600017 |
| format | Article |
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and
, where the azimuthal index is
. Unlike other authors, we studied the lopside instability phenomenon against the background of a non-stationary model of a nonlinearly pulsating disk. The mechanisms and criteria for the origin of the phenomenon of displacement of the core in spiral galaxies are revealed. In addition, to determine the dependence of this effect on the geometry of the gravitating system, we also carried out an analysis of lopsided perturbation modes in the framework of a spherical nonstationary model.</description><identifier>ISSN: 1990-3413</identifier><identifier>EISSN: 1990-3421</identifier><identifier>DOI: 10.1134/S1990341324600017</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Astronomy ; Astrophysics and Cosmology ; Gravitation theory ; Gravitational instability ; Perturbation ; Physics ; Physics and Astronomy ; Spiral galaxies ; Stability criteria</subject><ispartof>Astrophysical bulletin, 2024-06, Vol.79 (2), p.221-234</ispartof><rights>Pleiades Publishing, Ltd. 2024</rights><rights>Pleiades Publishing, Ltd. 2024.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c198t-14143417c736c4e22cab0c6cff6938862c742ad26f8339b0c1549d7d780584ca3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1990341324600017$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1990341324600017$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Mirtadjieva, K. T.</creatorcontrib><creatorcontrib>Nuritdinov, S. N.</creatorcontrib><creatorcontrib>Omonov, A. U.</creatorcontrib><title>On the Theory of Formation of Lopsided Spiral Galaxies</title><title>Astrophysical bulletin</title><addtitle>Astrophys. Bull</addtitle><description>In this paper, the phenomenon of lopsidedness associated with the observed effect of displacement of the core of a spiral galaxy from its geometric center is explained by the gravitational instability of individual perturbation modes. The main ones are perturbation modes with radial wave numbers
and
, where the azimuthal index is
. Unlike other authors, we studied the lopside instability phenomenon against the background of a non-stationary model of a nonlinearly pulsating disk. The mechanisms and criteria for the origin of the phenomenon of displacement of the core in spiral galaxies are revealed. In addition, to determine the dependence of this effect on the geometry of the gravitating system, we also carried out an analysis of lopsided perturbation modes in the framework of a spherical nonstationary model.</description><subject>Astronomy</subject><subject>Astrophysics and Cosmology</subject><subject>Gravitation theory</subject><subject>Gravitational instability</subject><subject>Perturbation</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Spiral galaxies</subject><subject>Stability criteria</subject><issn>1990-3413</issn><issn>1990-3421</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp1kF9LwzAUxYMoOKcfwLeCz9Xc3CxNHmW4KQz2sPkcYpq6jq6pSQfu25tS0Qfx6f47v3PgEnIL9B4A-cMGlKLIARkXlFIozshkWOXIGZz_9ICX5CrGPaUCUOGEiHWb9TuXbXfOh1Pmq2zhw8H0tW-HYeW7WJeuzDZdHUyTLU1jPmsXr8lFZZrobr7rlLwunrbz53y1Xr7MH1e5BSX7HDjwFFrYAoXljjFr3qgVtqqEQikFswVnpmSikogqnWDGVVmUhaQzya3BKbkbfbvgP44u9nrvj6FNkRqpFFIljiYVjCobfIzBVboL9cGEkwaqh_foP-9JDBuZmLTtuwu_zv9DXxsLY9A</recordid><startdate>20240601</startdate><enddate>20240601</enddate><creator>Mirtadjieva, K. T.</creator><creator>Nuritdinov, S. N.</creator><creator>Omonov, A. U.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20240601</creationdate><title>On the Theory of Formation of Lopsided Spiral Galaxies</title><author>Mirtadjieva, K. T. ; Nuritdinov, S. N. ; Omonov, A. U.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c198t-14143417c736c4e22cab0c6cff6938862c742ad26f8339b0c1549d7d780584ca3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Astronomy</topic><topic>Astrophysics and Cosmology</topic><topic>Gravitation theory</topic><topic>Gravitational instability</topic><topic>Perturbation</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Spiral galaxies</topic><topic>Stability criteria</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mirtadjieva, K. T.</creatorcontrib><creatorcontrib>Nuritdinov, S. N.</creatorcontrib><creatorcontrib>Omonov, A. U.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Astrophysical bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mirtadjieva, K. T.</au><au>Nuritdinov, S. N.</au><au>Omonov, A. U.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the Theory of Formation of Lopsided Spiral Galaxies</atitle><jtitle>Astrophysical bulletin</jtitle><stitle>Astrophys. Bull</stitle><date>2024-06-01</date><risdate>2024</risdate><volume>79</volume><issue>2</issue><spage>221</spage><epage>234</epage><pages>221-234</pages><issn>1990-3413</issn><eissn>1990-3421</eissn><abstract>In this paper, the phenomenon of lopsidedness associated with the observed effect of displacement of the core of a spiral galaxy from its geometric center is explained by the gravitational instability of individual perturbation modes. The main ones are perturbation modes with radial wave numbers
and
, where the azimuthal index is
. Unlike other authors, we studied the lopside instability phenomenon against the background of a non-stationary model of a nonlinearly pulsating disk. The mechanisms and criteria for the origin of the phenomenon of displacement of the core in spiral galaxies are revealed. In addition, to determine the dependence of this effect on the geometry of the gravitating system, we also carried out an analysis of lopsided perturbation modes in the framework of a spherical nonstationary model.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1990341324600017</doi><tpages>14</tpages></addata></record> |
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| ispartof | Astrophysical bulletin, 2024-06, Vol.79 (2), p.221-234 |
| issn | 1990-3413 1990-3421 |
| language | eng |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Astronomy Astrophysics and Cosmology Gravitation theory Gravitational instability Perturbation Physics Physics and Astronomy Spiral galaxies Stability criteria |
| title | On the Theory of Formation of Lopsided Spiral Galaxies |
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