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Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies

A new model of rotation curves in spiral galaxies is derived and applied to several spiral galaxies. This model is based on a new theory called the ‘time of events’ theory, which was published elsewhere. The theory led to derive a multiscale model that applies to the problem of rotation curves in th...

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Main Authors: Azeez, Jazeel H., Fadhil, Sadeem Abbas, Zamri Zainal Abidin,
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2024
Online Access:http://journalarticle.ukm.my/24655/1/SS%2019.pdf
http://journalarticle.ukm.my/24655/
https://www.ukm.my/jsm/english_journals/vol53num11_2024/contentsVol53num11_2024.html
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spelling my-ukm.journal.246552025-01-06T06:50:27Z http://journalarticle.ukm.my/24655/ Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies Azeez, Jazeel H. Fadhil, Sadeem Abbas Zamri Zainal Abidin, A new model of rotation curves in spiral galaxies is derived and applied to several spiral galaxies. This model is based on a new theory called the ‘time of events’ theory, which was published elsewhere. The theory led to derive a multiscale model that applies to the problem of rotation curves in the galaxies as a non-adiabatic system. The equations of the derived multiscale model will be generalized in the current work to apply to the gases inside the galaxy to reach a general semi-empirical model that relates rotational velocity with the galaxy radius. The derived equation showed an excellent agreement with experimental results for five galaxies. The findings showed that the bulge plays a limited role for the galaxies with large extensions like IC 2574 and NGC 3198, where the dark matter in the halo region controls and determines the shape of the diagram of the rotation curves in these galaxies. Furthermore, in three bared galaxies NGC 1068, NGC 1097, and NGC 6503, the bulge has the most major role in controlling the rotation dynamics in these galaxies. Penerbit Universiti Kebangsaan Malaysia 2024 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/24655/1/SS%2019.pdf Azeez, Jazeel H. and Fadhil, Sadeem Abbas and Zamri Zainal Abidin, (2024) Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies. Sains Malaysiana, 53 (11). pp. 3771-3778. ISSN 0126-6039 https://www.ukm.my/jsm/english_journals/vol53num11_2024/contentsVol53num11_2024.html
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description A new model of rotation curves in spiral galaxies is derived and applied to several spiral galaxies. This model is based on a new theory called the ‘time of events’ theory, which was published elsewhere. The theory led to derive a multiscale model that applies to the problem of rotation curves in the galaxies as a non-adiabatic system. The equations of the derived multiscale model will be generalized in the current work to apply to the gases inside the galaxy to reach a general semi-empirical model that relates rotational velocity with the galaxy radius. The derived equation showed an excellent agreement with experimental results for five galaxies. The findings showed that the bulge plays a limited role for the galaxies with large extensions like IC 2574 and NGC 3198, where the dark matter in the halo region controls and determines the shape of the diagram of the rotation curves in these galaxies. Furthermore, in three bared galaxies NGC 1068, NGC 1097, and NGC 6503, the bulge has the most major role in controlling the rotation dynamics in these galaxies.
format Article
author Azeez, Jazeel H.
Fadhil, Sadeem Abbas
Zamri Zainal Abidin,
spellingShingle Azeez, Jazeel H.
Fadhil, Sadeem Abbas
Zamri Zainal Abidin,
Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies
author_facet Azeez, Jazeel H.
Fadhil, Sadeem Abbas
Zamri Zainal Abidin,
author_sort Azeez, Jazeel H.
title Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies
title_short Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies
title_full Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies
title_fullStr Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies
title_full_unstemmed Derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies
title_sort derivation of a rotation curve model based on time of events theory and its application on samples of several spiral galaxies
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2024
url http://journalarticle.ukm.my/24655/1/SS%2019.pdf
http://journalarticle.ukm.my/24655/
https://www.ukm.my/jsm/english_journals/vol53num11_2024/contentsVol53num11_2024.html
_version_ 1821002975646056448
score 13.244413

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