Dark matter in the Central Region of NGC 3256

We investigated the central mass distribution of the luminous infrared galaxy NGC 3256 at a distance of 35 Mpc by using CO(1-0) observations of the Atacama Large Millimeter and sub-millimeter Array (ALMA) and near-IR data of the Two Micron Sky Survey (2MASS). We found that there is a huge amount of...

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Main Authors:	Israa Abdulqasim Mohammed Ali, Hwang, Chorng-Yuan, Zamri Zainal Abidin, Plunkett, Adele Laurie
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2018
Online Access:	http://journalarticle.ukm.my/12129/ http://journalarticle.ukm.my/12129/ http://journalarticle.ukm.my/12129/1/20%20Israa%20Abdulqasim%20Mohammed%20Ali.pdf

id	ukm-12129
recordtype	eprints
spelling	ukm-121292018-09-28T22:35:21Z http://journalarticle.ukm.my/12129/ Dark matter in the Central Region of NGC 3256 Israa Abdulqasim Mohammed Ali, Hwang, Chorng-Yuan Zamri Zainal Abidin, Plunkett, Adele Laurie We investigated the central mass distribution of the luminous infrared galaxy NGC 3256 at a distance of 35 Mpc by using CO(1-0) observations of the Atacama Large Millimeter and sub-millimeter Array (ALMA) and near-IR data of the Two Micron Sky Survey (2MASS). We found that there is a huge amount of invisible dynamical mass (4.48 × 1010 ) in the central region of the galaxy. The invisible mass is likely caused by some dark matter, which might have a cuspy dark matter profile. We note that this dark matter is difficult to explain with the conventional Modified Newtonian Dynamics (MOND) model, which is only applicable at a low acceleration regime, whereas the acceleration at the central region of the galaxy is relatively strong. Therefore, this discovery might pose a challenge to the conventional MOND models. Penerbit Universiti Kebangsaan Malaysia 2018-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12129/1/20%20Israa%20Abdulqasim%20Mohammed%20Ali.pdf Israa Abdulqasim Mohammed Ali, and Hwang, Chorng-Yuan and Zamri Zainal Abidin, and Plunkett, Adele Laurie (2018) Dark matter in the Central Region of NGC 3256. Sains Malaysiana, 47 (6). pp. 1241-1249. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid47bil6_2018/KandunganJilid47Bil6_2018.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	We investigated the central mass distribution of the luminous infrared galaxy NGC 3256 at a distance of 35 Mpc by using CO(1-0) observations of the Atacama Large Millimeter and sub-millimeter Array (ALMA) and near-IR data of the Two Micron Sky Survey (2MASS). We found that there is a huge amount of invisible dynamical mass (4.48 × 1010 ) in the central region of the galaxy. The invisible mass is likely caused by some dark matter, which might have a cuspy dark matter profile. We note that this dark matter is difficult to explain with the conventional Modified Newtonian Dynamics (MOND) model, which is only applicable at a low acceleration regime, whereas the acceleration at the central region of the galaxy is relatively strong. Therefore, this discovery might pose a challenge to the conventional MOND models.
format	Article
author	Israa Abdulqasim Mohammed Ali, Hwang, Chorng-Yuan Zamri Zainal Abidin, Plunkett, Adele Laurie
spellingShingle	Israa Abdulqasim Mohammed Ali, Hwang, Chorng-Yuan Zamri Zainal Abidin, Plunkett, Adele Laurie Dark matter in the Central Region of NGC 3256
author_facet	Israa Abdulqasim Mohammed Ali, Hwang, Chorng-Yuan Zamri Zainal Abidin, Plunkett, Adele Laurie
author_sort	Israa Abdulqasim Mohammed Ali,
title	Dark matter in the Central Region of NGC 3256
title_short	Dark matter in the Central Region of NGC 3256
title_full	Dark matter in the Central Region of NGC 3256
title_fullStr	Dark matter in the Central Region of NGC 3256
title_full_unstemmed	Dark matter in the Central Region of NGC 3256
title_sort	dark matter in the central region of ngc 3256
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2018
url	http://journalarticle.ukm.my/12129/ http://journalarticle.ukm.my/12129/ http://journalarticle.ukm.my/12129/1/20%20Israa%20Abdulqasim%20Mohammed%20Ali.pdf
first_indexed	2023-09-18T20:01:55Z
last_indexed	2023-09-18T20:01:55Z
_version_	1777406905613811712

Dark matter in the Central Region of NGC 3256

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