Testing universal dark-matter caustic rings with galactic rotation curves
Infall of cold dark matter on a galaxy may result in caustic rings where the particle density is enhanced. They may be searched for as features in the galactic rotation curves. Previous studies suggested the evidence for these caustic rings with universal, that is common for different galaxies, para...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2023-04-01
|
Series: | Physics Letters B |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269323001326 |
_version_ | 1797867660336168960 |
---|---|
author | Daniil Davydov Sergey Troitsky |
author_facet | Daniil Davydov Sergey Troitsky |
author_sort | Daniil Davydov |
collection | DOAJ |
description | Infall of cold dark matter on a galaxy may result in caustic rings where the particle density is enhanced. They may be searched for as features in the galactic rotation curves. Previous studies suggested the evidence for these caustic rings with universal, that is common for different galaxies, parameters. Here we test this hypothesis with a large independent set of rotation curves by means of an improved statistical method. No evidence for universal caustic rings is found in the new analysis. |
first_indexed | 2024-04-09T23:44:49Z |
format | Article |
id | doaj.art-5b674893447e4098a0cd3c4ba480c097 |
institution | Directory Open Access Journal |
issn | 0370-2693 |
language | English |
last_indexed | 2024-04-09T23:44:49Z |
publishDate | 2023-04-01 |
publisher | Elsevier |
record_format | Article |
series | Physics Letters B |
spelling | doaj.art-5b674893447e4098a0cd3c4ba480c0972023-03-18T04:40:10ZengElsevierPhysics Letters B0370-26932023-04-01839137798Testing universal dark-matter caustic rings with galactic rotation curvesDaniil Davydov0Sergey Troitsky1Physics Department, M.V. Lomonosov Moscow State University, 1-2 Leninskie Gory, 119991, Moscow, Russia; Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7A, 117312, Moscow, Russia; Corresponding author.Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7A, 117312, Moscow, Russia; Physics Department, M.V. Lomonosov Moscow State University, 1-2 Leninskie Gory, 119991, Moscow, RussiaInfall of cold dark matter on a galaxy may result in caustic rings where the particle density is enhanced. They may be searched for as features in the galactic rotation curves. Previous studies suggested the evidence for these caustic rings with universal, that is common for different galaxies, parameters. Here we test this hypothesis with a large independent set of rotation curves by means of an improved statistical method. No evidence for universal caustic rings is found in the new analysis.http://www.sciencedirect.com/science/article/pii/S0370269323001326Dark matter in galaxiesRotation curvesAxions |
spellingShingle | Daniil Davydov Sergey Troitsky Testing universal dark-matter caustic rings with galactic rotation curves Physics Letters B Dark matter in galaxies Rotation curves Axions |
title | Testing universal dark-matter caustic rings with galactic rotation curves |
title_full | Testing universal dark-matter caustic rings with galactic rotation curves |
title_fullStr | Testing universal dark-matter caustic rings with galactic rotation curves |
title_full_unstemmed | Testing universal dark-matter caustic rings with galactic rotation curves |
title_short | Testing universal dark-matter caustic rings with galactic rotation curves |
title_sort | testing universal dark matter caustic rings with galactic rotation curves |
topic | Dark matter in galaxies Rotation curves Axions |
url | http://www.sciencedirect.com/science/article/pii/S0370269323001326 |
work_keys_str_mv | AT daniildavydov testinguniversaldarkmattercausticringswithgalacticrotationcurves AT sergeytroitsky testinguniversaldarkmattercausticringswithgalacticrotationcurves |