Stellar Streams Reveal the Mass Loss of Globular Clusters
Globular cluster (GC) streams, debris of stars tidally stripped from their progenitor GCs, have densities that correlate positively with the GC mass-loss rate. In this work, we employ a novel particle spray algorithm that can accurately reproduce the morphology of streams of various orbital types, e...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal Letters |
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| Online Access: | https://doi.org/10.3847/2041-8213/adaf93 |
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| author | Yingtian Chen Hui Li Oleg Y. Gnedin |
| author_facet | Yingtian Chen Hui Li Oleg Y. Gnedin |
| author_sort | Yingtian Chen |
| collection | DOAJ |
| description | Globular cluster (GC) streams, debris of stars tidally stripped from their progenitor GCs, have densities that correlate positively with the GC mass-loss rate. In this work, we employ a novel particle spray algorithm that can accurately reproduce the morphology of streams of various orbital types, enabling us to uncover the relationship between the GC mass-loss history and stream density profiles. Using recent discoveries of GC streams from Gaia Data Release 3, we present, for the first time, a catalog of directly observed mass-loss rates for 12 Galactic GCs, ranging from 0.5 to 200 M _⊙ Myr ^−1 . By fitting power-law relations between the mass-loss rate and key GC properties, we identify positive correlations with GC mass and orbital frequency, consistent with the predictions from N -body simulations. |
| format | Article |
| id | doaj-art-856b0ece97e640509de614db0202f2b6 |
| institution | Kabale University |
| issn | 2041-8205 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Letters |
| spelling | doaj-art-856b0ece97e640509de614db0202f2b62025-02-11T17:14:57ZengIOP PublishingThe Astrophysical Journal Letters2041-82052025-01-019802L1810.3847/2041-8213/adaf93Stellar Streams Reveal the Mass Loss of Globular ClustersYingtian Chen0https://orcid.org/0000-0002-5970-2563Hui Li1https://orcid.org/0000-0002-1253-2763Oleg Y. Gnedin2https://orcid.org/0000-0001-9852-9954Department of Astronomy, University of Michigan , Ann Arbor, MI 48109, USA ; ybchen@umich.eduDepartment of Astronomy, Tsinghua Univeristy , Beijing 100084, People’s Republic of China ; hliastro@tsinghua.edu.cnDepartment of Astronomy, University of Michigan , Ann Arbor, MI 48109, USA ; ybchen@umich.eduGlobular cluster (GC) streams, debris of stars tidally stripped from their progenitor GCs, have densities that correlate positively with the GC mass-loss rate. In this work, we employ a novel particle spray algorithm that can accurately reproduce the morphology of streams of various orbital types, enabling us to uncover the relationship between the GC mass-loss history and stream density profiles. Using recent discoveries of GC streams from Gaia Data Release 3, we present, for the first time, a catalog of directly observed mass-loss rates for 12 Galactic GCs, ranging from 0.5 to 200 M _⊙ Myr ^−1 . By fitting power-law relations between the mass-loss rate and key GC properties, we identify positive correlations with GC mass and orbital frequency, consistent with the predictions from N -body simulations.https://doi.org/10.3847/2041-8213/adaf93Stellar streamsGlobular star clustersStellar dynamicsGalaxy dynamics |
| spellingShingle | Yingtian Chen Hui Li Oleg Y. Gnedin Stellar Streams Reveal the Mass Loss of Globular Clusters The Astrophysical Journal Letters Stellar streams Globular star clusters Stellar dynamics Galaxy dynamics |
| title | Stellar Streams Reveal the Mass Loss of Globular Clusters |
| title_full | Stellar Streams Reveal the Mass Loss of Globular Clusters |
| title_fullStr | Stellar Streams Reveal the Mass Loss of Globular Clusters |
| title_full_unstemmed | Stellar Streams Reveal the Mass Loss of Globular Clusters |
| title_short | Stellar Streams Reveal the Mass Loss of Globular Clusters |
| title_sort | stellar streams reveal the mass loss of globular clusters |
| topic | Stellar streams Globular star clusters Stellar dynamics Galaxy dynamics |
| url | https://doi.org/10.3847/2041-8213/adaf93 |
| work_keys_str_mv | AT yingtianchen stellarstreamsrevealthemasslossofglobularclusters AT huili stellarstreamsrevealthemasslossofglobularclusters AT olegygnedin stellarstreamsrevealthemasslossofglobularclusters |