The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 Cluster
A detailed analysis of the nuclear star cluster not only concedes the existence of the S cluster, with its fast-moving stars and the supermassive black hole Sgr A*. It also reveals an embedded region of gas and dust with an exceptionally high stellar density called IRS 13. The IRS 13 cluster can be...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/acf6b5 |
| _version_ | 1797662772745469952 |
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| author | Florian Peißker Michal Zajaček Lauritz Thomkins Andreas Eckart Lucas Labadie Vladimír Karas Nadeen B. Sabha Lukas Steiniger Maria Melamed |
| author_facet | Florian Peißker Michal Zajaček Lauritz Thomkins Andreas Eckart Lucas Labadie Vladimír Karas Nadeen B. Sabha Lukas Steiniger Maria Melamed |
| author_sort | Florian Peißker |
| collection | DOAJ |
| description | A detailed analysis of the nuclear star cluster not only concedes the existence of the S cluster, with its fast-moving stars and the supermassive black hole Sgr A*. It also reveals an embedded region of gas and dust with an exceptionally high stellar density called IRS 13. The IRS 13 cluster can be divided into the northern and eastern counterparts, called IRS 13N and IRS 13E, respectively. This work will focus on both regions and study their most prominent members using rich infrared and radio/submillimeter data baselines. Applying a multiwavelength analysis enables us to determine a comprehensive photometric footprint of the investigated cluster sample. Using the ray-tracing-based radiative transfer model HYPERION, the spectral energy distribution of the IRS 13 members suggests a stellar nature of the dusty sources. These putative young stellar objects (YSOs) have a comparable spectroscopic identification to the D and G sources in or near the S cluster. Furthermore, we report the existence of a population of dusty sources in IRS 13 that can be mostly identified in the H , K , and L band. We propose that, together with the objects reported in the literature, this population is the outcome of a recent star formation process. Furthermore, we report that these presumably young objects are arranged in a disk structure. Although it cannot be excluded that the intrinsic arrangement of IRS 13 does show a disk structure, we find indications that the investigated cluster sample might be related to the counterclockwise disk. |
| first_indexed | 2024-03-11T19:04:03Z |
| format | Article |
| id | doaj.art-197cefd360c04a8e8668ceaf374fbd8c |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-11T19:04:03Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-197cefd360c04a8e8668ceaf374fbd8c2023-10-10T08:58:56ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0195627010.3847/1538-4357/acf6b5The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 ClusterFlorian Peißker0https://orcid.org/0000-0002-9850-2708Michal Zajaček1https://orcid.org/0000-0001-6450-1187Lauritz Thomkins2Andreas Eckart3https://orcid.org/0000-0001-6049-3132Lucas Labadie4https://orcid.org/0000-0001-5342-5713Vladimír Karas5https://orcid.org/0000-0002-5760-0459Nadeen B. Sabha6https://orcid.org/0000-0001-7134-9005Lukas Steiniger7https://orcid.org/0000-0002-5859-3932Maria Melamed8https://orcid.org/0000-0002-4902-3794I.Physikalisches Institut der Universität zu Köln , Zülpicher Str. 77, D-50937 Köln, Germany ; peissker@ph1.uni-koeln.deDepartment of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University , Kotlářská 2, 611 37 Brno, Czech RepublicI.Physikalisches Institut der Universität zu Köln , Zülpicher Str. 77, D-50937 Köln, Germany ; peissker@ph1.uni-koeln.deI.Physikalisches Institut der Universität zu Köln , Zülpicher Str. 77, D-50937 Köln, Germany ; peissker@ph1.uni-koeln.de; Max-Plank-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, GermanyI.Physikalisches Institut der Universität zu Köln , Zülpicher Str. 77, D-50937 Köln, Germany ; peissker@ph1.uni-koeln.deAstronomical Institute , Czech Academy of Sciences, Boční II 1401, CZ-14100 Prague, Czech RepublicInstitut für Astro- und Teilchenphysik, Universität Innsbruck , Technikerstr. 25, A-6020 Innsbruck, AustriaI.Physikalisches Institut der Universität zu Köln , Zülpicher Str. 77, D-50937 Köln, Germany ; peissker@ph1.uni-koeln.deI.Physikalisches Institut der Universität zu Köln , Zülpicher Str. 77, D-50937 Köln, Germany ; peissker@ph1.uni-koeln.deA detailed analysis of the nuclear star cluster not only concedes the existence of the S cluster, with its fast-moving stars and the supermassive black hole Sgr A*. It also reveals an embedded region of gas and dust with an exceptionally high stellar density called IRS 13. The IRS 13 cluster can be divided into the northern and eastern counterparts, called IRS 13N and IRS 13E, respectively. This work will focus on both regions and study their most prominent members using rich infrared and radio/submillimeter data baselines. Applying a multiwavelength analysis enables us to determine a comprehensive photometric footprint of the investigated cluster sample. Using the ray-tracing-based radiative transfer model HYPERION, the spectral energy distribution of the IRS 13 members suggests a stellar nature of the dusty sources. These putative young stellar objects (YSOs) have a comparable spectroscopic identification to the D and G sources in or near the S cluster. Furthermore, we report the existence of a population of dusty sources in IRS 13 that can be mostly identified in the H , K , and L band. We propose that, together with the objects reported in the literature, this population is the outcome of a recent star formation process. Furthermore, we report that these presumably young objects are arranged in a disk structure. Although it cannot be excluded that the intrinsic arrangement of IRS 13 does show a disk structure, we find indications that the investigated cluster sample might be related to the counterclockwise disk.https://doi.org/10.3847/1538-4357/acf6b5Supermassive black holesGalactic centerYoung stellar objectsYoung massive clustersIntermediate-mass black holes |
| spellingShingle | Florian Peißker Michal Zajaček Lauritz Thomkins Andreas Eckart Lucas Labadie Vladimír Karas Nadeen B. Sabha Lukas Steiniger Maria Melamed The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 Cluster The Astrophysical Journal Supermassive black holes Galactic center Young stellar objects Young massive clusters Intermediate-mass black holes |
| title | The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 Cluster |
| title_full | The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 Cluster |
| title_fullStr | The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 Cluster |
| title_full_unstemmed | The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 Cluster |
| title_short | The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a Rich Population of Dusty Objects in the IRS 13 Cluster |
| title_sort | evaporating massive embedded stellar cluster irs 13 close to sgr a i detection of a rich population of dusty objects in the irs 13 cluster |
| topic | Supermassive black holes Galactic center Young stellar objects Young massive clusters Intermediate-mass black holes |
| url | https://doi.org/10.3847/1538-4357/acf6b5 |
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