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

0580086 - ASÚ 2024 RIV GB eng J - Článek v odborném periodiku
Peissker, F. - Zajaček, M. - Thomkins, L. - Eckart, A. - Labadie, L. - Karas, Vladimír - Sabha, N. - Steiniger, L. - Melamed, M.
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.
Astrophysical Journal. Roč. 956, č. 2 (2023), č. článku 70. ISSN 0004-637X. E-ISSN 1538-4357
Grant CEP: GA ČR(CZ) GX21-06825X; GA MŠMT LM2023047
Institucionální podpora: RVO:67985815
Klíčová slova: supermassive black holes * galactic center * young stellar objects
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 4.9, rok: 2022
Způsob publikování: Open access

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.
Trvalý link: https://hdl.handle.net/11104/0348860