The Evaporating Massive Embedded Stellar Cluster IRS 13 Close
to Sgr A*. II. Kinematic Structure

J 2024

The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic Structure

PEISSKER, Florian, Michal ZAJAČEK, Matúš LABAJ, Lauritz THOMKINS, Andreas ELBE et. al.

Basic information

Original name

The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic Structure

Authors

PEISSKER, Florian, Michal ZAJAČEK (703 Slovakia, belonging to the institution), Matúš LABAJ (703 Slovakia, belonging to the institution), Lauritz THOMKINS, Andreas ELBE, Andreas ECKART, Lucas LABADIE, Vladimír KARAS, Nadeen B. SABHA, Lukas STEINIGER and Maria MELAMED

Edition

Astrophysical Journal, Chicago, IOP Publishing Ltd, 2024, 0004-637X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL URL

Impact factor

Impact factor: 4.900 in 2022

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.3847/1538-4357/ad4098

UT WoS

001271236300001

Keywords in English

Supermassive black holes; Galactic center; Young stellar objects; Young massive clusters; Intermediate-mass black holes

Abstract

V originále

The existence of two distinct and apparently unrelated populations of dusty stellar objects in the Nuclear Stellar Cluster of the Milky Way, namely IRS 13 and the S-cluster, are potentially prone to a general process describing the star formation history in the Galactic center (GC). The former cluster is thought to be entangled in the clockwise and counterclockwise disks, a large-scale stellar distribution revealed by the analysis of stars at different distances from Sgr A*, the supermassive black hole in the GC. Recently, this large-scale distribution was reported to exhibit a multidisk structure with at least four components. Motivated by this finding, we revisit the anisotropic IRS 13 cluster and find strong evidence for a disk-like structure. An examination of about 50 individual stellar orbits reveals a new structure that does not follow any trend known in the literature. Furthermore, we investigate the possibility of an inspiral cluster undergoing star formation processes, as proposed by several authors. Using a simplified N-body simulation to reproduce our observational results, we conclude that, under certain conditions, a massive cluster can migrate from the Circum Nuclear Disk toward the inner parsec. Based on this classification, we revisit the large-scale NACO Very Large Telescope (VLT) observations of IRS 13 and find evidence for a separation of the cluster into a gravitationally stable core remnant and a dissipating part. With the velocity-resolved H30α line and the broadband spectral energy distribution of IRS 13 E3, we provide tentative support for the existence of an intermediate-mass black hole of ∼3 × 104M⊙ surrounded by a hot gaseous stream.

Links

GF23-04053L, research and development project

Name: Role mraků při využití zpoždění kontinua v aktivních galaxiích k měření rychlosti rozpínání vesmíru

Investor: Czech Science Foundation, Partner Agency (Poland)

GX21-13491X, research and development project

Name: Zkoumání žhavého vesmíru a porozumění kosmické zpětné vazbě (Acronym: EHU)

Investor: Czech Science Foundation

Citovat

PEISSKER, Florian, Michal ZAJAČEK, Matúš LABAJ, Lauritz THOMKINS, Andreas ELBE, Andreas ECKART, Lucas LABADIE, Vladimír KARAS, Nadeen B. SABHA, Lukas STEINIGER and Maria MELAMED. The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic Structure. Astrophysical Journal. Chicago: IOP Publishing Ltd, 2024, vol. 970, No 1, p. 1-34. ISSN 0004-637X. Available from: https://dx.doi.org/10.3847/1538-4357/ad4098.

@article{2420817,
   author = {Peissker, Florian and Zajaček, Michal and Labaj, Matúš and Thomkins, Lauritz and Elbe, Andreas and Eckart, Andreas and Labadie, Lucas and Karas, Vladimír and Sabha, Nadeen B. and Steiniger, Lukas and Melamed, Maria},
   article_location = {Chicago},
   article_number = {1},
   doi = {http://dx.doi.org/10.3847/1538-4357/ad4098},
   keywords = {Supermassive black holes; Galactic center; Young stellar objects; Young massive clusters; Intermediate-mass black holes},
   language = {eng},
   issn = {0004-637X},
   journal = {Astrophysical Journal},
   title = {The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic Structure},
   url = {https://ui.adsabs.harvard.edu/abs/2024ApJ...970...74P/abstract},
   volume = {970},
   year = {2024}
}

TY  - JOUR
ID  - 2420817
AU  - Peissker, Florian - Zajaček, Michal - Labaj, Matúš - Thomkins, Lauritz - Elbe, Andreas - Eckart, Andreas - Labadie, Lucas - Karas, Vladimír - Sabha, Nadeen B. - Steiniger, Lukas - Melamed, Maria
PY  - 2024
TI  - The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic Structure
JF  - Astrophysical Journal
VL  - 970
IS  - 1
SP  - 1-34
EP  - 1-34
PB  - IOP Publishing Ltd
SN  - 0004637X
KW  - Supermassive black holes
KW  - Galactic center
KW  - Young stellar objects
KW  - Young massive clusters
KW  - Intermediate-mass black holes
UR  - https://ui.adsabs.harvard.edu/abs/2024ApJ...970...74P/abstract
N2  - The existence of two distinct and apparently unrelated populations of dusty stellar objects in the Nuclear Stellar Cluster of the Milky Way, namely IRS 13 and the S-cluster, are potentially prone to a general process describing the star formation history in the Galactic center (GC). The former cluster is thought to be entangled in the clockwise and counterclockwise disks, a large-scale stellar distribution revealed by the analysis of stars at different distances from Sgr A*, the supermassive black hole in the GC. Recently, this large-scale distribution was reported to exhibit a multidisk structure with at least four components. Motivated by this finding, we revisit the anisotropic IRS 13 cluster and find strong evidence for a disk-like structure. An examination of about 50 individual stellar orbits reveals a new structure that does not follow any trend known in the literature. Furthermore, we investigate the possibility of an inspiral cluster undergoing star formation processes, as proposed by several authors. Using a simplified N-body simulation to reproduce our observational results, we conclude that, under certain conditions, a massive cluster can migrate from the Circum Nuclear Disk toward the inner parsec. Based on this classification, we revisit the large-scale NACO Very Large Telescope (VLT) observations of IRS 13 and find evidence for a separation of the cluster into a gravitationally stable core remnant and a dissipating part. With the velocity-resolved H30α line and the broadband spectral energy distribution of IRS 13 E3, we provide tentative support for the existence of an intermediate-mass black hole of ∼3 × 104M⊙ surrounded by a hot gaseous stream.
ER  -

PEISSKER, Florian, Michal ZAJAČEK, Matúš LABAJ, Lauritz THOMKINS, Andreas ELBE, Andreas ECKART, Lucas LABADIE, Vladimír KARAS, Nadeen B. SABHA, Lukas STEINIGER and Maria MELAMED. The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic Structure. \textit{Astrophysical Journal}. Chicago: IOP Publishing Ltd, 2024, vol.~970, No~1, p.~1-34. ISSN~0004-637X. Available from: https://dx.doi.org/10.3847/1538-4357/ad4098.

Detailed Information on Publication Record