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@article{2297298,
author = {Peissker, Florian and Zajaček, Michal and Sabha, Nadeen B. and Tsuboi, Masato and Moultaka, Jihane and Labadie, Lucas and Eckart, Andreas and Karas, Vladimír and Steiniger, Lukas and Subroweit, Matthias and Suresh, Anjana and Melamed, Maria and Clénet, Yann},
article_number = {2},
doi = {http://dx.doi.org/10.3847/1538-4357/aca977},
keywords = {editorials; notices; miscellaneous; catalogs; survey},
language = {eng},
issn = {0004-637X},
journal = {Astrophysical Journal},
title = {X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A*},
url = {https://doi.org/10.3847/1538-4357/aca977},
volume = {944},
year = {2023}
}
TY - JOUR
ID - 2297298
AU - Peissker, Florian - Zajaček, Michal - Sabha, Nadeen B. - Tsuboi, Masato - Moultaka, Jihane - Labadie, Lucas - Eckart, Andreas - Karas, Vladimír - Steiniger, Lukas - Subroweit, Matthias - Suresh, Anjana - Melamed, Maria - Clénet, Yann
PY - 2023
TI - X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A*
JF - Astrophysical Journal
VL - 944
IS - 2
SP - 1-28
EP - 1-28
PB - IOP Publishing Ltd
SN - 0004637X
KW - editorials
KW - notices
KW - miscellaneous
KW - catalogs
KW - survey
UR - https://doi.org/10.3847/1538-4357/aca977
N2 - To date, the proposed observation of young stellar objects (YSOs) in the Galactic center still raises the question of where and how these objects could have formed due to the violent vicinity of Sgr A*. Here, we report the multiwavelength detection of a highly dynamic YSO close to Sgr A* that might be a member of the IRS 13 cluster. We observe the beforehand known coreless bow-shock source X3 in the near-and mid-infrared (NIR/MIR) with SINFONI (VLT), NACO (VLT), ISAAC (VLT), VISIR (VLT), SHARP (NTT), and NIRCAM2 (KECK). In the radio domain, we use CO continuum and H30 alpha ALMA observations to identify system components at different temperatures and locations concerning the central stellar source. It is suggested that these radio/submillimeter observations in combination with the NIR Br gamma line can be associated with a protoplanetary disk of the YSO, which is consistent with manifold VISIR observations that reveal complex molecules and elements such as PAH, S IV, Ne II, and Ar III in a dense and compact region. Based on the photometric multiwavelength analysis, we infer the mass of 15 (+10)(-5) M-? for the YSO with a related age of a few 10(4) yr. Due to this age estimate and the required relaxation timescales for high-mass stars, this finding is an indication of ongoing star formation in the inner parsec. The proper motion and 3D distance imply a relation between X3 and IRS 13. We argue that IRS 13 may serve as a birthplace for young stars that are ejected due to the evaporation of the cluster.
ER -
PEISSKER, Florian, Michal ZAJAČEK, Nadeen B. SABHA, Masato TSUBOI, Jihane MOULTAKA, Lucas LABADIE, Andreas ECKART, Vladimír KARAS, Lukas STEINIGER, Matthias SUBROWEIT, Anjana SURESH, Maria MELAMED a Yann CLÉNET. X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A*. \textit{Astrophysical Journal}. IOP Publishing Ltd, 2023, roč.~944, č.~2, s.~1-28. ISSN~0004-637X. Dostupné z: https://dx.doi.org/10.3847/1538-4357/aca977.
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