X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00571487" target="_blank" >RIV/67985815:_____/23:00571487 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/23:00134166

Result on the web

<a href="https://hdl.handle.net/11104/0343839" target="_blank" >https://hdl.handle.net/11104/0343839</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/1538-4357/aca977" target="_blank" >10.3847/1538-4357/aca977</a>

Result language

angličtina

Original language name

X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

<a href="/en/project/GX21-13491X" target="_blank" >GX21-13491X: Exploring the Hot Universe and Understanding Cosmic Feedback</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

1538-4357

Volume of the periodical

944

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

28

Pages from-to

231

UT code for WoS article

000941293700001

EID of the result in the Scopus database

2-s2.0-85149484427