Radioastron probing the fine structure of the flaring H2O maser in star-forming region G25.65+1.05

Fuente: arXiv
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Main Authors: Shakhvorostova, N. N., Alakoz, A. V., Val'tts, I. E., Litovchenko, I. D.
Format: Preprint
Published: 2025
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author Shakhvorostova, N. N.
Alakoz, A. V.
Val'tts, I. E.
Litovchenko, I. D.
author_facet Shakhvorostova, N. N.
Alakoz, A. V.
Val'tts, I. E.
Litovchenko, I. D.
contents The paper describes a Space-VLBI observation of the 22 GHz H2O masers in the massive star-forming region G25.65+1.05, using the 10-m space antenna of Radioastron together with the ground-based VLBA array. Two observing epochs at the pre-flare and post-flare state of the maser source are presented. Leveraging the exceptional angular resolution provided by space-ground baselines along with the broad UV coverage from VLBA baselines, we gained a detailed perspective on the area associated with the maser flare events.
format Preprint
id arxiv_https___arxiv_org_abs_2506_01053
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Radioastron probing the fine structure of the flaring H2O maser in star-forming region G25.65+1.05
Shakhvorostova, N. N.
Alakoz, A. V.
Val'tts, I. E.
Litovchenko, I. D.
Astrophysics of Galaxies
Instrumentation and Methods for Astrophysics
The paper describes a Space-VLBI observation of the 22 GHz H2O masers in the massive star-forming region G25.65+1.05, using the 10-m space antenna of Radioastron together with the ground-based VLBA array. Two observing epochs at the pre-flare and post-flare state of the maser source are presented. Leveraging the exceptional angular resolution provided by space-ground baselines along with the broad UV coverage from VLBA baselines, we gained a detailed perspective on the area associated with the maser flare events.
title Radioastron probing the fine structure of the flaring H2O maser in star-forming region G25.65+1.05
topic Astrophysics of Galaxies
Instrumentation and Methods for Astrophysics
url https://arxiv.org/abs/2506.01053