Evolution of the outflow traced by water masers in the evolved star IRAS 18043 - 2116
Paper in proceeding, 2022
We present the spectral and spatial evolution of H2O masers associated with IRAS 18043-2116, a well-known water fountain hosting a high-velocity collimated jet, which has been found in the observations with the 45 m telescope of Nobeyama Radio Observatory and the Australia Telescope Compact Array. We found new highest velocity components of the H2O masers, with which the resulting velocity spread of ≃ 540 km s-1 breaks the speed record of fast jets/outflows in this type of sources.
stars: individuals (IRAS 18043-2116)
masers
stars: AGB and post-AGB
Author
L. Uscanga
Universidad de Guanajuato
H. Imai
Kagoshima University
J. F. Gomez
Spanish National Research Council (CSIC)
Daniel Tafoya
Chalmers, Space, Earth and Environment, Onsala Space Observatory
G. Orosz
Joint Institute for Very Long Baseline Interferometry European Research Infrastructure Consortium (JIVE)
T. P. McCarthy
University of Tasmania
Yuhki Hamae
Kagoshima University
Kei Amada
Kagoshima University
Proceedings of the International Astronomical Union
1743-9213 (ISSN) 1743-9221 (eISSN)
Vol. 18 338-342Subject Categories (SSIF 2011)
Astronomy, Astrophysics and Cosmology
Oceanography, Hydrology, Water Resources
DOI
10.1017/S1743921323002156