Results 1 to 10 of about 184 (139)
Water masers in the Saturnian system [PDF]
Astronomy and Astrophysics, 2009 Context. The presence of water has long been seen as a key condition for life in planetary environments. The Cassini spacecraft discovered water vapour in the Saturnian system by detecting absorption of UV emission from a background star. Investigating other possible manifestations of water is essential, one of which, provided physical conditions are ...
S V Pogrebenko +2 more
exaly +2 more sources
Water masers in the Local Group of galaxies [PDF]
Astronomy and Astrophysics, 2006 Astronomy & Astrophysics, accepted, 9 pages, 9 figures, also available at http://www.mpifr-bonn.mpg.de/staff/abrunthaler/pub ...
Mark Reid +2 more
exaly +6 more sources
The Parallax and 3D Kinematics of Water Masers in the Massive Star-forming Region G034.43+0.24
The Astrophysical Journal, 2023 We report a measurement of the trigonometric parallax of 22 GHz water masers in the massive star-forming region G034.43+0.24 as part of the Bar and Spiral Structure Legacy Survey using the Very Long Baseline Array.
Xiaofeng Mai +14 more
doaj +1 more source
The Astrophysical Journal, 2023 Because of detailed monitoring of the 22.2 GHz water maser, carried out from 2021 October to 2023 May, a very powerful flare phenomenon was detected in the galactic object W51 near the radial velocity of 60 km s ^−1 with the amplitude of 140 kJy.
A. E. Volvach +2 more
doaj +1 more source
The Astrophysical Journal Supplement Series, 2023 We have conducted a systematic line survey, primarily focused on transitions of the methanol and ammonia molecules, and monitoring observations of masers toward the high-mass star-forming region NGC 6334I.
Jiong-Heng Wu +12 more
doaj +1 more source
Water maser emission in IC 342 [PDF]
Astronomy & Astrophysics, 2002 The detection of 22 GHz water vapor emission from IC342 is reported, raising the detection rate among northern galaxies with 100 micron IRAS point source fluxes > 50 Jy to 16%. The maser, associated with a star forming region 10-15 arcsec west of the nucleus, consists of a single 0.5 km/s wide feature and reaches an isotropic luminosity of 0.01 ...
Tarchi A. +3 more
openaire +3 more sources
Simultaneous Time-monitoring Observations of H2O and SiO Masers toward the Supergiant VX Sagittarii
The Astrophysical Journal Supplement Series, 2023 We performed simultaneous monitoring observations of the 22.2 GHz H _2 O and 43.1/42.8/86.2/129.3 GHz SiO masers toward the red supergiant VX Sagittarii using the Korean VLBI Network single-dish telescopes.
Dong-Hwan Yoon +4 more
doaj +1 more source
Accelerations of Water Masers in NGC 4258 [PDF]
The Astrophysical Journal, 2000 40 pages, latex, uses aaspp4 style file, 10 figures.
Bragg, Ann E. +3 more
openaire +4 more sources
183 GHz Water Megamasers in Active Galactic Nuclei: A New Accretion Disk Tracer
The Astrophysical Journal, 2023 We present the results of an Atacama Large Millimeter/submillimeter Array survey to identify 183 GHz H _2 O maser emission from active galactic nuclei (AGNs) already known to host 22 GHz megamaser systems.
Dominic W. Pesce +5 more
doaj +1 more source
Evolution of the Outflow in the Water Fountain Source IRAS 18043–2116
The Astrophysical Journal, 2023 We present the spectral and spatial evolution of H _2 O masers associated with the water fountain source IRAS 18043−2116, found in observations with the Nobeyama 45 m Telescope and the Australia Telescope Compact Array. We have found new highest-velocity
L. Uscanga +7 more
doaj +1 more source