Results 11 to 20 of about 794 (193)
Water Masers as an Early Tracer of Star Formation [PDF]
Abstract We present a study of the correlation between 22 GHz water maser emission and far-infrared/submillimeter (IR/sub-mm) sources. The generalized linear model (GLM) is used to predict H2O maser detection in a particular source with defined physical parameters.
Dmitry A. Ladeyschikov +8 more
openaire +4 more sources
Water masers accompanying OH and methanol masers in star formation regions [PDF]
51 pages, 7 ...
S. L. Breen +3 more
core +4 more sources
VLA observations of water masers towards 6.7 GHz methanol maser sources [PDF]
accepted by Astronomy & ...
Bartkiewicz, A. +5 more
openaire +3 more sources
Time variations of stellar water masers [PDF]
The 22-GHz H2O spectra of the stars RS Vir, RT Vir, R Aql, W Hya, U Her, S Cr B, Rx Boo, R Crt and VY CMa have been observed at intervals during the period 1974 September–1977 May. Optical and infrared measurements have also been made. New components have been observed in the H2O spectra of most of the stars, and the flux density of W Hya reached 2000 ...
Graham G. Cox, E. A. Parker
openaire +2 more sources
Water maser emission in IC 342 [PDF]
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
Accelerations of Water Masers in NGC 4258 [PDF]
40 pages, latex, uses aaspp4 style file, 10 figures.
Bragg, Ann E. +3 more
openaire +4 more sources
WATER MASERS IN THE ANDROMEDA GALAXY. I. A SURVEY FOR WATER MASERS, AMMONIA, AND HYDROGEN RECOMBINATION LINES [PDF]
ABSTRACT We report the results of a Green Bank Telescope survey for water masers, ammonia (1, 1) and (2, 2), and the H66α recombination line toward 506 luminous compact 24 μm emitting regions in the Andromeda Galaxy (M31). We include the 206 sources observed in the Darling water maser survey for completeness.
Jeremy Darling +3 more
openaire +2 more sources
WATER MASERS IN THE ANDROMEDA GALAXY. II. WHERE DO MASERS ARISE? [PDF]
ABSTRACT We present a comparative multiwavelength analysis of water-maser-emitting regions and non-maser-emitting luminous 24 μm star-forming regions in the Andromeda Galaxy (M31) to identify the sites most likely to produce luminous water masers useful for astrometry and proper motion studies.
Nikta Amiri, Jeremy Darling
openaire +2 more sources
Online Database of Multiwavelength Water Masers in Galactic Star-Forming Regions [PDF]
In this paper, we present an online multiwavelength database of water masers in star-forming regions of the Galaxy. The collected data represent 1/495% of all observations of water masers in star-forming regions published since 1989. Nineteen transitions
Bayandina, O. S. +3 more
core +1 more source
VLBI observations of H2O and CH3OH masers in two high-mass YSOs [PDF]
We have conducted phase-reference VLBI observations of H2O and CH3OH masers toward two high-mass star forming regions, Sh 2-255 IR and AFGL 5142. In Sh 2-255 infrared water masers are aligned along a direction close to the orientation of a large scale H2
MOSCADELLI, Luca +4 more
core +1 more source

