Results 141 to 150 of about 203 (158)
Some of the next articles are maybe not open access.
1999
Maser phenomena in the universe are very general actions often occurring in molecular gases under the condition of population inversion. The emission mechanisms of astronomical masers, including mega masers, do not have any direct relations to the relativity or black hole physics.
openaire +1 more source
Maser phenomena in the universe are very general actions often occurring in molecular gases under the condition of population inversion. The emission mechanisms of astronomical masers, including mega masers, do not have any direct relations to the relativity or black hole physics.
openaire +1 more source
Origin of water masers in W49N
1993It is proposed that H2O masers in star-forming regions occur early in the expansion of thin shells swept up by high-velocity winds from young massive stars. In W49N, confinement of the shell by a density distribution with an axial cavity can explain both the velocity field and the shape of the mass distribution.
Mordecai-Mark Mac Low, Moshe Elitzur
openaire +1 more source
Water Maser and Envelope of Infrared Stars
Publications of the Astronomical Society of Japan, 1977Abstract The populations of levels including the ν2 vibrationally excited state for water molecules in the circumstellar envelope of maser/infrared sources are calculated. The maser power obtained for the 616–523 transition of water is of the order of 1043 photons s–1, which is consistent with observations.
openaire +1 more source
Search for Bright Masers in the Water Vapor Line towards the Dust Clumps of the Galaxy
Astronomy Reports, 2022Andrey Sobolev +2 more
exaly
A search for water masers associated with class II methanol masers – I. Longitude range 6°–20°
Monthly Notices of the Royal Astronomical Society, 2014J L Caswell, Breen S L, Caswell J L
exaly
A search for water masers associated with class II methanol masers – II. Longitude range 341° to 6°
Monthly Notices of the Royal Astronomical Society, 2016J L Caswell, Breen S L, Caswell J L
exaly
A search for 22-GHz water masers within the giant molecular cloud associated with RCW 106
Monthly Notices of the Royal Astronomical Society, 2007Maria Cunningham +2 more
exaly
Discovery of four water masers in the Small Magellanic Cloud
Monthly Notices of the Royal Astronomical Society, 2013Shinji Horiuchi, Breen S L, Horiuchi S
exaly
Constraining the properties of 1.2-mm dust clumps that contain luminous water masers
Monthly Notices of the Royal Astronomical Society, 2011Breen S L, Ellingsen S P, S P Ellingsen
exaly
An unbiased pilot survey for Galactic water masers
Monthly Notices of the Royal Astronomical Society, 2010J L Caswell, Breen S L, Caswell J L
exaly