625 research outputs found
Suppression of secondary electrons from an endplate of a tandem mirror by use of a biased mesh
Development of a Millimeter Wave Transmission Mirror for Axi-Symmetric Heating over a Wide Cross Section
Measurement of Transmission of Electron Heating Wave through the Fundamental Resonance region at the Plug of GAMMA 10
Study of Interaction between Plasma and EM Wave in Prospect of Application of Millimeter & Sub-millimeter Waves
Study of Interaction between Plasma and EM Wave in Prospect of Application of Millimeter & Sub-millimeter Waves
Atomic Carbon and CO Isotope Emission in the Vicinity of DR15
We present observations of the 3P1-3P0 fine structure transition of atomic
carbon [CI], the J=3-2 transition of CO, as well as of the J=1-0 transitions of
13CO and C18O toward DR15, an HII region associated with two mid-infrared dark
clouds (IRDCs). The 13CO and C18O J=1-0 emissions closely follow the dark
patches seen in optical wavelength, showing two self-gravitating molecular
cores with masses of 2000 Msun and 900 Msun, respectively, at the positions of
the catalogued IRDCs.
Our data show a rough spatial correlation between [CI] and 13CO J=1-0. Bright
[CI] emission occurs in relatively cold gas behind the molecular cores, neither
in highly excited gas traced by CO J=3-2 emission nor in HII region/molecular
cloud interface. These results are inconsistent with those predicted by
standard photodissociation region (PDR) models, suggesting an origin for
interstellar atomic carbon unrelated to photodissociation processes.Comment: 11 pages Latex, 6 figures, Accepted for publication in The
Astrophysical Journa
Propagation and Radiation of Cyclotron Waves and Excitation of Fluctuations Due to High Power Plug ECRH
Propagation and Radiation of Cyclotron Waves and Excitation of Fluctuations Due to High Power Plug ECRH
Study of Interaction between Plasma and EM Wave in Prospect of Application of Millimeter & Sub-millimeter Waves ? Linear Analysis of Global Structure of Drift Wave ?
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