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High resolution spectroscopy of 13CH3OH around the 10R(20) CO2 laser emission: New FIR laser lines, frequency measurement and assignments
(1997-01-01)
We investigated the IR absorption spectrum of 13CH3OH around the frequency of the 10R(20) CO2 laser line. We found two absorption lines which can be excited by 10R(20) and studied the FIR laser emissions excited by this ...
Detection of rest-frame optical lines from x-shooter spectroscopy of weak emission-line quasars
(The American Astronomical Society, 2015-06-01)
Over the past 15 yr, examples of exotic radio-quiet quasars with intrinsically weak or absent broad emission line
regions (BELRs) have emerged from large-scale spectroscopic sky surveys. Here, we present spectroscopy ...
A HARD AND VARIABLE X-RAY EMISSION FROM THE MASSIVE EMISSION-LINE STAR HD 157832
(IOP PUBLISHING LTD, 2011)
We report the discovery with XMM-Newton of a hard-thermal (T similar to 130 MK) and variable X-ray emission from the Be star HD 157832, a new member of the puzzling class of gamma-Cas-like Be/X-ray systems. Recent optical ...
Cometary X-ray emission: Theoretical cross sections following charge exchange by multiply charged ions of astrophysical interest
(National Research Council Canada-NRC Research Press, 2008-01)
The classical trajectory Monte Carlo (CTMC) method is used to calculate emission cross sections following charge exchange collisions involving highly charged ions of astrophysical interest and typical cometary targets. ...
Corona effect in frequency dependent transmission line models
(2008-12-01)
The inclusion of the corona effect in a frequency dependent transmission line model is proposed in this paper. The transmission line is represented through a cascade of π circuits and the frequency dependence of the ...
Corona effect in frequency dependent transmission line models
(2008-12-01)
The inclusion of the corona effect in a frequency dependent transmission line model is proposed in this paper. The transmission line is represented through a cascade of π circuits and the frequency dependence of the ...