ABSORPTION spectra of rare-earth ions have been increasingly studied over recent years because of their presentation of band and line absorption in the visible region. Much work has been carried out ...
Neutron stars have the strongest magnetic fields in the universe, and the only way to measure their surface magnetic field directly is to observe the cyclotron absorption lines in their X-ray energy ...
Publications of the Astronomical Society of the Pacific, Vol. 116, No. 816 (February 2004), pp. 138-147 (10 pages) ABSTRACT We investigate the accuracy of the parametric recovery of the line‐of‐sight ...
The molecular gas outflow from the quasar includes hydroxyl (OH) (top). Due to the motion of the molecular gas toward the observer, the OH peak in the absorption spectrum (bottom, dashed blue line) ...
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