2 papers
astro-ph.HE2018
Timing irregularities of PSR~J17051906
Y. L. Liu, J. P. Yuan, J. B. Wang +3
Timing analysis of PSR J17051906 using data from Nanshan 25-m and Parkes 64-m radio telescopes, which span over fourteen years, shows that the pulsar exhibits significant proper…
astro-ph2004
Electron temperatures and densities of planetary nebulae determined from the nebular hydrogen recombination spectrum and temperature and density variations
Y. Zhang, X. -W. Liu, R. Wesson +3
A method is presented to derive electron temperatures and densities of planetary nebulae (PNe) simultaneously, using the observed hydrogen recombination spectrum, which includes co…