We present the first HI 21 cm spectroscopy detection of J030417.78+002827.4,which is an active galactic nucleus(AGN)with......

To obtain reliable Cu abundances with the APOGEE H-band spectra,it is important to investi-gate the non-local thermodyna......

One-dimensional(1D)model atmospheres are still the most commonly used tool for the determi-nation of stellar chemical co......

Magnetic reconnection is thought to be a key process in most solar eruptions. Thanks to highresolution observations and ......