We provide all 20,069 available spectral measurements of 14,012 EVQs selected in Ren et al. 2022. Repeated observed spectra of a same EVQ will have the same SDSS NAME with different spectral info (PLA
We analyze 1598 serendipitous Chandra X-ray observations of 462 radio-quiet quasars to constrain the frequency of extreme amplitude X-ray variability that is intrinsic to the...
We provide all 20,069 available spectral measurements of 14,012 EVQs selected in Ren et al. 2022. Repeated observed spectra of a same EVQ will have the same SDSS NAME with different spectral info (PLA
VizieR online Data Catalogue associated with article published in journal Monthly Notices of the Royal Astronomical Society with title ' The frequency of extreme X-ray variability for radio-quiet quas
