TESS LIGHT CURVES OF CATACLYSMIC VARIABLES. IV. A SYNOPTIC VIEW OF ECLIPSING OLD NOVAE AND NOVALIKE VARIABLES

Based mainly on the months-long 2 minutes time-resolution light curves observed by the Transiting Exoplanet Survey Telescope (TESS) space mission of 48 eclipsing old novae and novalike variables (commonly referred to as NLs) selected from the Ritter & Kolb catalog, a synoptic view of some basic properties of these systems is provided.The supraorbit

Land subsidence has become a serious issue in Cangzhou for a long time.In order to make reasonable use of groundwater resources, it is necessary to establish a warning groundwater level DEEP CLEANSE SHAMPOO under the premise of controlling the development of land subsidence.How to quantitatively determine the critical gorundwater level (CWL) for co