Cataclysmic Variables from large surveys

摘要: The number of cataclysmic variables (CVs) known has grown dramatically in the past decade, largely thanks to large area photometric and transient surveys. I will discuss the advantages and disadvantages of transient discovery and show what we can learn about the CV population from these faint systems. I will discuss the CV discoveries and basic data processing from Gaia Science Alerts, the transient survey based on the Gaia satellite's repeated scans of the sky. This is the only transient survey which provides all-sky coverage at high spatial resolution, and the data are public immediately after discovery.