MP Gem: VY Scl-type star, finally

TL;DR

This paper confirms MP Gem as a VY Scl-type cataclysmic variable through analysis of Zwicky Transient Facility data, revealing its faint state and rising phase after 71 years of mystery.

Contribution

First identification of MP Gem as a VY Scl-type star using recent transient survey data, resolving a long-standing mystery.

Findings

Detected deep faint state in 2018

Observed rising phase after faint state

Confirmed VY Scl-type classification

Abstract

MP Gem has long been suspected as a long-period eclipsing binary, which had not been seen in faint state for 71 years since the discovery in 1944. Its nature has been a mystery. Using Public Data Release of Zwicky Transient Facility observations, I finally reached a conclusion that this object is a VY Scl-type cataclysmic variable by the detection of the deep faint state and the rising phase in 2018.