The Solar Neighborhood. XXVI. AP Col: The Closest (8.4 pc) Pre-main-sequence Star

Riedel, Adric; Murphy, Simon; Henry, Todd; Melis, C; Jao, Wei-Chun; Subasavage, John

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The Solar Neighborhood. XXVI. AP Col: The Closest (8.4 pc) Pre-main-sequence Star

Date

2011

Authors

Riedel, Adric

Murphy, Simon

Henry, Todd

Melis, C

Jao, Wei-Chun

Subasavage, John

Publisher

University of Chicago Press

Abstract

We present the results of a multi-technique investigation of the M4.5Ve flare star AP Col, which we discover to be the nearest pre-main-sequence star. These include astrometric data from the CTIO 0.9 m, from which we derive a proper motion of 342.0 ± 0.5