NGC 1605 is not a binary cluster
Friedrich Anders, Alfred Castro-Ginard, Juan Casado, Carme Jordi, Lola, Balaguer-N\'u\~nez
TL;DR
This study refutes previous claims that NGC 1605 is a binary cluster based on Gaia data and reports the discovery of a new open cluster, Can Batlló 1, with similar properties.
Contribution
The paper demonstrates that Gaia data do not support the binary cluster scenario for NGC 1605 and reports the discovery of a new open cluster, Can Batlló 1.
Findings
NGC 1605 is not a binary cluster according to Gaia data
A new open cluster, Can Batlló 1, was discovered serendipitously
Can Batlló 1 has a similar age and distance to NGC 1605
Abstract
The open star cluster NGC 1605 has recently been reported to in fact consist of two clusters (one intermediate-aged and one old) that merged via a flyby capture. Here we show that Gaia data do not support this scenario. We also report the serendipitous discovery of a new open cluster, Can Batll\'o 1, with a similar age and distance.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Astrophysics and Star Formation Studies