ORION NEBULA CLUSTER (ONC) AND PLANETARY SYSTEMS FROM GAIA DR3 AND JWST DATA

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Abstract

Using Gaia DR3 data, we studied the Orion Nebula Cluster (ONC) in the region of the sky where free planets and stars with planetary systems were discovered using the James Webb Space Telescope (JWST). We selected ONC candidate stars for which the probabilities of belonging to the cluster were estimated. Using Gaia DR3 star parallaxes, we determined the distance of the ONC from the Sun to be 393 ± 13 pc. The analysis allowed us to estimate the number of single and binary stars, the number of stars with planets, and the number of free planets in the selected region of space in the central part of the ONC. Our estimates indicate the possibility of obtaining new results from numerical modeling.

About the authors

S. V. Vereshchagin

Institute of Astronomy, Russian Academy of Sciences

Email: svvs@ya.ru
Moscow, Russia

D. I. Tagaev

Ural Federal University

Ekaterinburg, Russia

T. B. Keskin

Department of Astrophysics and Stellar Astronomy, Physics Faculty, Lomonosov Moscow State University

Moscow, Russia

N. A. Chupina

Institute of Astronomy, Russian Academy of Sciences

Moscow, Russia

E. S. Postnikova

Institute of Astronomy, Russian Academy of Sciences

Moscow, Russia

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