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Where is star formation taking place in the Orion Nebula?

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Star formation in the Orion Nebula is occurring predominantly in the Orion Nebula Cluster (ONC), which is the most massive active star-forming region within a kiloparsec of the Sun . The ONC exhibits an age gradient with distance, indicating a propagation of the star-forming front into the cloud, with younger stars located closer to the center. Additionally, the ONC shows a weak signature of expansion, possibly driven by unstable N-body interactions among stars . The region contains escaping star candidates concentrated at the core, with proper motions aligned along the Orion filament, suggesting ongoing star formation processes . This detailed analysis sheds light on the dynamics and kinematics of star formation within the Orion Nebula Cluster.

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Open access•Journal Article•DOI 3D shape of Orion A with Gaia DR2. An informed view on Star Formation Rates and Efficiencies Josefa Großschedl, João Alves, Stefan Meingast, Birgit Hasenberger - Show less +3 more 19 Dec 2018 4 Citations	Star formation in the Orion Nebula is concentrated in the Orion Nebula Cluster (ONC) region, which produces about ten times more stars compared to the rest of the cloud.
Open access•Journal Article•DOI Stellar Proper Motions in the Orion Nebula Cluster Dongwon Kim, Jessica R. Lu, Quinn Konopacky, Laurie Chu, Elizabeth Toller, Jay Anderson, Christopher A. Theissen, Mark Morris - Show less +7 more 10 Dec 2018-arXiv: Solar and Stellar Astrophysics 9 Citations	Star formation in the Orion Nebula Cluster occurs predominantly at the core, with escaping star candidates concentrated there, indicating ongoing massive star formation in the region.
Open access•Journal Article•DOI Star formation in two irradiated globules around Cygnus OB2 F. Comer'on, Nicola Schneider, Amanda A. Djupvik - Show less +2 more 15 Mar 2022-Astronomy and Astrophysics	Not addressed in the paper.
Open access•Journal Article•DOI A gravitational and dynamical framework of star formation: the Orion nebula Marina Kounkel 23 Sep 2022-Monthly Notices of the Royal Astronomical Society 4 Citations	Star formation in the Orion Nebula is propagating into the cloud, with an age gradient from 385 pc for older stars to 395 pc for younger stars, indicating ongoing formation towards the center.
Open access•Journal Article•DOI Stellar Proper Motions in the Orion Nebula Cluster Dongwon Kim, Jessica R. Lu, Quinn Konopacky, Laurie Chu, Elizabeth Toller, Jay Anderson, Christopher A. Theissen, Mark Morris - Show less +7 more 11 Feb 2019-The Astronomical Journal 25 Citations	Star formation in the Orion Nebula Cluster occurs predominantly at the core, with escaping star candidates concentrated there, indicating ongoing massive star formation in the region.

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