Feedback-Driven Star Formation and YSO Distribution around H II Regions Sh2-140 and Sh2-145
Abstract
OB2 associations are ideal sites for studying various star-formation processes. Here, we study the region containing the bright-rimmed cloud (BRC) 44 and the dark cloud LDN 1204, which lies between two H II regions, Sh2-140 and Sh2-145. The region is a part of a larger Cepheus OB2 association. Our previous study on BRC 44 suggests a scenario of triggered star formation through radiative feedback. Using the infrared data from the Spitzer Space Telescope and the Wide-field Infrared Survey Explorer, we find a spatial correlation between the locations of massive stars and the distribution of young stellar objects, indicating a possible sequential pattern of star formation across the region. These results indicate the role of massive-star feedback in shaping the star-formation history of the complex
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BibTeX
@misc{rishi2026feedbackdriven,
title = {{Feedback-Driven Star Formation and YSO Distribution around H II Regions Sh2-140 and Sh2-145}},
author = {C Rishi and Neelam Panwar and Ajay Kumar Singh},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.07092},
eprint = {2611.07092},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.07092},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Feedback-Driven Star Formation and YSO Distribution around H II Regions Sh2-140 and Sh2-145
AU - C Rishi
AU - Neelam Panwar
AU - Ajay Kumar Singh
PY - 2026
DA - 2026/11/04
PB - arXiv
DO - 10.48550/arxiv.2611.07092
UR - https://arxiv.org/abs/2611.07092
AB - OB2 associations are ideal sites for studying various star-formation processes. Here, we study the region containing the bright-rimmed cloud (BRC) 44 and the dark cloud LDN 1204, which lies between two H II regions, Sh2-140 and Sh2-145. The region is a part of a larger Cepheus OB2 association. Our previous study on BRC 44 suggests a scenario of triggered star formation through radiative feedback. Using the infrared data from the Spitzer Space Telescope and the Wide-field Infrared Survey Explorer, we find a spatial correlation between the locations of massive stars and the distribution of young stellar objects, indicating a possible sequential pattern of star formation across the region. These results indicate the role of massive-star feedback in shaping the star-formation history of the complex
ER -