PHANGS-JWST Treasury 巡天：近邻星系中高角分辨率的恒星形成、反馈与尘埃物理
星系天体物理
2023-02-22 v1
摘要
PHANGS 合作项目一直在为近邻星系中恒星形成与星际介质的多尺度、多相研究构建参考数据集。随着 JWST 的成功发射与调试，我们现在可以获得高分辨率红外成像，以在星团和分子云（~5-50 pc）的尺度上探测最年轻的恒星族和尘埃发射。在 Cycle 1 中，PHANGS 正在对 19 个近邻旋涡星系开展 2-21μm 的 8 波段成像巡天。所有 19 个星系的 CO(2-1) 成图、光学积分视场光谱以及紫外-光学成像已通过 ALMA、VLT/MUSE 和哈勃望远镜的大型计划获得。PHANGS-JWST 能够全面清查恒星形成、精确测量星团质量与年龄、识别最年轻的嵌埋恒星族，并刻画小尘埃颗粒的物理状态。当与约 10,000 个星团的哈勃星表、约 20,000 个 HII 区的 MUSE 光谱成图，以及约 12,000 个 ALMA 所证认的分子云相结合时，便有可能在多样的星系环境中测量恒星形成与反馈最早阶段的时标和效率、建立小尘埃颗粒性质对局部星际介质条件依赖的经验模型，并检验我们对尘埃再处理星光学如何示踪恒星形成活动的理解。在此我们描述 PHANGS-JWST Treasury 巡天，展示科学运行头几个月中获得的非凡成像，并为 PHANGS-JWST 首批系列出版物中的初始结果提供背景。
引用
@article{arxiv.2212.02667,
title = {The PHANGS-JWST Treasury Survey: Star Formation, Feedback, and Dust Physics at High Angular resolution in Nearby GalaxieS},
author = {Janice C. Lee and Karin M. Sandstrom and Adam K. Leroy and David A. Thilker and Eva Schinnerer and Erik Rosolowsky and Kirsten L. Larson and Oleg V. Egorov and Thomas G. Williams and Judy Schmidt and Eric Emsellem and Gagandeep S. Anand and Ashley T. Barnes and Francesco Belfiore and Ivana Beslic and Frank Bigiel and Guillermo A. Blanc and Alberto D. Bolatto and Mederic Boquien and Jakob den Brok and Yixian Cao and Rupali Chandar and Jeremy Chastenet and Melanie Chevance and I-Da Chiang and Enrico Congiu and Daniel A. Dale and Sinan Deger and Cosima Eibensteiner and Christopher M. Faesi and Simon C. O. Glover and Kathryn Grasha and Brent Groves and Hamid Hassani and Kiana F. Henny and Jonathan D. Henshaw and Nils Hoyer and Annie Hughes and Sarah Jeffreson and Marıa J. Jimenez-Donaire and Jaeyeon Kim and Hwihyun Kim and Ralf S. Klessen and Eric W. Koch and Kathryn Kreckel and J. M. Diederik Kruijssen and Jing Li and Daizhong Liu and Laura A. Lopez and Daniel Maschmann and Ness Mayker Chen and Sharon E. Meidt and Eric J. Murphy and Justus Neumann and Nadine Neumayer and Hsi-An Pan and Ismael Pessa and Jerome Pety and Miguel Querejeta and Francesca Pinna and M. Jimena Rodrıguez and Toshiki Saito and Patricia Sanchez-Blazquez and Francesco Santoro and Amy Sardone and Rowan J. Smith and Mattia C. Sormani and Fabian Scheuermann and Sophia K. Stuber and Jessica Sutter and Jiayi Sun and Yu-Hsuan Teng and Robin G. Tress and Antonio Usero and Elizabeth J. Watkins and Bradley C. Whitmore and Alessandro Razza},
journal= {arXiv preprint arXiv:2212.02667},
year = {2023}
}
备注
Re-submitted after addressing minor comments from referee. To be published as part of PHANGS-JWST ApJL Focus Issue