GRAVITY年轻恒星天体巡天第十四号：研究S CrA N中的磁层吸积-喷流过程
太阳与恒星天体物理
2024-10-09 v1 地球与行星天体物理
星系天体物理
摘要
富含尘埃和气体的原行星盘围绕年轻恒星系统，在恒星和行星形成中扮演关键角色。尽管近年来在探测这些盘的大尺度结构（数十天文单位）方面取得了显著进展，但中心天文单位区域仍需进一步研究。我们旨在通过近红外干涉观测揭示强吸积T Tauri星S CrA N最内区的物理过程。K波段连续谱辐射由一个方位角调制的尘埃环很好地再现。由于恒星本身无法解释该升华前沿的尺度，我们提出磁层吸积是导致该连续谱辐射的重要尘埃加热机制。氢Brγ线的差分分析与结合磁层吸积和盘风的辐射传输模型一致。我们的观测支持Brγ线起源于内盘区域中（变化的）吸积-喷流过程的组合。
引用
@article{arxiv.2408.02374,
title = {The GRAVITY young stellar object survey XIV : Investigating the magnetospheric accretion-ejection processes in S CrA N},
author = {GRAVITY Collaboration and H. Nowacki and K. Perraut and L. Labadie and J. Bouvier and C. Dougados and M. Benisty and J. A. Wojtczak and A. Soulain and E. Alecian and W. Brandner and A. Caratti o Garatti and R. Garcia Lopez and V. Ganci and J. Sánchez-Bermúdez and J. -P. Berger and G. Bourdarot and P. Caselli and Y. Clénet and R. Davies and A. Drescher and A. Eckart and F. Eisenhauer and M. Fabricius and H. Feuchtgruber and N. M. Förster-Schreiber and P. Garcia and E. Gendron and R. Genzel and S. Gillessen and S. Grant and T. Henning and L. Jocou and P. Kervella and N. Kurtovic and S. Lacour and V. Lapeyrère and J. -B. Le Bouquin and D. Lutz and F. Mang and T. Ott and T. Paumard and G. Perrin and S. Rabien and D. Ribeiro and M. Sadun Bordoni and S. Scheithauer and J. Shangguan and T. Shimizu and S. Spezzano and C. Straubmeier and E. Sturm and L. Tacconi and E. van Dishoeck and F. Vincent and F. Widmann},
journal= {arXiv preprint arXiv:2408.02374},
year = {2024}
}