Gemini 行星成像仪对 HD 32297 碎屑盘的观测
太阳与恒星天体物理
2020-05-13 v1 地球与行星天体物理
摘要
我们展示了利用 Gemini 行星成像仪(GPI)获得的 HD 32297 侧视碎屑盘的新 H 波段散射光图像。该盘在总强度和偏振强度下均可探测到，投影角距离低至 0.15"（即 20 au）。另一方面，大尺度后掠晕未被探测到，这很可能是其相对于母体带明显偏蓝的颜色所致。我们分析了盘脊的曲率，并估算母体带的半径约为 100 au，小于以往的散射光研究结果，但与系统的热发射图一致。我们采用三种不同的通量保持后处理方法抑制残余星光，并评估沿盘脊的表面亮度和偏振轮廓。与以往对该系统的研究不同，我们的高保真图像揭示该盘高度对称，且不存在形态与表面亮度扰动。我们发现该系统的尘埃散射特性与在其他碎屑盘中观测到的一致，HR 4796 除外。最后，我们未发现系统中存在行星质量天体的直接证据。
引用
@article{arxiv.2004.06027,
title = {The Gemini Planet Imager view of the HD 32297 debris disk},
author = {Gaspard Duchene and Malena Rice and Justin Hom and Joseph Zalesky and Thomas M. Esposito and Maxwell A. Millar-Blanchaer and Bin Ren and Paul Kalas and Michael Fitzgerald and Pauline Arriaga and Sebastian Bruzzone and Joanna Bulger and Christine H. Chen and Eugene Chiang and Tara Cotten and Ian Czekala and Robert J. De Rosa and Ruobing Dong and Zachary H. Draper and Katherine B. Follette and James R. Graham and Li-Wei Hung and Ronald Lopez and Bruce Macintosh and Brenda C. Matthews and Johan Mazoyer and Stan Metchev and Jennifer Patience and Marshall D. Perrin and Julien Rameau and Inseok Song and Kevin Stahl and Jason Wang and Schuyler Wolff and Ben Zuckerman and S. Mark Ammons and Vanessa P. Bailey and Travis Barman and Jeffrey Chilcote and Rene Doyon and Benjamin L. Gerard and Stephen J. Goodsell and Alexandra Z. Greenbaum and Pascale Hibon and Patrick Ingraham and Quinn Konopacky and Jerome Maire and Franck Marchis and Mark S. Marley and Christian Marois and Eric L. Nielsen and Rebecca Oppenheimer and David Palmer and Lisa Poyneer and Laurent Pueyo and Abhijith Rajan and Fredrik T. Rantrakiro and Jean-Baptiste Ruffio and Dmitry Savransky and Adam C. Schneider and Anand Sivaramakrishnan and Remi Soummer and Sandrine Thomas},
journal= {arXiv preprint arXiv:2004.06027},
year = {2020}
}
备注
Accepted for publication in the Astronomical Journal