arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.06027astro-ph.SRastro-ph.EP
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双子座行星成像仪拍摄的HD 32297碎片盘

The Gemini Planet Imager view of the HD 32297 debris disk

Gaspard Duchene, Malena Rice, Justin Hom, Joseph Zalesky, Thomas M. Esposito, Maxwell A. Millar-Blanchaer, Bin Ren, Paul Kalas, Michael Fitzgerald, Pauline Arri… 展开作者

Gaspard Duchene, Malena Rice, Justin Hom, Joseph Zalesky, Thomas M. Esposito, Maxwell A. Millar-Blanchaer, Bin Ren, Paul Kalas, Michael Fitzgerald, Pauline Arriaga, Sebastian Bruzzone, Joanna Bulger, Christine H. Chen, Eugene Chiang, Tara Cotten, Ian Czekala, Robert J. De Rosa, Ruobing Dong, Zachary H. Draper, Katherine B. Follette, James R. Graham, Li-Wei Hung, Ronald Lopez, Bruce Macintosh, Brenda C. Matthews, Johan Mazoyer, Stan Metchev, Jennifer Patience, Marshall D. Perrin, Julien Rameau, Inseok Song, Kevin Stahl, Jason Wang, Schuyler Wolff, Ben Zuckerman, S. Mark Ammons, Vanessa P. Bailey, Travis Barman, Jeffrey Chilcote, Rene Doyon, Benjamin L. Gerard, Stephen J. Goodsell, Alexandra Z. Greenbaum, Pascale Hibon, Patrick Ingraham, Quinn Konopacky, Jerome Maire, Franck Marchis, Mark S. Marley, Christian Marois, Eric L. Nielsen, Rebecca Oppenheimer, David Palmer, Lisa Poyneer, Laurent Pueyo, Abhijith Rajan, Fredrik T. Rantrakiro, Jean-Baptiste Ruffio, Dmitry Savransky, Adam C. Schneider, Anand Sivaramakrishnan, Remi Soummer, Sandrine Thomas

摘要:

我们提出了新的$H$波段散射光图像的HD 32297边缘上的碎片磁盘获得的双子座行星成像仪(GPI)。圆盘的总强度和偏振强度被检测到,投影角间距为0.15”或20 au。另一方面,大规模的后掠晕仍未被发现,可能是其相对于母体带显着蓝色的结果。我们分析了盘脊的曲率,并估计母体带的半径为$\approx$ 100 AU,小于过去的散射光研究,但与系统的热发射图一致。我们采用了三种不同的通量保持后处理方法来抑制残留的星光和评估的表面亮度和偏振分布沿光盘脊柱。与过去的系统研究不同,我们的高保真图像显示磁盘是高度对称的,没有形态和表面亮度扰动。我们发现该系统的尘埃散射特性与在其他碎片盘中观察到的一致,HR 4796除外。最后,我们没有发现系统中存在行星质量物体的直接证据。

英文摘要:

We present new $H$-band scattered light images of the HD 32297 edge-on debris disk obtained with the Gemini Planet Imager (GPI). The disk is detected in total and polarized intensity down to a projected angular separation of 0.15", or 20au. On the other hand, the large scale swept-back halo remains undetected, likely a consequence of its markedly blue color relative to the parent body belt. We analyze the curvature of the disk spine and estimate a radius of $\approx$100au for the parent body belt, smaller than past scattered light studies but consistent with thermal emission maps of the system. We employ three different flux-preserving post-processing methods to suppress the residual starlight and evaluate the surface brightness and polarization profile along the disk spine. Unlike past studies of the system, our high fidelity images reveal the disk to be highly symmetric and devoid of morphological and surface brightness perturbations. We find the dust scattering properties of the system to be consistent with those observed in other debris disks, with the exception of HR 4796. Finally, we find no direct evidence for the presence of a planetary-mass object in the system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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