JCMT小酒馆调查：与NGC 1333中的细丝网络相关的磁场

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JCMT小酒馆调查：与NGC 1333中的细丝网络相关的磁场

The JCMT BISTRO Survey: Magnetic Fields Associated with a Network of Filaments in NGC 1333

论文作者

Doi, Yasuo, Hasegawa, Tetsuo, Furuya, Ray S., Coudé, Simon, Hull, Charles L. H., Arzoumanian, Doris, Bastien, Pierre, Chen, Michael Chun-Yuan, di Francesco, James, Friesen, Rachel, Houde, Martin, Inutsuka, Shu-ichiro, Mairs, Steve, Matsumura, Masafumi, Onaka, Takashi, Sadavoy, Sarah, Shimajiri, Yoshito, Tahani, Mehrnoosh, Tomisaka, Kohji, Eswaraiah, Chakali, Koch, Patrick M., Pattle, Kate, Lee, Chang Won, Tamura, Motohide, Berry, David, Ching, Tao-Chung, Hwang, Jihye, Kwon, Woojin, Soam, Archana, Wang, Jia-Wei, Lai, Shih-Ping, Qiu, Keping, Ward-Thompson, Derek, Byun, Do-Young, Chen, Huei-Ru V., Chen, Wen Ping, Chen, Zhiwei, Cho, Jungyeon, Choi, Minho, Choi, Yunhee, Chrysostomou, Antonio, Chung, Eun Jung, Diep, Pham Ngoc, Duan, Hao-Yuan, Fanciullo, Lapo, Fiege, Jason, Franzmann, Erica, Friberg, Per, Fuller, Gary, Gledhill, Tim, Graves, Sarah F., Greaves, Jane S., Griffin, Matt J., Gu, Qilao, Han, Ilseung, Hatchell, Jennifer, Hayashi, Saeko S., Hoang, Thiem, Inoue, Tsuyoshi, Iwasaki, Kazunari, Jeong, Il-Gyo, Johnstone, Doug, Kanamori, Yoshihiro, Kang, Ji-hyun, Kang, Miju, Kang, Sung-Ju, Kataoka, Akimasa, Kawabata, Koji S., Kemper, Francisca, Kim, Gwanjeong, Kim, Jongsoo, Kim, Kee-Tae, Kim, Kyoung Hee, Kim, Mi-Ryang, Kim, Shinyoung, Kirk, Jason M., Kobayashi, Masato I. N., Konyves, Vera, Kusune, Takayoshi, Kwon, Jungmi, Lacaille, Kevin, Law, Chi-Yan, Lee, Chin-Fei, Lee, Hyeseung, Lee, Jeong-Eun, Lee, Sang-Sung, Lee, Yong-Hee, Li, Dalei, Li, Di, Li, Hua-Bai, Liu, Hong-Li, Liu, Junhao, Liu, Sheng-Yuan, Liu, Tie, de Looze, Ilse, Lyo, A-Ran, Matthews, Brenda C., Moriarty-Schieven, Gerald H., Nagata, Tetsuya, Nakamura, Fumitaka, Nakanishi, Hiroyuki, Ohashi, Nagayoshi, Park, Geumsook, Parsons, Harriet, Peretto, Nicolas, Pyo, Tae-Soo, Qian, Lei, Rao, Ramprasad, Rawlings, Mark G., Retter, Brendan, Richer, John, Rigby, Andrew, Saito, Hiro, Savini, Giorgio, Scaife, Anna M. M., Seta, Masumichi, Shinnaga, Hiroko, Tang, Ya-Wen, Tsukamoto, Yusuke, Viti, Serena, Wang, Hongchi, Whitworth, Anthony P., Yen, Hsi-Wei, Yoo, Hyunju, Yuan, Jinghua, Yun, Hyeong-Sik, Zenko, Tetsuya, Zhang, Chuan-Peng, Zhang, Guoyin, Zhang, Yapeng, Zhou, Jianjun, Zhu, Lei, André, Philippe, Dowell, C. Darren, Eyres, Stewart P. S., Falle, Sam, van Loo, Sven, Robitaille, Jean-François

论文摘要

我们介绍了詹姆斯·克莱克·麦克斯韦（James Clerk Maxwell）在恒星形成区域观测（BISTRO）调查的詹姆斯·克莱克·麦克斯韦（James Clerk Maxwell）望远镜B场中，对珀尔克·麦克斯韦（James Clerk Maxwell）望远镜B-fields（BISTRO）调查中的Perseus Molecular Cloud Compeffer的活性恒星形成区域NGC 1333进行了新的观察结果。 Bistro数据以0.02 PC分辨率覆盖了整个NGC 1333复合物（〜1.5 pc x 2 PC），并首次在空间上解析了单个丝状结构的偏振发射。推断的磁场结构整体上是复杂的，每个单个灯丝都以不同的位置角度与局部场方向排列。我们将小酒馆数据与从普朗克和干涉仪得出的低和高分辨率数据相结合，以研究该区域的多尺度磁场结构。磁场的形态急剧低于〜1 pc的比例，并且从细丝的尺度（〜0.1 pc）保持到原始信封的尺度（〜0.005 pc或〜1000 au）。最后，我们构建了简单的模型，其中假设磁场始终垂直于丝的长轴。我们证明，考虑到磁场和细丝相对于天空平面的投影效应，该模型可很好地再现丝轴和磁场角之间的相对方向的观察到的变化。这些投影效应可能解释了在小酒馆数据向细丝网络的分辨率下观察到的磁场结构的明显复杂性。

We present new observations of the active star-formation region NGC 1333 in the Perseus molecular cloud complex from the James Clerk Maxwell Telescope B-Fields In Star-forming Region Observations (BISTRO) survey with the POL-2 instrument. The BISTRO data cover the entire NGC 1333 complex (~1.5 pc x 2 pc) at 0.02 pc resolution and spatially resolve the polarized emission from individual filamentary structures for the first time. The inferred magnetic field structure is complex as a whole, with each individual filament aligned at different position angles relative to the local field orientation. We combine the BISTRO data with low- and high- resolution data derived from Planck and interferometers to study the multiscale magnetic field structure in this region. The magnetic field morphology drastically changes below a scale of ~1 pc and remains continuous from the scales of filaments (~0.1 pc) to that of protostellar envelopes (~0.005 pc or ~1000 au). Finally, we construct simple models in which we assume that the magnetic field is always perpendicular to the long axis of the filaments. We demonstrate that the observed variation of the relative orientation between the filament axes and the magnetic field angles are well reproduced by this model, taking into account the projection effects of the magnetic field and filaments relative to the plane of the sky. These projection effects may explain the apparent complexity of the magnetic field structure observed at the resolution of BISTRO data toward the filament network.

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