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arXiv 1407.3756astro-ph.IM
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下一代BLASTPol实验

The next-generation BLASTPol experiment

Bradley Dober, Peter A. R. Ade, Peter Ashton, Francesco E. Angilè, James A. Beall, Dan Becker, Kristi J. Bradford, George Che, Hsiao-Mei Cho, Mark J. Devlin, La… 展开作者

Bradley Dober, Peter A. R. Ade, Peter Ashton, Francesco E. Angilè, James A. Beall, Dan Becker, Kristi J. Bradford, George Che, Hsiao-Mei Cho, Mark J. Devlin, Laura M. Fissel, Yasuo Fukui, Nicholas Galitzki, Jiansong Gao, Christopher E. Groppi, Seth Hillbrand, Gene C. Hilton, Johannes Hubmayr, Kent D. Irwin, Jeffrey Klein, Jeff Van Lanen, Dale Li, Zhi-Yun Li, Nathan P. Lourie, Hamdi Mani, Peter G. Martin, Philip Mauskopf, Fumitaka Nakamura, Giles Novak, David P. Pappas, Enzo Pascale, Fabio P. Santos, Giorgio Savini, Douglas Scott, Sara Stanchfield, Joel N. Ullom, Matthew Underhill, Michael R. Vissers, Derek Ward-Thompson

摘要:

星载大孔径亚毫米波偏振测量望远镜(BLASTPol)是一个亚轨道测绘实验,旨在研究磁场在恒星形成中的作用。BLASTPol在2010年和2012年从南极洲的麦克默多站进行了两次科学飞行。这些飞行在几个分子云目标中产生了数千个250、350和500微米的偏振矢量。我们提出的设计,规格,并朝着下一代BLASTPol实验(BLAST-TNG)的进展。BLAST-TNG将飞行一个直径大40%的主镜,偏振敏感探测器的数量几乎是原来的8倍,从而使测绘速度提高16倍。BLAST-TNG的空间分辨率为22角秒,视场是BLASTPol的4倍,它将在普朗克低分辨率全天空地图和ALMA超高分辨率窄视场之间架起一座桥梁。新的接收器具有更大的低温体积,允许28天的保持时间。BLAST-TNG采用三个阵列的微波动态电感检测器(MKID),在250,350和500微米处具有30%的分数带宽。在本文中,我们将介绍新的BLAST-TNG仪器和科学目标。

英文摘要:

The Balloon-borne Large Aperture Submillimeter Telescope for Polarimetry (BLASTPol) is a suborbital mapping experiment designed to study the role magnetic fields play in star formation. BLASTPol has had two science flights from McMurdo Station, Antarctica in 2010 and 2012. These flights have produced thousands of polarization vectors at 250, 350 and 500 microns in several molecular cloud targets. We present the design, specifications, and progress towards the next-generation BLASTPol experiment (BLAST-TNG). BLAST-TNG will fly a 40% larger diameter primary mirror, with almost 8 times the number of polarization-sensitive detectors resulting in a factor of 16 increase in mapping speed. With a spatial resolution of 22 arcseconds and four times the field of view of BLASTPol, BLAST-TNG will bridge the angular scales between Planck's low resolution all-sky maps and ALMA's ultra-high resolution narrow fields. The new receiver has a larger cryogenics volume, allowing for a 28 day hold time. BLAST-TNG employs three arrays of Microwave Kinetic Inductance Detectors (MKIDs) with 30% fractional bandwidth at 250, 350 and 500 microns. In this paper, we will present the new BLAST-TNG instrument and science objectives.

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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