The CARMA-NRO Orion Survey
The CARMA-NRO Orion Survey
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DOI：
10.1051/0004-6361/201834049
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发表时间：
2018-03
期刊：
影响因子：
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通讯作者：
Shuo Kong;H. Arce;J. Feddersen;J. Carpenter;F. Nakamura;Y. Shimajiri;A. Isella;V. Ossenkopf-Okada;A. Sargent;Á. Sánchez-Monge;S. Suri;J. Kauffmann;T. Pillai;J. Pineda;J. Koda;J. Bally;D. Lis;P. Padoan;R. Klessen;S. Mairs;A. Goodman;P. Goldsmith;P. McGehee;P. Schilke;P. Teuben;M. Maureira;C. Hara;A. Ginsburg;B. Burkhart;Rowan J. Smith;A. Schmiedeke;J. Pineda;S. Ishii;K. Sasaki;R. Kawabe;Yumiko Urasawa;S. Oyamada;Yoshihiro Tanabe
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文献类型：
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作者：
Shuo Kong;H. Arce;J. Feddersen;J. Carpenter;F. Nakamura;Y. Shimajiri;A. Isella;V. Ossenkopf-Okada;A. Sargent;Á. Sánchez-Monge;S. Suri;J. Kauffmann;T. Pillai;J. Pineda;J. Koda;J. Bally;D. Lis;P. Padoan;R. Klessen;S. Mairs;A. Goodman;P. Goldsmith;P. McGehee;P. Schilke;P. Teuben;M. Maureira;C. Hara;A. Ginsburg;B. Burkhart;Rowan J. Smith;A. Schmiedeke;J. Pineda;S. Ishii;K. Sasaki;R. Kawabe;Yumiko Urasawa;S. Oyamada;Yoshihiro Tanabe
我们提出的第一个结果，从一个新的，高分辨率的12 CO（1-0），13 CO（1-0），和C18 O（1-0）的猎户座云的分子线调查，以下简称为CARMA-NRO猎户座调查。CARMA观测与Nobeyama 45米望远镜的单碟数据相结合，提供了约0.01 pc分辨率的扩展图像，空间尺度的动态范围约为1200。在这里，我们描述了在紫外空间数据组合的实际细节，包括通量尺度匹配，单碟数据转换为vibrium，以及单碟和干涉数据的联合反褶积。Δ方差分析表明，合并两种仪器的数据不会导致伪影。数据立方体的初步分析，包括矩图，平均光谱，通道图，位置-速度图，激发温度，柱密度，和线比图，提供了复杂和有趣的结构，如灯丝，双极流出，壳，气泡，和光侵蚀柱的证据。对星星形成过程的影响是深远的，CARMA-NRO猎户座团队的后续科学研究正在进行中。我们计划使这里描述的所有数据产品都可以普遍访问;有些已经可以在https://dataverse.harvard.edu/dataverse/CARMA-NRO-Orion上获得。
We present the first results from a new, high-resolution 12CO(1–0), 13CO(1–0), and C18O(1–0) molecular-line survey of the Orion A cloud, hereafter referred to as the CARMA-NRO Orion Survey. CARMA observations have been combined with single-dish data from the Nobeyama 45 m telescope to provide extended images at about 0.01 pc resolution, with a dynamic range of approximately 1200 in spatial scale. Here we describe the practical details of the data combination in uv space, including flux scale matching, the conversion of single-dish data to visibilities, and joint deconvolution of single-dish and interferometric data. A Δ-variance analysis indicates that no artifacts are caused by combining data from the two instruments. Initial analysis of the data cubes, including moment maps, average spectra, channel maps, position–velocity diagrams, excitation temperature, column density, and line ratio maps, provides evidence of complex and interesting structures such as filaments, bipolar outflows, shells, bubbles, and photo-eroded pillars. The implications for star formation processes are profound, and follow-up scientific studies by the CARMA-NRO Orion team are now underway. We plan to make all the data products described here generally accessible; some are already available at https://dataverse.harvard.edu/dataverse/CARMA-NRO-Orion.