Herschel-SPIRE observations of the Polaris flare: Structure of the diffuse interstellar medium at the sub-parsec scale

M.-A. Miville-Deschênes; P. G. Martin; A. Abergel; J.-P. Bernard; F. Boulanger; G. Lagache; L. D. Anderson; P. André; H. Arab; J.-P. Baluteau; K. Blagrave; S. Bontemps; M. Cohen; M. Compiegne; P. Cox; E. Dartois; G. Davis; R. Emery; T. Fulton; C. Gry; E. Habart; M. Huang; C. Joblin; S. C. Jones; J. Kirk; T. Lim; S. Madden; G. Makiwa; A. Menshchikov; S. Molinari; H. Moseley; F. Motte; D. A. Naylor; K. Okumura; D. Pinheiro Gon?alves; E. Polehampton; J. A. Rodón; D. Russeil; P. Saraceno; N. Schneider; S. Sidher; L. Spencer; B. Swinyard; D. Ward-Thompson; G. J. White; A. Zavagno

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Herschel-SPIRE observations of the Polaris flare: Structure of the diffuse interstellar medium at the sub-parsec scale

机译：北极星耀斑的Herschel-SPIRE观测：亚视差尺度下的弥漫星际介质的结构

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We present a power spectrum analysis of the Herschel-SPIRE observations of the Polaris flare, a high Galactic latitude cirrus cloud midway between the diffuse and molecular phases. The SPIRE images of the Polaris flare reveal for the first time the structure of the diffuse interstellar medium down to 0.01 parsec over a 10 square degrees region. These exceptional observations highlight the highly filamentary and clumpy structure of the interstellar medium even in diffuse regions of the map. The power spectrum analysis shows that the structure of the interstellar medium is well described by a single power law with an exponent of at all scales from 30'' to 8.That the power spectrum slope of the dust emission is constant down to the SPIRE angular resolution is an indication thatthe inertial range of turbulence extends down to the 0.01pc scale.The power spectrum analysis also allows the identification of a Poissonian component at sub-arcminute scales in agreement with predictions of the cosmic infrared background level at SPIRE wavelengths.Finally, the comparison of the SPIRE and IRAS100m data of the Polaris flare clearlyassesses the capability of SPIRE in maping diffuse emission over large areas.Key words: ISM: clouds - ISM: structure - submillimetre: ISM - dust, extinction - turbulence

机译：我们介绍了北极星耀斑的Herschel-SPIRE观测值的功率谱分析，北极星耀斑是介于弥散相和分子相之间的高银河纬卷云。北极星耀斑的SPIRE图像首次揭示了星际弥散介质在10平方度区域内下降至0.01帕秒的结构。这些出色的观察结果突显了星际介质的高度丝状和块状结构，即使在地图的分散区域也是如此。功率谱分析表明，星际介质的结构可以通过单一幂定律很好地描述，其指数在从30''到8的所有范围内变化。粉尘排放的功率谱斜率恒定到SPIRE角分辨率表明湍流的惯性范围降低到0.01pc尺度。功率谱分析还允许在亚弧度尺度下识别泊松分量，这与对SPIRE波长的宇宙红外背景水平的预测相一致。北极星耀斑的SPIRE和IRAS100m数据的比较清楚地评估了SPIRE绘制大面积散射发射的能力。关键词：ISM：云-ISM：结构-亚毫米：ISM-尘埃，消光-湍流

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《Astronomy and astrophysics》 |2010年第19期|共8页
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M.-A. Miville-Deschênes; P. G. Martin; A. Abergel; J.-P. Bernard; F. Boulanger; G. Lagache; L. D. Anderson; P. André; H. Arab; J.-P. Baluteau; K. Blagrave; S. Bontemps; M. Cohen; M. Compiegne; P. Cox; E. Dartois; G. Davis; R. Emery; T. Fulton; C. Gry; E. Habart; M. Huang; C. Joblin; S. C. Jones; J. Kirk; T. Lim; S. Madden; G. Makiwa; A. Menshchikov; S. Molinari; H. Moseley; F. Motte; D. A. Naylor; K. Okumura; D. Pinheiro Gon?alves; E. Polehampton; J. A. Rodón; D. Russeil; P. Saraceno; N. Schneider; S. Sidher; L. Spencer; B. Swinyard; D. Ward-Thompson; G. J. White; A. Zavagno;
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1. Herschel-SPIRE observations of the Polaris flare: Structure of the diffuse interstellar medium at the sub-parsec scale [J] . M.-A. Miville-Deschênes, P. G. Martin, A. Abergel, Astronomy and astrophysics . 2010,第20期

机译：北极星耀斑的Herschel-SPIRE观测：亚视差尺度下的弥漫星际介质的结构
2. Small-scale structure of the interstellar medium toward ρ oph stars: Diffuse band observations [J] . Cordiner M.A., Fossey S.J., Smith A.M., The Astrophysical Journal. Letters . 2013,第Pta2期

机译：星际介质朝向ρoph星的小规模结构：扩散带观测
3. Small-scale-structure of the interstellar medium probed through diffuse hand observations [J] . Martin A. Cordiner, Stephen J. Fossey, Arfon M. Smith, Faraday discussions . 2006,第0期

机译：通过漫射手观测探测到的星际介质的小尺度结构
4. Distribution of Cosmic-Ray Ionization Rates in the Galactic Diffuse Interstellar Medium as Inferred from Observations of H _3~+, OH~+, and H_2O~+ [C] . Nick Indriolo Session of the Sant Cugat Forum on Astrophysics . 2013

机译：从H×3〜+，OH〜+和H_2O〜+的观察中推断出银河系弥漫性间隙培养基中的宇宙射线电离率的分布
5. A Study of the Physics of the Interstellar Medium using the Herschel-SPIRE Instrument [D] . Makiwa, Gibion 2014

机译：用Herschel-SPIRE仪器研究星际介质的物理
6. Detection of Buckminsterfullerene emission in the diffuse interstellar medium [O] . O. Berné, N. L. J. Cox, G. Mulas, -1

机译：星际弥散介质中巴克敏斯特富勒烯发射的检测
7. Herschel-SPIRE observations of the Polaris flare: Structure of the diffuse interstellar medium at the sub-parsec scale [Letter] [O] . Miville-Deschênes, M.-A., Martin, P. G., Abergel, A., 2010

机译：北极星耀斑的Herschel-SPIRE观测结果：弥散的星际介质在近等差距尺度上的结构[字母]

Herschel-SPIRE observations of the Polaris flare: Structure of the diffuse interstellar medium at the sub-parsec scale

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