普朗克早期结果：首次全天巡天揭示的银河系冷核族群
星系天体物理
2016-08-14 v1
摘要
我们展示了普朗克冷核天体目录(C3PO)第一版在空间分布、温度、距离、质量和形态方面的统计性质。我们还描述了早期冷核目录(ECC，随早期发布致密源目录ERCSC一起发布)的统计特性，该目录是完整目录中915个最可靠探测的子集。我们使用CoCoCoDeT算法提取了10783个冷源。利用IRAS 100 μm波段和三个最高频率普朗克波段的通量，推导了温度和尘埃发射谱指数β值。温度范围从7K到17K，峰值在13K左右。数据不支持β在整个温度范围内为常数的假设。β范围从1.4到2.8，平均值约为2.1，存在几种可能的解释，包括β(T)以及测量中折叠了多个T成分的影响。对于三分之一的源获得了距离。大多数探测位于太阳邻域2 kpc以内，但少数距离大于4 kpc。尽管存在混淆，这些核从银道面深处分布到高银纬(>30°)。相关的质量估计范围从1到10^5太阳质量。利用其物理性质，这些冷源被证明是冷团块，定义为介于云和核之间的中间冷子结构。这些冷团块并非孤立存在，而是大多组织成与分子云相关的纤维状结构。普朗克冷核天体目录(C3PO)是第一个无偏的全天冷天体目录。它为这些潜在的前恒星团块的性质提供了前所未有的统计视角，并为其根据内在性质和环境的分类提供了独特可能性。
引用
@article{arxiv.1101.2035,
title = {Planck Early Results: The Galactic Cold Core Population revealed by the first all-sky survey},
author = {Planck Collaboration and P. A. R. Ade and N. Aghanim and M. Arnaud and M. Ashdown and J. Aumont and C. Baccigalupi and A. Balbi and A. J. Banday and R. B. Barreiro and J. G. Bartlett and E. Battaner and K. Benabed and A. Benoît and J. -P. Bernard and M. Bersanelli and R. Bhatia and J. J. Bock and A. Bonaldi and J. R. Bond and J. Borrill and F. R. Bouchet and F. Boulanger and M. Bucher and C. Burigana and P. Cabella and C. M. Cantalupo and J. -F. Cardoso and A. Catalano and L. Cayón and A. Challinor and A. Chamballu and R. -R. Chary and L. -Y Chiang and P. R. Christensen and D. L. Clements and S. Colombi and F. Couchot and A. Coulais and B. P. Crill and F. Cuttaia and L. Danese and R. D. Davies and R. J. Davis and P. de Bernardis and G. de Gasperis and A. de Rosa and G. de Zotti and J. Delabrouille and J. -M. Delouis and F. -X. Désert and C. Dickinson and K. Dobashi and S. Donzelli and O. Doré and U. Dörl and M. Douspis and X. Dupac and G. Efstathiou and T. A. Enßlin and E. Falgarone and F. Finelli and O. Forni and M. Frailis and E. Franceschi and S. Galeotta and K. Ganga and M. Giard and G. Giardino and Y. Giraud-Héraud and J. González-Nuevo and K. M. Górski and S. Gratton and A. Gregorio and A. Gruppuso and F. K. Hansen and D. Harrison and G. Helou and S. Henrot-Versillé and D. Herranz and S. R. Hildebrandt and E. Hivon and M. Hobson and W. A. Holmes and W. Hovest and R. J. Hoyland and K. M. Huffenberger and A. H. Jaffe and G. Joncas and W. C. Jones and M. Juvela and E. Keihänen and R. Keskitalo and T. S. Kisner and R. Kneissl and L. Knox and H. Kurki-Suonio and G. Lagache and J. -M. Lamarre and A. Lasenby and R. J. Laureijs and C. R. Lawrence and S. Leach and R. Leonardi and C. Leroy and M. Linden-Vørnle and M. López-Caniego and P. M. Lubin and J. F. Macías-Pérez and C. J. MacTavish and B. Maffei and N. Mandolesi and R. Mann and M. Maris and D. J. Marshall and P. Martin and E. Martínez-González and G. Marton and S. Masi and S. Matarrese and F. Matthai and P. Mazzotta and P. McGehee and A. Melchiorri and L. Mendes and A. Mennella and S. Mitra and M. -A. Miville-Deschênes and A. Moneti and L. Montier and G. Morgante and D. Mortlock and D. Munshi and A. Murphy and P. Naselsky and F. Nati and P. Natoli and C. B. Netterfield and H. U. Nørgaard-Nielsen and F. Noviello and D. Novikov and I. Novikov and S. Osborne and F. Pajot and R. Paladini and F. Pasian and G. Patanchon and T. J. Pearson and V. -M. Pelkonen and O. Perdereau and L. Perotto and F. Perrotta and F. Piacentini and M. Piat and S. Plaszczynski and E. Pointecouteau and G. Polenta and N. Ponthieu and T. Poutanen and G. Prézeau and S. Prunet and J. -L. Puget and W. T. Reach and R. Rebolo and M. Reinecke and C. Renault and S. Ricciardi and T. Riller and I. Ristorcelli and G. Rocha and C. Rosset and M. Rowan-Robinson and J. A. Rubiño-Martín and B. Rusholme and M. Sandri and D. Santos and G. Savini and D. Scott and M. D. Seiffert and G. F. Smoot and J. -L. Starck and F. Stivoli and V. Stolyarov and R. Sudiwala and J. -F. Sygnet and J. A. Tauber and L. Terenzi and L. Toffolatti and M. Tomasi and J. -P. Torre and V. Toth and M. Tristram and J. Tuovinen and G. Umana and L. Valenziano and P. Vielva and F. Villa and N. Vittorio and L. A. Wade and B. D. Wandelt and N. Ysard and D. Yvon and A. Zacchei and S. Zahorecz and A. Zonca},
journal= {arXiv preprint arXiv:1101.2035},
year = {2016}
}
备注
This paper is part of package of Planck early papers, labelled in their title by "Planck Early results:..." Corresponding Author: L. Montier ([email protected])