Planck 2013 结果. XIII. 银河系 CO 辐射
星系天体物理
2014-10-29 v2 宇宙学与河外天体物理
摘要
CO 的转动跃迁线在分子射电天文学中发挥重要作用，尤其是在恒星形成和银河系结构的研究中。尽管在银道面和一些著名分子云中存在大量数据，但迄今为止尚无高灵敏度的 CO 全天巡天数据。利用 Planck HFI 数据可以构建此类全天巡天，因为 115、230 和 345 GHz 处的三条最低 CO 转动跃迁线分别对 100、217 和 353 GHz 的 HFI 通道信号有显著贡献。我们使用两种不同的成分分离方法从 Planck HFI 数据中提取 CO 图。然后将获得的图相互比较，并与现有的外部 CO 巡天数据进行比较。通过这些质量检查，选择了在信噪比和/或前景残余污染方面表现最好的 CO 图。我们生成了三套速度积分 CO 辐射图：具有低前景污染但信噪比适中的 CO (1-0)、(2-1) 和 (3-2) 转动跃迁 Type 1 图；具有更好信噪比的 (1-0) 和 (2-1) 跃迁 Type 2 图；以及一张 Type 3 图，即具有最佳信噪比的谱线复合图，用于定位最微弱的分子区域。本文对这些图进行了详细描述。结果表明，它们与以往对部分银道面以及银道面外较微弱区域的巡天结果完全兼容。Planck HFI 针对 (1-0)、(2-1) 和 (3-2) 转动跃迁的速度积分 CO 图提供了前所未有的银河系全天 CO 视图。这些图对于监测 Planck CMB 研究中潜在的 CO 污染也具有重要价值。
引用
@article{arxiv.1303.5073,
title = {Planck 2013 results. XIII. Galactic CO emission},
author = {Planck Collaboration and P. A. R. Ade and N. Aghanim and M. I. R. Alves and C. Armitage-Caplan and M. Arnaud and M. Ashdown and F. Atrio-Barandela and J. Aumont and C. Baccigaluppi and A. J. Banday and R. B. Barreiro and J. G. Bartlett and E. Battaner and K. Benabed and A. Benoit and A. Benoit-Levy and J. -P. Bernard and M. Bersanelli and P. Bielewicz and J. Bobin and J. J. Bock and A. Bonaldi and J. R. Bond and J. Borrill and F. R. Bouchet and F. Boulanger and M. Bridges and M. Bucher and C. Burigana and R. C. Butler and J. -F. Cardoso and A. Catalano and A. Chamballu and R. -R. Chary and X. Chen and L. -Y Chiang and H. C. Chiang and P. R. Christensen and S. Church and D. L. Clements and S. Colombi and L. P. L. Colombo and C. Combet and F. Couchot and A. Coulais and B. P. Crill and A. Curto and F. Cuttaia and L. Danese and R. D. Davies and P. de Bernardis and A. de Rosa and G. de Zotti and J. Delabrouille and J. -M. Delouis and J. T. Dempsey and F. -X. Desert and C. Dickinson and J. M. Diego and H. Dole and S. Donzelli and O. Dore and M. Douspis and X. Dupac and G. Efstathiou and T. A. Enblin and H. K. Eriksen and E. Falgarone and F. Finelli and O. Forni and M. Frailis and E. Franceschi and Y. Fukui and S. Galeotta and K. Ganga and M. Giard and Y. Giraud-Heraud and J. Gonzalez-Nuevo and K. M. Gorski and S. Gratton and A. Gregorio and A. Gruppuso and T. Handa and F. K. Hansen and D. Hanson and D. Harrison and S. Henrot-Versille and C. Hernandez-Monteagudo and D. Herranz and S. R. Hildebrandt and P. Hily-Blant and E. Hivon and M. Hobson and W. A. Holmes and A. Hornstrup and W. Hovest and K. M. Huffenberger and G. Hurier and T. R. Jaffe and A. H. Jaffe and J. Jewell and W. C. Jones and M. Juvela and E. Keihanen and R. Keskitalo and T. S. Kisner and J. Knoche and L. Knox and M. Kunz and H. Kurki-Suonio and G. Lagache and A. Lahteenmaki and J. -M. Lamarre and A. Lasenby and R. J. Laureijs and C. R. Lawrence and R. Leonardi and J. Leon-Tavares and J. Lesgourgues and M. Liguori and P. B. Lilje and M. Linden-Vornle and M. Lopez-Caniego and P. M. Lubin and J. F. Macias-Perez and B. Maffei and N. Mandolesi and M. Maris and D. J. Marshall and P. G. Martin and E. Martinez-Gonzalez 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 M. Migliaccio and S. Mitra and M. -A. Miville-Deschenes and A. Moneti and L. Montier and T. J. T. Moore and G. Morgante and J. Morino and D. Mortlock and D. Munshi and T. Nakajima and P. Naselsky and F. Nati and P. Natoli and C. B. Netterfield and H. U. Norgaard-Nielsen and F. Noviello and D. Novikov and I. Novikov and T. Okuda and S. Osborne and C. A. Oxborrow and F. Paci and L. Pagano and F. Pajot and R. Paladini and D. Paoletti and F. Pasian and G. Patanchon and O. Perdereau and L. Perotto and F. Perrotta and F. Piacentini and M. Piat and E. Pierpaoli and D. Pietrobon and S. Plaszczynski and E. Pointecouteau and G. Polenta and N. Ponthieu and L. Popa and T. Poutanen and G. W. Pratt and G. Preezeau and S. Prunet and J. -L. Puget and J. P. Rachen and W. T. Reach and R. Rebolo and M. Reinecke and M. Remazeilles and C. Renault and S. Ricciardi and T. Riller and I. Ristorcelli and G. Rocha and C. Rosset and G. Roudier and M. Rowan-Robinson and J. A. Rubino-Martin and B. Rusholme and M. Sandri and D. Santos and G. Savini and D. Scott and M. D. Seiffert and E. P. S. Shellard and L. D. Spencer and J. -L. Starck and V. Stolyarov and R. Stompor and R. Sudiwala and R. Sunyaev and F. Sureau and D. Sutton and A. -S. Suur-Uski and J. -F. Sygnet and J. A. Tauber and D. Tavagnacco and L. Terenzi and H. S. Thomas and L. Toffolatti and M. Tomasi and K. Torii and M. Tristram and M. Tucci and J. Tuovinen and G. Umana and L. Valenziano and J. Valiviita and B. Van Tent and P. Vielva and F. Villa and N. Vittorio and L. A. Wade and B. D. Wandelt and I. K. Wehus and H. Yamamoto T. Yoda and D. Yvon and A. Zacchei and A. Zonca},
journal= {arXiv preprint arXiv:1303.5073},
year = {2014}
}
备注
24 pages, 17 figures