2014 年 ALMA 长基线战役概述
天体物理仪器与方法
2016-09-30 v2
摘要
阿塔卡马大型毫米/亚毫米阵列（ALMA）的一个主要目标是制作分辨率为几十毫角秒的精确图像，这在亚毫米（submm）波长下需要长达约 15 km 的基线。为了开发和测试这一能力，于 2014 年 9 月至 11 月下旬开展了长基线战役（LBC），最终完成了对选定科学验证（SV）目标的端到端观测、校准和成像。本文概述了该战役及其主要结果，包括对 ALMA 台址长基线上的短期相干特性和系统相位误差的调查、SV 目标和观测的总结，以及长基线科学观测策略的建议。还将 97 和 241 GHz 处的类星体 3C138 的深度 ALMA 图像与 VLA 43 GHz 的结果进行了比较，表明两者在百分之几的水平上一致。作为广泛 LBC 测试计划的结果，长基线高度成功的 SV 成像在约 350 GHz 处实现了低至 19 mas 的角分辨率。现在可以在长达 15 km 的基线上使用 ALMA 进行观测，这为亚毫米天文学开辟了新的参数空间。
引用
@article{arxiv.1504.04877,
title = {An Overview of the 2014 ALMA Long Baseline Campaign},
author = {ALMA Partnership and E. B. Fomalont and C. Vlahakis and S. Corder and A. Remijan and D. Barkats and R. Lucas and T. R. Hunter and C. L. Brogan and Y. Asaki and S. Matsushita and W. R. F. Dent and R. E. Hills and N. Phillips and A. M. S. Richards and P. Cox and R. Amestica and D. Broguiere and W. Cotton and A. S. Hales and R. Hiriart and A. Hirota and J. A. Hodge and C. M. V. Impellizzeri and J. Kern and R. Kneissl and E. Liuzzo and N. Marcelino and R. Marson and A. Mignano and K. Nakanishi and B. Nikolic and J. E. Perez and L. M. Pérez and I. Toledo and R. Aladro and B. Butler and J. Cortes and P. Cortes and V. Dhawan and J. Di Francesco and D. Espada and F. Galarza and D. Garcia-Appadoo and L. Guzman-Ramirez and E. M. Humphreys and T. Jung and S. Kameno and R. A. Laing and S. Leon and J. Mangum and G. Marconi and H. Nagai and L. -A. Nyman and M. Radiszcz and J. A. Rodón and T. Sawada and S. Takahashi and R. P. J. Tilanus and T. van Kempen and B. Vila Vilaro and L. C. Watson and T. Wiklind and F. Gueth and K. Tatematsu and A. Wootten and A. Castro-Carrizo and E. Chapillon and G. Dumas and I. de Gregorio-Monsalvo and H. Francke and J. Gallardo and J. Garcia and S. Gonzalez and J. E. Hibbard and T. Hill and T. Kaminski and A. Karim and M. Krips and Y. Kurono and C. Lopez and S. Martin and L. Maud and F. Morales and V. Pietu and K. Plarre and G. Schieven and L. Testi and L. Videla and E. Villard and N. Whyborn and M. A. Zwaan and F. Alves and P. Andreani and A. Avison and M. Barta and F. Bedosti and G. J. Bendo and F. Bertoldi and M. Bethermin and A. Biggs and J. Boissier and J. Brand and S. Burkutean and V. Casasola and J. Conway and L. Cortese and B. Dabrowski and T. A. Davis and M. Diaz Trigo and F. Fontani and R. Franco-Hernandez and G. Fuller and R. Galvan Madrid and A. Giannetti and A. Ginsburg and S. F. Graves and E. Hatziminaoglou and M. Hogerheijde and P. Jachym and I. Jimenez Serra and M. Karlicky and P. Klaasen and M. Kraus and D. Kunneriath and C. Lagos and S. Longmore and S. Leurini and M. Maercker and B. Magnelli and I. Marti Vidal and M. Massardi and A. Maury and S. Muehle and S. Muller and T. Muxlow and E. O'Gorman and R. Paladino and D. Petry and J. Pineda and S. Randall and J. S. Richer and A. Rossetti and A. Rushton and K. Rygl and A. Sanchez Monge and R. Schaaf and P. Schilke and T. Stanke and M. Schmalzl and F. Stoehr and S. Urban and E. van Kampen and W. Vlemmings and K. Wang and W. Wild and Y. Yang and S. Iguchi and T. Hasegawa and M. Saito and J. Inatani and N. Mizuno and S. Asayama and G. Kosugi and K. -I. Morita and K. Chiba and S. Kawashima and S. K. Okumura and N. Ohashi and R. Ogasawara and S. Sakamoto and T. Noguchi and Y. -D. Huang and S. -Y. Liu and F. Kemper and P. M. Koch and M. -T. Chen and Y. Chikada and M. Hiramatsu and D. Iono and M. Shimojo and S. Komugi and J. Kim and A. -R. Lyo and E. Muller and C. Herrera and R. E. Miura and J. Ueda and J. Chibueze and Y. -N. Su and A. Trejo-Cruz and K. -S. Wang and H. Kiuchi and N. Ukita and M. Sugimoto and R. Kawabe and M. Hayashi and S. Miyama and P. T. P. Ho and N. Kaifu and M. Ishiguro and A. J. Beasley and S. Bhatnagar and J. A. Braatz and D. G. Brisbin and N. Brunetti and C. Carilli and J. H. Crossley and L. D'Addario and J. L. Donovan Meyer and D. T. Emerson and A. S. Evans and P. Fisher and K. Golap and D. M. Griffith and A. E. Hale and D. Halstead and E. J. Hardy and M. C. Hatz and M. Holdaway and R. Indebetouw and P. R. Jewell and A. A. Kepley and D. -C. Kim and M. D. Lacy and A. K. Leroy and H. S. Liszt and C. J. Lonsdale and B. Matthews and M. McKinnon and B. S. Mason and G. Moellenbrock and A. Moullet and S. T. Myers and J. Ott and A. B. Peck and J. Pisano and S. J. E. Radford and W. T. Randolph and U. Rao Venkata and M. G. Rawlings and R. Rosen and S. L. Schnee and K. S. Scott and N. K. Sharp and K. Sheth and R. S. Simon and T. Tsutsumi and S. J. Wood},
journal= {arXiv preprint arXiv:1504.04877},
year = {2016}
}
备注
11 pages, 7 figures, 2 tables; accepted for publication in the Astrophysical Journal Letters; this version with small changes to affiliations