OzDES multi-fibre spectroscopy for the Dark Energy Survey: first-year operation and results
Fang Yuan, C. Lidman, T. M. Davis, M. Childress, F. B. Abdalla, M. Banerji, E. Buckley-Geer, A. Carnero Rosell, D. Carollo, F. J. Castander, C. B. D'Andrea, H. … 展开作者
Fang Yuan, C. Lidman, T. M. Davis, M. Childress, F. B. Abdalla, M. Banerji, E. Buckley-Geer, A. Carnero Rosell, D. Carollo, F. J. Castander, C. B. D'Andrea, H. T. Diehl, C. E Cunha, R. J. Foley, J. Frieman, K. Glazebrook, J. Gschwend, S. Hinton, S. Jouvel, R. Kessler, A. G. Kim, A. L. King, K. Kuehn, S. Kuhlmann, G. F. Lewis, H. Lin, P. Martini, R. G. McMahon, J. Mould, R. C. Nichol, R. P. Norris, C. R. O'Neill, F. Ostrovski, A. Papadopoulos, D. Parkinson, S. Reed, A. K. Romer, P. J. Rooney, E. Rozo, E. S. Rykoff, M. Sako, R. Scalzo, B. P. Schmidt, D. Scolnic, N. Seymour, R. Sharp, F. Sobreira, M. Sullivan, R. C. Thomas, D. Tucker, S. A. Uddin, R. H. Wechsler, W. Wester, H. Wilcox, B. Zhang, T. Abbott, S. Allam, A. H. Bauer, A. Benoit-Levy, E. Bertin, D. Brooks, D. L. Burke, M. Carrasco Kind, R. Covarrubias, M. Crocce, L. N. da Costa, D. L. DePoy, S. Desai, P. Doel, T. F. Eifler, A. E. Evrard, A. Fausti Neto, B. Flaugher, P. Fosalba, E. Gaztanaga, D. Gerdes, D. Gruen, R. A. Gruendl, K. Honscheid, D. James, N. Kuropatkin, O. Lahav, T. S. Li, M. A. G. Maia, M. Makler, J. Marshall, C. J. Miller, R. Miquel, R. Ogando, A. A. Plazas, A. Roodman, E. Sanchez, V. Scarpine, M. Schubnell, I. Sevilla-Noarbe, R. C. Smith, M. Soares-Santos, E. Suchyta, M. E. C. Swanson, G. Tarle, J. Thaler, A. R. Walker
OzDES是一项为期五年、共100个夜晚的光谱巡天计划,主要目的是测量约2,500个Ia型超新星宿主星系的红移,红移范围为0.1 < z < 1.2,并推导出约500个活动星系核和类星体的反射映射黑洞质量,红移范围为0.3 < z < 4.5。这个数据宝库形成了暗能量巡天的光谱后续工作的主要部分,我们还针对星系团,射电星系,强透镜和未识别的瞬变,以及测量发光的红色星系和发射线星系,以帮助校准光度红移。在这里,我们提出了一个概述OzDES计划和我们的第一年的结果。在2012年12月至2013年12月期间,我们观察了超过10,000个物体,并测量了超过6,000个红移。我们的策略重新瞄准在许多观测运行微弱的对象,使我们能够测量星系的红移为M_r=25 MAG.We概述了我们的目标选择和观测策略,量化红移的成功率为不同类型的目标,并讨论了我们的主要科学目标的影响。最后,我们强调了一些有趣的对象作为偶然的例子,但不是完全出乎意料的发现,可以从这样一个大的光谱调查。
英文摘要:
OzDES is a five-year, 100-night, spectroscopic survey on the Anglo-Australian Telescope, whose primary aim is to measure redshifts of approximately 2,500 Type Ia supernovae host galaxies over the redshift range 0.1 < z < 1.2, and derive reverberation-mapped black hole masses for approximately 500 active galactic nuclei and quasars over 0.3 < z < 4.5. This treasure trove of data forms a major part of the spectroscopic follow-up for the Dark Energy Survey for which we are also targeting cluster galaxies, radio galaxies, strong lenses, and unidentified transients, as well as measuring luminous red galaxies and emission line galaxies to help calibrate photometric redshifts.
Here we present an overview of the OzDES program and our first-year results. Between Dec 2012 and Dec 2013, we observed over 10,000 objects and measured more than 6,000 redshifts. Our strategy of retargeting faint objects across many observing runs has allowed us to measure redshifts for galaxies as faint as m_r=25 mag. We outline our target selection and observing strategy, quantify the redshift success rate for different types of targets, and discuss the implications for our main science goals. Finally, we highlight a few interesting objects as examples of the fortuitous yet not totally unexpected discoveries that can come from such a large spectroscopic survey.
GALATEA: The 15-m Galactic Archaeology Spectroscopic Surveyor
Centro de Estudios de Física del Cosmos de Aragón (CEFCA)(阿拉贡宇宙物理研究中心);LERMA, CNRS, Observatoire de Paris(巴黎天文台勒默实验室);Instituto de Astrofísica de Andalucía (IAA-CSIC)(安达卢西亚天体物理学研究所);Instituto de Astrofísica de Canarias (IAC)(加那利天体物理学研究所);Universidad de La Laguna(拉古纳大学);Leibniz-Institut für Astrophysik Potsdam (AIP)(波茨坦莱布尼茨天体物理学研究所);Universidad Complutense de Madrid(马德里康普顿斯大学);University of Edinburgh(爱丁堡大学)
Unlocking the physics of dwarf galaxies in the 2040s: The case for a next-generation wide-field spectroscopic facility with fibres and IFUs
INAF – Osservatorio Astronomico di Capodimonte(意大利国家天体物理研究所卡波迪蒙特天文台);INAF – Osservatorio Astronomico di Trieste(意大利国家天体物理研究所的里雅斯特天文台);INAF – Osservatorio Astrofisico di Arcetri(意大利国家天体物理研究所阿切尔菲天文台);Universität Innsbruck(因斯布鲁克大学);Université de Strasbourg, CNRS, Observatoire astronomique de Strasbourg(斯特拉斯堡大学,法国国家科学研究中心,斯特拉斯堡天文台);Universidad de Valladolid(巴利亚多利德大学);Instituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências, Universidade de Lisboa(里斯本大学理学院空间天体物理与科学研究所);INAF – Osservatorio Astronomico d’Abruzzo(意大利国家天体物理研究所阿布鲁佐天文台);University of Manchester(曼彻斯特大学);University of Salento(萨伦托大学);Ghent University(根特大学);Leiden University(莱顿大学);Instituto de Astrofísica de Canarias(加那利群岛天体物理研究所);University of Nottingham(诺丁汉大学);Institute of Space Sciences (ICE, CSIC)(空间科学研究所(加那利高等研究委员会));University of Naples Federico II(那不勒斯费德里科二世大学);INAF – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna(意大利国家天体物理研究所博洛尼亚天体物理与空间科学天文台);University of Surrey(萨里大学);European Southern Observatory(欧洲南方天文台);Instituto de Astrofísica de Andalucía (CSIC)(安达卢西亚天体物理研究所(加那利高等研究委员会));SISSA(国际高等研究学校);University of Southampton(南安普敦大学);Jet Propulsion Laboratory, California Institute of Technology(加州理工学院喷气推进实验室)
The Southern Stellar Stream Spectroscopic Survey (${S}^5$): Overview, Target Selection, Data Reduction, Validation, and Early Science
我们介绍了南方恒星流光谱调查(${S}^5$),一个正在进行的计划,以绘制南半球恒星流的运动学和化学。${S}^5$最初的重点是对最近在暗能量调查(DES)足迹内确定的流进行光谱观测,最终目标是调查整个南部天空的流。恒星流是由从矮星系和球状星团中被潮汐剥离的物质组成的,因此是银河系引力势的极好的动力学探测器,也提供了其吸积历史的详细快照。使用3.9米英澳望远镜的2度场光纤定位器和AAOmega摄谱仪进行观测,并将DES DR 1的精确测光与$Gaia$ DR 2的极好自行相结合,使我们能够进行有效的光谱测量来绘制这些恒星流。到目前为止,${S}^5$已经绘制了9个DES流和3个DES外流;前者是这些最近发现的流的第一次光谱观测。除了流调查,我们使用备用光纤进行银河系晕调查和低红移星系调查。本文概述了${S}^5$计划,描述了调查的科学动机,目标选择,观测策略,数据减少和调查验证。最后,我们描述了早期的科学成果恒星流和银河系晕星从调查得出。有关${S}^5$的更新,包括未来的公共数据发布,可在\url{http://s5collab.github.io}上找到。
Lithium as a Signpost for Compact Object Binary Candidates in the LAMOST Medium Resolution Survey
Harvey Mudd College(哈维穆德学院);Observatories of the Carnegie Institution for Science(卡内基科学研究所天文台);Department of Astronomy, California Institute of Technology(加州理工学院天文学系)
Method on Using Shadow Altitude to Remove Geocoronal H$α$
The Chinese University of Hong Kong(香港中文大学);JC STEM Lab of Astronomical Instrumentation, The Chinese University of Hong Kong(香港中文大学天文仪器STEM实验室);CUHK Shenzhen Research Institute(香港中文大学深圳研究院);Institute for Astrophysics, School of Physics, Zhengzhou University(郑州大学物理学院天体物理研究所)
The Impact of Cluster Mergers on Galaxy Properties
Macquarie University(麦考瑞大学);Ludwig-Maximilians-Universität München(慕尼黑路德维希-马克西米利安大学);University of Western Australia(西澳大学);Swinburne University(斯威本科技大学)
Hector Galaxy Survey: Data Processing, Quality Control and Early Science
Yonsei University(延世大学);The University of Sydney(悉尼大学);Macquarie University(麦考瑞大学);University of Groningen(格罗宁根大学);University of Queensland(昆士兰大学);Korea Astronomy and Space Science Institute (KASI)(韩国天文学与空间科学研究院);The University of Western Australia(西澳大学);Australian National University(澳大利亚国立大学);University of New South Wales(新南威尔士大学);Swinburne University of Technology(斯威本科技大学)