Overview of the Nearby Supernova Factory
Overview of the Nearby Supernova Factory
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DOI：
10.1117/12.458107
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发表时间：
2002-07
影响因子：
5.6
通讯作者：
G. Aldering;G. Adam;P. Antilogus;P. Astier;R. Bacon;S. Bongard;C. Bonnaud;Y. Copin;D. Hardin;F. Hénault;D. Howell;J. Lemonnier;J. Levy;S. Loken;P. Nugent;R. Pain;A. Pécontal;E. Pecontal;S. Perlmutter;R. Quimby;K. Schahmaneche;G. Smadja;W. M. Wood-Vasey
中科院分区：
文献类型：
--
作者：
G. Aldering;G. Adam;P. Antilogus;P. Astier;R. Bacon;S. Bongard;C. Bonnaud;Y. Copin;D. Hardin;F. Hénault;D. Howell;J. Lemonnier;J. Levy;S. Loken;P. Nugent;R. Pain;A. Pécontal;E. Pecontal;S. Perlmutter;R. Quimby;K. Schahmaneche;G. Smadja;W. M. Wood-Vasey
附近的超新星工厂(SNFactory)是一项国际性实验，旨在为下一代宇宙学实验(如CFHTLS、WP、SNAP和LSST)奠定基础，这些实验将使用Ia型超新星测量宇宙的膨胀历史。SNFactory将在平滑哈勃气流的低红移端发现并获得覆盖约300颗Ia型超新星的3200-10000ä的频繁光曲线分光光度测量。SNFactory数据集的数量、质量、银河系环境的广度和同质性将使其成为Ia型超新星宽度-亮度关系和用于K校正和宿主星系尘埃灭绝校正的固有超新星颜色的主要校准来源。这一数据集还将允许对可能影响Ia型超新星作为宇宙学探测器的质量的其他参数进行广泛调查。SNFactory搜索能力和后续仪器包括两台1.2米望远镜上的广视场CCD成像仪(通过与喷气推进实验室的近地小行星跟踪团队和耶鲁大学的Quest团队合作)，以及正在为夏威夷大学2.2米望远镜制造的双通道整场单位光学光谱仪/成像仪。除了地面跟踪，HST还将获得这些超新星的一个子样本的紫外线光谱。通过无线和标准互联网获取、传输和自动处理搜索图像的管道正在运行。目前正在开发软件和硬件，以便通过自动遥控望远镜和IFU光谱仪/成像仪，对夏威夷2.2米望远镜上的超新星候选者进行后续光谱分析。
The Nearby Supernova Factory (Snfactory) is an international experiment designed to lay the foundation for the next generation of cosmology experiments (such as CFHTLS, wP, SNAP and LSST) which will measure the expansion history of the Universe using Type Ia supernovae. The Snfactory will discover and obtain frequent lightcurve spectrophotometry covering 3200-10000Å for roughly 300 Type Ia supernovae at the low-redshift end of the smooth Hubble flow. The quantity, quality, breadth of galactic environments, and homogeneous nature of the Snfactory dataset will make it the premier source of calibration for the Type Ia supernova width-brightness relation and the intrinsic supernova colors used for K-correction and correction for extinction by host-galaxy dust. This dataset will also allow an extensive investigation of additional parameters which possibly influence the quality of Type Ia supernovae as cosmological probes. The Snfactory search capabilities and follow-up instrumentation include wide-field CCD imagers on two 1.2-m telescopes (via collaboration with the Near Earth Asteroid Tracking team at JPL and the QUEST team at Yale), and a two-channel integral-field-unit optical spectrograph/imager being fabricated for the University of Hawaii 2.2-m telescope. In addition to ground-based follow-up, UV spectra for a subsample of these supernovae will be obtained with HST. The pipeline to obtain, transfer via wireless and standard internet, and automatically process the search images is in operation. Software and hardware development is now underway to enable the execution of follow-up spectroscopy of supernova candidates at the Hawaii 2.2-m telescope via automated remote control of the telescope and the IFU spectrograph/imager.