High-speed astrophysics with ULTRACAM

使用 ULTRACAM 进行高速天体物理学

• 批准号: PP/E001777/1
• 负责人: Vikram Singh Dhillon
• 金额: $ 36.6万
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=PP%2FE001777%2F1
• 关键词: speed; astrophysics; ULTRACAM

ULTRACAM is a digital camera capable of taking (and storing) up to 500 red, green and blue images per second. The instrument was built in just under 3 years by a consortium from the Universities of Sheffield, Warwick and the UK Astronomy Technology Centre in Edinburgh, using a £300,000 grant awarded by PPARC. ULTRACAM saw 'first light' on 16 May 2002 on the 4.2-m William Herschel Telescope (WHT) on La Palma, and first light on the 8.2-m Very Large Telescope (VLT) in Chile on 4 May 2005. This latter telescope is currently the world's largest and ULTRACAM became both the first instrument to make use of its new 'Visitor Focus' and the first UK-built instrument to be mounted (at any focus) on the VLT. To date, ULTRACAM has been awarded a total of 87 nights on the WHT and 23 nights on the VLT for projects in many different areas of astrophysics, including the study of white dwarfs, brown dwarfs, red dwarfs, pulsars, black-hole/neutron-star X-ray binaries, gamma-ray bursts, cataclysmic variables, eclipsing binary stars, extrasolar planets, active galactic nuclei and occultations by Solar System objects (Titan, Pluto and Kuiper Belt objects). Since ULTRACAM is a private instrument, the ULTRACAM team at Sheffield are responsible for the installation and removal of the instrument as well as for the observations with it. This means that the ULTRACAM team have had to spend approximately 200 nights at the WHT and VLT over the past 4 years. Dhillon (the ULTRACAM PI) has been finding it increasingly difficult to meet this demand for time on ULTRACAM and balance it against the time required to fully exploit the unique scientific datasets which have been/will be obtained and the continued maintenance and enhancements required to keep the instrument at the forefront of its field. This grant therefore requests funding to enable Dhillon to devote all of his time to the ULTRACAM project for the next 3 years. The grant also requests continued funding for Littlefair, the ULTRACAM PDRA at Sheffield, who is now a fully-trained, invaluable member of the team who is leading two major ULTRACAM research projects.

ULTRACAM是一种数码相机，每秒可拍摄（并存储）多达500张红色、绿色和蓝色图像。该仪器是由谢菲尔德大学、沃里克大学和爱丁堡英国天文技术中心的一个财团在不到3年的时间内建造的，使用了PPARC授予的30万英镑赠款。ULTRACAM于2002年5月16日在拉帕尔马的4.2米威廉赫歇尔望远镜（WHT）上看到了“第一束光”，2005年5月4日在智利的8.2米甚大望远镜（VLT）上看到了第一束光。后者是目前世界上最大的望远镜，ULTRACAM成为第一台使用其新的“游客焦点”的仪器，也是第一台安装在VLT上的英国制造的仪器。到目前为止，ULTRACAM已被授予总共87晚的WHT和23晚的VLT，用于天体物理学许多不同领域的项目，包括白色矮星，棕矮星，红矮星，双星，黑洞/中子星X射线双星，伽马射线爆发，灾变变星，食双星，太阳系外行星，活动星系核和太阳系天体掩星的研究（泰坦，冥王星和柯伊伯带天体）。由于ULTRACAM是一台私人仪器，谢菲尔德的ULTRACAM团队负责安装和拆卸仪器以及使用仪器进行观测。这意味着ULTRACAM团队在过去的4年里不得不在WHT和VLT度过大约200个夜晚。Dhillon（ULTRACAM PI）发现越来越难以满足ULTRACAM对时间的需求，并将其与充分利用已经/将要获得的独特科学数据集所需的时间进行平衡，以及将仪器保持在其领域的最前沿所需的持续维护和增强。因此，这笔赠款要求提供资金，使Dhillon能够在未来3年内将所有时间投入ULTRACAM项目。该赠款还要求继续为Littlefair提供资金，Littlefair是谢菲尔德的ULTRACAM PDRA，他现在是领导两个主要ULTRACAM研究项目的团队中训练有素的宝贵成员。

项目成果

ULTRACAM photometry of the ultracompact binaries V407 Vul and HM Cnc

• DOI: 10.1111/j.1365-2966.2006.11244.x
• 发表时间: 2006-11
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: S. Barros;T. Marsh;V. Dhillon;P. Groot;S. Littlefair;G. Nelemans;G. Roelofs;D. Steeghs;P. Wheat

Two planets orbiting the recently formed post-common envelope binary NN Serpentis

• DOI: 10.1051/0004-6361/201015472
• 发表时间: 2010-10
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: K. Beuermann;F. Hessman;S. Dreizler;T. Marsh;S. Parsons;D. Winget;G. Miller;M. Schreiber;W. Kley;V. Dhillon;S. Littlefair;C. Copperwheat;J. Hermes

A Systematic Search of Zwicky Transient Facility Data for Ultracompact Binary LISA-detectable Gravitational-wave Sources

• DOI: 10.3847/1538-4357/abc261
• 发表时间: 2020-09
• 期刊: The Astrophysical Journal
• 作者: K. Burdge;T. Prince;J. Fuller;D. Kaplan;T. Marsh;P. Tremblay;Z. Zhuang;E. Bellm;I. Caiazzo

WD1032 + 011, an inflated brown dwarf in an old eclipsing binary with a white dwarf

• DOI: 10.1093/mnras/staa1608
• 发表时间: 2020-06
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: S. Casewell;C. Belardi;S. Parsons;S. Littlefair;I. Braker;J. Hermes;J. Debes;Z. Vanderbosch

A stellar flare during the transit of the extrasolar planet OGLE-TR-10b

太阳系外行星 OGLE-TR-10b 凌日期间的恒星耀斑

• DOI: 10.1051/0004-6361/200912257
• 发表时间: 2009
• 期刊: Astronomy & Astrophysics
• 影响因子: 6.5
• 作者: Bentley S