Continuing Planck Surveyor LPAC Support

普朗克测量卫星定于2008年发射。它将创建30- 850 GHz的全天空地图，允许观测低频的银河系同步辐射和自由辐射，高频的银河系尘埃辐射，以及由于这些物理过程以及Sunyaev-Zeldovich效应等其他来源而产生的河外源的辐射。首先，它将观察宇宙微波背景（CMB）的强度和偏振，并允许我们重建原始等离子体的状态，从而测量基本的宇宙学参数。帝国集团，伦敦普朗克分析中心（LPAC）的任务主要是普朗克/HFI的几何校准：我们确定焦平面的布局和望远镜光束的形状使用行星和更远的点源的原位测量。我们还参与了几个负责创建中间和最终数据产品的普朗克工作组：与赫歇尔和其他仪器共享的各种点源目录，CMB和前景图，以及CMB功率谱。2006年9月，英国赫歇尔-普朗克监督委员会（HPOC）已经审查并批准了支持案例。随后与PPARC/STFC进行了讨论，以商定方案细节。

The Planck surveyor satellite is due for launch in 2008. It will create all-sky maps over 30-850GHz, allowing observation of galactic synchrotron and free-free emission at low frequencies, galactic dust emission at high frequencies, and emission from extragalactic sources due to these physical processes as well as other sources such as the Sunyaev-Zeldovich effect. Primarily, it will observe the cosmic microwave background (CMB) in both intensity and polarization and allow us to reconstruct the state of the primordial plasma, and thereby measure the underlying cosmological parameters. The task of the Imperial group, the London Planck Analysis Centre (LPAC) is primarily the geometric calibration of Planck/HFI: we determine the layout of the focal plane and the shape of the telescope beam using in situ measurements of planets and more distant point sources. We are also involved in several of the Planck Working Groups responsible for creating the intermediate and final data products: the various point-source catalogues to be shared with Herschel and other instruments, the CMB and foreground maps, and the CMB power spectrum. The case for support has already been reviewed and approved by the UK Herschel-Planck Oversight Committee (HPOC) in September 2006. Subsequent discussions with PPARC/STFC have been held to agree programme details.