XMM-Newton-NEWS  #142,    08-Oct-2012

XMM-Newton Science Operations Centre at
ESA's European Space Astronomy Centre,
P.O. Box - Apdo. 78, 28691 Villanueva de la Cañada, Madrid, Spain

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XMM-Newton AO-12 closure

The XMM-Newton twelfth Announcement of Opportunity (AO-12) closed on the 5th of October 2012.

In total, 475 valid proposals were submitted, requesting 86.0 Ms of science time. This Announcement of Opportunity covers a period of one year, with 14.5 Ms of observing time available for distribution. The over-subscription factor is 5.9.

A total of 66 proposals for "Large Programmes" were received. Triggered/ToO observations were requested in 57 proposals. For the joint programmes, 43 proposals were submitted: 15 requested time for the XMM-HST programme, 14 for the XMM-SWIFT programme, 9 for the XMM-Chandra programme, and 8 for the XMM-VLT programme.

SOC received proposals from 364 different principal investigators from 24 countries, mostly ESA member states, the United States and Japan. The number of countries involved increases to 38 if co-investigators are taken into account as well. Considering principal investigators and co-investigators, about 1500 individual scientists were involved in the response to the twelfth Announcement of Opportunity.

Yours sincerely,
XMM-Newton SOC