Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200502/amr_bg.pdf Дата изменения: Fri May 16 13:30:59 2014 Дата индексирования: Wed Apr 13 13:13:07 2016 Кодировка: Поисковые слова: earth's atmosphere

Updates and Additions to EPIC Background Products
http://www.sr.bham.ac.uk/xmm3/BGproducts.html A&A 409, 395 (2003) Update to talk presented at Tuebingen BG workshop

XMM EPIC MOS

Andy Read (amr30@star.le.ac.uk) XMM-EPIC Background workshop Mallorca, Spain 03/02/05


Blank sky event files essential for BG subtraction of e.g. extended objects filling FOV Extremely useful as alternative BG comparison method for semi-extended sources - Thick filter Instrument MOS1 MOS1 MOS1 MOS2 MOS2 MOS2 PN PN PN PN PN PN
XMM EPIC MOS

blank-sky background event files now available Mode Filter N OB S Exp FF Thin 49 FF Medium 21 FF Thick 14 FF Thin 46 FF Medium 26 FF Thick 14 FF Thin 18 FF Medium 12 FF Thick 12 FFext Thin 32 FFext Medium 8 FFext Thick 5
Andy Read (amr30@star.le.ac.uk) XMM-EPIC Background workshop Mallorca, Spain 03/02/05

.time (s) 1055905 488422 403938 1004709 592975 404717 351549 188159 242110 416739 82957 87525


Many users now making use of these BG event files

Other Updates
- Many due to requests & suggestions from users - See web site for details - Site linked from main ESA website (Vilspa) - Event files without (E1) and with (E2) the exposure extensions - Exposure extensions contain correct exposure times - Exposure maps with and without the effects of source removal - Source lists (position, obs.ID, TSTART/STOP) of each removed source for each (of the 12) blank sky event files (allows re-filtering of event files) - BGrebinimage2SKY_4arcs ­ Script+program to rebin and reproject the 4 resolution exposure maps ­ Transformation recently improved

XMM EPIC MOS

Andy Read (amr30@star.le.ac.uk) XMM-EPIC Background workshop Mallorca, Spain 03/02/05


Exposure Maps

- With source removal (av. ~ 30ks exp.)

- Without source removal

XMM EPIC MOS

Andy Read (amr30@star.le.ac.uk) XMM-EPIC Background workshop Mallorca, Spain 03/02/05


- Use of BGrebinimage2SKY_4arcs to transform/rebin from DET to SKY - Can now do all BG analysis in DET or SKY coordinates BG Exposure map (4) in detector coordinates User's image (??) in sky coordinates BG Exposure map (??) in user's sky coordinates

http://www.sr.bham.ac.uk/xmm3/BGproducts.html
XMM EPIC MOS

Andy Read (amr30@star.le.ac.uk) XMM-EPIC Background workshop Mallorca, Spain 03/02/05