Euclid OU-MER Hervé Dole et al. MER tasks – 1. MER photometry strategies – 2. Pipeline Interface Reconciliation Meeting in Rome, December 2015 – 3. Conclusions, perspectives – 4. OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 1
1. MER tasks VIS Background Object Multiband NIR subtraction detection photometry EXT PSF fitting Aperture photometry photometry providers Morphology, Internal PSF source simulations homogenization classification Object Mosaics deblending MER deliveries PHZ • Mosaics SIR • Final catalog (multiband photometry, SHE classification) • PSFs customers OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 2
1. MER tasks VIS Background Object Multiband NIR subtraction detection photometry EXT PSF fitting Aperture photometry photometry providers Morphology, Internal PSF source simulations homogenization classification Object Mosaics deblending MER: total of 13 WP w/ MER products PHZ 3 french-led • Mosaics SIR • Final catalog (multiband photometry, SHE classification) • PSFs customers OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 3
2. MER photometry strategies MER multiband photometry Aperture Photometry on PSF-homogenized images Multiband PSF-fitting photometry Homogeneous Optimal PSF-fitting algorithm PSF-matching PSF-matching (e.g. TPHOT) All options require PSF homogenization kernels Homogenization to Homogenization Kernel used for the largest PSF “band-to-band” model, minimization of the catalogue for each color & check Courtesy Alexandre Boucaud OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 4
3. Pipeline Interface Reconciliation Meeting � Interface Reconciliation Meeting, Rome Dec 1-2 � http://wiki.cosmos.esa.int/euclid/index.php/OU-MER_Interface/Pipeline_Reconciliation_Meeting,_1-2_December_in_Rome,_Italy � MER, VIS, NIR, SIR, PHZ, EXT, SHE, LE3, SGS, ST, WLSWG, SWG-NearbyUniv, SWG-Morphology (Duc, Huertas) � Formulation commune des processus, des sujets et identification des interlocuteurs � Topics: PSF, Mosaics, Object detection/Cataloguing/ Photometry, Morphology, interfaces OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 5
3. Pipeline Interface Reconciliation Meeting � PSF: models & mesurements � Mosaics OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 6
3. Pipeline Interface Reconciliation Meeting � Cataloguing / Object detection / Photometry � Morphology SWG: P-A Duc, M. Huertas proximité SWG-OU souhaitable, à l’exemple de CL-SWG–LE3 ? OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 7
4. Conclusions, perspectives � MER-PHZ Data Challenge #2 ongoing/done � Protopipeline MER assembled � Important Rome December Meeting � Morphology: SWG & MER are already working (CEA/AIM, GEPI, IAS, OA Roma); will include VIS � Test of codes; meeting in january; � Next Garage Days will have MER/EXT topics discussed � Photometric quality in overdense regions (e.g galaxy clusters) � Some challenges � PSF requirements: NIR (undersampling) / VIS (color) > MER > PHZ � Background subtraction OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 8
EXTRA EXTRA SLIDES SLIDES OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 9
MER: Rome meeting, Dec 2015 outcome OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 10
MER: Rome meeting, Dec 2015 outcome OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 11
MER: Rome meeting, Dec 2015 outcome OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 12
MER: Rome meeting, Dec 2015 outcome OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 13
MER: Rome meeting, Dec 2015 outcome OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 14
Euclid SGS OU overview � Calibrated single-epoch VIS exposures VIS SHE VIS catalogue with source density VIS images & Shear Raw VIS Photo-z catalogue EC Catalogue EC Catalogue NIR Survey mask images Coadded images Photo-z & catalogue multi-band EC Catalogue Raw NISP-P SIM NIR MER PHZ LE3 catalogue NIR + EXT Detections Spectroscopic NIR Euclidized Training NIR Detections Ground Based Sample detections with Photo-z Spectra frames & EC Catalogue catalogues Raw NISP-S Ground Based Gaia catalogues Catalogue Gaia 2D SIR images SPE SIR catalogue 1D SIR spectra Level 1 Image data Ground Level 2 EXT Based Raw Images Level 3 Catalogue data (DES - KIDS + HSC + ...) Level EXT HD, AB, July 2014 - adapted from Santiago Serrano, May 2014 � 15 OU-MER - Euclid FR - Jan 2016 - H. Dole IAS
work packages red: IAS responsability in OU-MER as of tools -> Dec 1st, 2015 OU-MER Lead: IT Co-lead: FR, DE multiband detection -> SDC lead: IT multi-wv photometry -> FR: IAS, IRAP , APC sims -> validation -> OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 16
Euclid PSF simulations NISP y -band � VIS � NISP j -band � NISP h -band � 40 x 40 arcsecs � Convolution of � input image with � the produced kernel � to the NISP h -band � premilinary simulated PSF kindly provided by OU-SIM P . Hudelot (IAP) and G. Seidel (MPIA) OU-MER - Euclid FR - Jan 2016 - H. Dole IAS 17
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