Milano, 14 February 2014

ATHENA day

FABIO GASTALDELLOINAF, IASF-Milano

A. DE LUCA, A. GIULIANI, N. LA PALOMBARA, S. MEREGHETTI, S. MOLENDI, A.

MORETTI, M. ROSSETTI, D. SPIGA, A. TIENGO

BACKGROUND BACKGROUND CHARACTERIZATIONCHARACTERIZATION

EXPERTISEEXPERTISE

DETAILED STUDIES OF X-RAY BACKGROUND IN MANY PAST AND PRESENT

SATELLITES

ANALYSIS OF GEANT 4 SIMULATIONS FOR MISSION STUDIES

WHY ARE WE OBSESSED WITH BKG ? WHY ARE WE OBSESSED WITH BKG ?

De Luca & Molendi 04

Detailed knowledge of bkg is crucial to measure faint diffuse X-ray sources: outer regions of clusters and groups and the CXB

REPRODUCIBILITY OF BKG REPRODUCIBILITY OF BKG

De Luca & Molendi 04

Stability of the spectral shape in time and across the detector is key

IMPORTANCE OF CORNER DATA IMPORTANCE OF CORNER DATA

De Luca & Molendi 04

Snapshot of the particle background at the same time of your obs

PUTTING ALL TOGETHER FOR PUTTING ALL TOGETHER FOR CLUSTERS CLUSTERS

Leccardi & Molendi 08

PUTTING ALL TOGETHER FOR PUTTING ALL TOGETHER FOR CLUSTERS CLUSTERS

Leccardi & Molendi 08

SWIFT ON A LEOSWIFT ON A LEO

Moretti+09,+11

EFFECT OF THE ORBITEFFECT OF THE ORBIT

Moretti et al in prep.

Higher bkg for high orbit satellites and significant variation due to solar acitivity. In LEO even very different design (Suzaku and Swift) have similar bkg

SOFT PROTONSSOFT PROTONS

Tiengo 07

SOFT PROTONSSOFT PROTONS

Tiengo 07

SOFT PROTONSSOFT PROTONS

XMM-SOC-GEN-TN-0014Issue 3.3

PROTON MAGNETIC DIVERTERPROTON MAGNETIC DIVERTER

Spiga+07

LESSONS (NOT) LEARNEDLESSONS (NOT) LEARNED

Branduardi-Raymont+85

CONCLUSIONSCONCLUSIONS

CAREFUL CHARACTERIZATION OF THE BKG FOR MANY SATELLITES CAN HELP IN IDENTIFYING PROBLEMS AND PROPOSE SOLUTIONS

BKG WILL BE CRITICAL FOR MANY OF THE SCIENCE GOALS OF ATHENA