2008A&A...478..575K


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET00:54:37

2008A&A...478..575K - Astronomy and Astrophysics, volume 478, 575-596 (2008/2-1)

The EPIC-MOS particle-induced background spectra.

KUNTZ K.D. and SNOWDEN S.L.

Abstract (from CDS):

To analyze diffuse emission that fills the field of view, one must accurately characterize the instrumental backgrounds. For the XMM-Newton EPIC-MOS instrument these backgrounds include a temporally variable ``quiescent'' component, as well as the strongly variable soft proton contamination. We have characterized the spectral and spatial response of the EPIC-MOS detectors to these background components and have developed tools to remove these backgrounds from observations. The ``quiescent'' component was characterized using a combination of the filter-wheel-closed data and a database of unexposed-region data. The soft proton contamination was characterized by differencing images and spectra taken during flared and flare-free intervals. After application of our modeled backgrounds, the differences between independent observations of the same region of blank sky are consistent with the statistical uncertainties except when there is clear spectral evidence of solar wind charge exchange emission. Using a large sample of blank sky data, we show that strong magnetospheric SWCX emission requires elevated solar wind fluxes; observations through the densest part of the magnetosheath are not necessarily strongly contaminated with SWCX emission.

Abstract Copyright:

Journal keyword(s): methods: data analysis - instrumentation: detectors - X-rays: general

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Magellanic Bridge HI 03 11 -77.5           ~ 355 1
2 NAME Marano1 Field reg 03 15.2 -55 14           ~ 19 0
3 NAME Lockman Hole reg 10 45 00.0 +58 00 00           ~ 758 0
4 NAME Polaris Flare MoC 11 00 14.8 +86 10 52           ~ 168 1
5 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1844 1
6 NAME LHB X 16 42.0 +02 19           ~ 273 0
7 GAL 000.0+00.0 gam 17 45 39.60213 -29 00 22.0000           ~ 12014 0
8 NAME Markkanen Cloud Cld ~ ~           ~ 7 2

    Equat.    Gal    SGal    Ecl

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