Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-05-02
Astrophys.J.576:188-203,2002
Astronomy and Astrophysics
Astrophysics
To appear in The Astrophysical Journal
Scientific paper
10.1086/341727
A high spectral resolution observation of the diffuse X-ray background in the 60 - 1000 eV energy range has been made using an array of thirty-six 1 mm^2 micro-calorimeters flown on a sounding rocket. Detector energy resolution ranged from 5-12 eV FWHM, and a composite spectrum of ~ 1 steradian of the background centered at l = 90, b = +60 was obtained with a net resolution of ~ 9 eV. The target area includes bright 1/4 keV regions, but avoids Loop I and the North Polar Spur. Lines of C VI, O VII, and O VIII are clearly detected with intensities of 5.4 +/- 2.3, 4.8 +/- 0.8, and 1.6 +/- 0.4 photons cm^-2 s^-1 sr^-1, respectively. The oxygen lines alone account for a majority of the diffuse background observed in the ROSAT R4 band that is not due to resolved extragalactic discrete sources. We also have a positive detection of the Fe-M line complex near 70 eV at an intensity consistent with previous upper limits that indicate substantial gas phase depletion of iron. We include a detailed description of the instrument and its detectors.
Almy R.
Apodaca E.
Bergmann Tiest W.
Cui Wei-Wei
Deiker Steve
No associations
LandOfFree
A High Spectral Resolution Observation of the Soft X-ray Diffuse Background with Thermal Detectors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A High Spectral Resolution Observation of the Soft X-ray Diffuse Background with Thermal Detectors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A High Spectral Resolution Observation of the Soft X-ray Diffuse Background with Thermal Detectors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-231821