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High Energy, High Resolution X-Ray Spectroscopy: Microcalorimeters For Nuclear Line Astrophysics
- Publication Year :
- 2005
-
Abstract
- We introduce focusing optics and microcalorimeter spectroscopy to nuclear line emission astrophysics with a balloon payload concept called, B‐MINE. It is designed to probe the deepest regions of a supernova explosion by detecting 44Ti emission at 68 keV with spatial and spectral resolutions that are sufficient to determine the velocity distribution of the 44Ti emitting region. B‐MINE has a thin plastic foil telescope multilayered to maximize the reflectivity in a 20 keV band centered at 68 keV and a microcalorimeter array optimized for the same energy band. This combination provides a reduced background, an energy resolution of 50 eV and a 3σ sensitivity in 106 s of 6 × 10−8 ph cm−2 s−1 at 68 keV. During the course of a long duration balloon flight, B‐MINE could carry out a detailed study of the 44Ti emission line centroids and width in CAS A. Details of the spectrometer and simulated results are presented.
- Subjects :
- Physics
X-ray spectroscopy
Spectrometer
Physics::Instrumentation and Detectors
business.industry
Astrophysics::High Energy Astrophysical Phenomena
Resolution (electron density)
Astrophysics
law.invention
Telescope
Supernova
Optics
law
Emission spectrum
Spectroscopy
business
X- and gamma-ray telescopes and instrumentation, Photometric polarimetric and spectroscopic instrumentation
Line (formation)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....1e003909f72cbedde95924144a93215d