SOFT X-RAY SPECTROSCOPY OF THE CYGNUS LOOP SUPERNOVA REMNANT

Journal Article · Wed Mar 20 04:00:00 EDT 2013 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/766/1/51· OSTI ID:22167556

Oakley, Phil ^[1]; McEntaffer, Randall ^[2]; Cash, Webster ^[3]

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1. Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Ave., 37-582F, Cambridge, MA 02139 (United States)
2. Department of Physics and Astronomy, Van Allen Hall, University of Iowa, Iowa City, IA 52242 (United States)
3. Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309 (United States)

We present the results of a suborbital rocket flight whose scientific target was the Cygnus Loop Supernova Remnant. The payload consists of wire grid collimators, off-plane grating arrays, and gaseous electron multiplier (GEM) detectors. The system is designed for spectral measurements in the 17-107 A bandpass with a resolution up to {approx}60 ({lambda}/{Delta}{lambda}). The Extended X-ray Off-plane Spectrometer (EXOS) was launched on a Terrier-Black Brant rocket on 2009 November 13 from White Sands Missile Range and obtained 340 s of useable scientific data. The X-ray emission is dominated by O VII and O VIII, including the He-like O VII triplet at {approx}22 A. Another emission feature at {approx}45 A is composed primarily of Si XI and Si XII. The best-fit model to this spectrum is an equilibrium plasma model at a temperature of log(T) = 6.4 (0.23 keV).

• OSTI ID: 22167556
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 766; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
79 ASTRONOMY AND ASTROPHYSICS
COLLIMATORS
ELECTRON MULTIPLIER DETECTORS
EMISSION
EQUILIBRIUM PLASMA
KEV RANGE
RESOLUTION
ROCKETS
SOFT X RADIATION
SPACE VEHICLES
SPECTROSCOPY
SUPERNOVA REMNANTS
X-RAY SPECTROMETERS