Soft X-ray spectroscopy of the cygnus loop supernova remnant

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The Cygnus X-Ray Emission Spectroscopic Survey (CyXESS) sounding rocket payload was launched from White Sands Missile Range on 2006 November 20 and obtained a high-resolution spectrum of the Cygnus Loop supernova remnant in the soft X-ray. The novel X-ray spectrograph incorporated a wire-grid collimator feeding an array of gratings in the extreme off-plane mount that ultimately dispersed the spectrum onto gaseous electron multiplier (GEM) detectors. This instrument recorded 65 s of usable data between 43 and 49.5 Å in two prominent features. The first feature near 45 Å is dominated by the He-like triplet of O VII in second order with contributions from Mg X and Si IX-Si XII in first order, while the second feature near 47.5 Å is first-order S IX and S X. Fits to the spectra give an equilibrium plasma at log (T) = 6.2 (kTe, = 0.14 keV) and near cosmic abundances. This is consistent with previous observations, which demonstrated that the soft X-ray emission from the Cygnus Loop is dominated by interactions between the initial blast wave and the walls of a precursor-formed cavity surrounding the Cygnus Loop and that this interaction can be described using equilibrium conditions.

Original languageEnglish (US)
Pages (from-to)328-335
Number of pages8
JournalAstrophysical Journal
Volume680
Issue number1
DOIs
StatePublished - Jun 10 2008

Fingerprint

supernova remnants
X-ray spectroscopy
spectroscopy
x rays
missile ranges
plasma equilibrium
sounding rockets
blasts
photomultiplier tubes
collimators
payloads
sands
spectrographs
cavity
grids
interactions
wire
gratings
plasma
electron

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

@article{711c84544e5245cd91ced3dba9725b0e,
title = "Soft X-ray spectroscopy of the cygnus loop supernova remnant",
abstract = "The Cygnus X-Ray Emission Spectroscopic Survey (CyXESS) sounding rocket payload was launched from White Sands Missile Range on 2006 November 20 and obtained a high-resolution spectrum of the Cygnus Loop supernova remnant in the soft X-ray. The novel X-ray spectrograph incorporated a wire-grid collimator feeding an array of gratings in the extreme off-plane mount that ultimately dispersed the spectrum onto gaseous electron multiplier (GEM) detectors. This instrument recorded 65 s of usable data between 43 and 49.5 {\AA} in two prominent features. The first feature near 45 {\AA} is dominated by the He-like triplet of O VII in second order with contributions from Mg X and Si IX-Si XII in first order, while the second feature near 47.5 {\AA} is first-order S IX and S X. Fits to the spectra give an equilibrium plasma at log (T) = 6.2 (kTe, = 0.14 keV) and near cosmic abundances. This is consistent with previous observations, which demonstrated that the soft X-ray emission from the Cygnus Loop is dominated by interactions between the initial blast wave and the walls of a precursor-formed cavity surrounding the Cygnus Loop and that this interaction can be described using equilibrium conditions.",
author = "McEntaffer, {Randall Lee} and W. Cash",
year = "2008",
month = "6",
day = "10",
doi = "10.1086/587936",
language = "English (US)",
volume = "680",
pages = "328--335",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",

}

Soft X-ray spectroscopy of the cygnus loop supernova remnant. / McEntaffer, Randall Lee; Cash, W.

In: Astrophysical Journal, Vol. 680, No. 1, 10.06.2008, p. 328-335.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Soft X-ray spectroscopy of the cygnus loop supernova remnant

AU - McEntaffer, Randall Lee

AU - Cash, W.

PY - 2008/6/10

Y1 - 2008/6/10

N2 - The Cygnus X-Ray Emission Spectroscopic Survey (CyXESS) sounding rocket payload was launched from White Sands Missile Range on 2006 November 20 and obtained a high-resolution spectrum of the Cygnus Loop supernova remnant in the soft X-ray. The novel X-ray spectrograph incorporated a wire-grid collimator feeding an array of gratings in the extreme off-plane mount that ultimately dispersed the spectrum onto gaseous electron multiplier (GEM) detectors. This instrument recorded 65 s of usable data between 43 and 49.5 Å in two prominent features. The first feature near 45 Å is dominated by the He-like triplet of O VII in second order with contributions from Mg X and Si IX-Si XII in first order, while the second feature near 47.5 Å is first-order S IX and S X. Fits to the spectra give an equilibrium plasma at log (T) = 6.2 (kTe, = 0.14 keV) and near cosmic abundances. This is consistent with previous observations, which demonstrated that the soft X-ray emission from the Cygnus Loop is dominated by interactions between the initial blast wave and the walls of a precursor-formed cavity surrounding the Cygnus Loop and that this interaction can be described using equilibrium conditions.

AB - The Cygnus X-Ray Emission Spectroscopic Survey (CyXESS) sounding rocket payload was launched from White Sands Missile Range on 2006 November 20 and obtained a high-resolution spectrum of the Cygnus Loop supernova remnant in the soft X-ray. The novel X-ray spectrograph incorporated a wire-grid collimator feeding an array of gratings in the extreme off-plane mount that ultimately dispersed the spectrum onto gaseous electron multiplier (GEM) detectors. This instrument recorded 65 s of usable data between 43 and 49.5 Å in two prominent features. The first feature near 45 Å is dominated by the He-like triplet of O VII in second order with contributions from Mg X and Si IX-Si XII in first order, while the second feature near 47.5 Å is first-order S IX and S X. Fits to the spectra give an equilibrium plasma at log (T) = 6.2 (kTe, = 0.14 keV) and near cosmic abundances. This is consistent with previous observations, which demonstrated that the soft X-ray emission from the Cygnus Loop is dominated by interactions between the initial blast wave and the walls of a precursor-formed cavity surrounding the Cygnus Loop and that this interaction can be described using equilibrium conditions.

UR - http://www.scopus.com/inward/record.url?scp=46249118264&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=46249118264&partnerID=8YFLogxK

U2 - 10.1086/587936

DO - 10.1086/587936

M3 - Article

VL - 680

SP - 328

EP - 335

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

ER -