Non-equilibrium ionization effects in the supernova remnant RCW 86

Journal Article · Wed Feb 01 04:00:00 EST 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167110· OSTI ID:5557359

Claas, J J; Kaastra, J S; Smith, A; Peacock, A; De Korte, P A.J. ^[1]

---

1. Leiden Rijksuniversiteit (Netherlands)

X-ray images show that the SNR RCW 86 consists of two emission regions. The electron temperature of both two regions is 3.4 keV. The low-energy flux (0.2-2 keV) is strongly enhanced compared to a simple thermal bremsstrahlung spectrum with Te = 3.4 keV fitted to the 2-10 keV data. This enhancement is most likely caused by nonequilibrium ionization effects in which case our data of RCW 86 are consistent with a Type I remnant for which the northeast part is in the Sedov phase. The large brightnees of the southwest part is most probably caused by a recent collision of the shock with higher density clouds. 31 references.

• OSTI ID: 5557359
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 337; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BREMSSTRAHLUNG
COSMIC GASES
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
FLUIDS
GASES
INTERACTIONS
IONIZATION
IONIZING RADIATIONS
RADIATION FLUX
RADIATIONS
SATELLITES
SHOCK WAVES
SUPERNOVA REMNANTS
WAVE PROPAGATION
X RADIATION