Isothermal blast wave model of supernova remnants

Journal Article · Wed Oct 15 04:00:00 EDT 1975 · Astrophys. J., v. 201, no. 2, pp. 381-386

DOI:https://doi.org/10.1086/153896· OSTI ID:4109836

Solinger, A; Rappaport, S; Buff, J

The validity of the ''adiabatic'' assumption in supernova remnant calculations is examined, and the alternative extreme of an isothermal blast wave is explored. It is concluded that, because of thermal conductivity, the large temperature gradients predicted by the adiabatic model probably are not maintained in nature. Self-similar solutions to the hydrodynamic equations for an isothermal blast wave have been found and studied. These solutions are then used to determine the relationship between X-ray observations and inferred parameters of supernova remnants. A comparison of the present results with those for the adiabatic model indicates differences which are less than present observational uncertainties. It is concluded that most parameters of supernova remnants inferred from X-ray measurements are relatively insensitive to the specifics of the blast wave model. (AIP)

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-017990
• OSTI ID: 4109836
• Journal Information: Astrophys. J., v. 201, no. 2, pp. 381-386, Journal Name: Astrophys. J., v. 201, no. 2, pp. 381-386; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

*SUPERNOVA REMNANTS-- SHOCK WAVES
640102* --Physics Research--Astrophysics & Cosmology--Stars
COSMIC X-RAY SOURCES
CRAB NEBULA
HYDRODYNAMICS
N56200* --Physics (Astrophysics & Cosmology)--Stars
N56300 --Physics (Astrophysics & Cosmology)--Quasi-stellar
Radio & X-Ray Sources
TEMPERATURE DEPENDENCE
THERMAL CONDUCTION