ChandraObservations of Shock Kinematics in Supernova Remnant 1987A | Zendy

Svetozar A. Zhekov | Zendy; Richard McCray | Zendy; K. J. Borkowski | Zendy; D. N. Burrows | Zendy; S. Park | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

ChandraObservations of Shock Kinematics in Supernova Remnant 1987A

Author(s) -

Svetozar A. Zhekov,

Richard McCray,

K. J. Borkowski,

D. N. Burrows,

S. Park

Publication year - 2005

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/432794

Subject(s) - physics , astrophysics , supernova , supernova remnant , line (geometry) , astronomy , shock wave , blast wave , near earth supernova , shock (circulatory) , ionization , ion , medicine , geometry , mathematics , thermodynamics , quantum mechanics

We report the first results from deep X-ray observations of the SNR 1987Awith the Chandra LETG. Temperatures inferred from line ratios range from 0.1 -2 keV and increase with ionization potential. Expansion velocities inferredfrom X-ray line profiles range from 300 - 1700 km/s, much less than thevelocities inferred from the radial expansion of the radio and X-ray images. Wecan account for these observations with a scenario in which the X-rays areemitted by shocks produced where the supernova blast wave strikes denseprotrusions of the inner circumstellar ring, which are also responsible for theoptical hot spots.Comment: 12 pages, 3 figures, accepted for publication in ApJ

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research