Chandra observation of the magellanic cloud supernova remnant 0454-67.2 in N9

F. D. Seward, R. M. Williams, Y. H. Chu, J. R. Dickel, R. C. Smith, S. D. Points

Research output: Contribution to journalArticlepeer-review


A Chandra observation has defined the extent of the SNR 0454-67.2 in the LMC H II region N9. The remnant has dimension 2.′3 × 3.′6 and is elongated in the north-south direction. The brightest emission comes from a north-south central ridge that includes three bright patches. There is good agreement between X-ray and [O II] and [S II] morphology. The remnant is old enough so that optical data give more information about dynamics than do the X-ray data. The supernova (SN) energy release was ≥5 × 1050 ergs, and the age is ∼3 × 104 yr. There are several unresolved sources nearby, but none are clearly associated with the remnant. The X-ray spectrum is soft and indicates enhanced Fe abundance in the central region, consistent with a Type Ia SN origin, but a Type II origin cannot be ruled out.

Original languageEnglish (US)
Pages (from-to)327-334
Number of pages8
JournalAstrophysical Journal
Issue number1 I
StatePublished - Mar 20 2006


  • ISM: Individual (SNR 0454-67.2)
  • Supernova remnants
  • X-rays: ISM

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


Dive into the research topics of 'Chandra observation of the magellanic cloud supernova remnant 0454-67.2 in N9'. Together they form a unique fingerprint.

Cite this