G359.87+0.18: A young supernova remnant candidate near the Galactic center?

F. Yusef-Zadeh*, W. D. Cotton, S. P. Reynolds

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Subarcsecond radio continuum observations of the Galactic center region at λ = 6 and 2 cm reveal a 0″.5 diameter source with a shell-like morphology. This source is linearly polarized at a level of 16% at 6 cm and has a steep nonthermal spectrum with a spectral index of 1.6 between 6 and 2 cm. The distance to this source is not known, but the large rotation measure value of 3000 rad m-2 suggests that G359.87+0.18 is likely to be located in the inner Galaxy or at an extragalactic distance. We discuss possible interpretations of this object as a recent supernova, a very young supernova remnant, a nova remnant, or an extragalactic source. All possibilities are highly problematic.

Original languageEnglish (US)
Pages (from-to)L55-L58
JournalAstrophysical Journal
Issue number1 PART II
StatePublished - 1998


  • Galaxies: ISM
  • Galaxy: center
  • ISM: magnetic fields
  • Supernova remnants

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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