Multiwavelength studies of PSR J1420-6048, a young pulsar in the kookaburra

Mallory S.E. Roberts, Roger W. Romani, Simon Johnston

Research output: Contribution to journalArticlepeer-review


We present X-ray, radio, and infrared observations of the 68 ms pulsar PSR J1420-6048 and its surrounding nebula, a possible counterpart of the γ-ray source GeV J1417-6100/3EG J1420-6038. Pulsed X-ray emission at the radio period is marginally detected by ASCA from a source embedded in the hard-spectrum X-ray nebula AX J1420.1-6049. At radio wavelengths, the pulsar is found to be strongly linearly and circularly polarized, and the polarization sweep is measured. A comparison of high-resolution Australia Telescope Compact Array radio imaging of the Kookaburra's upper wing (G313.6+0.3), which contains the pulsar and the X-ray nebula, with infrared images suggests the radio emission is partly nonthermal.

Original languageEnglish (US)
Pages (from-to)L187-L190
JournalAstrophysical Journal
Issue number2 PART II
StatePublished - 2001


  • Pulsars: Individual (PSR J1420-6048)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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