1999/07/08 by B. M. Gaensler, B. W. Stappers, T. J. Getts +1 · 4 citations
Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Flux (metallurgy) #Gamma-ray bursts and supernovae #Luminosity #Millisecond #Millisecond pulsar #Monochromatic color #Optics #Physics #Pulsar #Pulsars and Gravitational Waves Research #Telescope #astro-ph
paper · pdf · doi:10.1086/312238
6 pages, uses emulateapj.sty, one embedded PS figure. Accepted to ApJ Letters
arxiv created 1999/07/08 · openalex publication_date 1999/09/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on the detection of radio emission from the accretion-powered X-ray millisecond pulsar SAX J1808.4-3658, using the Australia Telescope Compact Array. We detected an ~0.8 mJy source at the position of SAX J1808.4-3658 on 1998 April 27, approximately 1 day after the onset of a rapid decline in the X-ray flux; no such source was seen on the previous day. We consider this emission to be related to the radio emission from other X-ray binaries, and it is most likely associated with an ejection of material from the system. No radio emission was detected at later epochs, indicating that if SAX J1808.4-3658 is a radio pulsar during X-ray quiescence, then its monochromatic luminosity must be less than L 1.4 GHz ~ 6 mJy kpc 2 .