On-going radio flare in Aql X-1

Details On-going radio flare in Aql X-1 On-going radio flare in Aql X-1

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004atel..286....1r&link_type=abstract

The Astronomer's Telegram, #286

Astronomy and Astrophysics

Astronomy

7

Radio, Infra-Red, Optical, X-Ray, Binaries, Neutron Stars, Transients, Variables

Scientific paper

Very Large Array (VLA) observations of the transient neutron star X-ray binary system Aql X-1, currently active at X-ray, optical, and infrared wavelengths (ATEL #259, #260, #279, #280), show that a faint radio outburst is also underway. Our 8.46 GHz observations gave the following nominal flux densities at the location of the source: Non-detections: 9 March 2004: 70 +/- 60 microJy/beam 13 March 2004: 19 +/- 47 microJy/beam 21 March 2004: 53 +/- 61 microJy/beam 27 March 2004: 11 +/- 54 microJy/beam 2 April 2004: -17 +/- 120 microJy/beam Detections: 19 May 2004: 210 +/- 50 microJy/beam 26 May 2004: 214 +/- 35 microJy/beam Combining all the March data gave a nominal value of 26 +/- 28 microJy/beam at this frequency.

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