Miller-Jones, J.C.A.

Russell, T.D.

Sivakoff, G.R.

Tetarenko, A.J.

English

Following the recent detection of a new outburst from the Galactic black hole X-ray transient GX 339-4 (ATel #10797, #10798), we triggered target of opportunity radio observations of the source with the Australia Telescope Compact Array (ATCA)

International Migration, Integration and Social Cohesion online publications

UvA-DARE is a service provided by the library of the University of Amsterdam (https://dare.uva.nl)UvA-DARE (Digital Academic Repository)Radio detection of GX 339-4 in its latest outburstRussell, T.D.; Tetarenko, A.J.; Sivakoff, G.R.; Miller-Jones, J.C.A.; JACPOT XRBcollaborationPublication date2017Document VersionFinal published versionPublished inThe astronomer's telegramLicenseUnspecifiedLink to publicationCitation for published version (APA):Russell, T. D., Tetarenko, A. J., Sivakoff, G. R., Miller-Jones, J. C. A., & JACPOT XRBcollaboration (2017). Radio detection of GX 339-4 in its latest outburst. The astronomer'stelegram, 10808. http://www.astronomerstelegram.org/?read=10808General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s)and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an opencontent license (like Creative Commons).Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, pleaselet the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the materialinaccessible and/or remove it from the website. Please Ask the Library: https://uba.uva.nl/en/contact, or a letterto: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. Youwill be contacted as soon as possible.Download date:09 Mar 2023ATel #10808: Radio detection of GX 339-4 in its latest outbursthttp://www.astronomerstelegram.org/?read=10808[22-10-2018 13:02:39]OutsideGCNIAUCsOther ATel on Twitter and FacebookATELstreamATel Community SitePost | Search | PoliciesCredential | Feeds | Email22 Oct 2018; 11:02 UTThis space for free for your conference.[ Previous | Next | ADS  ]Radio detection of GX 339-4 in its latest outburstATel #10808; T. D. Russell (UvA), A. J. Tetarenko (UAlberta), G. R. Sivakoff (UAlberta), J. C.A. Miller-Jones (ICRAR-Curtin), and the JACPOT XRB collaborationon 2 Oct 2017; 21:22 UTCredential Certification: Thomas Russell (t.d.russell@uva.nl)Subjects: Radio, X-ray, Black Hole, TransientReferred to by ATel #: 10820, 10825, 11208Tweet  Following the recent detection of a new outburst from the Galactic black hole X-ray transient GX339-4 (ATel #10797, #10798), we triggered target of opportunity radio observations of the sourcewith the Australia Telescope Compact Array (ATCA).We observed GX 339-4 between 03:59 and 08:22 UT on 2017 September 30 (MJD 58026.26 +/-0.09). Observations were taken at 5.5, 9.0, 17.0 and 19.0 GHz, with a bandwidth of 2 GHz at eachfrequency. The array was in its compact H168 configuration, providing angular resolutions of48"x35", 29"x22", 16"x13" and 14"x12" at 5.5, 9.0, 17.0 and 19.0 GHz, respectively. Flux andbandpass calibration was done with 1934-638, while 1646-50 was used as the phase calibrator.The data were reduced and imaged (with a natural weighting) following standard procedures inCASA (McMullin et al., 2007). We fit a point source in the image plane to measure the target'sflux density.We significantly detect a radio source at the position of GX 339-4 with flux densities of 1.14 +/-0.06 mJy at 5.5GHz, 1.24 +/- 0.04 mJy at 9GHz, 1.53 +/- 0.04 at 17 mJy, and 1.51 +/- 0.05 mJy at19GHz (statistical errors only). The radio spectral index of alpha = 0.26 +/- 0.05 (where S_nu ∝nualpha) is consistent with emission from a compact radio jet.Assuming a distance of 8 kpc, our radio detection provides a 5.5GHz radio luminosity of (4.8 +/-0.3)e29*(d/8 kpc)2 erg/s. Roughly fitting an absorbed powerlaw model to Swift/XRTobservations of GX 339-4 taken ~24 hours before and ~24 hours after our ATCA observations,we determine an X-ray luminosity of between 4.6e35 and 1.0e36 erg/s (d/8 kpc)2 erg/s (0.3-10keV). We fit absorption column densities of about N_H= 7(+4,-3)e21 and 6(+3,-2)e21 cm-2, aswell as photon indices of Gamma = 1.6(+0.4,-0.3) and 1.3(+0.3,-0.2), for the September 29 andOctober 1 X-ray observations. These radio and X-ray measurements are consistent with thestandard radio/X-ray correlation of this source in the hard state (Corbel et al. 2013, MNRAS, 428,2500).Related11208 Swift XRT observes GX 339-4in the hard state in Jan 201810864 SALT high resolutionspectroscopy of GX339-4 inoutburst10825 NuSTAR Observation of GX339-4 in the early stages ofits 2017 outburst10824 NICER Observation of FastX-ray Flares in GX 339-410820 Sub-second optical flaring inGX 339-4 during the 2017outburst early rise10808 Radio detection of GX 339-4in its latest outburst10798 X-ray brightening of GX 339-4 in late September 201710797 New outburst of GX 339-4detected by FaulkesTelescope South7977 SMARTS optical re-brightening of GX 339-47962 GX 339-4 in transition backto the hard state after a longoutburst7649 GX 339-4 has entered theintermediate state7434 GX 339-4 is still in the softstate7201 GX 339-4 has left the softstate and possibly enteredthe intermediate state7009 Soft state of GX 339-4 in its2014-2015 outburst6960 Possible ongoing hard-to-soft transition of GX 339-46649 Swift/BAT detects of a newX-ray outburst of GX 339-44247 The rapid extreme fading ofGX 339-44162 GX 339-4 is rising intooutburst, and a deep opticalquiescent magnitudeobserved by FaulkesTelescope South3383 GX 339-4 is back in a faintstate close to quiescence3191 GX 339-4 back in the hardstate: optical observationsreveal the return of the jet3117 GX 339-4 in transitiontowards hard states2871 Aql X-1 in brightest outburstsince 20032593 Multiple fast state transitionsRecommend 2ATel #10808: Radio detection of GX 339-4 in its latest outbursthttp://www.astronomerstelegram.org/?read=10808[22-10-2018 13:02:39]The JACPOT XRB collaboration are planning further observations of this source. Furthermultiwavelength observations are encouraged.We thank Jamie Stevens and the ATNF staff for rapid scheduling of these observations.in GX 339-42577 Transition to the soft state inGX 339-42573 Simultaneous INTEGRAL,RXTE, Swift and FT Southobservations of thetransition of GX 339-42556 Three Harmonics of X-rayQuasi-periodic Oscillationseen in Swift/XRT andRXTE/PCA Observations ofGX 339-42547 Optical/IR flux fading rapidlyin GX 339-4: OIR jetquenching2545 GX 339-4 in transition fromthe hard state2525 Observations with the ATCAof the brightest known radiohard state in GX 339-42523 GX 339-4 variabilityevolution observed by RXTEsuggests the start of aspectral transition2459 Optical Observations of GX339-4 in Outburst with theFaulkes Telescope South2455 INTEGRAL observes anincreasing Hard X-ray flux ofGX 339-42384 RXTE observes hard stateactivity from GX 339-42380 MAXI/GSC detection of an X-ray activity from GX 339-42281 A recent Swift/XRTobservation of GX 339-4during its faint optical flux2270 GX 339-4 ApproachingQuiescence ?1962 Optical photometry andpolarimetry of GX 339-4during its outburst rise1960 MOST Observations of GX339-41954 Renewed activity from GX399-41945 Recent PCA Measurementsof SAX J1747.0-2853 and GX339-41588 Recent Swift XRTObservations of GX 339-41586 Unusual optical and X-rayflaring activity in GX 339-41027 Latest optical and infraredobservations of GX 339-4968 Swift-BAT detects a brighthard X-ray outburst from GX339-4[ Telegram Index ]R. E. Rutledge, Editor-in-ChiefDerek Fox, EditorMansi M. Kasliwal, Co-Editor

Radio detection of GX 339-4 in its latest outburst

https://pure.uva.nl/ws/files/29403748/Radio_detection_of_GX_339_4_in_its_latest_outburst.pdf

Radio detection of GX 339-4 in its latest outburst

Abstract

Similar works

Full text

Available Versions

International Migration, Integration and Social Cohesion online publications