Initial low/hard state, multiple jet ejections and X-ray/radio correlations during the outburst of XTE J1859+226

C Brocksopp; R P Fender; M McCollough; G G Pooley; M P Rupen; R M Hjellming; C J de la Force; R E Spencer; T W B Muxlow; S T Garrington; S Trushkin

Initial low/hard state, multiple jet ejections and X-ray/radio correlations during the outburst of XTE J1859+226

C Brocksopp, R P Fender, M McCollough, G G Pooley, M P Rupen, R M Hjellming, C J de la Force, R E Spencer, T W B Muxlow, S T Garrington, S Trushkin

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Abstract

We have studied the 1999 soft X-ray transient outburst of XTE J1859+226 at radio and X-ray wavelengths. The event was characterized by strong variability in the disc, corona and jet - in particular, a number of radio flares (ejections) took place and seemed well-correlated with hard X-ray events. Apparently unusual for the canonical `soft' X-ray transient, there was an initial period of low/hard state behaviour during the rise from quiescence but prior to the peak of the main outburst - we show that not only could this initial low/hard state be a ubiquitous feature of soft X-ray transient outbursts, but also it could be extremely important in our study of outburst mechanisms.

Original language	English
Pages (from-to)	765-775
Number of pages	11
Journal	Monthly Notices of the Royal Astronomical Society
Volume	331
Publication status	Published - 2002

Keywords

accretion
accretion discs
stars: individual: XTE J1859+226
X-rays: stars

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http://adsabs.harvard.edu/abs/2002MNRAS.331..765B

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Brocksopp, C., Fender, R. P., McCollough, M., Pooley, G. G., Rupen, M. P., Hjellming, R. M., de la Force, C. J., Spencer, R. E., Muxlow, T. W. B., Garrington, S. T., & Trushkin, S. (2002). Initial low/hard state, multiple jet ejections and X-ray/radio correlations during the outburst of XTE J1859+226. Monthly Notices of the Royal Astronomical Society, 331, 765-775. http://adsabs.harvard.edu/abs/2002MNRAS.331..765B

@article{b721ae6a858542159ca56224f207cd88,

title = "Initial low/hard state, multiple jet ejections and X-ray/radio correlations during the outburst of XTE J1859+226",

abstract = "We have studied the 1999 soft X-ray transient outburst of XTE J1859+226 at radio and X-ray wavelengths. The event was characterized by strong variability in the disc, corona and jet - in particular, a number of radio flares (ejections) took place and seemed well-correlated with hard X-ray events. Apparently unusual for the canonical `soft' X-ray transient, there was an initial period of low/hard state behaviour during the rise from quiescence but prior to the peak of the main outburst - we show that not only could this initial low/hard state be a ubiquitous feature of soft X-ray transient outbursts, but also it could be extremely important in our study of outburst mechanisms.",

keywords = "accretion, accretion discs, stars: individual: XTE J1859+226, X-rays: stars",

author = "C Brocksopp and Fender, {R P} and M McCollough and Pooley, {G G} and Rupen, {M P} and Hjellming, {R M} and {de la Force}, {C J} and Spencer, {R E} and Muxlow, {T W B} and Garrington, {S T} and S Trushkin",

year = "2002",

language = "English",

volume = "331",

pages = "765--775",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "1365-2966",

publisher = "Oxford University Press",

}

Brocksopp, C, Fender, RP, McCollough, M, Pooley, GG, Rupen, MP, Hjellming, RM, de la Force, CJ, Spencer, RE, Muxlow, TWB, Garrington, ST & Trushkin, S 2002, 'Initial low/hard state, multiple jet ejections and X-ray/radio correlations during the outburst of XTE J1859+226', Monthly Notices of the Royal Astronomical Society, vol. 331, pp. 765-775. <http://adsabs.harvard.edu/abs/2002MNRAS.331..765B>

TY - JOUR

T1 - Initial low/hard state, multiple jet ejections and X-ray/radio correlations during the outburst of XTE J1859+226

AU - Brocksopp, C

AU - Fender, R P

AU - McCollough, M

AU - Pooley, G G

AU - Rupen, M P

AU - Hjellming, R M

AU - de la Force, C J

AU - Spencer, R E

AU - Muxlow, T W B

AU - Garrington, S T

AU - Trushkin, S

PY - 2002

Y1 - 2002

N2 - We have studied the 1999 soft X-ray transient outburst of XTE J1859+226 at radio and X-ray wavelengths. The event was characterized by strong variability in the disc, corona and jet - in particular, a number of radio flares (ejections) took place and seemed well-correlated with hard X-ray events. Apparently unusual for the canonical `soft' X-ray transient, there was an initial period of low/hard state behaviour during the rise from quiescence but prior to the peak of the main outburst - we show that not only could this initial low/hard state be a ubiquitous feature of soft X-ray transient outbursts, but also it could be extremely important in our study of outburst mechanisms.

AB - We have studied the 1999 soft X-ray transient outburst of XTE J1859+226 at radio and X-ray wavelengths. The event was characterized by strong variability in the disc, corona and jet - in particular, a number of radio flares (ejections) took place and seemed well-correlated with hard X-ray events. Apparently unusual for the canonical `soft' X-ray transient, there was an initial period of low/hard state behaviour during the rise from quiescence but prior to the peak of the main outburst - we show that not only could this initial low/hard state be a ubiquitous feature of soft X-ray transient outbursts, but also it could be extremely important in our study of outburst mechanisms.

KW - accretion

KW - accretion discs

KW - stars: individual: XTE J1859+226

KW - X-rays: stars

M3 - Article

SN - 1365-2966

VL - 331

SP - 765

EP - 775

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

Initial low/hard state, multiple jet ejections and X-ray/radio correlations during the outburst of XTE J1859+226

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Keywords

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