Multiwavelength observations revealing the outbursts of the two soft X-ray transients XTE J1859+226 and XTE J1118+480

S. Chaty; C. A. Haswell; R. I. Hynes; C. R. Shrader; W. Cui; C. W. Mauche; A. J. Norton; J. E. Solheim; R. Ostensen; T. R. Geballe; Z. Ioannou; A. R. King

Multiwavelength observations revealing the outbursts of the two soft X-ray transients XTE J1859+226 and XTE J1118+480

S. Chaty, C. A. Haswell, R. I. Hynes, C. R. Shrader, W. Cui, C. W. Mauche, A. J. Norton, J. E. Solheim, R. Ostensen, T. R. Geballe, Z. Ioannou, A. R. King

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

We report here on multiwavelength observations of the two new soft X-ray transients (SXTs) XTE J1859+226 and XTE J1118+480, which we observed with HST/RXTE/UKIRT. For XTE J1118+480 we also used EUVE since it is located at a very high galactic latitude and suffers from very low extinction. The two sources exhibited very different behaviour. XTE J1859+226 seems quite normal and therefore a good object for testing the accretion mechanisms in place during the outbursts, XTE J1118+480 is much more unusual because it exhibits i) a low X-ray to optical ratio and ii) a strong non-thermal contribution in the radio to optical domain, which is likely to be due to synchrotron emission. We concentrate here on the near-infrared (NIR) and optical observations of these two systems.

Original language	English
Title of host publication	European Space Agency, (Special Publication) ESA SP
Pages	491-494
Number of pages	4
Edition	459
Publication status	Published - Sep 2001
Event	4th Integral Workshop -Exploring the Gamma-Ray Universe-2000 - Alicante, Spain Duration: Sep 4 2000 → Sep 8 2000

Other

Other	4th Integral Workshop -Exploring the Gamma-Ray Universe-2000
Country	Spain
City	Alicante
Period	9/4/00 → 9/8/00

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Keywords

Infrared: stars
Stars: individual: XTE J1859+226
X-rays: stars
XTE J1118+480

ASJC Scopus subject areas

Aerospace Engineering

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Chaty, S., Haswell, C. A., Hynes, R. I., Shrader, C. R., Cui, W., Mauche, C. W., ... King, A. R. (2001). Multiwavelength observations revealing the outbursts of the two soft X-ray transients XTE J1859+226 and XTE J1118+480. In European Space Agency, (Special Publication) ESA SP (459 ed., pp. 491-494)

Multiwavelength observations revealing the outbursts of the two soft X-ray transients XTE J1859+226 and XTE J1118+480. / Chaty, S.; Haswell, C. A.; Hynes, R. I.; Shrader, C. R.; Cui, W.; Mauche, C. W.; Norton, A. J.; Solheim, J. E.; Ostensen, R.; Geballe, T. R.; Ioannou, Z.; King, A. R.

European Space Agency, (Special Publication) ESA SP. 459. ed. 2001. p. 491-494.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chaty, S, Haswell, CA, Hynes, RI, Shrader, CR, Cui, W, Mauche, CW, Norton, AJ, Solheim, JE, Ostensen, R, Geballe, TR, Ioannou, Z & King, AR 2001, Multiwavelength observations revealing the outbursts of the two soft X-ray transients XTE J1859+226 and XTE J1118+480. in European Space Agency, (Special Publication) ESA SP. 459 edn, pp. 491-494, 4th Integral Workshop -Exploring the Gamma-Ray Universe-2000, Alicante, Spain, 9/4/00.

Chaty, S. ; Haswell, C. A. ; Hynes, R. I. ; Shrader, C. R. ; Cui, W. ; Mauche, C. W. ; Norton, A. J. ; Solheim, J. E. ; Ostensen, R. ; Geballe, T. R. ; Ioannou, Z. ; King, A. R. / Multiwavelength observations revealing the outbursts of the two soft X-ray transients XTE J1859+226 and XTE J1118+480. European Space Agency, (Special Publication) ESA SP. 459. ed. 2001. pp. 491-494

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title = "Multiwavelength observations revealing the outbursts of the two soft X-ray transients XTE J1859+226 and XTE J1118+480",

abstract = "We report here on multiwavelength observations of the two new soft X-ray transients (SXTs) XTE J1859+226 and XTE J1118+480, which we observed with HST/RXTE/UKIRT. For XTE J1118+480 we also used EUVE since it is located at a very high galactic latitude and suffers from very low extinction. The two sources exhibited very different behaviour. XTE J1859+226 seems quite normal and therefore a good object for testing the accretion mechanisms in place during the outbursts, XTE J1118+480 is much more unusual because it exhibits i) a low X-ray to optical ratio and ii) a strong non-thermal contribution in the radio to optical domain, which is likely to be due to synchrotron emission. We concentrate here on the near-infrared (NIR) and optical observations of these two systems.",

keywords = "Infrared: stars, Stars: individual: XTE J1859+226, X-rays: stars, XTE J1118+480",

author = "S. Chaty and Haswell, {C. A.} and Hynes, {R. I.} and Shrader, {C. R.} and W. Cui and Mauche, {C. W.} and Norton, {A. J.} and Solheim, {J. E.} and R. Ostensen and Geballe, {T. R.} and Z. Ioannou and King, {A. R.}",

year = "2001",

month = "9",

language = "English",

pages = "491--494",

booktitle = "European Space Agency, (Special Publication) ESA SP",

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AU - Chaty, S.

AU - Haswell, C. A.

AU - Hynes, R. I.

AU - Shrader, C. R.

AU - Cui, W.

AU - Mauche, C. W.

AU - Norton, A. J.

AU - Solheim, J. E.

AU - Ostensen, R.

AU - Geballe, T. R.

AU - Ioannou, Z.

AU - King, A. R.

PY - 2001/9

Y1 - 2001/9

N2 - We report here on multiwavelength observations of the two new soft X-ray transients (SXTs) XTE J1859+226 and XTE J1118+480, which we observed with HST/RXTE/UKIRT. For XTE J1118+480 we also used EUVE since it is located at a very high galactic latitude and suffers from very low extinction. The two sources exhibited very different behaviour. XTE J1859+226 seems quite normal and therefore a good object for testing the accretion mechanisms in place during the outbursts, XTE J1118+480 is much more unusual because it exhibits i) a low X-ray to optical ratio and ii) a strong non-thermal contribution in the radio to optical domain, which is likely to be due to synchrotron emission. We concentrate here on the near-infrared (NIR) and optical observations of these two systems.

AB - We report here on multiwavelength observations of the two new soft X-ray transients (SXTs) XTE J1859+226 and XTE J1118+480, which we observed with HST/RXTE/UKIRT. For XTE J1118+480 we also used EUVE since it is located at a very high galactic latitude and suffers from very low extinction. The two sources exhibited very different behaviour. XTE J1859+226 seems quite normal and therefore a good object for testing the accretion mechanisms in place during the outbursts, XTE J1118+480 is much more unusual because it exhibits i) a low X-ray to optical ratio and ii) a strong non-thermal contribution in the radio to optical domain, which is likely to be due to synchrotron emission. We concentrate here on the near-infrared (NIR) and optical observations of these two systems.

KW - Infrared: stars

KW - Stars: individual: XTE J1859+226

KW - X-rays: stars

KW - XTE J1118+480

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AN - SCOPUS:0035463765

SP - 491

EP - 494

BT - European Space Agency, (Special Publication) ESA SP

T2 - 4th Integral Workshop -Exploring the Gamma-Ray Universe-2000

Y2 - 4 September 2000 through 8 September 2000

ER -

Multiwavelength observations revealing the outbursts of the two soft X-ray transients XTE J1859+226 and XTE J1118+480

Abstract

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Keywords

ASJC Scopus subject areas

Cite this

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