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The transient neutron star X-ray binary KS 1741–293 in outburst and quiescence

Published online by Cambridge University Press:  21 February 2013

N. Degenaar  and
R. Wijnands
N. Degenaar
Affiliation:
University of Michigan, Dept. of Astronomy, 500 Church St, Ann Arbor, MI 48109, USA email: [email protected]
R. Wijnands
Affiliation:
Astronomical Institute “Anton Pannekoek”, University of Amsterdam Postbus 94249, 1090 GE Amsterdam, The Netherlands email: [email protected]
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Abstract

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KS 1741–293 is a transient neutron star low-mass X-ray binary that is located at an angular distance of ≃20′ from the Galactic center. We map out the historic activity of the source since its discovery in 1989, characterize its most recent X-ray outbursts observed with Swift (2007, 2008, 2010, and 2011), and discuss its quiescent X-ray properties using archival Chandra data. KS 1741–293 is frequently active, exhibiting outbursts that typically reach a 2–10 keV luminosity of LX ≃ 1036 (D/6.2 kpc)2 erg s−1 and last for several weeks–months. However, Swift also captured a very short and weak accretion outburst that had a duration of ≲4 days and did not reach above LX ≃ 5×1034 (D/6.2 kpc)2 erg s−1. The source is detected in quiescence with Chandra at a 2–10 keV luminosity of LX ≃ 2.5×1032 (D/6.2 kpc)2 erg s−1.

Keywords

Accretionaccretion disksstars: neutronX-rays: binariesX-rays: individual (KS 1741–293)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 113 - 116
Copyright
Copyright © International Astronomical Union 2013

References

Barthelmy, S. D., Campana, S., D'Elia, V., et al. 2011, GRB Coordinates Network, 12319Google Scholar
Chelovekov, I. V. & Grebenev, S. A. 2011, Astronomy Letters, 37, 597CrossRefGoogle Scholar
Chenevez, J., Brandt, S., Kuulkers, E., et al. 2011, The Astronomer's Telegram, 3646Google Scholar
Chenevez, J., Kuulkers, E., Alfonso-Garzón, J., et al. 2010, The Astronomer's Telegram, 2465Google Scholar
de Cesare, G., Bazzano, A., Martínez Núñez, S., et al. 2007, MNRAS, 380, 615CrossRefGoogle Scholar
Degenaar, N. & Wijnands, R. 2008, The Astronomer's Telegram, 1541Google Scholar
Degenaar, N. & Wijnands, R. 2009, A&A, 495, 547Google Scholar
Degenaar, N. & Wijnands, R. 2010, A&A, 524, A69Google Scholar
Degenaar, N., Wijnands, R., Cackett, E. M., et al. 2012, A&A, 545, A49Google Scholar
Degenaar, N., Wijnands, R., & Muno, M. 2008, The Astronomer's Telegram, 1531Google Scholar
Evans, P. A., Beardmore, A. P., Page, K. L., et al. 2009, MNRAS, 397, 1177Google Scholar
Fridriksson, J. K., Homan, J., Wijnands, R., et al. 2011, ApJ, 736, 162Google Scholar
Galloway, D. K., Muno, M. P., Hartman, et al. 2008, ApJS, 179, 360Google Scholar
in 't Zand, J., Heise, J., Smith, M., et al. 1998, IAU Circ., 6840, 2Google Scholar
in 't Zand, J. J. M., Heise, J., Brinkman, A. C., et al. 1991, Adv. Space Res., 11, 187CrossRefGoogle Scholar
Kuulkers, E., Shaw, S. E., Paizis, A., et al. 2007, A&A, 466, 595Google Scholar
Linares, M., Chakrabarty, D., Cummings, J. R., et al. 2011, The Astronomer's Telegram, 3632Google Scholar
Muno, M. P., Bauer, F. E., Baganoff, F. K., et al. 2009, ApJS, 181, 110Google Scholar
Sakano, M., Koyama, K., Murakami, , et al. 2002, ApJS, 138, 19Google Scholar
Sidoli, L., Belloni, T., & Mereghetti, S. 2001, A&A, 368, 835Google Scholar
Sidoli, L., Mereghetti, S., Israel, G. L., et al. 1999, ApJ, 525, 215Google Scholar
Wijnands, R., in 't Zand, J. J. M., Rupen, M., et al. 2006, A&A, 449, 1117Google Scholar
Yuasa, T., Tamura, K., Nakazawa, K., et al. 2008, PASJ, 60, 207Google Scholar