Hostname: page-component-cc8bf7c57-77pjf Total loading time: 0 Render date: 2024-12-12T06:39:16.375Z Has data issue: false hasContentIssue false

Recent Observations of X-ray Emission from Galactic Binary Neutron Stars

Published online by Cambridge University Press:  25 May 2016

J. Swank*
Affiliation:
NASA/Goddard Space Flight Center, Code 662, Greenbelt, MD 20771, U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Recent measurements of young, accreting binary neutron stars are determining more precise magnetic field and accretion parameters. A low magnetic field, accreting, millisecond pulsar has finally been found in a binary burster. At least 20 low-mass binaries have exhibited high frequency oscillations, 300–1200 hertz. The majority have, for some range of luminosity, the pair of quasiperiodic oscillations that have never been seen in a black hole candidate. Recent evidence from burst oscillations strengthens the case that the difference frequency of this pair is close to the spin frequency of the neutron star. These oscillations are correlated with the spectra, luminosity, and low frequency oscillations. Quasiperiodic oscillations are also seen sometimes in strong magnetic field pulsars, where their origin can be closely examined.

Type
Part I: Talks
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Chakrabarty, D., & Morgan, E. H. 1998, Nature, 394, 346.Google Scholar
Dal Fiume, D., et al. 1999, Adv. Space Res., in press.Google Scholar
Finger, M. H. 1998, Adv. Space Res., 22, 1007.Google Scholar
Ford, E.C., & van der Klis, M. 1998, ApJ, 506, L39.Google Scholar
Ford, E. C., van der Klis, M., Mendez, M., van Paradijs, J., & Kaaret, P. 1999, ApJ, 512, L31.Google Scholar
Heindl, W. A., Coburn, W., Gruber, D. E., Pelling, M. R., Rothschild, R. E., Wilms, J., Pottschmitdt, K., & Staubert, R. 1999, ApJ, 521, L49.Google Scholar
in't Zand, J. J. M., Heise, J., Muller, J. M., Bazzano, A., Cocchi, M., Natallucci, L., & Ubertini, P. 1998, A&A, 331, L25.Google Scholar
Jernigan, J. G., Klein, R. I., & Arons, J. 2000, ApJ, in press.Google Scholar
Kaaret, P., Piraino, S., Bloser, P. F., Ford, E. C., Grindlay, J. E., Santangelo, A., Smale, A. P., & Zhang, W. 1999, ApJ, 520, L37.Google Scholar
Kommers, J. M., Chakrabarty, D., & Lewin, W. H. G. 1998, ApJ, 497, L33.Google Scholar
Marshall, F. E. 1998, in IAU Circ. 6876, ed. Green, D. W. E. Google Scholar
Mendez, M. 1999, in Proc. 19th Texas Symp. on Relativistic Astrophysics and Cosmology, eds. Paul, J., Montmerle, T., & Aubourg, E. (Paris: World Scientific Press), in press.Google Scholar
Mihara, T., Makishima, K., & Nagase, F. 1998, Adv. Space Res., 22, 987.Google Scholar
Miller, M. C. 1999, ApJ, 515, L77.Google Scholar
Miller, M. C., Lamb, F. K., & Psaltis, D. 1998, ApJ, 508, 791.Google Scholar
Santangelo, A., et al. 1999, ApJ, 523, L85.Google Scholar
Stella, L., & Vietri, M. 1998, ApJ, 492, L59.Google Scholar
Stella, L., & Vietri, M. 1999, Phys. Rev. Lett., 82, 17.Google Scholar
Strohmayer, T. E., & Markwardt, C. B. 1999, ApJ, 516, L81.Google Scholar
Strohmayer, T. E., Zhang, W., & Swank, J. H. 1997, ApJ, 487, L77.Google Scholar
Titarchuk, L., Oscherovich, V., & Kuzntzov, S. 1999, ApJ, 525, L129.Google Scholar
Trümper, J., Pietsch, W., Reppin, C., Voges, W. Staubert, R., & Kendziorra, E. 1978, ApJ, 219, L105.Google Scholar
White, N. E., & Zhang, W. 1997, ApJ, 490, 87.Google Scholar
Wijnands, R., & van der Klis, M. 1997, in Accretion Processes in Astrophysics: Some Like it Hot!, eds. Holt, S. S. & Kallman, T. R. (New York: AIP), 381.Google Scholar
Wijnands, R., & van der Klis, M. 1998, Nature, 394, 344.Google Scholar
Zhang, W., Swank, J. H., & Strohmayer, T. E. 1997, ApJ, 482, L167.Google Scholar