BROADBAND SPECTROSCOPY USING TWO SUZAKU OBSERVATIONS OF THE HMXB GX 301-2

Suchy S, Fürst F, Pottschmidt K, Caballero I, Kreykenbohm I, Wilms J, Markowitz A, Rothschild RE (2012)


Publication Status: Published

Publication Type: Journal article

Publication year: 2012

Journal

Publisher: IOP PUBLISHING LTD

Book Volume: 745

Article Number: ARTN 124

Journal Issue: 2

DOI: 10.1088/0004-637X/745/2/124

Abstract

We present the analysis of two Suzaku observations of GX 301-2 at two orbital phases after the periastron passage. Variations in the column density of the line-of-sight absorber are observed, consistent with accretion from a clumpy wind. In addition to a cyclotron resonance scattering feature (CRSF), multiple fluorescence emission lines were detected in both observations. The variations in the pulse profiles and the CRSF throughout the pulse phase have a signature of a magnetic dipole field. Using a simple dipole model we calculated the expected magnetic field values for different pulse phases and were able to extract a set of geometrical angles, loosely constraining the dipole geometry in the neutron star. From the variation of the CRSF width and energy, we found a geometrical solution for the dipole, making the inclination consistent with previously published values.

Authors with CRIS profile

Involved external institutions

How to cite

APA:

Suchy, S., Fürst, F., Pottschmidt, K., Caballero, I., Kreykenbohm, I., Wilms, J.,... Rothschild, R.E. (2012). BROADBAND SPECTROSCOPY USING TWO SUZAKU OBSERVATIONS OF THE HMXB GX 301-2. Astrophysical Journal, 745(2). https://dx.doi.org/10.1088/0004-637X/745/2/124

MLA:

Suchy, Slawomir, et al. "BROADBAND SPECTROSCOPY USING TWO SUZAKU OBSERVATIONS OF THE HMXB GX 301-2." Astrophysical Journal 745.2 (2012).

BibTeX: Download