Detection of Reflection Features in the Neutron Star Low-mass X-Ray Binary Serpens X-1 with NICER

R. M. Ludlam, J. M. Miller, Z. Arzoumanian, P. M. Bult, E. M. Cackett, D. Chakrabarty, T. Enoto, A. C. Fabian, K. C. Gendreau, S. Guillot, J. Homan, G. K. Jaisawal, L. Keek, B. La Marr, C. Malacaria, C. B. Markwardt, J. F. Steiner, T. E. Strohmayer

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Abstract

We present Neutron Star Interior Composition Explorer (NICER) observations of the neutron star (NS) low-mass X-ray binary Serpens X-1 during the early mission phase in 2017. With the high spectral sensitivity and low-energy X-ray passband of NICER, we are able to detect the Fe L line complex in addition to the signature broad, asymmetric Fe K line. We confirm the presence of these lines by comparing the NICER data to archival observations with XMM-Newton/Reflection Grating Spectrometer (RGS) and NuSTAR.
Original languageEnglish
Article numberL5
JournalAstrophysical Journal Letters
Volume858
Issue number1
Number of pages6
ISSN2041-8205
DOIs
Publication statusPublished - 2018

Keywords

  • Accretion
  • Accretion disks
  • Stars: individual (Ser X-1)
  • Stars: neutron
  • X-rays: binaries

Cite this

Ludlam, R. M., Miller, J. M., Arzoumanian, Z., Bult, P. M., Cackett, E. M., Chakrabarty, D., Enoto, T., Fabian, A. C., Gendreau, K. C., Guillot, S., Homan, J., Jaisawal, G. K., Keek, L., La Marr, B., Malacaria, C., Markwardt, C. B., Steiner, J. F., & Strohmayer, T. E. (2018). Detection of Reflection Features in the Neutron Star Low-mass X-Ray Binary Serpens X-1 with NICER. Astrophysical Journal Letters, 858(1), [L5]. https://doi.org/10.3847/2041-8213/aabee6