X-ray dim isolated neutron star candidates from the eROSITA All-Sky Survey

Kurpas, J.; Schwope, A.; Pires, A. M.; Haberl, F.

doi:10.1017/S1743921322000163

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X-ray dim isolated neutron star candidates from the eROSITA All-Sky Survey

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Haberl, F.
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Citation

Kurpas, J., Schwope, A., Pires, A. M., & Haberl, F. (2023). X-ray dim isolated neutron star candidates from the eROSITA All-Sky Survey. In E. Troja, & M. G. Baring (Eds.), Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution (pp. 345 -346). Cambridge, UK: Cambridge University Press. doi:10.1017/S1743921322000163.

Cite as: https://hdl.handle.net/21.11116/0000-000D-4B5C-9

Abstract

After 2 years of continuous observations, the eROSITA All-Sky Survey bears the potential to build a complete sample of X-ray dim isolated neutron stars (XDINS). Making use of their soft X-ray emission and large X-ray-to-optical flux ratios, we selected a sample of ∼100 candidates detected down to a limiting flux of ∼10^-13 erg s^-1cm^-2(0.2-2 keV). Follow-up observations of the best candidates will rule out possible contaminants. Updated source catalogues and screening algorithms will further improve our efficiency to identify new XDINS.