The search for X-ray dim isolated neutron stars in the SRG/eROSITA All-Sky Survey

18 Sept 2024, 09:30
15m
HS 1 Hörsaal/lecture hall 1 (Garching)

HS 1 Hörsaal/lecture hall 1

Garching

Technical University Munich (TUM) Boltzmannstraße 15, 85748 Garching

Speaker

Jan Kurpas (Leibniz-Institut für Astrophysik Potsdam)

Description

X-ray dim isolated neutron stars (XDINSs) are famous for their amazingly clean thermal X-ray emission. The small known population that comprises only a handful sources, however, demands new identifications before their population properties, evolution, and links to other isolated neutron star (INS) families can be constrained. With the potential to constitute a significant fraction of all Galactic INSs, new members of the elusive XDINS class are ought to be hiding among the myriad of X-ray sources that are detected in the SRG/eROSITA All-Sky Survey (eRASS). In this talk, we will present the strategy to identify new XDINSs in the eRASS, discuss the selected candidates that will form the foundation of a representative sample of these objects and report the results of recent observations with NICER, XMM-Newton and the ESO-VLT that already confirm the thermal INS nature for several candidates.

Primary author

Jan Kurpas (Leibniz-Institut für Astrophysik Potsdam)

Co-authors

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