Essays about: "eROSITA"

Found 2 essays containing the word eROSITA.

  1. 1. Identifying Gravitationally Lensed QSO Candidates with eROSITA

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Róisín O'Rourke Brogan; [2020]
    Keywords : active galactic nuclei; agn; erosita; gaia; gravitational lensing; quasi-stellar objects; strong lensing; multiple images;

    Abstract : As of June 2020, the first all-sky X-ray survey with the eROSITA instrument aboard the spacecraft Spektr-RG has been completed. A high percentage of the 1.1 million objects included in the survey are expected to be active galactic nuclei (AGN). READ MORE

  3. 2. Ultraluminous sources in X-ray sky surveys

    University essay from Uppsala universitet/Högenergifysik

    Author : Miquel Colom i Bernadich; [2020]
    Keywords : X-rays; X-ray astronomy; black holes; neutron stars; accretion physics; XMM-Newton; eROSITA;

    Abstract : Ultraluminous X-ray sources (ULXs) are extragalactic, non-nuclear, point-like X-ray sources whose luminosity supersedes that of the Eddington limit of an accreting stellar mass black hole (L> 10 ^ 39 erg / s). Most of them are powered by black holes and neutron stars undergoing genuine super-Eddington accretion, with a small handful of candidates being consistent with sub-Eddington accretion on an intermediate mass black hole. READ MORE