Accès ouvert
2026
article
OpenAlex
M. E. Ramos-Ceja, G. Lamer, M. Salvato, A. Merloni et autres
The eROSITA telescope array on board the Spektrum-Roentgen-Gamma (SRG) mission began its all-sky survey program in December 2019, scanning the sky at an approximately six-month cadence. Here, we present new catalogues of point-like and extended X-ray sources derived from the first three …
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Accès ouvert
2026
article
OpenAlex
P. Weber, T. P. Roberts, S. Hämmerich, E. Kyritsis et autres
Context . Ultraluminous X-ray sources (ULXs) are luminous non-nuclear X-ray point sources embedded in galaxies. Their luminosities exceeding 10 39 erg s −1 potentially require sub-Eddington accretion by objects with masses from ∼10 2 M ⊙ to ∼10 4 M ⊙ or …
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Accès ouvert
2026
article
OpenAlex
S. Hämmerich, A. Gokus, F. McBride, P. Weber et autres
Aims.eROSITA, on board the Spectrum Roentgen Gamma (SRG) spacecraft, performed its first X-ray all-sky survey (eRASS1) between December 2019 and June 2020. It detected about 930 000 sources, providing us with an unprecedented opportunity for a detailed blazar census properties of blazars …
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