Séminaire IPAG

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Winds from accretion flows in both stellar and supermassive black holes revealed by new high resolution X-ray data from XRISM

jeudi 19 juin 2025 - 11h00

Chris Done - U. Durham
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Accretion discs in strong gravity ubiquitously produce winds, seen as blueshifted absorption lines in the X-ray band of both stellar mass X-ray binaries (black holes and neutron stars) and supermassive black holes. Many suggested wind launch mechanisms are scale invariant, and should work similarly across the entire mass range. Hence we can use winds from the brighter stellar mass binaries to give insight into the winds from quasars which are implicated in controlling galaxy formation across cosmic time (AGN feedback) I will review what we see of these winds from XRISM Resolve observations, and how these are revealing the physical launch mechanisms.

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Hôtes : Pierre-Olivier Petrucci

Salle Manuel Forestini, 414 rue de la piscine, 38400 Saint Martin d'Hères