Precessing winds from the nucleus of the prototype Red Geyser?

Author(s):Show less -

Riffel, Rogemar A. ^{[1, 2]} ; Nemmen, Rodrigo S. ^[3] ; Ilha, Gabriele S. ^{[1, 2]} ; Rembold, Sandro B. ^{[1, 2]} ; Roy, Namrata ^[4] ; Storchi-Bergmann, Thaisa ^{[5, 2]} ; Riffel, Rogerio ^{[5, 2]} ; Bundy, Kevin A. ^[6] ; Machado, Alice D. ^{[1, 2]} ; Mallman, Nicolas D. ^{[5, 2]} ; Schimoia, Jaderson S. ^{[1, 2, 7]} ; da Costa, Luiz N. ^{[2, 8]} ; Maia, Marcio A. G. ^{[2, 8]}

Affiliation

^[1] Univ Fed Santa Maria, CCNE, Dept Fis, BR-97105900 Santa Maria, RS - Brazil

^[2] Lab Interinstituc E Astron LIneA, Rua Gen Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ - Brazil

^[3] Univ Sao Paulo, Dept Astron, IAG, BR-05508090 Sao Paulo, SP - Brazil

^[4] Univ Calif Santa Cruz, Dept Astron & Astrophys, 1156 High St, Santa Cruz, CA 95064 - USA

^[5] Univ Fed Rio Grande do Sul, IF, CP 15051, BR-91501970 Porto Alegre, RS - Brazil

^[6] Univ Calif Santa Cruz, UCO Lick Observ, 1156 High St, Santa Cruz, CA 95064 - USA

^[7] Univ Fed Santa Catarina, Phys Dept, BR-88036000 Florianopolis, SC - Brazil

^[8] Observ Nacl MCT, Rua Gen Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ - Brazil

• Document type: Journal article
• Source: Monthly Notices of the Royal Astronomical Society; v. 485, n. 4, p. 5590-5597, JUN 2019.
• Web of Science Citations: 3

Abstract

Supermassive black holes (SMBHs) are present at the centre of most galaxies, with the related mass accretion processes giving origin to outflows in active galactic nuclei (AGNs). It has been presumed that only intense winds from luminous AGNs were able to suppress star formation until the discovery of a new class of galaxies with no recent star formation and with the nucleus in a quiescent state showing kpc scale outflows. We used SDSS MaNGA and Gemini Integral Field Spectroscopy of the prototype Red Geyser Akira and found that the orientation of the outflow changes by about 50 degrees from its nucleus to kpc scales. A possible interpretation is that the outflow is produced by a precessing accretion disc due to a misalignment between the orientation of the disc and the spin of the SMBH. The precession of the central source is also supported by a similar change in the orientation of the ionization pattern. Although similar behaviour has commonly being reported for collimated relativistic jets, the precession of an AGN wide wind is reported here for the first time, implying on a larger work surface of the wind, which in turn increases the star formation suppression efficiency of the outflow. (AU)

• FAPESP's process: 17/01461-2 - The extreme universe: black holes and the Fermi telescope
• Grantee: Rodrigo Nemmen da Silva
• Support Opportunities: Research Grants - Young Investigators Grants