Ubiquitous cold and massive filaments in brightest cluster galaxies

Ubiquitous cold and massive filaments in brightest cluster galaxies

The origin of the mysterious multiphase filamentary structures surrounding Brightest Cluster Galaxies (BCGs) remains unknown. We present Atacama Large Millimeter/submillimeter Array (ALMA) and Multi Unit Spectroscopic Explorer (MUSE) observations for a sample of 15 BCGs to investigate the origin and...

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Veröffentlicht in:Proceedings of the International Astronomical Union 2020-03, Vol.15 (S359), p.182-184
Hauptverfasser: Olivares, Valeria, Salomé, Philippe
Format: Artikel
Sprache:eng
Schlagworte:
Active galactic nuclei
Archives & records
Astronomy
Bubbles
Clouds
Cold
Cold gas
Contributed Papers
Cooling
Filaments
Galactic clusters
Galaxies
Kinematics
Morphology
Numerical prediction
Radio telescopes
Sciences of the Universe
Stars & galaxies
Velocity
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Beschreibung
Zusammenfassung:The origin of the mysterious multiphase filamentary structures surrounding Brightest Cluster Galaxies (BCGs) remains unknown. We present Atacama Large Millimeter/submillimeter Array (ALMA) and Multi Unit Spectroscopic Explorer (MUSE) observations for a sample of 15 BCGs to investigate the origin and life-cycle of the gas. Those observations show clumpy and massive molecular filaments, preferentially located around the radio bubbles inflated by the active galactic nuclei (AGN). We investigate where the cold gas condenses from the intra-cluster medium, by comparing the radial extent of the filaments with predictions from numerical simulations.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921320002355