Discovery of Faint Double-peak Hα Emission in the Halo of Low Redshift Galaxies

Aimed at the detection of cosmological gas being accreted onto galaxies in the local universe, we examined the H α emission in the halo of 164 galaxies in the field of view of the Multi-Unit Spectroscopic Explorer Wide survey (MUSE-Wide) with observable H α (redshift 50 galaxy radii, which roughly c...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	The Astrophysical journal 2022-08, Vol.934 (2), p.100
Hauptverfasser:	Sánchez Almeida, J., Calhau, J., Muñoz-Tuñón, C., González-Morán, A. L., Rodríguez-Espinosa, J. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Accretion disks Astrophysical black holes Astrophysics Black holes Circumgalactic medium Clumps Cool intergalactic medium Emissions Extragalactic astronomy Galaxies Galaxy accretion Galaxy distribution Galaxy formation Galaxy fountains Galaxy winds H alpha line Intermediate-mass black holes Local group (astronomy) Red shift Stars & galaxies Statistical tests Stellar mass Surface brightness
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Aimed at the detection of cosmological gas being accreted onto galaxies in the local universe, we examined the H α emission in the halo of 164 galaxies in the field of view of the Multi-Unit Spectroscopic Explorer Wide survey (MUSE-Wide) with observable H α (redshift 50 galaxy radii, which roughly corresponds to the virial radius of the central galaxy. We explore several physical scenarios to explain this H α emission, among which accretion disks around rogue intermediate-mass black holes fit the observations best.
ISSN:	0004-637X 1538-4357
DOI:	10.3847/1538-4357/ac7319