The regulation of star formation in cool-core clusters: imprints on the stellar populations of brightest cluster galaxies

The regulation of star formation in cool-core clusters: imprints on the stellar populations of brightest cluster galaxies

A fraction of brightest cluster galaxies (BCGs) show bright emission in the ultraviolet and the blue part of the optical spectrum, which has been interpreted as evidence of recent star formation. Most of these results are based on the analysis of broad-band photometric data. Here, we study the optic...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2016-02, Vol.456 (2), p.1565-1578
Hauptverfasser: Loubser, S. I., Babul, A., Hoekstra, H., Mahdavi, A., Donahue, M., Bildfell, C., Voit, G. M.
Format: Artikel
Sprache:eng
Schlagworte:
Galactic clusters
Galaxies
Luminosity
Mathematical models
Populations
Star & galaxy formation
Star clusters
Star formation
Stellar populations
Ultraviolet astronomy
X-ray astronomy
X-rays
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Beschreibung
Zusammenfassung:A fraction of brightest cluster galaxies (BCGs) show bright emission in the ultraviolet and the blue part of the optical spectrum, which has been interpreted as evidence of recent star formation. Most of these results are based on the analysis of broad-band photometric data. Here, we study the optical spectra of a sample of 19 BCGs hosted by X-ray luminous galaxy clusters at 0.15
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/stv2784