SIMBAD references

2020MNRAS.499.2554E - Mon. Not. R. Astron. Soc., 499, 2554-2563 (2020/December-1)

Wide-field study of the peculiar globular cluster system hosted by the field lenticular NGC 1172.

ENNIS A.I., CASO J.P., BASSINO L.P., SALINAS R. and GOMEZ M.

Abstract (from CDS):

We present a wide-field study of the globular cluster system (GCS) of the field lenticular galaxy NGC 1172, based on observations from Gemini Multi-Object Spectrograph/Gemini (optical), FourStar/Magellan (NIR), and archival data from ACS/Hubble Space Telescope (optical). This analysis covers the full extension of the GCS, and results in a value of specific frequency (SN = 8.6 ± 1.5) peculiarly high for an intermediate-mass galaxy in a low-density environment such as this one. We find that the GCS appears to be bimodal, although the colour distribution is narrow and does not allow for an accurate separation of the subpopulations. However, the combination of optical and NIR filters allows us to obtain an estimation of the metallicity distribution based on the photometry, which supports bimodality. We conclude that the presence of a large fraction of metal-poor globular clusters (GCs) and the high specific frequency point to NGC 1172 having accreted a significant amount of GCs from low-mass satellites in the past.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: star clusters: individual: NGC 1172 - galaxies: evolution

Simbad objects: 7

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2020MNRAS.499.2554E and select 'bookmark this link' or equivalent in the popup menu