SIMBAD references

2020ApJ...891..144C - Astrophys. J., 891, 144-144 (2020/March-2)

Wide-field survey of dwarf satellite systems around 10 hosts in the Local Volume.


Abstract (from CDS):

We present the results of an extensive search for dwarf satellite galaxies around 10 primary host galaxies in the Local Volume (LV, D < 12 Mpc) using archival CFHT/MegaCam imaging data. The hosts span a wide range in properties, with stellar masses ranging from that of the Large Magellanic Cloud to ∼3 times that of the Milky Way. The surveyed hosts are: NGC 1023, NGC 1156, NGC 2903, NGC 4258, NGC 4565, NGC 4631, NGC 5023, M51, M64, and M104. We detect satellite candidates using a consistent semi-automated detection algorithm that is optimized for the detection of low surface brightness objects. Depending on the host, our completeness limit is Mg ∼ -8 to -10 (assuming the distance of the host). We detect objects with surface brightness down to µ0,g∼26 mag arcsec–2 at >=90% completeness. The survey areas of the six best-surveyed hosts cover most of the inner projected R< 150kpc area, which will roughly double the number of massive LV hosts surveyed at this level of area and luminosity completeness, once distances are measured for the candidates. The number of detected candidates range from 1 around M64 to 33 around NGC 4258. In total, 155 candidates are found, of which 93 are new. While we defer an analysis of the satellite luminosity functions of the hosts until distance information is available for the candidates, we do show that the candidates are primarily red, spheroidal systems with properties roughly consistent with known satellites in the Local Group.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Dwarf galaxies - Astronomical methods - Galaxy formation

Nomenclature: Tables 3-12: [CGB2020] dwHHMM+DDMM N=139.

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 45

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2020ApJ...891..144C and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact