Bibcode
Martín-Navarro, I.; Trujillo, I.; Knapen, J. H.; Bakos, J.; Fliri, J.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 441, Issue 4, p.2809-2814
Advertised on:
7
2014
Citations
25
Refereed citations
24
Description
The absence of stellar disc truncations in low-inclined spiral galaxies
has been a matter of debate in the last decade. Disc truncations are
often observed in highly inclined galaxies but no obvious detection of
this feature has so far been made in face-on spirals. Here we show,
using a simple exponential disc plus stellar halo model based on current
observational constraints, that truncations in face-on projections occur
at surface brightness levels comparable to the brightness of stellar
haloes at the same radial distance. In this sense, stellar haloes
outshine the galaxy disc at the expected position of the truncations,
forcing their studies only in highly inclined (edge-on) orientations.
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