Bibcode
Fingerhut, Robin L.; McCall, Marshall L.; Argote, Mauricio; Cluver, Michelle E.; Nishiyama, Shogo; Rekola, Rami T. F.; Richer, Michael G.; Vaduvescu, Ovidiu; Woudt, Patrick A.
Bibliographical reference
The Astrophysical Journal, Volume 716, Issue 1, pp. 792-809 (2010).
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6
2010
Journal
Citations
18
Refereed citations
17
Description
We present deep near-infrared (Ks ) images and surface
photometry for 80 dwarf irregular galaxies (dIs) within ~5 Mpc of the
Milky Way. The galaxy images were obtained at five different facilities
between 2004 and 2006. The image reductions and surface photometry have
been performed using methods specifically designed for isolating faint
galaxies from the high and varying near-infrared sky level. Fifty-four
of the 80 dIs have surface brightness profiles which could be fit to a
hyperbolic-secant (sech) function, while the remaining profiles could be
fit to the sum of a sech and a Gaussian function. From these fits, we
have measured central surface brightnesses, scale lengths, and
integrated magnitudes. This survey is part of a larger study of the
connection between large-scale structure and the global properties of
dIs, the hypothesized building-blocks of more massive galaxies.
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Julia de
León Cruz