Bibcode
DOI
Marín-Franch, A.; Aparicio, A.
Referencia bibliográfica
The Astrophysical Journal, Volume 594, Issue 1, pp. 63-74.
Fecha de publicación:
9
2003
Revista
Número de citas
1
Número de citas referidas
1
Descripción
The faint end of the differential galaxy number counts n(m) in the
Hubble Deep Field-North (HDF-N) has been determined for the F450W,
F606W, and F814W filters by means of surface brightness fluctuation
measurements. This technique allows us to explore n(m) beyond the
limiting magnitude of the HDF, providing new, stronger constraints on
the faint end of n(m). This has allowed us to test the validity of
previous number count studies, to produce a new determination of the
faint end of n(m) for magnitudes fainter than 28.8 in the AB system, and
to extend this estimate down to 31 mag. This value represents an
extension of more than 2 mag beyond the limits of previous photometric
studies. The obtained n(m) slopes are γ=0.27, 0.21, and 0.26 in
B450, V606, and I814, respectively.