77 citations · 273 across the 15 of their papers we have counts for
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astro-ph2005
Photometric monitoring of the doubly imaged quasar UM673: possible evidence for chromatic microlensing
Th. Nakos, F. Courbin, J. Poels +12
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673).The data, obtained at ESO-La Silla with the 1.54 m Danish tel…
astro-ph2005
HST/ACS observations of the old and metal-poor Sagittarius dwarf irregular galaxy
Y. Momany, E. V. Held, I. Saviane +6
We have obtained deep color-magnitude diagrams of the Sagittarius dwarf irregular galaxy with the HST/ACS. The new diagrams unveil for the first time the star formation history of…
astro-ph2005
The near-IR luminosity-metallicity relation of dwarf irregular galaxies
Ivo Saviane, Enrico V. Held, Valentin Ivanov +5
We report on the recent developments of our long-term investigation of the near-IR luminosity-metallicity relation for dwarf irregular galaxies in nearby groups. A very well-define…