We present SED modeling of a sample of 34 K-selected galaxies at z ∼ 2.3. These galaxies have NIR spectroscopy that samples the rest-frame Balmer/4000Å break as well as deep photometry in thirteen broadband filters. New to our analysis is IRAC data that extend the SEDs into the rest-frame NIR. Comparing parameters determined from SED fits with and without the IRAC data we find that the IRAC pho...

Near-infrared photometry of transiting extrasolar planets can be of great scientific value. It is however not straightforward to reach the necessary millimagnitude precision. Here we report on our attempts to observe transits and secondary eclipses of several extrasolar planets at 2.2 μm. Best results have been obtained on OGLE-TR-113b using the SOFI near-infrared camera on ESO’s New Technology...

Aims. We present a study of the evolved stellar populations in the dwarf spheroidal galaxy Fornax based on wide-area near-infrared observations, aimed at obtaining new independent estimates of its distance and metallicity distribution. Assessing the reliability of near-infrared methods is most important in view of future spaceand ground-based deep near-infrared imaging of resolved stellar syste...

We present VRI photometry of 320,917 stars with 11 . R . 18 throughout the λ Ori star-forming region. Using the more spatially limited spectroscopic surveys of Dolan & Mathieu to define the color magnitude domain of young low-mass members of the association, and removing statistically the field stars in this domain, we use our photometry to identify a representative PMS population throughout th...