Discovering Longer-Period Transiting Exoplanets

Discovering Longer-Period Transiting Exoplanets Scores of transiting exoplanets have been discovered by ground-based surveys such as WASP, HAT, XO, TrES, MEarth, KELT, and others. Hundreds of transiting exoplanet candidates, scores of which are confirmed planets, have...

Cosmological Challenges of Dwarf Galaxies

Cosmological Challenges of Dwarf Galaxies A prime challenge to our understanding of galaxy formation concerns the scarcity of dwarf galaxies compared with the numerous low-mass halos expected in the current LCDM paradigm. This is usually accounted for by assuming that...