ABSTRACT
Giant exoplanets on wide orbits have been directly imaged around young stars. If the thermal background in the mid-infrared can be mitigated, then exoplanets with lower masses can also be imaged. Here we present a ground-based mid-infrared observing approach that enables imaging low-mass temperate exoplanets around nearby stars, and in particular within the closest stellar system, α Centauri. Based on 75-80% of the best quality images from 100 h of cumulative observations, we demonstrate sensitivity to warm sub-Neptune-sized planets throughout much of the habitable zone of α Centauri A. This is an order of magnitude more sensitive than state-of-the-art exoplanet imaging mass detection limits. We also discuss a possible exoplanet or exozodiacal disk detection around α Centauri A. However, an instrumental artifact of unknown origin cannot be ruled out. These results demonstrate the feasibility of imaging rocky habitable-zone exoplanets with current and upcoming telescopes.
ABSTRACT
Appropriating to a study of literature about norm values for the judgement of nasal profils we investigated with the help of a metric analysis by 100 patients with Angle-Class II/1-anomalies mean values of the lengths of the darsum and the base of the nose, the distance Glabella-Pogonion, the naso-labial angle, the naso-frontal angle, and the naso-mental angle. Norm values and existing values of girls and boys with Class II/1-anomalies were compared and allowed conclusions to the development of the nasal profile.
