We report the detection of a faint pointlike feature possibly related to ongoing planet-formation in the disk of the transition disk star HD 169142. The pointlike feature has a Delta-mag(L) ? 6.4, at a separation of ? 0" .11 and PA ? 0º. Given its lack of an H or KS counterpart despite its relative brightness, this candidate cannot be explained by purely photospheric emission and must be a disk feature heated by an as yet unknown source. Its extremely red colors make it highly unlikely to be a background object, but future multi-wavelength followup is necessary for confirmation and characterization of this feature.
|Number of pages||6|
|Journal||Astrophysical Journal Letters|
|Publication status||Published - 20 Aug 2014|
- astro-ph.EP astro-ph.SR Planets and satellites: detection Planets and satellites: formation Planets and satellites: gaseous planets Protoplanetary disks