An enigmatic pointlike feature within the HD 169142 transitional disk
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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.
Biller , B A , Males , J , Rodigas , T , Morzinski , K , Close , L M , Juhász , A , Follette , K B , Lacour , S , Benisty , M , Sicilia-Aguilar , A , Hinz , P M , Weinberger , A , Henning , T , Pott , J-U , Bonnefoy , M & Köhler , R 2014 , ' An enigmatic pointlike feature within the HD 169142 transitional disk ' Astrophysical Journal Letters , vol 792 , no. 1 , L22 . DOI: 10.1088/2041-8205/792/1/L22
Astrophysical Journal Letters
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