An enigmatic point-like feature within the HD 169142 transitional disk

Beth A. Biller, Jared Males, Timothy Rodigas, Katie Morzinski, Laird M. Close, Attila Juhász, Katherine B. Follette, Sylvestre Lacour, Myriam Benisty, Aurora Sicilia-Aguilar, Philip M. Hinz, Alycia Weinberger, Thomas Henning, Jörg Uwe Pott, Mickaël Bonnefoy, Rainer Köhler

Research output: Contribution to journalArticlepeer-review

98 Scopus citations


We report the detection of a faint point-like feature possibly related to ongoing planet-formation in the disk of the transition disk star HD 169142. The point-like feature has a Δmag(L)6.4, at a separation of 0.″11 and position angle 0°. Given its lack of an H or KScounterpart 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 follow up is necessary for confirmation and characterization of this feature.

Original languageEnglish (US)
Article numberL22
JournalAstrophysical Journal Letters
Issue number1
StatePublished - Sep 1 2014


  • planets and satellites: detection
  • planets and satellites: formation
  • planets and satellites: gaseous planets
  • protoplanetary disks

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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