AN ENIGMATIC POINT-LIKE FEATURE WITHIN THE HD 169142 TRANSITIONAL DISK

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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 Delta mag(L) similar to 6.4, at a separation of similar to 0 ''.11 and position angle similar to 0 degrees. Given its lack of an H or K-S 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 follow up is necessary for confirmation and characterization of this feature.

Original languageEnglish
Article number22
Number of pages6
JournalAstrophysical Journal Letters
Volume792
Issue number1
DOIs
Publication statusPublished - 1 Sep 2014

Keywords

  • planets and satellites: detection
  • planets and satellites: formation
  • planets and satellites: gaseous planets
  • protoplanetary disks
  • HERBIG AE/BE STARS
  • SPARSE APERTURE MASKING
  • PRETRANSITIONAL DISK
  • PLANET FORMATION
  • DEBRIS DISK
  • HR 8799
  • COMPANION
  • DISCOVERY
  • SYSTEM
  • IMAGES

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