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

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

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 Amag(L) ~ 6.4, at a separation of ~0".'11 and position angle ~0[degrees]. Given its lack of an H or KS counterp...

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Veröffentlicht in:Astrophysical journal. Letters 2014-09, Vol.792 (1), p.1-6
Hauptverfasser: Biller, Beth A, Males, Jared, Rodigas, Timothy, Morzinski, Katie, Close, Laird M, Juhasz, Attila, Follette, Katherine B, Lacour, Sylvestre, Benisty, Myriam, Sicilia-Aguilar, Aurora
Format: Artikel
Sprache:eng
Schlagworte:
Astrophysics
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BRIGHTNESS
COLOR
DETECTION
Disks
Emission
PHOTOSPHERE
Physics
Planet formation
PLANETS
Pollution sources
PROTOPLANETS
SATELLITES
Separation
STARS
WAVELENGTHS
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Zusammenfassung: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 Amag(L) ~ 6.4, at a separation of ~0".'11 and position angle ~0[degrees]. 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 follow up is necessary for confirmation and characterization of this feature.
ISSN:2041-8213
2041-8205
2041-8213
DOI:10.1088/2041-8205/792/1/L22