MMT/AO 5 μm imaging constraints on the existence of giant planets orbiting fomalhaut at 13-40 AU

Matthew A. Kenworthy, Eric E. Mamajek, Philip M Hinz, Michael R. Meyer, Aren N. Heinze, Douglas L. Miller, Suresh Sivanandam, Melanie Freed

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A candidate ≲3 M Jup extrasolar planet was recently imaged by Kalas etal. using Hubble Space Telescope/Advanced Camera for Surveys and Keck II at 127 (96AU) separation from the nearby (d = 7.7 pc) young (200 Myr) A2V star Fomalhaut. Here, we report results from M-band (4.8 μm) imaging of Fomalhaut on 2006 December 5 using the Clio IR imager on the 6.5 m MMT with the adaptive secondary mirror. Our images are sensitive to giant planets at orbital radii comparable to the outer solar system (10-40AU). Comparing our 5σ M-band photometric limits to theoretical evolutionary tracks for substellar objects, our results rule out the existence of planets with masses >2 M Jup from 13 to 40AU and objects >13 M Jup from 8 to 40AU.

Original languageEnglish (US)
Pages (from-to)1928-1933
Number of pages6
JournalAstrophysical Journal
Volume697
Issue number2
DOIs
StatePublished - 2009

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planets
planet
extrasolar planets
Hubble Space Telescope
solar system
cameras
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stars
orbitals
radii
young

Keywords

  • Astrometry
  • Instrumentation: adaptive optics
  • Planetary systems
  • Stars: individual (Fomalhaut)

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Kenworthy, M. A., Mamajek, E. E., Hinz, P. M., Meyer, M. R., Heinze, A. N., Miller, D. L., ... Freed, M. (2009). MMT/AO 5 μm imaging constraints on the existence of giant planets orbiting fomalhaut at 13-40 AU. Astrophysical Journal, 697(2), 1928-1933. https://doi.org/10.1088/0004-637X/697/2/1928

MMT/AO 5 μm imaging constraints on the existence of giant planets orbiting fomalhaut at 13-40 AU. / Kenworthy, Matthew A.; Mamajek, Eric E.; Hinz, Philip M; Meyer, Michael R.; Heinze, Aren N.; Miller, Douglas L.; Sivanandam, Suresh; Freed, Melanie.

In: Astrophysical Journal, Vol. 697, No. 2, 2009, p. 1928-1933.

Research output: Contribution to journalArticle

Kenworthy, MA, Mamajek, EE, Hinz, PM, Meyer, MR, Heinze, AN, Miller, DL, Sivanandam, S & Freed, M 2009, 'MMT/AO 5 μm imaging constraints on the existence of giant planets orbiting fomalhaut at 13-40 AU', Astrophysical Journal, vol. 697, no. 2, pp. 1928-1933. https://doi.org/10.1088/0004-637X/697/2/1928
Kenworthy, Matthew A. ; Mamajek, Eric E. ; Hinz, Philip M ; Meyer, Michael R. ; Heinze, Aren N. ; Miller, Douglas L. ; Sivanandam, Suresh ; Freed, Melanie. / MMT/AO 5 μm imaging constraints on the existence of giant planets orbiting fomalhaut at 13-40 AU. In: Astrophysical Journal. 2009 ; Vol. 697, No. 2. pp. 1928-1933.
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