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

doi: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

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

Astronomy

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

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 language	English (US)
Pages (from-to)	1928-1933
Number of pages	6
Journal	Astrophysical Journal
Volume	697
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/697/2/1928
State	Published - 2009

Keywords

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

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/697/2/1928

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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 journal › Article › peer-review

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

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.",

keywords = "Astrometry, Instrumentation: adaptive optics, Planetary systems, Stars: individual (Fomalhaut)",

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

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AU - Kenworthy, Matthew A.

AU - Mamajek, Eric E.

AU - Hinz, Philip M.

AU - Meyer, Michael R.

AU - Heinze, Aren N.

AU - Miller, Douglas L.

AU - Sivanandam, Suresh

AU - Freed, Melanie

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AB - 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.

KW - Astrometry

KW - Instrumentation: adaptive optics

KW - Planetary systems

KW - Stars: individual (Fomalhaut)

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JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

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

Abstract

Keywords

ASJC Scopus subject areas

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