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 | |
| State | Published - 2009 |
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Keywords
- Astrometry
- Instrumentation: adaptive optics
- Planetary systems
- Stars: individual (Fomalhaut)
ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics
Cite this
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
}
TY - JOUR
T1 - MMT/AO 5 μm imaging constraints on the existence of giant planets orbiting fomalhaut at 13-40 AU
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
PY - 2009
Y1 - 2009
N2 - 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.
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)
UR - http://www.scopus.com/inward/record.url?scp=66649091233&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=66649091233&partnerID=8YFLogxK
U2 - 10.1088/0004-637X/697/2/1928
DO - 10.1088/0004-637X/697/2/1928
M3 - Article
AN - SCOPUS:66649091233
VL - 697
SP - 1928
EP - 1933
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
ER -