MMT/AO 5 μm IMAGING CONSTRAINTS ON THE EXISTENCE OF GIANT PLANETS ORBITING FOMALHAUT AT ∼13-40 AU

被引：24

作者：

Kenworthy, Matthew A. ^{[1
]}

Mamajek, Eric E. ^{[2
]}

Hinz, Philip M. ^{[1
]}

Meyer, Michael R. ^{[1
]}

Heinze, Aren N. ^{[3
]}

Miller, Douglas L. ^{[1
]}

Sivanandam, Suresh ^{[1
]}

Freed, Melanie ^{[1
]}

机构：

[1] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[3] Swarthmore Coll, Swarthmore, PA 19081 USA

来源：

ASTROPHYSICAL JOURNAL | 2009年 / 697卷 / 02期

关键词：

astrometry; instrumentation: adaptive optics; planetary systems; stars: individual (Fomalhaut); ADAPTIVE OPTICS SYSTEM; BROWN DWARFS; SOLAR-SYSTEM; DEBRIS DISKS; MASS; EXOPLANETS; COMPANION; SCATTERING; TELESCOPE; STABILITY;

D O I：

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

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A candidate less than or similar to 3 M-Jup extrasolar planet was recently imaged by Kalas et al. using Hubble Space Telescope/Advanced Camera for Surveys and Keck II at 12 ''.7 (96 AU) separation from the nearby (d = 7.7 pc) young (similar to 200 Myr) A2V star Fomalhaut. Here, we report results from M-band (4.8 mu m) 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 (similar to 10-40 AU). Comparing our 5 sigma 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 similar to 13 to 40 AU and objects > 13 M-Jup from similar to 8 to 40 AU.

引用

页码：1928 / 1933

页数：6

共 48 条

[1] A survey for massive giant planets in debris disks with evacuated inner cavities [J].

Apai, D. ;

Janson, M. ;

Moro-Martin, A. ;

Meyer, M. R. ;

Mamajek, E. E. ;

Masciadri, E. ;

Henning, Th. ;

Pascucci, I. ;

Kim, J. S. ;

Hillenbrand, L. A. ;

Kasper, M. ;

Biller, B. .

ASTROPHYSICAL JOURNAL, 2008, 672 (02) :1196-1201

[2] Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 209458 [J].

Baraffe, I ;

Chabrier, G ;

Barman, TS ;

Allard, F ;

Hauschildt, PH .

ASTRONOMY & ASTROPHYSICS, 2003, 402 (02) :701-712

[3] Stability limits in resonant planetary systems [J].

Barnes, Rory ;

Greenberg, Richard .

ASTROPHYSICAL JOURNAL, 2007, 665 (01) :L67-L70

[4]

Barrado, 1998, ASTRON ASTROPHYS, V339, P831

[5] Detection of a third planet in the HD 74156 system using the Hobby-Eberly Telescope [J].

Bean, Jacob L. ;

McArthur, Barbara E. ;

Benedict, Fritz ;

Armstrong, Amber .

ASTROPHYSICAL JOURNAL, 2008, 672 (02) :1202-1208

[6] MMT-AO: two years of operation with the first adaptive secondary [J].

Brusa, G ;

Miller, DL ;

Kenworthy, M ;

Fisher, D ;

Riccardi, A .

ADVANCEMENTS IN ADAPTIVE OPTICS, PTS 1-3, 2004, 5490 :23-33

[7] A nongray theory of extrasolar giant planets and brown dwarfs [J].

Burrows, A ;

Marley, M ;

Hubbard, WB ;

Lunine, JI ;

Guillot, T ;

Saumon, D ;

Freedman, R ;

Sudarsky, D ;

Sharp, C .

ASTROPHYSICAL JOURNAL, 1997, 491 (02) :856-875

[8] PRECISION ASTROMETRY WITH ADAPTIVE OPTICS [J].

Cameron, P. B. ;

Britton, M. C. ;

Kulkarni, S. R. .

ASTRONOMICAL JOURNAL, 2009, 137 (01) :83-93

[9]

CHARBONNEAU D, 2007, PROTOSTARS PLANETS, V5, P701

[10] Dynamical outcomes of planet-planet scattering [J].

Chatterjee, Sourav ;

Ford, Eric B. ;

Matsumura, Soko ;

Rasio, Frederic A. .

ASTROPHYSICAL JOURNAL, 2008, 686 (01) :580-602

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