A Third Exoplanetary System with Misaligned Orbital and Stellar Spin Axes

被引：77

作者：

Johnson, John Asher ^{[1
]}

Winn, Joshua N. ^{[2
,3
]}

Albrecht, Simon ^{[2
,3
]}

Howard, Andrew W. ^{[4
]}

Marcy, Geoffrey W. ^{[4
]}

Gazak, J. Zachary ^{[1
]}

机构：

[1] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

[2] MIT, Dept Phys, Cambridge, MA 02139 USA

[3] MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA

[4] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2009年 / 121卷 / 884期

关键词：

PLANET-PLANET SCATTERING; ECCENTRIC ORBIT; HD; 147506B; SPECTROSCOPIC TRANSIT; EXTRASOLAR PLANETS; STAR; ALIGNMENT; BINARY; PRECISION; MIGRATION;

D O I：

10.1086/644604

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present evidence that the WASP-14 exoplanetary system has misaligned orbital and stellar-rotational axes, with an angle lambda = -33.1 degrees +/- 7.4 degrees between their sky projections. The evidence is based on spectroscopic observations of the Rossiter-McLaughlin effect as well as new photometric observations. WASP-14 is now the third system known to have a significant spin-orbit misalignment, and all three systems have "super-Jupiter" planets (M(P) > 3 M(Jup)) and eccentric orbits. This finding suggests that the migration and subsequent orbital evolution of massive, eccentric exoplanets is somehow different from that of less massive close-in Jupiters, the majority of which have well-aligned orbits.

引用

页码：1104 / 1111

页数：8

共 47 条

[1] Hd 147506b:: A supermassive planet in an eccentric orbit transiting a bright star [J].

Bakos, G. A. ;

Kovacs, G. ;

Torres, G. ;

Fischer, D. A. ;

Latham, D. W. ;

Noyes, R. W. ;

Sasselov, D. D. ;

Mazeh, T. ;

Shporer, A. ;

Butler, R. P. ;

Stefanik, R. P. ;

Fernandez, J. M. ;

Sozzetti, A. ;

Pal, A. ;

Johnson, J. ;

Marcy, G. W. ;

Winn, J. N. ;

Sipoecz, B. ;

Lazar, J. ;

Papp, I. ;

Sari, P. .

ASTROPHYSICAL JOURNAL, 2007, 670 (01) :826-832

[2] HD 17156b: a transiting planet with a 21.2-day period and an eccentric orbit [J].

Barbieri, M. ;

Alonso, R. ;

Laughlin, G. ;

Almenara, J. M. ;

Bissinger, R. ;

Davies, D. ;

Gasparri, D. ;

Guido, E. ;

Lopresti, C. ;

Manzini, F. ;

Sostero, G. .

ASTRONOMY & ASTROPHYSICS, 2007, 476 (02) :L13-L16

[3] Attaining Doppler precision of 3 m s(-1) [J].

Butler, RP ;

Marcy, GW ;

Williams, E ;

McCarthy, C ;

Dosanjh, P ;

Vogt, SS .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1996, 108 (724) :500-509

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

Chatterjee, Sourav ;

Ford, Eric B. ;

Matsumura, Soko ;

Rasio, Frederic A. .

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

[5] The spin-orbit alignment of the HD 17156 transiting eccentric planetary system [J].

Cochran, William D. ;

Redfield, Seth ;

Endl, Michael ;

Cochran, Anita L. .

ASTROPHYSICAL JOURNAL LETTERS, 2008, 683 (01) :L59-L62

[6] Shrinking binary and planetary orbits by kozai cycles with tidal friction [J].

Fabrycky, Daniel ;

Tremaine, Scott .

ASTROPHYSICAL JOURNAL, 2007, 669 (02) :1298-1315

[7]

FABRYCKY DC, 2009, ARXIV09020737

[8] Five intermediate-period planets from the n2k sample [J].

Fischer, Debra A. ;

Vogt, Steven S. ;

Marcy, Geoffrey W. ;

Butler, R. Paul ;

Sato, Bun'ei ;

Henry, Gregory W. ;

Robinson, Sarah ;

Laughlin, Gregory ;

Ida, Shigeru ;

Toyota, Eri ;

Omiya, Masashi ;

Driscoll, Peter ;

Takeda, Genya ;

Wright, Jason T. ;

Johnson, John A. .

ASTROPHYSICAL JOURNAL, 2007, 669 (02) :1336-1344

[9] Quantifying the uncertainty in the orbits of extrasolar planets [J].

Ford, EB .

ASTRONOMICAL JOURNAL, 2005, 129 (03) :1706-1717

[10] Origins of eccentric extrasolar planets: Testing the planet-planet scattering model [J].

Ford, Eric B. ;

Rasio, Frederic A. .

ASTROPHYSICAL JOURNAL, 2008, 686 (01) :621-636

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