MEASUREMENT OF THE NODAL PRECESSION OF WASP-33 b VIA DOPPLER TOMOGRAPHY

被引：70

作者：

Johnson, Marshall C. ^{[1
,2
]}

Cochran, William D. ^{[1
,2
]}

Cameron, Andrew Collier ^{[3
]}

Bayliss, Daniel ^{[4
]}

机构：

[1] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

[2] Univ Texas Austin, McDonald Observ, Austin, TX 78712 USA

[3] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland

[4] Univ Geneva, Astron Observ, CH-1290 Versoix, Switzerland

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2015年 / 810卷 / 02期

关键词：

line: profiles; planet-star interactions; planetary systems; planets and satellites: individual (WASP-33 b); techniques: spectroscopic; LINE-PROFILE TOMOGRAPHY; SPIN-ORBIT MISALIGNMENT; T-TAURI STAR; EXOPLANET TRANSITS; LIGHT CURVES; PTFO; 8-8695; PLANET; TELESCOPE; ROTATION; VELOCITY;

D O I：

10.1088/2041-8205/810/2/L23

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have analyzed new and archival time series spectra taken six years apart during transits of the hot Jupiter WASP-33 b, and spectroscopically resolved the line profile perturbation caused by the Rossiter-McLaughlin effect. The motion of this line profile perturbation is determined by the path of the planet across the stellar disk, which we show to have changed between the two epochs due to nodal precession of the planetary orbit. We measured rates of change of the impact parameter and the sky-projected spin-orbit misalignment of db/dt = -0.0228(-0.0018)(+0.0050) yr(-1) and d lambda/dt = -0 degrees.487(-0.076)(+0.089) yr(-1) respectively corresponding to a rate of nodal precession of d Omega/dt = 0 degrees.373(-0.083)(+0.031) yr(-1) This is only the second measurement of nodal precession for a confirmed exoplanet transiting a single star. Finally, we used the rate of precession to set limits on the stellar gravitational quadrupole moment of 0.0054 <= J(2) <= 0.035.

引用

页数：5

共 36 条

[1] RADIAL VELOCITY OBSERVATIONS AND LIGHT CURVE NOISE MODELING CONFIRM THAT KEPLER-91b IS A GIANT PLANET ORBITING A GIANT STAR [J].

Barclay, Thomas ;

Endl, Michael ;

Huber, Daniel ;

Foreman-Mackey, Daniel ;

Cochran, William D. ;

MacQueen, Phillip J. ;

Rowe, Jason F. ;

Quintana, Elisa V. .

ASTROPHYSICAL JOURNAL, 2015, 800 (01)

[2] MEASUREMENT OF SPIN-ORBIT MISALIGNMENT AND NODAL PRECESSION FOR THE PLANET AROUND PRE-MAIN-SEQUENCE STAR PTFO 8-8695 FROM GRAVITY DARKENING [J].

Barnes, Jason W. ;

van Eyken, Julian C. ;

Jackson, Brian K. ;

Ciardi, David R. ;

Fortney, Jonathan J. .

ASTROPHYSICAL JOURNAL, 2013, 774 (01)

[3] MEASUREMENT OF THE SPIN-ORBIT MISALIGNMENT OF KOI-13.01 FROM ITS GRAVITY-DARKENED KEPLER TRANSIT LIGHTCURVE [J].

Barnes, Jason W. ;

Linscott, Ethan ;

Shporer, Avi .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2011, 197 (01)

[4] KELT-7b: A HOT JUPITER TRANSITING A BRIGHT V=8.54 RAPIDLY ROTATING F-STAR [J].

Bieryla, Allyson ;

Collins, Karen ;

Beatty, Thomas G. ;

Eastman, Jason ;

Siverd, Robert J. ;

Pepper, Joshua ;

Gaudi, B. Scott ;

Stassun, Keivan G. ;

Canas, Caleb ;

Latham, David W. ;

Buchhave, Lars A. ;

Sanchis-Ojeda, Roberto ;

Winn, Joshua N. ;

Jensen, Eric L. N. ;

Kielkopf, John F. ;

McLeod, Kim K. ;

Gregorio, Joao ;

Colon, Knicole D. ;

Street, Rachel ;

Ross, Rachel ;

Penny, Matthew ;

Mellon, Samuel N. ;

Oberst, Thomas E. ;

Fulton, Benjamin J. ;

Wang, Ji ;

Berlind, Perry ;

Calkins, Michael L. ;

Esquerdo, Gilbert A. ;

DePoy, Darren L. ;

Gould, Andrew ;

Marshall, Jennifer ;

Pogge, Richard ;

Trueblood, Mark ;

Trueblood, Patricia .

ASTRONOMICAL JOURNAL, 2015, 150 (01)

[5] SOPHIE velocimetry of Kepler transit candidates XVI. Tomographic measurement of the low obliquity of KOI-12b, a warm Jupiter transiting a fast rotator [J].

Bourrier, V. ;

des Etangs, A. Lecavelier ;

Hebrard, G. ;

Santerne, A. ;

Deleuil, M. ;

Almenara, J. M. ;

Barros, S. C. C. ;

Boisse, I. ;

Bonomo, A. S. ;

Bruno, G. ;

Courcol, B. ;

Diaz, R. F. ;

Montagnier, G. ;

Moutou, C. .

ASTRONOMY & ASTROPHYSICS, 2015, 579

[6] ANALYSIS OF SPIN-ORBIT ALIGNMENT IN THE WASP-32, WASP-38, AND HAT-P-27/WASP-40 SYSTEMS [J].

Brown, D. J. A. ;

Cameron, A. Collier ;

Diaz, R. F. ;

Doyle, A. P. ;

Gillon, M. ;

Lendl, M. ;

Smalley, B. ;

Triaud, A. H. M. J. ;

Anderson, D. R. ;

Enoch, B. ;

Hellier, C. ;

Maxted, P. F. L. ;

Miller, G. R. M. ;

Pollacco, D. ;

Queloz, D. ;

Boisse, I. ;

Hebrard, G. .

ASTROPHYSICAL JOURNAL, 2012, 760 (02)

[7] Las Cumbres Observatory Global Telescope Network [J].

Brown, T. M. ;

Baliber, N. ;

Bianco, F. B. ;

Bowman, M. ;

Burleson, B. ;

Conway, P. ;

Crellin, M. ;

Depagne, E. ;

De Vera, J. ;

Dilday, B. ;

Dragomir, D. ;

Dubberley, M. ;

Eastman, J. D. ;

Elphick, M. ;

Falarski, M. ;

Foale, S. ;

Ford, M. ;

Fulton, B. J. ;

Garza, J. ;

Gomez, E. L. ;

Graham, M. ;

Greene, R. ;

Haldeman, B. ;

Hawkins, E. ;

Haworth, B. ;

Haynes, R. ;

Hidas, M. ;

Hjelstrom, A. E. ;

Howell, D. A. ;

Hygelund, J. ;

Lister, T. A. ;

Lobdill, R. ;

Martinez, J. ;

Mullins, D. S. ;

Norbury, M. ;

Parrent, J. ;

Paulson, R. ;

Petry, D. L. ;

Pickles, A. ;

Posner, V. ;

Rosing, W. E. ;

Ross, R. ;

Sand, D. J. ;

Saunders, E. S. ;

Shobbrook, J. ;

Shporer, A. ;

Street, R. A. ;

Thomas, D. ;

Tsapras, Y. ;

Tufts, J. R. .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2013, 125 (931) :1031-1055

[8] Line-profile tomography of exoplanet transits - II. A gas-giant planet transiting a rapidly rotating A5 star☆ [J].

Cameron, A. Collier ;

Guenther, E. ;

Smalley, B. ;

McDonald, I. ;

Hebb, L. ;

Andersen, J. ;

Augusteijn, Th. ;

Barros, S. C. C. ;

Brown, D. J. A. ;

Cochran, W. D. ;

Endl, M. ;

Fossey, S. J. ;

Hartmann, M. ;

Maxted, P. F. L. ;

Pollacco, D. ;

Skillen, I. ;

Telting, J. ;

Waldmann, I. P. ;

West, R. G. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2010, 407 (01) :507-514

[9] Line-profile tomography of exoplanet transits - I. The Doppler shadow of HD 189733b [J].

Cameron, A. Collier ;

Bruce, V. A. ;

Miller, G. R. M. ;

Triaud, A. H. M. J. ;

Queloz, D. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2010, 403 (01) :151-158

[10] FOLLOW-UP OBSERVATIONS OF PTFO 8-8695: A 3 MYR OLD T TAURI STAR HOSTING A JUPITER-MASS PLANETARY CANDIDATE [J].

Ciardi, David R. ;

Van Eyken, Julian C. ;

Barnes, Jason W. ;

Beichman, Charles A. ;

Carey, Sean J. ;

Crockett, Christopher J. ;

Eastman, Jason ;

Johns-Krull, Christopher M. ;

Howell, Steve B. ;

Kane, Stephen R. ;

Mclane, Jacob N. . ;

Plavchan, Peter ;

Prato, L. ;

Stauffer, John ;

Van Belle, Gerard T. ;

Von Braun, Kaspar .

ASTROPHYSICAL JOURNAL, 2015, 809 (01)

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