HD 222237 b: a long-period super-Jupiter around a nearby star revealed by radial-velocity and Hipparcos-Gaia astrometry

被引：1

作者：

Xiao, Guang-Yao ^{[1
,2
]}

Feng, Fabo ^{[1
,2
]}

Shectman, Stephen A. ^{[3
]}

Tinney, C. G.

Teske, Johanna K. ^{[6
]}

Carter, B. D. ^{[7
]}

Jones, H. R. A. ^{[8
]}

Wittenmyer, Robert A. ^{[7
]}

Diaz, Matias R. ^{[9
]}

Crane, Jeffrey D. ^{[3
]}

Wang, Sharon X. ^{[10
]}

Bailey, J. ^{[4
,5
]}

O'Toole, S. J. ^{[11
]}

Feinstein, Adina D. ^{[12
]}

Rice, Malena ^{[13
]}

Essack, Zahra ^{[14
]}

Montet, Benjamin T. ^{[15
,16
]}

Shporer, Avi ^{[17
]}

Butler, R. Paul ^{[6
,18
]}

机构：

[1] Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, 1 Lisuo Rd, Shanghai 201210, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Phys & Astron, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[3] Observ Carnegie Inst Sci, 813 St Barbara St, Pasadena, CA 91101 USA

[4] Univ New South Wales, Sch Phys, Sch, Sydney, NSW 2052, Australia

[5] Univ New South Wales, Australian Ctr Astrobiol, Sydney, NSW 2052, Australia

[6] Carnegie Inst Sci, Earth & Planets Lab, 5241 Broad Branch Rd, Washington, DC 20015 USA

[7] Univ Southern Queensland, USQ Toowoomba, Ctr Astrophys, Toowoomba, Qld 4350, Australia

[8] Univ Hertfordshire, Ctr Astrophys Res, Coll Lane, Hatfield AL10 9AB, Herts, England

[9] Carnegie Inst Washington, Campanas Observ, La Serena 601, Chile

[10] Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China

[11] Macquarie Univ, Australian Astron Opt, N Ryde, NSW 1670, Australia

[12] Univ Colorado Boulder, Lab Atmospher & Space Phys, UCB 600, Boulder, CO 80309 USA

[13] Yale Univ, Dept Astron, New Haven, CT 06511 USA

[14] Univ New Mexico, Dept Phys & Astron, 210 Yale Blvd NE, Albuquerque, NM 87106 USA

[15] Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia

[16] Univ New South Wales, UNSW Data Sci Hub, Sydney, NSW 2052, Australia

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

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

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 534卷 / 03期

基金：

中国国家自然科学基金;

关键词：

techniques: radial velocities; astrometry; planetary systems; stars: individual: HD 222237; CHAIN MONTE-CARLO; GIANT PLANETS; COLD JUPITER; MASS; CATALOG; STELLAR; SPECTROSCOPY; COMPANIONS; SUBSTELLAR; ALGORITHMS;

D O I：

10.1093/mnras/stae2151

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Giant planets on long-period orbits around the nearest stars are among the easiest to directly image. Unfortunately these planets are difficult to fully constrain by indirect methods, e.g. transit and radial velocity (RV). In this study, we present the discovery of a super-Jupiter, HD 222237 b, orbiting a star located 11.445 +/- 0.002 pc away. By combining RV data, Hipparcos, and multi-epoch Gaia astrometry, we estimate the planetary mass to be 5.19(-0.58)(+0.58) M-Jup, with an eccentricity of 0.56(-0.03)(+0.03) and a period of 40.8(-4.5)(+5.8) yr, making HD 222237 b a promising target for imaging using the Mid-Infrared Instrument (MIRI) of JWST. A comparative analysis suggests that our method can break the inclination degeneracy and thus differentiate between prograde and retrograde orbits of a companion. We further find that the inferred contrast ratio between the planet and the host star in the F1550C filter (15.50 mu m) is approximately 1.9x 10(-4), which is comparable with the measured limit of the MIRI coronagraphs. The relatively low metallicity of the host star (-0.32 dex) combined with the unique orbital architecture of this system presents an excellent opportunity to probe the planet-metallicity correlation and the formation scenarios of giant planets.

引用

页码：2858 / 2874

页数：17

共 71 条

[1] The NASA Exoplanet Archive: Data and Tools for Exoplanet Research [J].

Akeson, R. L. ;

Chen, X. ;

Ciardi, D. ;

Crane, M. ;

Good, J. ;

Harbut, M. ;

Jackson, E. ;

Kane, S. R. ;

Laity, A. C. ;

Leifer, S. ;

Lynn, M. ;

McElroy, D. L. ;

Papin, M. ;

Plavchan, P. ;

Ramirez, S. V. ;

Rey, R. ;

von Braun, K. ;

Wittman, M. ;

Abajian, M. ;

Ali, B. ;

Beichman, C. ;

Beekley, A. ;

Berriman, G. B. ;

Berukoff, S. ;

Bryden, G. ;

Chan, B. ;

Groom, S. ;

Lau, C. ;

Payne, A. N. ;

Regelson, M. ;

Saucedo, M. ;

Schmitz, M. ;

Stauffer, J. ;

Wyatt, P. ;

Zhang, A. .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2013, 125 (930) :989-999

[2] Rapid inward migration of planets formed by gravitational instability [J].

Baruteau, Clement ;

Meru, Farzana ;

Paardekooper, Sijme-Jan .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 416 (03) :1971-1982

[3] JWST/MIRI coronagraphic performances as measured on-sky [J].

Boccaletti, A. ;

Cossou, C. ;

Baudoz, P. ;

Lagage, P. O. ;

Dicken, D. ;

Glasse, A. ;

Hines, D. C. ;

Aguilar, J. ;

Detre, O. ;

Nickson, B. ;

Noriega-Crespo, A. ;

Gaspar, A. ;

Labiano, A. ;

Stark, C. ;

Rouan, D. ;

Reess, J. M. ;

Wright, G. S. ;

Rieke, G. ;

Marin, M. Garcia ;

Lajoie, C. ;

Girard, J. ;

Perrin, M. ;

Soummer, R. ;

Pueyo, L. .

ASTRONOMY & ASTROPHYSICS, 2022, 667

[4] Population-level Eccentricity Distributions of Imaged Exoplanets and Brown Dwarf Companions: Dynamical Evidence for Distinct Formation Channels* [J].

Bowler, Brendan P. ;

Blunt, Sarah C. ;

Nielsen, Eric L. .

ASTRONOMICAL JOURNAL, 2020, 159 (02)

[5] Improved Dynamical Masses for Six Brown Dwarf Companions Using Hipparcos and Gaia EDR3 [J].

Brandt, G. Mirek ;

Dupuy, Trent J. ;

Li, Yiting ;

Chen, Minghan ;

Brandt, Timothy D. ;

Wong, Tin Long Sunny ;

Currie, Thayne ;

Bowler, Brendan P. ;

Liu, Michael C. ;

Best, William M. J. ;

Phillips, Mark W. .

ASTRONOMICAL JOURNAL, 2021, 162 (06)

[6] orvara: An Efficient Code to Fit Orbits Using Radial Velocity, Absolute, and/or Relative Astrometry [J].

Brandt, Timothy D. ;

Dupuy, Trent J. ;

Li, Yiting ;

Brandt, G. Mirek ;

Zeng, Yunlin ;

Michalik, Daniel ;

Gagliuffi, Daniella C. Bardalez ;

Raposo-Pulido, Virginia .

ASTRONOMICAL JOURNAL, 2021, 162 (05)

[7] The Hipparcos-Gaia Catalog of Accelerations: Gaia EDR3 Edition [J].

Brandt, Timothy D. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2021, 254 (02)

[8] The Hipparcos-Gaia Catalog of Accelerations [J].

Brandt, Timothy D. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2018, 239 (02)

[9] Gaia Early Data Release 3 Summary of the contents and survey properties [J].

Brown, A. G. A. ;

Vallenari, A. ;

Prusti, T. ;

de Bruijne, J. H. J. ;

Babusiaux, C. ;

Biermann, M. ;

Creevey, O. L. ;

Evans, D. W. ;

Eyer, L. ;

Hutton, A. ;

Jansen, F. ;

Jordi, C. ;

Klioner, S. A. ;

Lammers, U. ;

Lindegren, L. ;

Luri, X. ;

Mignard, F. ;

Panem, C. ;

Pourbaix, D. ;

Randich, S. ;

Sartoretti, P. ;

Soubiran, C. ;

Walton, N. A. ;

Arenou, F. ;

Bailer-Jones, C. A. L. ;

Bastian, U. ;

Cropper, M. ;

Drimmel, R. ;

Katz, D. ;

Lattanzi, M. G. ;

van Leeuwen, F. ;

Bakker, J. ;

Cacciari, C. ;

Castaneda, J. ;

De Angeli, F. ;

Ducourant, C. ;

Fabricius, C. ;

Fouesneau, M. ;

Fremat, Y. ;

Guerra, R. ;

Guerrier, A. ;

Guiraud, J. ;

Jean-Antoine Piccolo, A. ;

Masana, E. ;

Messineo, R. ;

Mowlavi, N. ;

Nicolas, C. ;

Nienartowicz, K. ;

Pailler, F. ;

Panuzzo, P. .

ASTRONOMY & ASTROPHYSICS, 2021, 649

[10] Gaia Data Release 2. Summary of the contents and survey properties [J].