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Title: Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager

Abstract

Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric compositions and luminosities, which are influenced by their formation mechanisms. Using the Gemini Planet Imager, we discovered a planet orbiting the ~20-million-year-old star 51 Eridani at a projected separation of 13 astronomical units. Near-infrared observations show a spectrum with strong methane and water-vapor absorption. Modeling of the spectra and photometry yields a luminosity (normalized by the luminosity of the Sun) of 1.6 to 4.0 × 10–6 and an effective temperature of 600 to 750 K. For this age and luminosity, “hot-start” formation models indicate a mass twice that of Jupiter. Furthermore, this planet also has a sufficiently low luminosity to be consistent with the “cold-start” core-accretion process that may have formed Jupiter.

Authors:
 [1];  [2];  [3];  [2];  [4];  [5];  [6];  [7];  [8];  [9];  [10];  [11];  [2];  [9];  [12];  [13];  [10];  [2];  [14];  [15] more »;  [16];  [17];  [18];  [8];  [2];  [19];  [2];  [2];  [10];  [20];  [21];  [13];  [22];  [13];  [23];  [24];  [20];  [25];  [26];  [27];  [28];  [29];  [13];  [30];  [20];  [31];  [10];  [13];  [29];  [24];  [8];  [19];  [14];  [20];  [24];  [32];  [19];  [2];  [24];  [3];  [33];  [34];  [12];  [35];  [8];  [12];  [18];  [27];  [36];  [37];  [24];  [38];  [37];  [39];  [40];  [2];  [41];  [42];  [8];  [29];  [8];  [30];  [43];  [43];  [9];  [24];  [26];  [13] « less
  1. Stanford Univ., Stanford, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of California, Berkeley, CA (United States)
  3. Univ. of Arizona, Tucson, AZ (United States)
  4. Univ. of California, San Diego, CA (United States)
  5. NASA Ames Research Center, Moffett Field, CA (United States)
  6. National Research Council of Canada, Herzberg Institute of Astrophysics, Victoria, BC (Canada); Univ. of Victoria, Victoria, BC (Canada)
  7. Search for Extraterrestrial Intelligence Institute, Mountain View, CA (United States); Stanford Univ., Stanford, CA (United States)
  8. Space Telescope Science Institute, Baltimore, MD (United States)
  9. Arizona State Univ., Tempe, AZ (United States)
  10. Univ. de Montreal, Montreal, QC (Canada)
  11. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  12. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  13. Univ. of California, Los Angeles, CA (United States)
  14. Search for Extraterrestrial Intelligence Institute, Mountain View, CA (United States)
  15. The Univ. of Western Ontario, London, ON (Canada)
  16. Arizona State Univ., Tempe, AZ (United States); Subaru Telescope, Hilo, HI (United States)
  17. NASA Ames Research Center, Moffett Field, CA (United States); Univ. of Herfordshire, Hatfield (United Kingdom)
  18. Princeton Univ., Princeton, NJ (United States)
  19. Univ. of Toronto, Toronto, ON (Canada)
  20. Univ. of Victoria, Victoria, BC (Canada); National Research Council of Canada, Herzberg Institute of Astrophysics, Victoria, BC (Canada)
  21. Univ. of California, Berkeley, CA (United States); Univ. Grenoble Alpes, Grenoble (France)
  22. Univ. of Chicago, Chicago, IL (United States)
  23. Stanford Univ., Stanford, CA (United States)
  24. Univ. of California, Santa Cruz, CA (United States)
  25. Durham Univ., Durham (United Kingdom); Gemini Observatory, La Serena (Chile)
  26. Johns Hopkins Univ., Baltimore, MD (United States); Space Telescope Science Institute, Baltimore, MD (United States)
  27. Gemini Observatory, La Serena (Chile)
  28. Univ. of Exeter, Exeter (United Kingdom)
  29. Univ. of Georgia, Athens, GA (United States)
  30. Large Synoptic Survey Telescope, Tucson, AZ (United States)
  31. Univ. of California, Berkeley, CA (United States); Search for Extraterrestrial Intelligence Institute, Mountain View, CA (United States)
  32. The Univ. of Western Ontario, London, ON (Canada); Stony Brook Univ., Stony Brook, NY (United States)
  33. Univ. of California, Santa Barbara, CA (United States)
  34. American Museum of Natural History, New York, NY (United States)
  35. Stony Brook Univ., Stony Brook, NY (United States)
  36. College of Staten Island, City Univ. of New York, Staten Island, NY (United States); American Museum of Natural History, New York, NY (United States)
  37. Univ. de Chile, Santiago (Chile)
  38. Stanford Univ., Stanford, CA (United States); Search for Extraterrestrial Intelligence Institute, Mountain View, CA (United States)
  39. Univ. Space Research Assoc., NASA/Armstrong Flight Research Center, Palmdale, CA (United States); Gemini Observatory, La Serena (Chile)
  40. National Research Council of Canada, Herzberg Institute of Astrophysics, Victoria, BC (Canada)
  41. Cornell Univ., Ithaca, NY (United States)
  42. Univ. of Toledo, Toledo, OH (United States)
  43. California Inst. of Technology (CalTech), Pasadena, CA (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1258658
Alternate Identifier(s):
OSTI ID: 1274051
Report Number(s):
LA-UR-15-24933; LLNL-JRNL-678639
Journal ID: ISSN 0036-8075
Grant/Contract Number:  
AC52-06NA25396; AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 350; Journal Issue: 6256; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Macintosh, B., Graham, J. R., Barman, T., De Rosa, R. J., Konopacky, Q., Marley, M. S., Marois, C., Nielsen, E. L., Pueyo, L., Rajan, A., Rameau, J., Saumon, D., Wang, J. J., Patience, J., Ammons, M., Arriaga, P., Artigau, E., Beckwith, S., Brewster, J., Bruzzone, S., Bulger, J., Burningham, B., Burrows, A. S., Chen, C., Chiang, E., Chilcote, J. K., Dawson, R. I., Dong, R., Doyon, R., Draper, Z. H., Duchene, G., Esposito, T. M., Fabrycky, D., Fitzgerald, M. P., Follette, K. B., Fortney, J. J., Gerard, B., Goodsell, S., Greenbaum, A. Z., Hibon, P., Hinkley, S., Cotten, T. H., Hung, L. -W., Ingraham, P., Johnson-Groh, M., Kalas, P., Lafreniere, D., Larkin, J. E., Lee, J., Line, M., Long, D., Maire, J., Marchis, F., Matthews, B. C., Max, C. E., Metchev, S., Millar-Blanchaer, M. A., Mittal, T., Morley, C. V., Morzinski, K. M., Murray-Clay, R., Oppenheimer, R., Palmer, D. W., Patel, R., Perrin, M. D., Poyneer, L. A., Rafikov, R. R., Rantakyro, F. T., Rice, E. L., Rojo, P., Rudy, A. R., Ruffio, J. -B., Ruiz, M. T., Sadakuni, N., Saddlemyer, L., Salama, M., Savransky, D., Schneider, A. C., Sivaramakrishnan, A., Song, I., Soummer, R., Thomas, S., Vasisht, G., Wallace, J. K., Ward-Duong, K., Wiktorowicz, S. J., Wolff, S. G., and Zuckerman, B. Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager. United States: N. p., 2015. Web. doi:10.1126/science.aac5891.
Macintosh, B., Graham, J. R., Barman, T., De Rosa, R. J., Konopacky, Q., Marley, M. S., Marois, C., Nielsen, E. L., Pueyo, L., Rajan, A., Rameau, J., Saumon, D., Wang, J. J., Patience, J., Ammons, M., Arriaga, P., Artigau, E., Beckwith, S., Brewster, J., Bruzzone, S., Bulger, J., Burningham, B., Burrows, A. S., Chen, C., Chiang, E., Chilcote, J. K., Dawson, R. I., Dong, R., Doyon, R., Draper, Z. H., Duchene, G., Esposito, T. M., Fabrycky, D., Fitzgerald, M. P., Follette, K. B., Fortney, J. J., Gerard, B., Goodsell, S., Greenbaum, A. Z., Hibon, P., Hinkley, S., Cotten, T. H., Hung, L. -W., Ingraham, P., Johnson-Groh, M., Kalas, P., Lafreniere, D., Larkin, J. E., Lee, J., Line, M., Long, D., Maire, J., Marchis, F., Matthews, B. C., Max, C. E., Metchev, S., Millar-Blanchaer, M. A., Mittal, T., Morley, C. V., Morzinski, K. M., Murray-Clay, R., Oppenheimer, R., Palmer, D. W., Patel, R., Perrin, M. D., Poyneer, L. A., Rafikov, R. R., Rantakyro, F. T., Rice, E. L., Rojo, P., Rudy, A. R., Ruffio, J. -B., Ruiz, M. T., Sadakuni, N., Saddlemyer, L., Salama, M., Savransky, D., Schneider, A. C., Sivaramakrishnan, A., Song, I., Soummer, R., Thomas, S., Vasisht, G., Wallace, J. K., Ward-Duong, K., Wiktorowicz, S. J., Wolff, S. G., & Zuckerman, B. Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager. United States. https://doi.org/10.1126/science.aac5891
Macintosh, B., Graham, J. R., Barman, T., De Rosa, R. J., Konopacky, Q., Marley, M. S., Marois, C., Nielsen, E. L., Pueyo, L., Rajan, A., Rameau, J., Saumon, D., Wang, J. J., Patience, J., Ammons, M., Arriaga, P., Artigau, E., Beckwith, S., Brewster, J., Bruzzone, S., Bulger, J., Burningham, B., Burrows, A. S., Chen, C., Chiang, E., Chilcote, J. K., Dawson, R. I., Dong, R., Doyon, R., Draper, Z. H., Duchene, G., Esposito, T. M., Fabrycky, D., Fitzgerald, M. P., Follette, K. B., Fortney, J. J., Gerard, B., Goodsell, S., Greenbaum, A. Z., Hibon, P., Hinkley, S., Cotten, T. H., Hung, L. -W., Ingraham, P., Johnson-Groh, M., Kalas, P., Lafreniere, D., Larkin, J. E., Lee, J., Line, M., Long, D., Maire, J., Marchis, F., Matthews, B. C., Max, C. E., Metchev, S., Millar-Blanchaer, M. A., Mittal, T., Morley, C. V., Morzinski, K. M., Murray-Clay, R., Oppenheimer, R., Palmer, D. W., Patel, R., Perrin, M. D., Poyneer, L. A., Rafikov, R. R., Rantakyro, F. T., Rice, E. L., Rojo, P., Rudy, A. R., Ruffio, J. -B., Ruiz, M. T., Sadakuni, N., Saddlemyer, L., Salama, M., Savransky, D., Schneider, A. C., Sivaramakrishnan, A., Song, I., Soummer, R., Thomas, S., Vasisht, G., Wallace, J. K., Ward-Duong, K., Wiktorowicz, S. J., Wolff, S. G., and Zuckerman, B. Fri . "Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager". United States. https://doi.org/10.1126/science.aac5891. https://www.osti.gov/servlets/purl/1258658.
@article{osti_1258658,
title = {Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager},
author = {Macintosh, B. and Graham, J. R. and Barman, T. and De Rosa, R. J. and Konopacky, Q. and Marley, M. S. and Marois, C. and Nielsen, E. L. and Pueyo, L. and Rajan, A. and Rameau, J. and Saumon, D. and Wang, J. J. and Patience, J. and Ammons, M. and Arriaga, P. and Artigau, E. and Beckwith, S. and Brewster, J. and Bruzzone, S. and Bulger, J. and Burningham, B. and Burrows, A. S. and Chen, C. and Chiang, E. and Chilcote, J. K. and Dawson, R. I. and Dong, R. and Doyon, R. and Draper, Z. H. and Duchene, G. and Esposito, T. M. and Fabrycky, D. and Fitzgerald, M. P. and Follette, K. B. and Fortney, J. J. and Gerard, B. and Goodsell, S. and Greenbaum, A. Z. and Hibon, P. and Hinkley, S. and Cotten, T. H. and Hung, L. -W. and Ingraham, P. and Johnson-Groh, M. and Kalas, P. and Lafreniere, D. and Larkin, J. E. and Lee, J. and Line, M. and Long, D. and Maire, J. and Marchis, F. and Matthews, B. C. and Max, C. E. and Metchev, S. and Millar-Blanchaer, M. A. and Mittal, T. and Morley, C. V. and Morzinski, K. M. and Murray-Clay, R. and Oppenheimer, R. and Palmer, D. W. and Patel, R. and Perrin, M. D. and Poyneer, L. A. and Rafikov, R. R. and Rantakyro, F. T. and Rice, E. L. and Rojo, P. and Rudy, A. R. and Ruffio, J. -B. and Ruiz, M. T. and Sadakuni, N. and Saddlemyer, L. and Salama, M. and Savransky, D. and Schneider, A. C. and Sivaramakrishnan, A. and Song, I. and Soummer, R. and Thomas, S. and Vasisht, G. and Wallace, J. K. and Ward-Duong, K. and Wiktorowicz, S. J. and Wolff, S. G. and Zuckerman, B.},
abstractNote = {Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric compositions and luminosities, which are influenced by their formation mechanisms. Using the Gemini Planet Imager, we discovered a planet orbiting the ~20-million-year-old star 51 Eridani at a projected separation of 13 astronomical units. Near-infrared observations show a spectrum with strong methane and water-vapor absorption. Modeling of the spectra and photometry yields a luminosity (normalized by the luminosity of the Sun) of 1.6 to 4.0 × 10–6 and an effective temperature of 600 to 750 K. For this age and luminosity, “hot-start” formation models indicate a mass twice that of Jupiter. Furthermore, this planet also has a sufficiently low luminosity to be consistent with the “cold-start” core-accretion process that may have formed Jupiter.},
doi = {10.1126/science.aac5891},
journal = {Science},
number = 6256,
volume = 350,
place = {United States},
year = {Fri Oct 02 00:00:00 EDT 2015},
month = {Fri Oct 02 00:00:00 EDT 2015}
}

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  • The Astronomical Journal, Vol. 158, Issue 1
  • DOI: 10.3847/1538-3881/ab16e9

Zodiacal Exoplanets in Time (ZEIT). IX. A Flat Transmission Spectrum and a Highly Eccentric Orbit for the Young Neptune K2-25b as Revealed by Spitzer
journal, January 2020

  • Thao, Pa Chia; Mann, Andrew W.; Johnson, Marshall C.
  • The Astronomical Journal, Vol. 159, Issue 1
  • DOI: 10.3847/1538-3881/ab579b

Data Reduction and Image Reconstruction Techniques for Non-redundant Masking
journal, November 2017


A Quantitative Comparison of Exoplanet Catalogs
text, January 2018


Spectral and atmospheric characterization of 51 Eridani b using VLT/SPHERE
text, January 2017


Supervised Machine Learning for Intercomparison of Model Grids of Brown Dwarfs: Application to GJ 570D and the Epsilon Indi B Binary System
text, January 2020

  • Oreshenko, Maria; Kitzmann, Daniel; Márquez-Neila, Pablo
  • American Astronomical Society
  • DOI: 10.7892/boris.142620

Spectral and atmospheric characterization of 51 Eridani b using VLT/SPHERE
journal, July 2017


Visible and Near-infrared Laboratory Demonstration of a Simplified Pyramid Wavefront Sensor
journal, March 2019

  • Lozi, Julien; Jovanovic, Nemanja; Guyon, Olivier
  • Publications of the Astronomical Society of the Pacific, Vol. 131, Issue 998
  • DOI: 10.1088/1538-3873/ab046a

The metal-rich atmosphere of the exo-Neptune HAT-P-26b
journal, March 2019

  • MacDonald, Ryan J.; Madhusudhan, Nikku
  • Monthly Notices of the Royal Astronomical Society, Vol. 486, Issue 1
  • DOI: 10.1093/mnras/stz789

The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics from 10 to 100 au
text, January 2019

  • Nielsen, El; De Rosa, Rj; Macintosh, B.
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.39168

Characterizing 51 Eri b from 1 to 5 μ m: A Partly Cloudy Exoplanet
journal, June 2017

  • Rajan, Abhijith; Rameau, Julien; Rosa, Robert J. De
  • The Astronomical Journal, Vol. 154, Issue 1
  • DOI: 10.3847/1538-3881/aa74db

Direct Imaging of the HD 35841 Debris Disk: A Polarized Dust Ring from Gemini Planet Imager and an Outer Halo from HST /STIS
journal, July 2018

  • Esposito, Thomas M.; Duchêne, Gaspard; Kalas, Paul
  • The Astronomical Journal, Vol. 156, Issue 2
  • DOI: 10.3847/1538-3881/aacbc9

Atmospheric Characterization of Directly Imaged Exoplanets with JWST /MIRI
journal, November 2018

  • Danielski, Camilla; Baudino, Jean-Loup; Lagage, Pierre-Olivier
  • The Astronomical Journal, Vol. 156, Issue 6
  • DOI: 10.3847/1538-3881/aae651

The LEECH Exoplanet Imaging Survey: Limits on Planet Occurrence Rates under Conservative Assumptions
journal, November 2018

  • Stone, Jordan M.; Skemer, Andrew J.; Hinz, Philip M.
  • The Astronomical Journal, Vol. 156, Issue 6
  • DOI: 10.3847/1538-3881/aaec00

Constraints on the Occurrence and Distribution of 1–20 M Jup Companions to Stars at Separations of 5–5000 au from a Compilation of Direct Imaging Surveys
journal, October 2019

  • Baron, Frédérique; Lafrenière, David; Artigau, Étienne
  • The Astronomical Journal, Vol. 158, Issue 5
  • DOI: 10.3847/1538-3881/ab4130

A Self-consistent Cloud Model for Brown Dwarfs and Young Giant Exoplanets: Comparison with Photometric and Spectroscopic Observations
journal, February 2018


BANYAN. XI. The BANYAN Σ Multivariate Bayesian Algorithm to Identify Members of Young Associations with 150 pc
journal, March 2018

  • Gagné, Jonathan; Mamajek, Eric E.; Malo, Lison
  • The Astrophysical Journal, Vol. 856, Issue 1
  • DOI: 10.3847/1538-4357/aaae09

Constraining Gas-phase Carbon, Oxygen, and Nitrogen in the IM Lup Protoplanetary Disk
journal, October 2018

  • Ilsedore Cleeves, L.; Öberg, Karin I.; Wilner, David J.
  • The Astrophysical Journal, Vol. 865, Issue 2
  • DOI: 10.3847/1538-4357/aade96

Discovery of a warm, dusty giant planet around HIP 65426
text, January 2017


The evolution of gas giant entropy during formation by runaway accretion
text, January 2017

  • Berardo, David; Cumming, Andrew; Marleau, Gabriel-Dominique
  • Institute of Physics Publishing IOP
  • DOI: 10.7892/boris.112775

Evolutionary models of cold and low-mass planets: cooling curves, magnitudes, and detectability
text, January 2019


Sulfur Hazes in Giant Exoplanet Atmospheres: Impacts on Reflected Light Spectra
journal, March 2017


GPI Spectra of HR 8799 c, d, and e from 1.5 to 2.4 μ m with KLIP Forward Modeling
journal, May 2018

  • Greenbaum, Alexandra Z.; Pueyo, Laurent; Ruffio, Jean-Baptiste
  • The Astronomical Journal, Vol. 155, Issue 6
  • DOI: 10.3847/1538-3881/aabcb8

An L+T Spectral Binary with Possible AB Doradus Kinematics
journal, February 2018

  • Gagliuffi, Daniella C. Bardalez; Gagné, Jonathan; Faherty, Jacqueline K.
  • The Astrophysical Journal, Vol. 854, Issue 2
  • DOI: 10.3847/1538-4357/aaa961

A chemical survey of exoplanets with ARIEL
text, January 2018

  • Giovanna, Tinetti,; Pierre, Drossart,; Paul, Eccleston,
  • Springer
  • DOI: 10.5167/uzh-157103

Imaging Extrasolar Giant Planets
text, January 2016


The Hawaii Infrared Parallax Program. II. Young Ultracool Field Dwarfs
text, January 2016


An L+T Spectral Binary with Possible AB Doradus Kinematics
text, January 2018


GPI Spectroscopy of the Mass, Age, and Metallicity Benchmark Brown Dwarf HD 4747 B
text, January 2018


Characterization of Exoplanet Atmospheres with the Optical Coronagraph on WFIRST
text, January 2018


Spitzer Light Curves of the Young, Planetary-Mass TW Hya Members 2MASS J11193254-1137466AB and WISEA J114724.10-204021.3
text, January 2018


SAFARI I: A SPHERE discovery of a super metal-rich M dwarf companion to the star HD 86006
text, January 2018


MagAO-X: project status and first laboratory results
preprint, January 2018


Constraining Gas-Phase Carbon, Oxygen, and Nitrogen in the IM Lup Protoplanetary Disk
text, January 2018


Atmospheric characterization of directly imaged exoplanets with JWST/MIRI
text, January 2018


STIM map: detection map for exoplanets imaging beyond asymptotic Gaussian residual speckle noise
text, January 2018


Single conjugate adaptive optics for the ELT instrument METIS
text, January 2018


The GJ 504 system revisited: Combining interferometric, radial velocity, and high contrast imaging data
text, January 2018


Chinese Medicinal Leech: Ethnopharmacology, Phytochemistry, and Pharmacological Activities
journal, January 2016

  • Dong, Han; Ren, Ji-Xiang; Wang, Jing-Jing
  • Evidence-Based Complementary and Alternative Medicine, Vol. 2016
  • DOI: 10.1155/2016/7895935

Seeing the unseen of Chinese herbal medicine processing (Paozhi): advances in new perspectives
journal, January 2018