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Title: SCExAO and GPI Y JH band photometry and integral field spectroscopy of the young brown dwarf companion to HD 1160

Here, we present high signal-to-noise ratio, precise Y JH photometry and Y band (0.957–1.120 μm) spectroscopy of HD 1160 B, a young substellar companion discovered from the Gemini NICI Planet Finding Campaign using the Subaru Coronagraphic Extreme Adaptive Optics instrument and the Gemini Planet Imager. HD 1160 B has typical mid-M dwarf-like infrared colors and a spectral type of M5.5$${}_{-0.5}^{+1.0}$$, where the blue edge of our Y band spectrum rules out earlier spectral types. Atmospheric modeling suggests HD 1160 B has an effective temperature of 3000–3100 K, a surface gravity of log g = 4–4.5, a radius of 1.55 ± 0.10 R J, and a luminosity of log L/L = –2.76 ± 0.05. Neither the primary's Hertzspring–Russell diagram position nor atmospheric modeling of HD 1160 B show evidence for a subsolar metallicity. Interpretation of the HD 1160 B spectroscopy depends on which stellar system components are used to estimate the age. Considering HD 1160 A, B and C jointly, we derive an age of 80–125 Myr, implying that HD 1160 B straddles the hydrogen-burning limit (70–90 M J). If we consider HD 1160 A alone, younger ages (20–125 Myr) and a brown dwarf-like mass (35–90 M J) are possible. Interferometric measurements of the primary, a precise Gaia parallax, and moderate-resolution spectroscopy can better constrain the system's age and how HD 1160 B fits within the context of (sub)stellar evolution.
Authors:
 [1] ; ORCiD logo [2] ;  [3] ; ORCiD logo [4] ;  [2] ;  [2] ;  [2] ;  [5] ; ORCiD logo [6] ; ORCiD logo [7] ; ORCiD logo [8] ;  [9] ;  [10] ;  [7] ;  [11] ;  [11] ;  [12] ;  [13] ; ORCiD logo [14] ;  [13] more »;  [15] ;  [16] ; ORCiD logo [2] ;  [17] ;  [18] ;  [12] ; ORCiD logo [19] ;  [17] ;  [17] ; ORCiD logo [20] ;  [17] ; ORCiD logo [21] ;  [22] ;  [15] ;  [23] ;  [17] ; ORCiD logo [24] ;  [2] ; ORCiD logo [2] ;  [25] ;  [26] ;  [11] ;  [17] ;  [27] ;  [28] ; ORCiD logo [28] ;  [2] ; ORCiD logo [17] ; ORCiD logo [29] ;  [30] ;  [31] ; ORCiD logo [32] ;  [7] ; ORCiD logo [17] ;  [33] « less
  1. Lowell Observatory, Flagstaff, AZ (United States); Vanderbilt Univ., Nashville, TN (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. National Astronomical Observatory of Japan, Hilo, HI (United States)
  3. National Astronomical Observatory of Japan, Hilo, HI (United States); Astrobiology Center of NINS, Tokyo (Japan); Univ. of Arizona, Tucson, AZ (United States)
  4. Vanderbilt Univ., Nashville, TN (United States); Fisk Univ., Nashville, TN (United States)
  5. Univ. of Arizona, Tucson, AZ (United States)
  6. NASA Ames Research Center, Moffett Field, CA (United States)
  7. Japan Aerospace Exploration Agency (JAXA), Kanagawa (Japan)
  8. Univ. of Tokyo, Tokyo (Japan)
  9. Astrobiology Center of NINS, Tokyo (Japan); National Astronomical Observatory of Japan, Tokyo (Japan); Tokyo Institute of Technology, Tokyo (Japan)
  10. College of Charleston, Charleston, SC (United States)
  11. Astrobiology Center of NINS, Tokyo (Japan); National Astronomical Observatory of Japan, Tokyo (Japan)
  12. Univ. de Nice-Sophia Antipolis, Nice Cedex (France)
  13. Max Planck Institute for Astronomy, Heidelberg (Germany)
  14. Institute for Advanced Study, Princeton, NJ (United States)
  15. Univ.-Sternwarte Munchen, Munchen (Germany)
  16. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Eureka Scientific, Oakland, CA (United States); Goddard Center for Astrobiology (United States)
  17. National Astronomical Observatory of Japan, Tokyo (Japan)
  18. National Astronomical Observatory of Japan, Hilo, HI (United States); SOKENDAI (The Graduate Univ. of Advanced Studies), Tokyo (Japan)
  19. Univ. of Hawaii, Honolulu, HI (United States)
  20. Stockholm Univ., Stockholm (Sweden)
  21. Princeton Univ., Princeton, NJ (United States)
  22. Osaka Univ., Osaka (Japan)
  23. Hiroshima Univ., Hiroshima (Japan)
  24. Space Telescope Science Institute, Baltimore, MD (United States); Johns Hopkins Univ., Baltimore, MD (United States)
  25. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  26. Univ. of Tokyo, Tokyo (Japan); SOKENDAI (The Graduate Univ. for Advanced Studies), Tokyo (Japan)
  27. National Astronomical Observatory of Japan, Tokyo (Japan); California Inst. of Technology (CalTech), Pasadena, CA (United States)
  28. Academia Sinica, Taipei (Taiwan)
  29. Swiss Federal Institute of Technology (ETH Zurich), Zurich (Switzerland)
  30. Princeton Univ., Princeton, NJ (United States); Swiss Federal Institute of Technology (ETH Zurich), Zurich (Switzerland)
  31. Hokkaido Univ., Hokkaido (Japan)
  32. Univ. of Oklahoma, Norman, OK (United States)
  33. Astrobiology Center of NINS, Tokyo (Japan); Univ. of Tokyo, Tokyo (Japan); National Astronomical Observatory of Japan, Tokyo (Japan)
Publication Date:
Report Number(s):
LLNL-JRNL-701012
Journal ID: ISSN 1538-4357; TRN: US1701011
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 834; Journal Issue: 2; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; instrumentation: adaptive optics; planetary systems; stars: low-mass; techniques: imaging spectroscopy
OSTI Identifier:
1342064

Garcia, Eugenio Victor, Currie, Thayne, Guyon, Olivier, Stassun, Keivan G., Jovanovic, Nemanja, Lozi, Julien, Kudo, Tomoyuki, Doughty, Danielle, Schlieder, Josh, Kwon, J., Uyama, T., Kuzuhara, M., Carson, J. C., Nakagawa, T., Hashimoto, J., Kusakabe, N., Abe, L., Brandner, W., Brandt, T. D., Feldt, M., Goto, M., Grady, C. A., Hayano, Y., Hayashi, M., Hayashi, S. S., Henning, T., Hodapp, K. W., Ishii, M., Iye, M., Janson, M., Kandori, R., Knapp, G. R., Matsuo, T., McElwain, M. W., Miyama, S., Morino, J. -I., Moro-Martin, A., Nishimura, T., Pyo, T. -S., Serabyn, E., Suenaga, T., Suto, H., Suzuki, R., Takahashi, Y. H., Takami, H., Takami, M., Takato, N., Terada, H., Thalmann, C., Turner, E. L., Watanabe, M., Wisniewski, J., Yamada, T., Usuda, T., and Tamura, M.. SCExAO and GPI Y JH band photometry and integral field spectroscopy of the young brown dwarf companion to HD 1160. United States: N. p., Web. doi:10.3847/1538-4357/834/2/162.
Garcia, Eugenio Victor, Currie, Thayne, Guyon, Olivier, Stassun, Keivan G., Jovanovic, Nemanja, Lozi, Julien, Kudo, Tomoyuki, Doughty, Danielle, Schlieder, Josh, Kwon, J., Uyama, T., Kuzuhara, M., Carson, J. C., Nakagawa, T., Hashimoto, J., Kusakabe, N., Abe, L., Brandner, W., Brandt, T. D., Feldt, M., Goto, M., Grady, C. A., Hayano, Y., Hayashi, M., Hayashi, S. S., Henning, T., Hodapp, K. W., Ishii, M., Iye, M., Janson, M., Kandori, R., Knapp, G. R., Matsuo, T., McElwain, M. W., Miyama, S., Morino, J. -I., Moro-Martin, A., Nishimura, T., Pyo, T. -S., Serabyn, E., Suenaga, T., Suto, H., Suzuki, R., Takahashi, Y. H., Takami, H., Takami, M., Takato, N., Terada, H., Thalmann, C., Turner, E. L., Watanabe, M., Wisniewski, J., Yamada, T., Usuda, T., & Tamura, M.. SCExAO and GPI Y JH band photometry and integral field spectroscopy of the young brown dwarf companion to HD 1160. United States. doi:10.3847/1538-4357/834/2/162.
Garcia, Eugenio Victor, Currie, Thayne, Guyon, Olivier, Stassun, Keivan G., Jovanovic, Nemanja, Lozi, Julien, Kudo, Tomoyuki, Doughty, Danielle, Schlieder, Josh, Kwon, J., Uyama, T., Kuzuhara, M., Carson, J. C., Nakagawa, T., Hashimoto, J., Kusakabe, N., Abe, L., Brandner, W., Brandt, T. D., Feldt, M., Goto, M., Grady, C. A., Hayano, Y., Hayashi, M., Hayashi, S. S., Henning, T., Hodapp, K. W., Ishii, M., Iye, M., Janson, M., Kandori, R., Knapp, G. R., Matsuo, T., McElwain, M. W., Miyama, S., Morino, J. -I., Moro-Martin, A., Nishimura, T., Pyo, T. -S., Serabyn, E., Suenaga, T., Suto, H., Suzuki, R., Takahashi, Y. H., Takami, H., Takami, M., Takato, N., Terada, H., Thalmann, C., Turner, E. L., Watanabe, M., Wisniewski, J., Yamada, T., Usuda, T., and Tamura, M.. 2017. "SCExAO and GPI Y JH band photometry and integral field spectroscopy of the young brown dwarf companion to HD 1160". United States. doi:10.3847/1538-4357/834/2/162. https://www.osti.gov/servlets/purl/1342064.
@article{osti_1342064,
title = {SCExAO and GPI Y JH band photometry and integral field spectroscopy of the young brown dwarf companion to HD 1160},
author = {Garcia, Eugenio Victor and Currie, Thayne and Guyon, Olivier and Stassun, Keivan G. and Jovanovic, Nemanja and Lozi, Julien and Kudo, Tomoyuki and Doughty, Danielle and Schlieder, Josh and Kwon, J. and Uyama, T. and Kuzuhara, M. and Carson, J. C. and Nakagawa, T. and Hashimoto, J. and Kusakabe, N. and Abe, L. and Brandner, W. and Brandt, T. D. and Feldt, M. and Goto, M. and Grady, C. A. and Hayano, Y. and Hayashi, M. and Hayashi, S. S. and Henning, T. and Hodapp, K. W. and Ishii, M. and Iye, M. and Janson, M. and Kandori, R. and Knapp, G. R. and Matsuo, T. and McElwain, M. W. and Miyama, S. and Morino, J. -I. and Moro-Martin, A. and Nishimura, T. and Pyo, T. -S. and Serabyn, E. and Suenaga, T. and Suto, H. and Suzuki, R. and Takahashi, Y. H. and Takami, H. and Takami, M. and Takato, N. and Terada, H. and Thalmann, C. and Turner, E. L. and Watanabe, M. and Wisniewski, J. and Yamada, T. and Usuda, T. and Tamura, M.},
abstractNote = {Here, we present high signal-to-noise ratio, precise Y JH photometry and Y band (0.957–1.120 μm) spectroscopy of HD 1160 B, a young substellar companion discovered from the Gemini NICI Planet Finding Campaign using the Subaru Coronagraphic Extreme Adaptive Optics instrument and the Gemini Planet Imager. HD 1160 B has typical mid-M dwarf-like infrared colors and a spectral type of M5.5${}_{-0.5}^{+1.0}$, where the blue edge of our Y band spectrum rules out earlier spectral types. Atmospheric modeling suggests HD 1160 B has an effective temperature of 3000–3100 K, a surface gravity of log g = 4–4.5, a radius of 1.55 ± 0.10 R J, and a luminosity of log L/L ⊙ = –2.76 ± 0.05. Neither the primary's Hertzspring–Russell diagram position nor atmospheric modeling of HD 1160 B show evidence for a subsolar metallicity. Interpretation of the HD 1160 B spectroscopy depends on which stellar system components are used to estimate the age. Considering HD 1160 A, B and C jointly, we derive an age of 80–125 Myr, implying that HD 1160 B straddles the hydrogen-burning limit (70–90 M J). If we consider HD 1160 A alone, younger ages (20–125 Myr) and a brown dwarf-like mass (35–90 M J) are possible. Interferometric measurements of the primary, a precise Gaia parallax, and moderate-resolution spectroscopy can better constrain the system's age and how HD 1160 B fits within the context of (sub)stellar evolution.},
doi = {10.3847/1538-4357/834/2/162},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 834,
place = {United States},
year = {2017},
month = {1}
}