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Title: Imaging an 80 au radius dust ring around the F5V star HD 157587

Here, we present H-band near-infrared polarimetric imaging observations of the F5V star HD 157587 obtained with the Gemini Planet Imager (GPI) that reveal the debris disk as a bright ring structure at a separation of ~80–100 au. The new GPI data complement recent Hubble Space Telescope /STIS observations that show the disk extending out to over 500 au. The GPI image displays a strong asymmetry along the projected minor axis as well as a fainter asymmetry along the projected major axis. We associate the minor and major axis asymmetries with polarized forward scattering and a possible stellocentric offset, respectively. To constrain the disk geometry, we fit two separate disk models to the polarized image, each using a different scattering phase function. Both models favor a disk inclination of ~70° and a 1.5 ± 0.6 au stellar offset in the plane of the sky along the projected major axis of the disk. We find that the stellar offset in the disk plane, perpendicular to the projected major axis is degenerate with the form of the scattering phase function and remains poorly constrained. The disk is not recovered in total intensity due in part to strong adaptive optics residuals, but we recovermore » three point sources. Considering the system's proximity to the galactic plane and the point sources' positions relative to the disk, we consider it likely that they are background objects and unrelated to the disk's offset from the star.« less
Authors:
ORCiD logo [1] ;  [2] ;  [3] ;  [2] ;  [4] ;  [5] ; ORCiD logo [6] ; ORCiD logo [1] ; ORCiD logo [7] ; ORCiD logo [8] ; ORCiD logo [9] ;  [10] ; ORCiD logo [11] ;  [12] ;  [13] ; ORCiD logo [6] ;  [1] ; ORCiD logo [14] ;  [2] ;  [15] more »; ORCiD logo [16] ; ORCiD logo [2] ;  [17] ;  [10] ; ORCiD logo [16] ; ORCiD logo [18] ; ORCiD logo [19] ; ORCiD logo [20] ;  [17] ;  [21] ; ORCiD logo [22] ;  [23] ;  [17] ; ORCiD logo [10] ;  [1] ; ORCiD logo [24] ; ORCiD logo [25] ; ORCiD logo [16] ; ORCiD logo [16] ; ORCiD logo [26] ;  [9] ;  [27] ;  [9] ;  [6] ; ORCiD logo [27] ;  [15] ; ORCiD logo [28] ; ORCiD logo [29] ;  [30] ; ORCiD logo [6] ; ORCiD logo [14] ; ORCiD logo [6] ;  [21] ;  [24] ; ORCiD logo [31] ;  [27] ; ORCiD logo [32] ; ORCiD logo [18] « less
  1. Univ. of Toronto, Toronto, ON (Canada)
  2. Univ. of California, Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States); SETI Institute, Mountain View, CA (United States)
  4. Univ. of California, Berkeley, CA (United States); Univ. Grenoble Alpes/CNRS, Grenoble (France)
  5. SETI Institute, Mountain View, CA (United States); Stanford Univ., Stanford, CA (United States)
  6. Space Telescope Science Institute, Baltimore, MD (United States)
  7. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  8. The Univ. of Western Ontario, London, ON (Canada); Stony Brook Univ., Stony Brook, NY (United States)
  9. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  10. Stanford Univ., Stanford, CA (United States)
  11. Univ. of Arizona, Tucson, AZ (United States)
  12. The Univ. of Western Ontario, London, ON (Canada)
  13. Subaru Telescope, Hilo, HI (United States)
  14. Univ. of Georgia, Athens, GA (United States)
  15. Univ. de Montreal, Montreal, QC (Canada)
  16. Univ. of Victoria, Victoria, BC (Canada); National Research Council of Canada Herzberg, Victoria, BC (Canada)
  17. Univ. of California, Los Angeles, CA (United States)
  18. Johns Hopkins Univ., Baltimore, MD (United States)
  19. European Southern Observatory, Santiago (Chile)
  20. Univ. of Exeter, Exeter (United Kingdom)
  21. Large Synoptic Survey Telescope, Tucson, AZ (United States)
  22. Univ. of Victoria, Victoria, BC (Canada)
  23. Univ. of California, San Diego, La Jolla, CA (United States)
  24. SETI Institute, Mountain View, CA (United States)
  25. NASA Ames Research Center (ARC), Moffett Field, CA (United States)
  26. American Museum of Natural History, New York, NY (United States)
  27. Arizona State Univ., Tempe, AZ (United States)
  28. Gemini Observatory, La Serena (Chile)
  29. Cornell Univ., Ithaca, NY (United States)
  30. Univ. of Toledo, Toledo, OH (United States)
  31. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  32. The Aerospace Corp., El Segundo, CA (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-717861
Journal ID: ISSN 1538-3881; TRN: US1701350
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Astronomical Journal (Online)
Additional Journal Information:
Journal Name: Astronomical Journal (Online); Journal Volume: 152; Journal Issue: 5; Journal ID: ISSN 1538-3881
Publisher:
IOP Publishing
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; planet; disk interactions; stars: individual (HD 157587); techniques: polarimetric
OSTI Identifier:
1352125

Millar-Blanchaer, Maxwell A., Wang, Jason J., Kalas, Paul, Graham, James R., Duchêne, Gaspard, Nielsen, Eric L., Perrin, Marshall, Moon, Dae -Sik, Padgett, Deborah, Metchev, Stanimir, Ammons, S. Mark, Bailey, Vanessa P., Barman, Travis, Bruzzone, Sebastian, Bulger, Joanna, Chen, Christine H., Chilcote, Jeffrey, Cotten, Tara, De Rosa, Robert J., Doyon, Rene, Draper, Zachary H., Esposito, Thomas M., Fitzgerald, Michael P., Follette, Katherine B., Gerard, Benjamin L., Greenbaum, Alexandra Z., Hibon, Pascale, Hinkley, Sasha, Hung, Li -Wei, Ingraham, Patrick, Johnson-Groh, Mara, Konopacky, Quinn, Larkin, James E., Macintosh, Bruce, Maire, Jérôme, Marchis, Franck, Marley, Mark S., Marois, Christian, Matthews, Brenda C., Oppenheimer, Rebecca, Palmer, David, Patience, Jennifer, Poyneer, Lisa, Pueyo, Laurent, Rajan, Abhijith, Rameau, Julien, Rantakyrö, Fredrik T., Savransky, Dmitry, Schneider, Adam C., Sivaramakrishnan, Anand, Song, Inseok, Soummer, Remi, Thomas, Sandrine, Vega, David, Wallace, J. Kent, Ward-Duong, Kimberly, Wiktorowicz, Sloane, and Wolff, Schuyler. Imaging an 80 au radius dust ring around the F5V star HD 157587. United States: N. p., Web. doi:10.3847/0004-6256/152/5/128.
Millar-Blanchaer, Maxwell A., Wang, Jason J., Kalas, Paul, Graham, James R., Duchêne, Gaspard, Nielsen, Eric L., Perrin, Marshall, Moon, Dae -Sik, Padgett, Deborah, Metchev, Stanimir, Ammons, S. Mark, Bailey, Vanessa P., Barman, Travis, Bruzzone, Sebastian, Bulger, Joanna, Chen, Christine H., Chilcote, Jeffrey, Cotten, Tara, De Rosa, Robert J., Doyon, Rene, Draper, Zachary H., Esposito, Thomas M., Fitzgerald, Michael P., Follette, Katherine B., Gerard, Benjamin L., Greenbaum, Alexandra Z., Hibon, Pascale, Hinkley, Sasha, Hung, Li -Wei, Ingraham, Patrick, Johnson-Groh, Mara, Konopacky, Quinn, Larkin, James E., Macintosh, Bruce, Maire, Jérôme, Marchis, Franck, Marley, Mark S., Marois, Christian, Matthews, Brenda C., Oppenheimer, Rebecca, Palmer, David, Patience, Jennifer, Poyneer, Lisa, Pueyo, Laurent, Rajan, Abhijith, Rameau, Julien, Rantakyrö, Fredrik T., Savransky, Dmitry, Schneider, Adam C., Sivaramakrishnan, Anand, Song, Inseok, Soummer, Remi, Thomas, Sandrine, Vega, David, Wallace, J. Kent, Ward-Duong, Kimberly, Wiktorowicz, Sloane, & Wolff, Schuyler. Imaging an 80 au radius dust ring around the F5V star HD 157587. United States. doi:10.3847/0004-6256/152/5/128.
Millar-Blanchaer, Maxwell A., Wang, Jason J., Kalas, Paul, Graham, James R., Duchêne, Gaspard, Nielsen, Eric L., Perrin, Marshall, Moon, Dae -Sik, Padgett, Deborah, Metchev, Stanimir, Ammons, S. Mark, Bailey, Vanessa P., Barman, Travis, Bruzzone, Sebastian, Bulger, Joanna, Chen, Christine H., Chilcote, Jeffrey, Cotten, Tara, De Rosa, Robert J., Doyon, Rene, Draper, Zachary H., Esposito, Thomas M., Fitzgerald, Michael P., Follette, Katherine B., Gerard, Benjamin L., Greenbaum, Alexandra Z., Hibon, Pascale, Hinkley, Sasha, Hung, Li -Wei, Ingraham, Patrick, Johnson-Groh, Mara, Konopacky, Quinn, Larkin, James E., Macintosh, Bruce, Maire, Jérôme, Marchis, Franck, Marley, Mark S., Marois, Christian, Matthews, Brenda C., Oppenheimer, Rebecca, Palmer, David, Patience, Jennifer, Poyneer, Lisa, Pueyo, Laurent, Rajan, Abhijith, Rameau, Julien, Rantakyrö, Fredrik T., Savransky, Dmitry, Schneider, Adam C., Sivaramakrishnan, Anand, Song, Inseok, Soummer, Remi, Thomas, Sandrine, Vega, David, Wallace, J. Kent, Ward-Duong, Kimberly, Wiktorowicz, Sloane, and Wolff, Schuyler. 2016. "Imaging an 80 au radius dust ring around the F5V star HD 157587". United States. doi:10.3847/0004-6256/152/5/128. https://www.osti.gov/servlets/purl/1352125.
@article{osti_1352125,
title = {Imaging an 80 au radius dust ring around the F5V star HD 157587},
author = {Millar-Blanchaer, Maxwell A. and Wang, Jason J. and Kalas, Paul and Graham, James R. and Duchêne, Gaspard and Nielsen, Eric L. and Perrin, Marshall and Moon, Dae -Sik and Padgett, Deborah and Metchev, Stanimir and Ammons, S. Mark and Bailey, Vanessa P. and Barman, Travis and Bruzzone, Sebastian and Bulger, Joanna and Chen, Christine H. and Chilcote, Jeffrey and Cotten, Tara and De Rosa, Robert J. and Doyon, Rene and Draper, Zachary H. and Esposito, Thomas M. and Fitzgerald, Michael P. and Follette, Katherine B. and Gerard, Benjamin L. and Greenbaum, Alexandra Z. and Hibon, Pascale and Hinkley, Sasha and Hung, Li -Wei and Ingraham, Patrick and Johnson-Groh, Mara and Konopacky, Quinn and Larkin, James E. and Macintosh, Bruce and Maire, Jérôme and Marchis, Franck and Marley, Mark S. and Marois, Christian and Matthews, Brenda C. and Oppenheimer, Rebecca and Palmer, David and Patience, Jennifer and Poyneer, Lisa and Pueyo, Laurent and Rajan, Abhijith and Rameau, Julien and Rantakyrö, Fredrik T. and Savransky, Dmitry and Schneider, Adam C. and Sivaramakrishnan, Anand and Song, Inseok and Soummer, Remi and Thomas, Sandrine and Vega, David and Wallace, J. Kent and Ward-Duong, Kimberly and Wiktorowicz, Sloane and Wolff, Schuyler},
abstractNote = {Here, we present H-band near-infrared polarimetric imaging observations of the F5V star HD 157587 obtained with the Gemini Planet Imager (GPI) that reveal the debris disk as a bright ring structure at a separation of ~80–100 au. The new GPI data complement recent Hubble Space Telescope /STIS observations that show the disk extending out to over 500 au. The GPI image displays a strong asymmetry along the projected minor axis as well as a fainter asymmetry along the projected major axis. We associate the minor and major axis asymmetries with polarized forward scattering and a possible stellocentric offset, respectively. To constrain the disk geometry, we fit two separate disk models to the polarized image, each using a different scattering phase function. Both models favor a disk inclination of ~70° and a 1.5 ± 0.6 au stellar offset in the plane of the sky along the projected major axis of the disk. We find that the stellar offset in the disk plane, perpendicular to the projected major axis is degenerate with the form of the scattering phase function and remains poorly constrained. The disk is not recovered in total intensity due in part to strong adaptive optics residuals, but we recover three point sources. Considering the system's proximity to the galactic plane and the point sources' positions relative to the disk, we consider it likely that they are background objects and unrelated to the disk's offset from the star.},
doi = {10.3847/0004-6256/152/5/128},
journal = {Astronomical Journal (Online)},
number = 5,
volume = 152,
place = {United States},
year = {2016},
month = {10}
}