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Title: Gemini Planet Imager observations of the AU Microscopii debris disk: Asymmetries within one arcsecond

Abstract

We present Gemini Planet Imager (GPI) observations of AU Microscopii, a young M dwarf with an edge-on, dusty debris disk. Integral field spectroscopy and broadband imaging polarimetry were obtained during the commissioning of GPI. In our broadband imaging polarimetry observations, we detect the disk only in total intensity and find asymmetries in the morphology of the disk between the southeast (SE) and northwest (NW) sides. The SE side of the disk exhibits a bump at 1'' (10 AU projected separation) that is three times more vertically extended and three times fainter in peak surface brightness than the NW side at similar separations. This part of the disk is also vertically offset by 69 ± 30 mas to the northeast at 1'' when compared to the established disk midplane and is consistent with prior Atacama Large Millimeter/submillimeter Array and Hubble Space Telescope/Space Telescope Imaging Spectrograph observations. We see hints that the SE bump might be a result of detecting a horizontal sliver feature above the main disk that could be the disk backside. Alternatively, when including the morphology of the NW side, where the disk midplane is offset in the opposite direction ~50 mas between 0farcs4 and 1farcs2, the asymmetries suggestmore » a warp-like feature. Using our integral field spectroscopy data to search for planets, we are 50% complete for ~4 MJup planets at 4 AU. Lastly, we detect a source, resolved only along the disk plane, that could either be a candidate planetary mass companion or a compact clump in the disk.« less

Authors:
 [1];  [1];  [2];  [3];  [4];  [1];  [1];  [5];  [6];  [7];  [2];  [1];  [8];  [9];  [10];  [11];  [12];  [12];  [13];  [14] more »;  [7];  [7];  [15];  [12];  [16];  [12];  [17];  [8];  [18];  [10];  [10];  [19];  [20];  [6];  [2];  [6];  [7];  [7];  [7];  [2];  [2];  [16];  [6];  [21];  [14] « less
+ Show Author Affiliations
  1. Univ. of California, Berkeley, CA (United States)
  2. Space Telescope Science Institute, Baltimore, MD (United States)
  3. SETI Institute, Mountain View, CA (United States); Stanford Univ., Stanford, CA (United States)
  4. Univ. of Toronto,Toronto, ON (Canada)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Arizona State Univ., Tempe, AZ (United States)
  7. Gemini Observatory, La Serena (Chile)
  8. Univ. of Toronto, Toronto, ON (Canada)
  9. Univ. de Montreal, Montreal, QC (Canada)
  10. Univ. of Victoria, Victoria, BC (Canada); National Research Council of Canada Herzberg, Victoria, BC (Canada)
  11. Univ. of California, Berkeley, CA (United States); Univ. Grenoble Alpes/CNRS, Grenoble (France)
  12. Univ. of California, Los Angeles, CA (United States)
  13. Gemini Observatory, La Serena (Chile); Durham Univ., Durham (United Kingdom)
  14. Space Telescope Science Institute, Baltimore, MD (United States); Johns Hopkins Univ., Baltimore, MD (United States)
  15. Univ. of Exeter, Exeter (United Kingdom)
  16. Large Synoptic Survey Telescope, Tucson, AZ (United States)
  17. Stanford Univ., Stanford, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  18. SETI Institute, Mountain View, CA (United States)
  19. Univ. of Arizona, Tucson, AZ (United States)
  20. American Museum of Natural History, New York, NY (United States)
  21. Univ. of California, Santa Cruz, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1324517
Report Number(s):
LLNL-JRNL-678601
Journal ID: ISSN 2041-8213
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Letters (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal. Letters (Online); Journal Volume: 811; Journal Issue: 2; Journal ID: ISSN 2041-8213
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; circumstellar matter; instrumentation: adaptive optics; methods: data analysis; planet-disk interactions; stars: individual (AU Mic); techniques: high angular resolution

Citation Formats

Wang, Jason J., Graham, James R., Pueyo, Laurent, Nielsen, Eric L., Millar-Blanchaer, Max, De Rosa, Robert J., Kalas, Paul, Ammons, S. Mark, Bulger, Joanna, Cardwell, Andrew, Chen, Christine, Chiang, Eugene, Chilcote, Jeffrey K., Doyon, René, Draper, Zachary H., Duchêne, Gaspard, Esposito, Thomas M., Fitzgerald, Michael P., Goodsell, Stephen J., Greenbaum, Alexandra Z., Hartung, Markus, Hibon, Pascale, Hinkley, Sasha, Hung, Li -Wei, Ingraham, Patrick, Larkin, James E., Macintosh, Bruce, Maire, Jerome, Marchis, Franck, Marois, Christian, Matthews, Brenda C., Morzinski, Katie M., Oppenheimer, Rebecca, Patience, Jenny, Perrin, Marshall D., Rajan, Abhijith, Rantakyrö, Fredrik T., Sadakuni, Naru, Serio, Andrew, Sivaramakrishnan, Anand, Soummer, Rémi, Thomas, Sandrine, Ward-Duong, Kimberly, Wiktorowicz, Sloane J., and Wolff, Schuyler G. Gemini Planet Imager observations of the AU Microscopii debris disk: Asymmetries within one arcsecond. United States: N. p., 2015. Web. doi:10.1088/2041-8205/811/2/L19.
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Wang, Jason J., Graham, James R., Pueyo, Laurent, Nielsen, Eric L., Millar-Blanchaer, Max, De Rosa, Robert J., Kalas, Paul, Ammons, S. Mark, Bulger, Joanna, Cardwell, Andrew, Chen, Christine, Chiang, Eugene, Chilcote, Jeffrey K., Doyon, René, Draper, Zachary H., Duchêne, Gaspard, Esposito, Thomas M., Fitzgerald, Michael P., Goodsell, Stephen J., Greenbaum, Alexandra Z., Hartung, Markus, Hibon, Pascale, Hinkley, Sasha, Hung, Li -Wei, Ingraham, Patrick, Larkin, James E., Macintosh, Bruce, Maire, Jerome, Marchis, Franck, Marois, Christian, Matthews, Brenda C., Morzinski, Katie M., Oppenheimer, Rebecca, Patience, Jenny, Perrin, Marshall D., Rajan, Abhijith, Rantakyrö, Fredrik T., Sadakuni, Naru, Serio, Andrew, Sivaramakrishnan, Anand, Soummer, Rémi, Thomas, Sandrine, Ward-Duong, Kimberly, Wiktorowicz, Sloane J., & Wolff, Schuyler G. Gemini Planet Imager observations of the AU Microscopii debris disk: Asymmetries within one arcsecond. United States. https://doi.org/10.1088/2041-8205/811/2/L19
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Wang, Jason J., Graham, James R., Pueyo, Laurent, Nielsen, Eric L., Millar-Blanchaer, Max, De Rosa, Robert J., Kalas, Paul, Ammons, S. Mark, Bulger, Joanna, Cardwell, Andrew, Chen, Christine, Chiang, Eugene, Chilcote, Jeffrey K., Doyon, René, Draper, Zachary H., Duchêne, Gaspard, Esposito, Thomas M., Fitzgerald, Michael P., Goodsell, Stephen J., Greenbaum, Alexandra Z., Hartung, Markus, Hibon, Pascale, Hinkley, Sasha, Hung, Li -Wei, Ingraham, Patrick, Larkin, James E., Macintosh, Bruce, Maire, Jerome, Marchis, Franck, Marois, Christian, Matthews, Brenda C., Morzinski, Katie M., Oppenheimer, Rebecca, Patience, Jenny, Perrin, Marshall D., Rajan, Abhijith, Rantakyrö, Fredrik T., Sadakuni, Naru, Serio, Andrew, Sivaramakrishnan, Anand, Soummer, Rémi, Thomas, Sandrine, Ward-Duong, Kimberly, Wiktorowicz, Sloane J., and Wolff, Schuyler G. Wed . "Gemini Planet Imager observations of the AU Microscopii debris disk: Asymmetries within one arcsecond". United States. https://doi.org/10.1088/2041-8205/811/2/L19. https://www.osti.gov/servlets/purl/1324517.
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@article{osti_1324517,
title = {Gemini Planet Imager observations of the AU Microscopii debris disk: Asymmetries within one arcsecond},
author = {Wang, Jason J. and Graham, James R. and Pueyo, Laurent and Nielsen, Eric L. and Millar-Blanchaer, Max and De Rosa, Robert J. and Kalas, Paul and Ammons, S. Mark and Bulger, Joanna and Cardwell, Andrew and Chen, Christine and Chiang, Eugene and Chilcote, Jeffrey K. and Doyon, René and Draper, Zachary H. and Duchêne, Gaspard and Esposito, Thomas M. and Fitzgerald, Michael P. and Goodsell, Stephen J. and Greenbaum, Alexandra Z. and Hartung, Markus and Hibon, Pascale and Hinkley, Sasha and Hung, Li -Wei and Ingraham, Patrick and Larkin, James E. and Macintosh, Bruce and Maire, Jerome and Marchis, Franck and Marois, Christian and Matthews, Brenda C. and Morzinski, Katie M. and Oppenheimer, Rebecca and Patience, Jenny and Perrin, Marshall D. and Rajan, Abhijith and Rantakyrö, Fredrik T. and Sadakuni, Naru and Serio, Andrew and Sivaramakrishnan, Anand and Soummer, Rémi and Thomas, Sandrine and Ward-Duong, Kimberly and Wiktorowicz, Sloane J. and Wolff, Schuyler G.},
abstractNote = {We present Gemini Planet Imager (GPI) observations of AU Microscopii, a young M dwarf with an edge-on, dusty debris disk. Integral field spectroscopy and broadband imaging polarimetry were obtained during the commissioning of GPI. In our broadband imaging polarimetry observations, we detect the disk only in total intensity and find asymmetries in the morphology of the disk between the southeast (SE) and northwest (NW) sides. The SE side of the disk exhibits a bump at 1'' (10 AU projected separation) that is three times more vertically extended and three times fainter in peak surface brightness than the NW side at similar separations. This part of the disk is also vertically offset by 69 ± 30 mas to the northeast at 1'' when compared to the established disk midplane and is consistent with prior Atacama Large Millimeter/submillimeter Array and Hubble Space Telescope/Space Telescope Imaging Spectrograph observations. We see hints that the SE bump might be a result of detecting a horizontal sliver feature above the main disk that could be the disk backside. Alternatively, when including the morphology of the NW side, where the disk midplane is offset in the opposite direction ~50 mas between 0farcs4 and 1farcs2, the asymmetries suggest a warp-like feature. Using our integral field spectroscopy data to search for planets, we are 50% complete for ~4 MJup planets at 4 AU. Lastly, we detect a source, resolved only along the disk plane, that could either be a candidate planetary mass companion or a compact clump in the disk.},
doi = {10.1088/2041-8205/811/2/L19},
journal = {The Astrophysical Journal. Letters (Online)},
number = 2,
volume = 811,
place = {United States},
year = {Wed Sep 23 00:00:00 EDT 2015},
month = {Wed Sep 23 00:00:00 EDT 2015}
}
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https://doi.org/10.1088/2041-8205/811/2/L19
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Gemini planet imager observational calibrations VIII: characterization and role of satellite spots
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    Works referencing / citing this record:

    Observations of fast-moving features in the debris disk of AU Mic on a three-year timescale: Confirmation and new discoveries
    journal, June 2018

    Gemini Planet Imager observational calibrations XI: pipeline improvements and enhanced calibrations after two years on sky
    conference, August 2016

    • Perrin, Marshall D.; Ingraham, Patrick; Follette, Katherine B.
    • SPIE Astronomical Telescopes + Instrumentation, SPIE Proceedings
    • DOI: 10.1117/12.2233197

    Optical Coronagraphic Spectroscopy of AU Mic: Evidence of Time Variable Colors?
    journal, January 2018

    • Lomax, Jamie R.; Wisniewski, John P.; Roberge, Aki
    • The Astronomical Journal, Vol. 155, Issue 2
    • DOI: 10.3847/1538-3881/aaa1a7

    Direct Imaging of the HD 35841 Debris Disk: A Polarized Dust Ring from Gemini Planet Imager and an Outer Halo from HST /STIS
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    • Esposito, Thomas M.; Duchêne, Gaspard; Kalas, Paul
    • The Astronomical Journal, Vol. 156, Issue 2
    • DOI: 10.3847/1538-3881/aacbc9

    Stellar Winds and Dust Avalanches in the AU Mic Debris Disk
    journal, October 2017

    The Mass of Stirring Bodies in the AU Mic Debris Disk Inferred from Resolved Vertical Structure
    journal, April 2019

    • Daley, Cail; Hughes, A. Meredith; Carter, Evan S.
    • The Astrophysical Journal, Vol. 875, Issue 2
    • DOI: 10.3847/1538-4357/ab1074

    High-fidelity Imaging of the Inner AU Mic Debris Disk: Evidence of Differential Wind Sculpting?
    journal, September 2019

    • Wisniewski, John P.; Kowalski, Adam F.; Davenport, James R. A.
    • The Astrophysical Journal Letters, Vol. 883, Issue 1
    • DOI: 10.3847/2041-8213/ab40bf

    Observations of fast-moving features in the debris disk of AU Mic on a three-year timescale: Confirmation and new discoveries
    text, January 2018

    • Boccaletti, A.; Sezestre, E.; Lagrange, Am
    • Apollo - University of Cambridge Repository
    • DOI: 10.17863/cam.47446

    High-fidelity Imaging of the Inner AU Mic Debris Disk: Evidence of Differential Wind Sculpting?
    text, January 2019

    The exoplanet handbook: Book Review
    journal, March 2012

    Optical Coronagraphic Spectroscopy of AU Mic: Evidence of Time Variable Colors?
    text, January 2017

    The Mass of Stirring Bodies in the AU Mic Debris Disk Inferred from Resolved Vertical Structure
    text, January 2019

    High Fidelity Imaging of the Inner AU Mic Debris Disk: Evidence of Differential Wind Sculpting?
    text, January 2019

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