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The SHARDDS survey: First resolved image of the HD 114082 debris disk in the Lower Centaurus Crux with SPHERE

Wahhaj, Zahed and Milli, Julien and Kennedy, Grant and Ertel, Steve and Matrà, Luca and Boccaletti, Anthony and del Burgo, Carlos and Wyatt, Mark and Pinte, Christophe and Lagrange, Anne-Marie and Absil, Olivier and Choquet, Élodie and Gomez Gonzalez, Carlos A. and Kobayashi, Hiroshi and Mawet, Dimitri and Mouillet, David and Pueyo, Laurent and Dent, William R. F. and Augereau, Jean-Charles and Girard, Julien (2016) The SHARDDS survey: First resolved image of the HD 114082 debris disk in the Lower Centaurus Crux with SPHERE. Astronomy & Astrophysics, 596 . Art. No. L4. ISSN 0004-6361. doi:10.1051/0004-6361/201629769.

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We present the first resolved image of the debris disk around the 16 ± 8 Myr old star, HD 114082. The observation was made in the H-band using the SPHERE instrument. The star is at a distance of 92 ± 6 pc in the Lower Centaurus Crux association. Using a Markov chain Monte Carlo analysis, we determined that the debris is likely in the form of a dust ring with an inner edge of 27.7^(+2.8)_(-3.5) au, position angle –74.3°^(+0.5)_(-1.5), and an inclination with respect to the line of sight of 6.7°^(+3.8)_(-0.4). The disk imaged in scattered light has a surface density that is declining with radius of ~r-4, which is steeper than expected for grain blowout by radiation pressure. We find only marginal evidence (2σ) of eccentricity and rule out planets more massive than 1.0 M_(Jup) orbiting within 1 au of the inner edge of the ring, since such a planet would have disrupted the disk. The disk has roughly the same fractional disk luminosity (L_(disk)/L_∗ = 3.3 × 10^(-3)) as HR 4796 A and β Pictoris, however it was not detected by previous instrument facilities most likely because of its small angular size (radius ~0.4"), low albedo (~0.2), and low scattering efficiency far from the star due to high scattering anisotropy. With the arrival of extreme adaptive optics systems, such as SPHERE and GPI, the morphology of smaller, fainter, and more distant debris disks are being revealed, providing clues to planet-disk interactions in young protoplanetary systems.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Wahhaj, Zahed0000-0001-8269-324X
Milli, Julien0000-0001-9325-2511
Kennedy, Grant0000-0001-6831-7547
Ertel, Steve0000-0002-2314-7289
Matrà, Luca0000-0003-4705-3188
Boccaletti, Anthony0000-0001-9353-2724
Pinte, Christophe0000-0001-5907-5179
Absil, Olivier0000-0002-4006-6237
Choquet, Élodie0000-0002-9173-0740
Gomez Gonzalez, Carlos A.0000-0003-2050-1710
Mawet, Dimitri0000-0002-8895-4735
Pueyo, Laurent0000-0003-3818-408X
Girard, Julien0000-0001-8627-0404
Additional Information:© ESO, 2016. Received: 21 September 2016. Accepted: 7 November 2016. We would like to thank the ESO staff and the technical operators at the Paranal Observatory. O.A. is F.R.S.-FNRS Research Associate. O.A. and C.G.G. acknowledge support by the European Union through ERC grant number 337569. G.M.K. is supported by the Royal Society as a Royal Society University Research Fellow. C.B. has been supported by Mexican CONACyT research grant CB-2012-183007. E.C. acknowledges support for this work from NASA through Hubble Fellowship grant HST-HF2-51355 awarded by STScI, which is operated by the AURA, Inc., for NASA under contract NAS5-26555.
Funding AgencyGrant Number
European Research Council (ERC)337569
Consejo Nacional de Ciencia y Tecnología (CONACYT)CB-2012-183007
NASA Hubble FellowshipHST-HF2-51355
Science and Technology Facilities Council (STFC)UNSPECIFIED
Subject Keywords:stars: individual: HD 114082 techniques: high angular resolution planetary systems
Record Number:CaltechAUTHORS:20170203-071518784
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Official Citation:The SHARDDS survey: First resolved image of the HD 114082 debris disk in the Lower Centaurus Crux with SPHERE Zahed Wahhaj, Julien Milli, Grant Kennedy, Steve Ertel, Luca Matrà, Anthony Boccaletti, Carlos del Burgo, Mark Wyatt, Christophe Pinte, Anne-Marie Lagrange, Olivier Absil, Elodie Choquet, Carlos A. Gómez González, Hiroshi Kobayashi, Dimitri Mawet, David Mouillet, Laurent Pueyo, William R. F. Dent, Jean-Charles Augereau and Julien Girard A&A, 596 (2016) L4 DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:73998
Deposited On:03 Feb 2017 17:34
Last Modified:11 Nov 2021 05:24

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