Imaging protoplanets: Observing transition disks with non-redundant masking

Steph Sallum; Josh Eisner; Laird M. Close; Philip M. Hinz; Katherine B. Follette; Kaitlin Kratter; Andrew J. Skemer; Vanessa P. Bailey; Runa Briguglio; Denis Defrere; Bruce A. Macintosh; Jared R. Males; Katie M. Morzinski; Alfio T. Puglisi; Timothy J. Rodigas; Peter G. Tuthill; Eckhart Spalding; Amali Vaz; Alycia Weinberger; Marco Xomperio

doi:10.1117/12.2231764

Imaging protoplanets: Observing transition disks with non-redundant masking

Steph Sallum, Josh Eisner, Laird M. Close, Philip M. Hinz, Katherine B. Follette, Kaitlin Kratter, Andrew J. Skemer, Vanessa P. Bailey, Runa Briguglio, Denis Defrere, Bruce A. Macintosh, Jared R. Males, Katie M. Morzinski, Alfio T. Puglisi, Timothy J. Rodigas, Peter G. Tuthill, Eckhart Spalding, Amali Vaz, Alycia Weinberger, Marco Xomperio

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

15 Scopus citations

Abstract

Transition disks, protoplanetary disks with inner clearings, are promising objects in which to directly image forming planets. The high contrast imaging technique of non-redundant masking is well posed to detect planetary mass companions at several to tens of AU in nearby transition disks. We present non-redundant masking observations of the T Cha and LkCa 15 transition disks, both of which host posited sub-stellar mass companions. However, due to a loss of information intrinsic to the technique, observations of extended sources (e.g. scattered light from disks) can be misinterpreted as moving companions. We discuss tests to distinguish between these two scenarios, with applications to the T Cha and LkCa 15 observations. We argue that a static, forward-scattering disk can explain the T Cha data, while LkCa 15 is best explained by multiple orbiting companions.

Original language	English (US)
Title of host publication	Optical and Infrared Interferometry and Imaging V
Editors	Michelle J. Creech-Eakman, Fabien Malbet, Peter G. Tuthill
Publisher	SPIE
ISBN (Electronic)	9781510601932
DOIs	https://doi.org/10.1117/12.2231764
State	Published - 2016
Event	Optical and Infrared Interferometry and Imaging V - Edinburgh, United Kingdom Duration: Jun 27 2016 → Jul 1 2016

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9907

Other

Other	Optical and Infrared Interferometry and Imaging V
Country/Territory	United Kingdom
City	Edinburgh
Period	6/27/16 → 7/1/16

Keywords

Exoplanets
High-contrast imaging
Interferometry
LkCa 15
T Cha
Transition disks

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2231764

Cite this

Sallum, S., Eisner, J., Close, L. M., Hinz, P. M., Follette, K. B., Kratter, K., Skemer, A. J., Bailey, V. P., Briguglio, R., Defrere, D., Macintosh, B. A., Males, J. R., Morzinski, K. M., Puglisi, A. T., Rodigas, T. J., Tuthill, P. G., Spalding, E., Vaz, A., Weinberger, A., & Xomperio, M. (2016). Imaging protoplanets: Observing transition disks with non-redundant masking. In M. J. Creech-Eakman, F. Malbet, & P. G. Tuthill (Eds.), Optical and Infrared Interferometry and Imaging V Article 99070D (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9907). SPIE. https://doi.org/10.1117/12.2231764

Imaging protoplanets: Observing transition disks with non-redundant masking. / Sallum, Steph; Eisner, Josh ; Close, Laird M. et al.
Optical and Infrared Interferometry and Imaging V. ed. / Michelle J. Creech-Eakman; Fabien Malbet; Peter G. Tuthill. SPIE, 2016. 99070D (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9907).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sallum, S, Eisner, J , Close, LM , Hinz, PM, Follette, KB, Kratter, K, Skemer, AJ, Bailey, VP, Briguglio, R, Defrere, D, Macintosh, BA, Males, JR, Morzinski, KM, Puglisi, AT, Rodigas, TJ, Tuthill, PG, Spalding, E, Vaz, A, Weinberger, A & Xomperio, M 2016, Imaging protoplanets: Observing transition disks with non-redundant masking. in MJ Creech-Eakman, F Malbet & PG Tuthill (eds), Optical and Infrared Interferometry and Imaging V., 99070D, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9907, SPIE, Optical and Infrared Interferometry and Imaging V, Edinburgh, United Kingdom, 6/27/16. https://doi.org/10.1117/12.2231764

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abstract = "Transition disks, protoplanetary disks with inner clearings, are promising objects in which to directly image forming planets. The high contrast imaging technique of non-redundant masking is well posed to detect planetary mass companions at several to tens of AU in nearby transition disks. We present non-redundant masking observations of the T Cha and LkCa 15 transition disks, both of which host posited sub-stellar mass companions. However, due to a loss of information intrinsic to the technique, observations of extended sources (e.g. scattered light from disks) can be misinterpreted as moving companions. We discuss tests to distinguish between these two scenarios, with applications to the T Cha and LkCa 15 observations. We argue that a static, forward-scattering disk can explain the T Cha data, while LkCa 15 is best explained by multiple orbiting companions.",

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author = "Steph Sallum and Josh Eisner and Close, {Laird M.} and Hinz, {Philip M.} and Follette, {Katherine B.} and Kaitlin Kratter and Skemer, {Andrew J.} and Bailey, {Vanessa P.} and Runa Briguglio and Denis Defrere and Macintosh, {Bruce A.} and Males, {Jared R.} and Morzinski, {Katie M.} and Puglisi, {Alfio T.} and Rodigas, {Timothy J.} and Tuthill, {Peter G.} and Eckhart Spalding and Amali Vaz and Alycia Weinberger and Marco Xomperio",

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AU - Follette, Katherine B.

AU - Kratter, Kaitlin

AU - Skemer, Andrew J.

AU - Bailey, Vanessa P.

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AU - Defrere, Denis

AU - Macintosh, Bruce A.

AU - Males, Jared R.

AU - Morzinski, Katie M.

AU - Puglisi, Alfio T.

AU - Rodigas, Timothy J.

AU - Tuthill, Peter G.

AU - Spalding, Eckhart

AU - Vaz, Amali

AU - Weinberger, Alycia

AU - Xomperio, Marco

PY - 2016

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N2 - Transition disks, protoplanetary disks with inner clearings, are promising objects in which to directly image forming planets. The high contrast imaging technique of non-redundant masking is well posed to detect planetary mass companions at several to tens of AU in nearby transition disks. We present non-redundant masking observations of the T Cha and LkCa 15 transition disks, both of which host posited sub-stellar mass companions. However, due to a loss of information intrinsic to the technique, observations of extended sources (e.g. scattered light from disks) can be misinterpreted as moving companions. We discuss tests to distinguish between these two scenarios, with applications to the T Cha and LkCa 15 observations. We argue that a static, forward-scattering disk can explain the T Cha data, while LkCa 15 is best explained by multiple orbiting companions.

AB - Transition disks, protoplanetary disks with inner clearings, are promising objects in which to directly image forming planets. The high contrast imaging technique of non-redundant masking is well posed to detect planetary mass companions at several to tens of AU in nearby transition disks. We present non-redundant masking observations of the T Cha and LkCa 15 transition disks, both of which host posited sub-stellar mass companions. However, due to a loss of information intrinsic to the technique, observations of extended sources (e.g. scattered light from disks) can be misinterpreted as moving companions. We discuss tests to distinguish between these two scenarios, with applications to the T Cha and LkCa 15 observations. We argue that a static, forward-scattering disk can explain the T Cha data, while LkCa 15 is best explained by multiple orbiting companions.

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KW - High-contrast imaging

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ER -

Imaging protoplanets: Observing transition disks with non-redundant masking

Abstract

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Keywords

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