The gray needle: Large grains in the HD15115 debris disk from LBT

Timothy J. Rodigas; Philip M. Hinz; Jarron Leisenring; Vidhya Vaitheeswaran; Andrew J. Skemer; Michael Skrutskie; Kate Y.L. Su; Vanessa Bailey; Glenn Schneider; Laird Close; Filippo Mannucci; Simone Esposito; Carmelo Arcidiacono; Enrico Pinna; Javier Argomedo; Guido Agapito; Daniel Apai; Giuseppe Bono; Kostantina Boutsia; Runa Briguglio; Guido Brusa; Lorenzo Busoni; Giovanni Cresci; Thayne Currie; Silvano Desidera; Josh Eisner; Renato Falomo; Luca Fini; Kate Follette; Adriano Fontana; Peter Garnavich; Raffaele Gratton; Richard Green; Juan Carlos Guerra; J. M. Hill; William F. Hoffmann; Terry J. Jones; Megan Krejny; Craig Kulesa; Jared Males; Elena Masciadri; Dino Mesa; Don McCarthy; Michael Meyer; Doug Miller; Matthew J. Nelson; Alfio Puglisi; Fernando Quiros-Pacheco; Armando Riccardi; Eleonora Sani; Paolo Stefanini; Vincenzo Testa; John Wilson; Charles E. Woodward; Marco Xompero

doi:10.1088/0004-637X/752/1/57

The gray needle: Large grains in the HD15115 debris disk from LBT

Timothy J. Rodigas, Philip M. Hinz, Jarron Leisenring, Vidhya Vaitheeswaran, Andrew J. Skemer, Michael Skrutskie, Kate Y.L. Su, Vanessa Bailey, Glenn Schneider, Laird Close, Filippo Mannucci, Simone Esposito, Carmelo Arcidiacono, Enrico Pinna, Javier Argomedo, Guido Agapito, Daniel Apai, Giuseppe Bono, Kostantina Boutsia, Runa BriguglioGuido Brusa, Lorenzo Busoni, Giovanni Cresci, Thayne Currie, Silvano Desidera, Josh Eisner, Renato Falomo, Luca Fini, Kate Follette, Adriano Fontana, Peter Garnavich, Raffaele Gratton, Richard Green, Juan Carlos Guerra, J. M. Hill, William F. Hoffmann, Terry J. Jones, Megan Krejny, Craig Kulesa, Jared Males, Elena Masciadri, Dino Mesa, Don McCarthy, Michael Meyer, Doug Miller, Matthew J. Nelson, Alfio Puglisi, Fernando Quiros-Pacheco, Armando Riccardi, Eleonora Sani, Paolo Stefanini, Vincenzo Testa, John Wilson, Charles E. Woodward, Marco Xompero

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

We present diffraction-limited Ks band and L′ adaptive optics images of the edge-on debris disk around the nearby F2 star HD15115, obtained with a single 8.4m primary mirror at the Large Binocular Telescope. At the Ks band, the disk is detected at signal-to-noise per resolution element (SNRE) 3-8 from 1 to 25 (45-113AU) on the western side and from 12 to 21 (63-90AU) on the east. At L′ the disk is detected at SNRE 2.5 from 1 to 145 (45-90AU) on both sides, implying more symmetric disk structure at 3.8 μm. At both wavelengths the disk has a bow-like shape and is offset from the star to the north by a fewAU. A surface brightness asymmetry exists between the two sides of the disk at the Ks band, but not at L′. The surface brightness at the Ks band declines inside 1″ (45AU), which may be indicative of a gap in the disk near 1″. The Ks - L′ disk color, after removal of the stellar color, is mostly gray for both sides of the disk. This suggests that scattered light is coming from large dust grains, with 3-10 μm sized grains on the east side and 1-10 μm dust grains on the west. This may suggest that the west side is composed of smaller dust grains than the east side, which would support the interpretation that the disk is being dynamically affected by interactions with the local interstellar medium.

Original language	English (US)
Article number	57
Journal	Astrophysical Journal
Volume	752
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/752/1/57
State	Published - Jun 10 2012

Keywords

circumstellar matter
instrumentation: adaptive optics
planetary systems
stars: individual (HD 15115)
techniques: high angular resolution

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/752/1/57

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Rodigas, T. J., Hinz, P. M., Leisenring, J., Vaitheeswaran, V., Skemer, A. J., Skrutskie, M., Su, K. Y. L., Bailey, V., Schneider, G., Close, L., Mannucci, F., Esposito, S., Arcidiacono, C., Pinna, E., Argomedo, J., Agapito, G., Apai, D., Bono, G., Boutsia, K., ... Xompero, M. (2012). The gray needle: Large grains in the HD15115 debris disk from LBT. Astrophysical Journal, 752(1), Article 57. https://doi.org/10.1088/0004-637X/752/1/57

Rodigas, TJ, Hinz, PM, Leisenring, J, Vaitheeswaran, V, Skemer, AJ, Skrutskie, M, Su, KYL, Bailey, V, Schneider, G , Close, L, Mannucci, F, Esposito, S, Arcidiacono, C, Pinna, E, Argomedo, J, Agapito, G, Apai, D, Bono, G, Boutsia, K, Briguglio, R, Brusa, G, Busoni, L, Cresci, G, Currie, T, Desidera, S, Eisner, J, Falomo, R, Fini, L, Follette, K, Fontana, A, Garnavich, P, Gratton, R, Green, R, Guerra, JC, Hill, JM, Hoffmann, WF, Jones, TJ, Krejny, M, Kulesa, C, Males, J, Masciadri, E, Mesa, D, McCarthy, D, Meyer, M, Miller, D, Nelson, MJ, Puglisi, A, Quiros-Pacheco, F, Riccardi, A, Sani, E, Stefanini, P, Testa, V, Wilson, J, Woodward, CE & Xompero, M 2012, 'The gray needle: Large grains in the HD15115 debris disk from LBT', Astrophysical Journal, vol. 752, no. 1, 57. https://doi.org/10.1088/0004-637X/752/1/57

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title = "The gray needle: Large grains in the HD15115 debris disk from LBT",

abstract = "We present diffraction-limited Ks band and L′ adaptive optics images of the edge-on debris disk around the nearby F2 star HD15115, obtained with a single 8.4m primary mirror at the Large Binocular Telescope. At the Ks band, the disk is detected at signal-to-noise per resolution element (SNRE) 3-8 from 1 to 25 (45-113AU) on the western side and from 12 to 21 (63-90AU) on the east. At L′ the disk is detected at SNRE 2.5 from 1 to 145 (45-90AU) on both sides, implying more symmetric disk structure at 3.8 μm. At both wavelengths the disk has a bow-like shape and is offset from the star to the north by a fewAU. A surface brightness asymmetry exists between the two sides of the disk at the Ks band, but not at L′. The surface brightness at the Ks band declines inside 1″ (45AU), which may be indicative of a gap in the disk near 1″. The Ks - L′ disk color, after removal of the stellar color, is mostly gray for both sides of the disk. This suggests that scattered light is coming from large dust grains, with 3-10 μm sized grains on the east side and 1-10 μm dust grains on the west. This may suggest that the west side is composed of smaller dust grains than the east side, which would support the interpretation that the disk is being dynamically affected by interactions with the local interstellar medium.",

keywords = "circumstellar matter, instrumentation: adaptive optics, planetary systems, stars: individual (HD 15115), techniques: high angular resolution",

author = "Rodigas, {Timothy J.} and Hinz, {Philip M.} and Jarron Leisenring and Vidhya Vaitheeswaran and Skemer, {Andrew J.} and Michael Skrutskie and Su, {Kate Y.L.} and Vanessa Bailey and Glenn Schneider and Laird Close and Filippo Mannucci and Simone Esposito and Carmelo Arcidiacono and Enrico Pinna and Javier Argomedo and Guido Agapito and Daniel Apai and Giuseppe Bono and Kostantina Boutsia and Runa Briguglio and Guido Brusa and Lorenzo Busoni and Giovanni Cresci and Thayne Currie and Silvano Desidera and Josh Eisner and Renato Falomo and Luca Fini and Kate Follette and Adriano Fontana and Peter Garnavich and Raffaele Gratton and Richard Green and Guerra, {Juan Carlos} and Hill, {J. M.} and Hoffmann, {William F.} and Jones, {Terry J.} and Megan Krejny and Craig Kulesa and Jared Males and Elena Masciadri and Dino Mesa and Don McCarthy and Michael Meyer and Doug Miller and Nelson, {Matthew J.} and Alfio Puglisi and Fernando Quiros-Pacheco and Armando Riccardi and Eleonora Sani and Paolo Stefanini and Vincenzo Testa and John Wilson and Woodward, {Charles E.} and Marco Xompero",

year = "2012",

month = jun,

day = "10",

doi = "10.1088/0004-637X/752/1/57",

language = "English (US)",

volume = "752",

journal = "Astrophysical Journal",

issn = "0004-637X",

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T1 - The gray needle

T2 - Large grains in the HD15115 debris disk from LBT

AU - Rodigas, Timothy J.

AU - Hinz, Philip M.

AU - Leisenring, Jarron

AU - Vaitheeswaran, Vidhya

AU - Skemer, Andrew J.

AU - Skrutskie, Michael

AU - Su, Kate Y.L.

AU - Bailey, Vanessa

AU - Schneider, Glenn

AU - Close, Laird

AU - Mannucci, Filippo

AU - Esposito, Simone

AU - Arcidiacono, Carmelo

AU - Pinna, Enrico

AU - Argomedo, Javier

AU - Agapito, Guido

AU - Apai, Daniel

AU - Bono, Giuseppe

AU - Boutsia, Kostantina

AU - Briguglio, Runa

AU - Brusa, Guido

AU - Busoni, Lorenzo

AU - Cresci, Giovanni

AU - Currie, Thayne

AU - Desidera, Silvano

AU - Eisner, Josh

AU - Falomo, Renato

AU - Fini, Luca

AU - Follette, Kate

AU - Fontana, Adriano

AU - Garnavich, Peter

AU - Gratton, Raffaele

AU - Green, Richard

AU - Guerra, Juan Carlos

AU - Hill, J. M.

AU - Hoffmann, William F.

AU - Jones, Terry J.

AU - Krejny, Megan

AU - Kulesa, Craig

AU - Males, Jared

AU - Masciadri, Elena

AU - Mesa, Dino

AU - McCarthy, Don

AU - Meyer, Michael

AU - Miller, Doug

AU - Nelson, Matthew J.

AU - Puglisi, Alfio

AU - Quiros-Pacheco, Fernando

AU - Riccardi, Armando

AU - Sani, Eleonora

AU - Stefanini, Paolo

AU - Testa, Vincenzo

AU - Wilson, John

AU - Woodward, Charles E.

AU - Xompero, Marco

PY - 2012/6/10

Y1 - 2012/6/10

N2 - We present diffraction-limited Ks band and L′ adaptive optics images of the edge-on debris disk around the nearby F2 star HD15115, obtained with a single 8.4m primary mirror at the Large Binocular Telescope. At the Ks band, the disk is detected at signal-to-noise per resolution element (SNRE) 3-8 from 1 to 25 (45-113AU) on the western side and from 12 to 21 (63-90AU) on the east. At L′ the disk is detected at SNRE 2.5 from 1 to 145 (45-90AU) on both sides, implying more symmetric disk structure at 3.8 μm. At both wavelengths the disk has a bow-like shape and is offset from the star to the north by a fewAU. A surface brightness asymmetry exists between the two sides of the disk at the Ks band, but not at L′. The surface brightness at the Ks band declines inside 1″ (45AU), which may be indicative of a gap in the disk near 1″. The Ks - L′ disk color, after removal of the stellar color, is mostly gray for both sides of the disk. This suggests that scattered light is coming from large dust grains, with 3-10 μm sized grains on the east side and 1-10 μm dust grains on the west. This may suggest that the west side is composed of smaller dust grains than the east side, which would support the interpretation that the disk is being dynamically affected by interactions with the local interstellar medium.

AB - We present diffraction-limited Ks band and L′ adaptive optics images of the edge-on debris disk around the nearby F2 star HD15115, obtained with a single 8.4m primary mirror at the Large Binocular Telescope. At the Ks band, the disk is detected at signal-to-noise per resolution element (SNRE) 3-8 from 1 to 25 (45-113AU) on the western side and from 12 to 21 (63-90AU) on the east. At L′ the disk is detected at SNRE 2.5 from 1 to 145 (45-90AU) on both sides, implying more symmetric disk structure at 3.8 μm. At both wavelengths the disk has a bow-like shape and is offset from the star to the north by a fewAU. A surface brightness asymmetry exists between the two sides of the disk at the Ks band, but not at L′. The surface brightness at the Ks band declines inside 1″ (45AU), which may be indicative of a gap in the disk near 1″. The Ks - L′ disk color, after removal of the stellar color, is mostly gray for both sides of the disk. This suggests that scattered light is coming from large dust grains, with 3-10 μm sized grains on the east side and 1-10 μm dust grains on the west. This may suggest that the west side is composed of smaller dust grains than the east side, which would support the interpretation that the disk is being dynamically affected by interactions with the local interstellar medium.

KW - circumstellar matter

KW - instrumentation: adaptive optics

KW - planetary systems

KW - stars: individual (HD 15115)

KW - techniques: high angular resolution

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U2 - 10.1088/0004-637X/752/1/57

DO - 10.1088/0004-637X/752/1/57

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SN - 0004-637X

VL - 752

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

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ER -

The gray needle: Large grains in the HD15115 debris disk from LBT

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