FIRST IMAGES of DEBRIS DISKS AROUND TWA 7, TWA 25, HD 35650, and HD 377

Élodie Choquet; Marshall D. Perrin; Christine H. Chen; Rémi Soummer; Laurent Pueyo; James B. Hagan; Elena Gofas-Salas; Abhijith Rajan; David A. Golimowski; Dean C. Hines; Glenn Schneider; Johan Mazoyer; Jean Charles Augereau; John Debes; Christopher C. Stark; Schuyler Wolff; Mamadou N'Diaye; Kevin Hsiao

doi:10.3847/2041-8205/817/1/L2

FIRST IMAGES of DEBRIS DISKS AROUND TWA 7, TWA 25, HD 35650, and HD 377

Élodie Choquet, Marshall D. Perrin, Christine H. Chen, Rémi Soummer, Laurent Pueyo, James B. Hagan, Elena Gofas-Salas, Abhijith Rajan, David A. Golimowski, Dean C. Hines, Glenn Schneider, Johan Mazoyer, Jean Charles Augereau, John Debes, Christopher C. Stark, Schuyler Wolff, Mamadou N'Diaye, Kevin Hsiao

Steward Observatory

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

69 Scopus citations

Abstract

We present the first images of four debris disks observed in scattered light around the young (4-250 Myr old) M dwarfs TWA 7 and TWA 25, the K6 star HD 35650, and the G2 star HD 377. We obtained these images by reprocessing archival Hubble Space Telescope NICMOS coronagraph data with modern post-processing techniques as part of the Archival Legacy Investigation of Circumstellar Environments program. All four disks appear faint and compact compared with other debris disks resolved in scattered light. The disks around TWA 25, HD 35650, and HD 377 appear very inclined, while TWA 7's disk is viewed nearly face-on. The surface brightness of HD 35650's disk is strongly asymmetric. These new detections raise the number of disks resolved in scattered light around M and late-K stars from one (the AU Mic system) to four. This new sample of resolved disks enables comparative studies of heretofore scarce debris disks around low-mass stars relative to solar-type stars.

Original language	English (US)
Article number	L2
Journal	Astrophysical Journal Letters
Volume	817
Issue number	1
DOIs	https://doi.org/10.3847/2041-8205/817/1/L2
State	Published - Jan 20 2016

Keywords

circumstellar matter
stars: individual (TWA 7, TWA 25, HD 35650, HD 377)
techniques: image processing

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/2041-8205/817/1/L2

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Choquet, É., Perrin, M. D., Chen, C. H., Soummer, R., Pueyo, L., Hagan, J. B., Gofas-Salas, E., Rajan, A., Golimowski, D. A., Hines, D. C., Schneider, G., Mazoyer, J., Augereau, J. C., Debes, J., Stark, C. C., Wolff, S., N'Diaye, M., & Hsiao, K. (2016). FIRST IMAGES of DEBRIS DISKS AROUND TWA 7, TWA 25, HD 35650, and HD 377. Astrophysical Journal Letters, 817(1), Article L2. https://doi.org/10.3847/2041-8205/817/1/L2

Choquet, É, Perrin, MD, Chen, CH, Soummer, R, Pueyo, L, Hagan, JB, Gofas-Salas, E, Rajan, A, Golimowski, DA, Hines, DC, Schneider, G, Mazoyer, J, Augereau, JC, Debes, J, Stark, CC, Wolff, S, N'Diaye, M & Hsiao, K 2016, 'FIRST IMAGES of DEBRIS DISKS AROUND TWA 7, TWA 25, HD 35650, and HD 377', Astrophysical Journal Letters, vol. 817, no. 1, L2. https://doi.org/10.3847/2041-8205/817/1/L2

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title = "FIRST IMAGES of DEBRIS DISKS AROUND TWA 7, TWA 25, HD 35650, and HD 377",

abstract = "We present the first images of four debris disks observed in scattered light around the young (4-250 Myr old) M dwarfs TWA 7 and TWA 25, the K6 star HD 35650, and the G2 star HD 377. We obtained these images by reprocessing archival Hubble Space Telescope NICMOS coronagraph data with modern post-processing techniques as part of the Archival Legacy Investigation of Circumstellar Environments program. All four disks appear faint and compact compared with other debris disks resolved in scattered light. The disks around TWA 25, HD 35650, and HD 377 appear very inclined, while TWA 7's disk is viewed nearly face-on. The surface brightness of HD 35650's disk is strongly asymmetric. These new detections raise the number of disks resolved in scattered light around M and late-K stars from one (the AU Mic system) to four. This new sample of resolved disks enables comparative studies of heretofore scarce debris disks around low-mass stars relative to solar-type stars.",

keywords = "circumstellar matter, stars: individual (TWA 7, TWA 25, HD 35650, HD 377), techniques: image processing",

author = "{\'E}lodie Choquet and Perrin, {Marshall D.} and Chen, {Christine H.} and R{\'e}mi Soummer and Laurent Pueyo and Hagan, {James B.} and Elena Gofas-Salas and Abhijith Rajan and Golimowski, {David A.} and Hines, {Dean C.} and Glenn Schneider and Johan Mazoyer and Augereau, {Jean Charles} and John Debes and Stark, {Christopher C.} and Schuyler Wolff and Mamadou N'Diaye and Kevin Hsiao",

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T1 - FIRST IMAGES of DEBRIS DISKS AROUND TWA 7, TWA 25, HD 35650, and HD 377

AU - Choquet, Élodie

AU - Perrin, Marshall D.

AU - Chen, Christine H.

AU - Soummer, Rémi

AU - Pueyo, Laurent

AU - Hagan, James B.

AU - Gofas-Salas, Elena

AU - Rajan, Abhijith

AU - Golimowski, David A.

AU - Hines, Dean C.

AU - Schneider, Glenn

AU - Mazoyer, Johan

AU - Augereau, Jean Charles

AU - Debes, John

AU - Stark, Christopher C.

AU - Wolff, Schuyler

AU - N'Diaye, Mamadou

AU - Hsiao, Kevin

PY - 2016/1/20

Y1 - 2016/1/20

N2 - We present the first images of four debris disks observed in scattered light around the young (4-250 Myr old) M dwarfs TWA 7 and TWA 25, the K6 star HD 35650, and the G2 star HD 377. We obtained these images by reprocessing archival Hubble Space Telescope NICMOS coronagraph data with modern post-processing techniques as part of the Archival Legacy Investigation of Circumstellar Environments program. All four disks appear faint and compact compared with other debris disks resolved in scattered light. The disks around TWA 25, HD 35650, and HD 377 appear very inclined, while TWA 7's disk is viewed nearly face-on. The surface brightness of HD 35650's disk is strongly asymmetric. These new detections raise the number of disks resolved in scattered light around M and late-K stars from one (the AU Mic system) to four. This new sample of resolved disks enables comparative studies of heretofore scarce debris disks around low-mass stars relative to solar-type stars.

AB - We present the first images of four debris disks observed in scattered light around the young (4-250 Myr old) M dwarfs TWA 7 and TWA 25, the K6 star HD 35650, and the G2 star HD 377. We obtained these images by reprocessing archival Hubble Space Telescope NICMOS coronagraph data with modern post-processing techniques as part of the Archival Legacy Investigation of Circumstellar Environments program. All four disks appear faint and compact compared with other debris disks resolved in scattered light. The disks around TWA 25, HD 35650, and HD 377 appear very inclined, while TWA 7's disk is viewed nearly face-on. The surface brightness of HD 35650's disk is strongly asymmetric. These new detections raise the number of disks resolved in scattered light around M and late-K stars from one (the AU Mic system) to four. This new sample of resolved disks enables comparative studies of heretofore scarce debris disks around low-mass stars relative to solar-type stars.

KW - circumstellar matter

KW - stars: individual (TWA 7, TWA 25, HD 35650, HD 377)

KW - techniques: image processing

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FIRST IMAGES of DEBRIS DISKS AROUND TWA 7, TWA 25, HD 35650, and HD 377

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