FIRST IMAGES OF DEBRIS DISKS AROUND TWA 7, TWA 25, HD 35650, AND HD 377

被引：71

作者：

Choquet, Elodie ^{[1
]}

Perrin, Marshall D. ^{[1
]}

Chen, Christine H. ^{[1
]}

Soummer, Remi ^{[1
]}

Pueyo, Laurent ^{[1
]}

Hagan, James B. ^{[1
,2
]}

Gofas-Salas, Elena ^{[1
,3
]}

Rajan, Abhijith ^{[4
]}

Golimowski, David A. ^{[1
]}

Hines, Dean C. ^{[1
]}

Schneider, Glenn ^{[5
]}

Mazoyer, Johan ^{[1
]}

Augereau, Jean-Charles ^{[6
,7
]}

Debes, John ^{[1
]}

Stark, Christopher C. ^{[1
]}

Wolff, Schuyler ^{[8
]}

N'Diaye, Mamadou ^{[1
]}

Hsiao, Kevin ^{[8
]}

机构：

[1] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[2] Purdue Univ, W Lafayette, IN 47907 USA

[3] Grad Sch, Inst Opt, 2 Ave Augustin Fresnel, F-91127 Palaiseau, France

[4] Arizona State Univ, Phoenix, AZ 85004 USA

[5] Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA

[6] Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France

[7] CNRS, IPAG, F-38000 Grenoble, France

[8] Johns Hopkins Univ, 3400 North Charles St, Baltimore, MD 21218 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2016年 / 817卷 / 01期

关键词：

circumstellar matter; stars:; individual; (TWA; 7; WA; 25; HD; 35650; 377); techniques: image processing; INFRARED INTERFEROMETRIC SURVEY; HYDRAE ASSOCIATION; SPACE-TELESCOPE; STARS; EVOLUTION; DISCS; YOUNG; DUST; PARALLAXES; HERSCHEL;

D O I：

10.3847/2041-8205/817/1/L2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

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