NACO polarimetric differential imaging of TW Hya. A sharp look at the closest T Tauri disk

D. Apai; I. Pascucci; W. Brandner; Th Henning; R. Lenzen; D. E. Potter; A. M. Lagrange; G. Rousset

doi:10.1051/0004-6361:20034549

NACO polarimetric differential imaging of TW Hya. A sharp look at the closest T Tauri disk

D. Apai, I. Pascucci, W. Brandner, Th Henning, R. Lenzen, D. E. Potter, A. M. Lagrange, G. Rousset

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

59 Scopus citations

Abstract

We present high-contrast imaging data on the disk of the classical T Tauri star TW Hya. The images were obtained through the polarimetric differential imaging technique with the adaptive optics system NACO. Our commissioning data show the presence of polarized disk emission between 0.1″ and 1.4″ form the star. We derive the first Ks-band radial polarized intensity distribution. We show that the polarized intensity compares well to shorter wavelengths surface brightness observations and confirm the previously reported gradual slope change around 0.8″. These results show the potential of the new polarimetric differential imaging technique at 8 m-class telescopes to map the inner regions of protoplanetary disks.

Original language	English (US)
Pages (from-to)	671-676
Number of pages	6
Journal	Astronomy and astrophysics
Volume	415
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361:20034549
State	Published - Feb 2004

Keywords

Stars: circumstellar matter
Stars: individual: TW Hya
Stars: planetary systems: protoplanetary disks
Techniques: polarimetric

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361:20034549

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title = "NACO polarimetric differential imaging of TW Hya. A sharp look at the closest T Tauri disk",

abstract = "We present high-contrast imaging data on the disk of the classical T Tauri star TW Hya. The images were obtained through the polarimetric differential imaging technique with the adaptive optics system NACO. Our commissioning data show the presence of polarized disk emission between 0.1″ and 1.4″ form the star. We derive the first Ks-band radial polarized intensity distribution. We show that the polarized intensity compares well to shorter wavelengths surface brightness observations and confirm the previously reported gradual slope change around 0.8″. These results show the potential of the new polarimetric differential imaging technique at 8 m-class telescopes to map the inner regions of protoplanetary disks.",

keywords = "Stars: circumstellar matter, Stars: individual: TW Hya, Stars: planetary systems: protoplanetary disks, Techniques: polarimetric",

author = "D. Apai and I. Pascucci and W. Brandner and Th Henning and R. Lenzen and Potter, {D. E.} and Lagrange, {A. M.} and G. Rousset",

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language = "English (US)",

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T1 - NACO polarimetric differential imaging of TW Hya. A sharp look at the closest T Tauri disk

AU - Apai, D.

AU - Pascucci, I.

AU - Brandner, W.

AU - Henning, Th

AU - Lenzen, R.

AU - Potter, D. E.

AU - Lagrange, A. M.

AU - Rousset, G.

PY - 2004/2

Y1 - 2004/2

N2 - We present high-contrast imaging data on the disk of the classical T Tauri star TW Hya. The images were obtained through the polarimetric differential imaging technique with the adaptive optics system NACO. Our commissioning data show the presence of polarized disk emission between 0.1″ and 1.4″ form the star. We derive the first Ks-band radial polarized intensity distribution. We show that the polarized intensity compares well to shorter wavelengths surface brightness observations and confirm the previously reported gradual slope change around 0.8″. These results show the potential of the new polarimetric differential imaging technique at 8 m-class telescopes to map the inner regions of protoplanetary disks.

AB - We present high-contrast imaging data on the disk of the classical T Tauri star TW Hya. The images were obtained through the polarimetric differential imaging technique with the adaptive optics system NACO. Our commissioning data show the presence of polarized disk emission between 0.1″ and 1.4″ form the star. We derive the first Ks-band radial polarized intensity distribution. We show that the polarized intensity compares well to shorter wavelengths surface brightness observations and confirm the previously reported gradual slope change around 0.8″. These results show the potential of the new polarimetric differential imaging technique at 8 m-class telescopes to map the inner regions of protoplanetary disks.

KW - Stars: circumstellar matter

KW - Stars: individual: TW Hya

KW - Stars: planetary systems: protoplanetary disks

KW - Techniques: polarimetric

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JO - Astronomy and astrophysics

JF - Astronomy and astrophysics

IS - 2

ER -

NACO polarimetric differential imaging of TW Hya. A sharp look at the closest T Tauri disk

Abstract

Keywords

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