Observations of DG Tauri with the Keck interferometer

被引：44

作者：

Colavita, M

Akeson, R

Wizinowich, P

Shao, M

Acton, S

Beletic, J

Bell, J

Berlin, J

Boden, A

Booth, A

Boutell, R

Chaffee, F

Chan, D

Chock, J

Cohen, R

Crawford, S

Creech-Eakman, M

Eychaner, G

Felizardo, C

Gathright, J

Hardy, G

Henderson, H

Herstein, J

Hess, M

Hovland, E

Hrynevych, M

Johnson, R

Kelley, J

Kendrick, R

Koresko, C

Kurpis, P

Le Mignant, D

Lewis, H

Ligon, E

Lupton, W

McBride, D

Mennesson, B

Millan-Gabet, R

Monnier, J

Moore, J

Nance, C

Neyman, C

Niessner, A

Palmer, D

Reder, L

Rudeen, A

Saloga, T

Sargent, A

Serabyn, E

Smythe, R

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[2] Michelson Sci Ctr, Pasadena, CA 91125 USA

[3] Calif Assoc Res Astron, WM Keck Observ, Kamuela, HI 96743 USA

[4] Univ Michigan, Ann Arbor, MI 48109 USA

来源：

ASTROPHYSICAL JOURNAL | 2003年 / 592卷 / 02期

基金：

美国国家航空航天局;

关键词：

circumstellar matter; instrumentation : interferometers; stars : pre-main-sequence;

D O I：

10.1086/377704

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first science results from the Keck Interferometer, a direct-detection infrared interferometer utilizing the two 10 m Keck telescopes. The instrument and system components are briefly described. We then present observations of the T Tauri object DG Tau, which is resolved by the interferometer. The resolved component has a radius of 0.12 - 0.24 AU, depending on the assumed stellar and extended component fluxes and the model geometry used. Possible origins and implications of the resolved emission are discussed.

引用

页码：L83 / L86

页数：4

共 28 条

[1] Infrared interferometric observations of young stellar objects [J].

Akeson, RL ;

Ciardi, DR ;

van Belle, GT ;

Creech-Eakman, MJ ;

Lada, EA .

ASTROPHYSICAL JOURNAL, 2000, 543 (01) :313-317

[2]

AKESON RL, 2002, P SOC PHOTO-OPT INS, V4838, P1037

[3] Hubble Space Telescope/STIS spectroscopy of the optical outflow from DG Tauri:: Indications for rotation in the initial jet channel [J].

Bacciotti, F ;

Ray, TP ;

Mundt, R ;

Eislöffel, J ;

Solf, J .

ASTROPHYSICAL JOURNAL, 2002, 576 (01) :222-231

[4] A SURVEY FOR CIRCUMSTELLAR DISKS AROUND YOUNG STELLAR OBJECTS [J].

BECKWITH, SVW ;

SARGENT, AI ;

CHINI, RS ;

GUSTEN, R .

ASTRONOMICAL JOURNAL, 1990, 99 (03) :924-945

[5] Visibility calibrations with the Palomar Testbed Interferometer [J].

Boden, AF ;

Colavita, MM ;

van Belle, GT ;

Shao, M .

ASTRONOMICAL INTERFEROMETRY, PTS 1 AND 2, 1998, 3350 :872-880

[6] Overview of the control system for the Keck Interferometer [J].

Booth, AJ ;

Eychaner, G ;

Hovland, E ;

Johnson, RL ;

Lupton, W ;

Niessner, A ;

Palmer, D ;

Reder, LJ ;

Rudeen, AC ;

Smythe, RF ;

Tsubota, K .

ADVANCED TELESCOPE AND INSTRUMENTATION CONTROL SOFTWARE II, 2002, 4848 :107-115

[7] 10 AU SCALE HALO STRUCTURE AROUND DG TAURI [J].

CHEN, WP ;

HOWELL, RR ;

SIMON, M ;

BENSON, JA .

ASTROPHYSICAL JOURNAL, 1992, 387 (01) :L43-L46

[8] The Palomar Testbed Interferometer [J].

Colavita, MM ;

Wallace, JK ;

Hines, BE ;

Gursel, Y ;

Malbet, F ;

Palmer, DL ;

Pan, XP ;

Shao, M ;

Yu, JW ;

Boden, AF ;

Dumont, PJ ;

Gubler, J ;

Koresko, CD ;

Kulkarni, SR ;

Lane, BF ;

Mobley, DW ;

van Belle, GT .

ASTROPHYSICAL JOURNAL, 1999, 510 (01) :505-521

[9] Keck interferometer update [J].

Colavita, MM ;

Wizinowich, PL .

INTERFEROMETRY FOR OPTICAL ASTRONOMY II, PTS 1 AND 2, 2003, 4838 :79-88

[10] Fringe visibility estimators for the palomar testbed interferometer [J].

Colavita, MM .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1999, 111 (755) :111-117

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