Accretion channeling in classical T Tauri stars

被引：0

作者：

Gregory, SG ^{[1
]}

Jardine, M ^{[1
]}

Cameron, AC ^{[1
]}

Donati, JF ^{[1
]}

机构：

[1] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

来源：

PROCEEDINGS OF THE 13TH CAMBRIDGE WORKSHOP ON COOL STARS, STELLAR SYSTEMS AND THE SUN - PROCEEDINGS, VOLS 1 AND 2 | 2005年 / 560卷

关键词：

stars : pre-main sequence; stars : magnetic fields; stars : formation; stars : coronae;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is now accepted that accretion in classical T Tauri stars is controlled by the stellar magnetosphere, as opposed to the traditional disk boundary layer model. The magnetosphere truncates the disk at several stellar radii allowing material to couple to the field and fall toward the star. Observations indicate the presence of hot spots on the stellar surface where accretion flows impact the photosphere. By considering magnetic fields with a realistic degree of complexity we demonstrate that the geometry of the field strongly affects the location and distribution of hot spots - the signatures of accretion.

引用

页码：191 / 197

页数：7

共 50 条

[41] On the alignment of Classical T Tauri stars with the magnetic field in the Taurus-Auriga molecular cloud
Ménard, F
Duchêne, G
ASTRONOMY & ASTROPHYSICS, 2004, 425 (03) : 973 - 980
[42] ROTATIONAL EVOLUTION OF MAGNETIC T-TAURI STARS WITH ACCRETION DISKS
COLLIER CAMERON, A
CAMPBELL, CG
ASTRONOMY & ASTROPHYSICS, 1993, 274 (01) : 309 - 318
[43] OPTICAL VEILING, DISK ACCRETION, AND THE EVOLUTION OF T-TAURI STARS
HARTMANN, LW
KENYON, SJ
ASTROPHYSICAL JOURNAL, 1990, 349 (01): : 190 - 196
[44] ACCRETION AND MAGNETIC RECONNECTION IN THE CLASSICAL T TAURI BINARY DQ TAU
Tofflemire, Benjamin M.
Mathieu, Robert D.
Ardila, David R.
Akeson, Rachel L.
Ciardi, David R.
Johns-Krull, Christopher
Herczeg, Gregory J.
Quijano-Vodniza, Alberto
ASTROPHYSICAL JOURNAL, 2017, 835 (01):
[45] Variability of southern T Tauri stars. II. The spectral variability of the classical T Tauri star TW Hydrae
Alencar, SHP
Batalha, C
ASTROPHYSICAL JOURNAL, 2002, 571 (01): : 378 - 393
[46] Impacts of fragmented accretion streams onto classical T Tauri stars: UV and X-ray emission lines
Colombo, S.
Orlando, S.
Peres, G.
Argiroffi, C.
Reale, F.
ASTRONOMY & ASTROPHYSICS, 2016, 594
[47] MAGNETOHYDRODYNAMIC MODELING OF THE ACCRETION SHOCKS IN CLASSICAL T TAURI STARS: THE ROLE OF LOCAL ABSORPTION IN THE X-RAY EMISSION
Bonito, R.
Orlando, S.
Argiroffi, C.
Miceli, M.
Peres, G.
Matsakos, T.
Stehle, C.
Ibgui, L.
ASTROPHYSICAL JOURNAL LETTERS, 2014, 795 (02)
[48] X-ray emission from dense plasma in classical T Tauri stars: hydrodynamic modeling of the accretion shock
Sacco, G. G.
Argiroffi, C.
Orlando, S.
Maggio, A.
Peres, G.
Reale, F.
ASTRONOMY & ASTROPHYSICS, 2008, 491 (02) : L17 - L20
[49] X-rays from T Tauri:: a test case for accreting T Tauri stars
Guedel, M.
Skinner, S. L.
Mel'nikov, S. Yu.
Audard, M.
Telleschi, A.
Briggs, K. R.
ASTRONOMY & ASTROPHYSICS, 2007, 468 (02) : 529 - 540
[50] TURBULENCE-DRIVEN POLAR WINDS FROM T TAURI STARS ENERGIZED BY MAGNETOSPHERIC ACCRETION
Cranmer, Steven R.
ASTROPHYSICAL JOURNAL, 2008, 689 (01): : 316 - 334

← 1 2 3 4 5 →