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Academia Sinica: Taipei, Taipei, TW

2008-05 to present (Institute of Astronomy and Astrophysics)
Employment
Source: Self-asserted source
Ruben Krasnopolsky

Works (50 of 54)

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ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Nested Morphological and Kinematic Structures of Outflows Revealed in SiO and CO Emission

The Astrophysical Journal
2025-01-01 | Journal article
DOI: 10.3847/1538-4357/ad9275
Contributors: Chun-Fan 君帆 Liu 劉; Hsien 賢 Shang 尚; Doug Johnstone; Tsung-Han 宗瀚 Ai 艾; Tsz Ming 子銘 Lee 李; Ruben Krasnopolsky; Naomi Hirano; Somnath Dutta; Shih-Ying 世穎 Hsu 許; Jesús Alejandro López-Vázquez et al.
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Crossref

Multiple Components of the Outflow in the Protostellar System HH 212: Outer Outflow Shell, Rotating Wind, Shocked Wind, and Jet

The Astrophysical Journal
2024-12-01 | Journal article
DOI: 10.3847/1538-4357/ad8eb4
Contributors: J. A. López-Vázquez; Chin-Fei Lee; Hsien Shang; Sylvie Cabrit; Ruben Krasnopolsky; Claudio Codella; Chun-Fan Liu; Linda Podio; Somnath Dutta; A. Murphy et al.
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Crossref

A Unified Model for Bipolar Outflows from Young Stars: Kinematic and Mixing Structures in HH 30

The Astrophysical Journal
2024-04-01 | Journal article
DOI: 10.3847/1538-4357/ad2355
Contributors: Tsung-Han 宗瀚 Ai 艾; Chun-Fan 君帆 Liu 劉; Hsien 賢 Shang 尚; Doug Johnstone; Ruben Krasnopolsky
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Crossref

Formation of Limb-brightened Radio Jets by Angle-dependent Energy Extraction from Rapidly Rotating Black Holes

The Astrophysical Journal
2024-04-01 | Journal article
DOI: 10.3847/1538-4357/ad28c7
Contributors: Kouichi Hirotani; Hsien 賢 Shang 尚; Ruben Krasnopolsky; Kenichi Nishikawa
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Crossref

An Efficient Algorithm for Astrochemical Systems Using Stoichiometry Matrices

The Astrophysical Journal Supplement Series
2024-02-01 | Journal article
DOI: 10.3847/1538-4365/ad12c8
Contributors: Kazutaka Motoyama; Ruben Krasnopolsky; Hsien Shang; Kento Aida; Eisaku Sakane
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Crossref

Exploring the Formation of Resistive Pseudodisks with the GPU Code Astaroth

The Astrophysical Journal
2023-12-01 | Journal article
DOI: 10.3847/1538-4357/acfb00
Contributors: Miikka S. Väisälä; Hsien Shang; Daniele Galli; Susana Lizano; Ruben Krasnopolsky
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Crossref

A Unified Model for Bipolar Outflows from Young Stars: Apparent Magnetic Jet Acceleration

The Astrophysical Journal Letters
2023-03-01 | Journal article
DOI: 10.3847/2041-8213/acaeae
Contributors: Hsien 賢 Shang 尚; Ruben Krasnopolsky; Chun-Fan 君帆 Liu 劉
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Crossref

A Unified Model for Bipolar Outflows from Young Stars: Kinematic Signatures of Jets, Winds, and Their Magnetic Interplay with the Ambient Toroids

The Astrophysical Journal
2023-02-01 | Journal article
DOI: 10.3847/1538-4357/aca763
Contributors: Hsien 賢 Shang 尚; Chun-Fan 君帆 Liu 劉; Ruben Krasnopolsky; Liang-Yao 亮堯 Wang 王
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Crossref

Two-dimensional Particle-in-cell Simulations of Axisymmetric Black Hole Magnetospheres: Angular Dependence of the Blandford–Znajek Flux

The Astrophysical Journal
2023-02-01 | Journal article
DOI: 10.3847/1538-4357/aca8b0
Contributors: Kouichi Hirotani; Hsien 賢 Shang 尚; Ruben Krasnopolsky; Kenichi Nishikawa
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Crossref

Magnetic Spirals in Accretion Flows Originated from Misaligned Magnetic Fields

The Astrophysical Journal
2022-03-01 | Journal article
DOI: 10.3847/1538-4357/ac4d2e
Contributors: Weixiao Wang; Miikka S. Väisälä; Hsien Shang; Ruben Krasnopolsky; Zhi-Yun Li; Ka Ho Lam; Feng Yuan
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Crossref

Efficient Direct Method for Self-gravity in 3D, Accelerated by a Fast Fourier Transform

The Astrophysical Journal Supplement Series
2021-02-01 | Journal article
DOI: 10.3847/1538-4365/abca97
Contributors: Ruben Krasnopolsky; Mario Ponce Martínez; Hsien 賢 Shang 尚; Yao-Huan 寰 Tseng 曾耀; Chien-Chang 彰 Yen 嚴健
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Crossref

Interaction of Large- and Small-scale Dynamos in Isotropic Turbulent Flows from GPU-accelerated Simulations

The Astrophysical Journal
2021-02-01 | Journal article
DOI: 10.3847/1538-4357/abceca
Contributors: Miikka S. Väisälä; Johannes Pekkilä; Maarit J. Käpylä; Matthias Rheinhardt; Hsien 賢 Shang 尚; Ruben Krasnopolsky
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Crossref

Two-dimensional Particle-in-cell Simulations of Axisymmetric Black Hole Magnetospheres

The Astrophysical Journal
2021-02-01 | Journal article
DOI: 10.3847/1538-4357/abd3a6
Contributors: Kouichi Hirotani; Ruben Krasnopolsky; Hsien 賢 Shang 尚; Ken-ichi Nishikawa; Michael Watson
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Crossref

A Unified Model for Bipolar Outflows from Young Stars: The Interplay of Magnetized Wide-angle Winds and Isothermal Toroids

The Astrophysical Journal
2020-12-01 | Journal article
DOI: 10.3847/1538-4357/abbdb0
Contributors: Hsien 賢 Shang 尚; Ruben Krasnopolsky; Chun-Fan 君帆 Liu 劉; Liang-Yao 亮堯 Wang 王
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Crossref

The formation of rings and gaps in wind-launching non-ideal MHD discs: three-dimensional simulations

Monthly Notices of the Royal Astronomical Society
2019-03 | Journal article
DOI: 10.1093/mnras/sty3502
BIBCODE: 2019MNRAS.484..107S
ARXIV: 1810.02234
Contributors: Suriano, Scott S.; Li, Zhi-Yun; Krasnopolsky, Ruben; Suzuki, Takeru K.; Shang, Hsien
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NASA Astrophysics Data System

Time Evolution of 3D Disk Formation with Misaligned Magnetic Field and Rotation Axes

The Astrophysical Journal
2019-03 | Journal article
DOI: 10.3847/1538-4357/ab0307
BIBCODE: 2019ApJ...873..114V
ARXIV: 1812.11471
Contributors: Väisälä, Miikka S.; Shang, Hsien; Krasnopolsky, Ruben; Liu, Sheng-Yuan; Lam, Ka Ho; Li, Zhi-Yun
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NASA Astrophysics Data System
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JCMT POL-2 and ALMA Polarimetric Observations of 6000-100 au Scales in the Protostar B335: Linking Magnetic Field and Gas Kinematics in Observations and MHD Simulations

The Astrophysical Journal
2019-02 | Journal article
DOI: 10.3847/1538-4357/aafb6c
BIBCODE: 2019ApJ...871..243Y
ARXIV: 1901.00242
Contributors: Yen, Hsi-Wei; Zhao, Bo; Hsieh, I. -Ta; Koch, Patrick; Krasnopolsky, Ruben; Lee, Chin-Fei; Li, Zhi-Yun; Liu, Sheng-Yuan; Ohashi, Nagayoshi; Takakuwa, Shigehisa et al.
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NASA Astrophysics Data System

Constraint on ion-neutral drift velocity in the Class 0 protostar B335 from ALMA observations

Astronomy and Astrophysics
2018-07 | Journal article
DOI: 10.1051/0004-6361/201732195
BIBCODE:

2018A&A...615A..58Y

ARXIV: 1803.09893
Contributors: Yen, Hsi-Wei; Zhao, Bo; Koch, Patrick M.; Krasnopolsky, Ruben; Li, Zhi-Yun; Ohashi, Nagayoshi; Takakuwa, Shigehisa
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NASA Astrophysics Data System

The formation of rings and gaps in magnetically coupled disc-wind systems: ambipolar diffusion and reconnection

Monthly Notices of the Royal Astronomical Society
2018-06 | Journal article
DOI: 10.1093/mnras/sty717
BIBCODE: 2018MNRAS.477.1239S
ARXIV: 1712.06217
Contributors: Suriano, Scott S.; Li, Zhi-Yun; Krasnopolsky, Ruben; Shang, Hsien
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NASA Astrophysics Data System

Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet

The Astrophysical Journal
2018-04 | Journal article
DOI: 10.3847/2041-8213/aab76b
BIBCODE: 2018ApJ...856L..27G
ARXIV: 1803.06165
Contributors: Girart, J. M.; Fernández-López, M.; Li, Z. -Y.; Yang, H.; Estalella, R.; Anglada, G.; Áñez-López, N.; Busquet, G.; Carrasco-González, C.; Curiel, S. et al.
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NASA Astrophysics Data System

Decoupling of magnetic fields in collapsing protostellar envelopes and disc formation and fragmentation

Monthly Notices of the Royal Astronomical Society
2018-02 | Journal article
DOI: 10.1093/mnras/stx2617
BIBCODE: 2018MNRAS.473.4868Z
ARXIV: 1706.06504
Contributors: Zhao, Bo; Caselli, Paola; Li, Zhi-Yun; Krasnopolsky, Ruben
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NASA Astrophysics Data System

The formation of rings and gaps in protoplanetary disks by magnetic disk winds

American Astronomical Society Meeting Abstracts #231
2018-01 | Conference abstract
BIBCODE: 2018AAS...23133003S
Contributors: Suriano, Scott; Li, Zhi-Yun; Krasnopolsky, Ruben; Shang, Hsien
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NASA Astrophysics Data System

SMA and ALMA Studies of Disk- and Planet Formation around Low-mass Protostars

arXiv e-prints
2017-11 | Working paper
BIBCODE: 2017arXiv171100447T
ARXIV: 1711.00447
Contributors: Takakuwa, Shigehisa; Yen, Hsi-Wei; Chou, Ti-Lin; Ohashi, Nagayoshi; Aso, Yusuke; Koch, Patrick M.; Krasnopolsky, Ruben; Ho, Paul T. P.; Liu, Hauyu Baobab; Hirano, Naomi et al.
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NASA Astrophysics Data System

Rings and gaps produced by variable magnetic disc winds and avalanche accretion streams - I. Axisymmetric resistive MHD simulations

Monthly Notices of the Royal Astronomical Society
2017-07 | Journal article
DOI: 10.1093/mnras/stx735
BIBCODE: 2017MNRAS.468.3850S
ARXIV: 1702.01565
Contributors: Suriano, Scott S.; Li, Zhi-Yun; Krasnopolsky, Ruben; Shang, Hsien
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NASA Astrophysics Data System

Signs of Early-stage Disk Growth Revealed with ALMA

The Astrophysical Journal
2017-01 | Journal article
DOI: 10.3847/1538-4357/834/2/178
BIBCODE: 2017ApJ...834..178Y
ARXIV: 1611.08416
Contributors: Yen, Hsi-Wei; Koch, Patrick M.; Takakuwa, Shigehisa; Krasnopolsky, Ruben; Ohashi, Nagayoshi; Aso, Yusuke
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NASA Astrophysics Data System

Theory of Protostellar Disk Formation

From Interstellar Clouds to Star-Forming Galaxies: Universal Processes?
2016 | Conference paper
DOI: 10.1017/S1743921316007377
BIBCODE: 2016IAUS..315..118L
Contributors: Li, Zhi-Yun; Krasnopolsky, Ruben; Shang, Hsien
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NASA Astrophysics Data System

Protostellar disc formation enabled by removal of small dust grains

Monthly Notices of the Royal Astronomical Society
2016-08 | Journal article
DOI: 10.1093/mnras/stw1124
BIBCODE: 2016MNRAS.460.2050Z
ARXIV: 1602.02729
Contributors: Zhao, Bo; Caselli, Paola; Li, Zhi-Yun; Krasnopolsky, Ruben; Shang, Hsien; Nakamura, Fumitaka
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NASA Astrophysics Data System

A Two-temperature Model of Magnetized Protostellar Outflows

The Astrophysical Journal
2015-12 | Journal article
DOI: 10.1088/0004-637X/815/1/39
BIBCODE: 2015ApJ...815...39W
ARXIV: 1512.02609
Contributors: Wang, Liang-Yao; Shang, Hsien; Krasnopolsky, Ruben; Chiang, Tzu-Yang
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NASA Astrophysics Data System

No Keplerian Disk >10 AU Around the Protostar B335: Magnetic Braking or Young Age?

The Astrophysical Journal
2015-10 | Journal article
DOI: 10.1088/0004-637X/812/2/129
BIBCODE: 2015ApJ...812..129Y
ARXIV: 1509.04675
Contributors: Yen, Hsi-Wei; Takakuwa, Shigehisa; Koch, Patrick M.; Aso, Yusuke; Koyamatsu, Shin; Krasnopolsky, Ruben; Ohashi, Nagayoshi
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NASA Astrophysics Data System

A Hydrochemical Hybrid Code for Astrophysical Problems. I. Code Verification and Benchmarks for a Photon-dominated Region (PDR)

The Astrophysical Journal
2015-07 | Journal article
DOI: 10.1088/0004-637X/808/1/46
BIBCODE: 2015ApJ...808...46M
ARXIV: 1506.00471
Contributors: Motoyama, Kazutaka; Morata, Oscar; Shang, Hsien; Krasnopolsky, Ruben; Hasegawa, Tatsuhiko
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NASA Astrophysics Data System

The Earliest Stages of Star and Planet Formation: Core Collapse, and the Formation of Disks and Outflows

Protostars and Planets VI
2014 | Conference paper
DOI: 10.2458/azu_uapress_9780816531240-ch008
BIBCODE: 2014prpl.conf..173L
ARXIV: 1401.2219
Contributors: Li, Z. -Y.; Banerjee, R.; Pudritz, R. E.; Jørgensen, J. K.; Shang, H.; Krasnopolsky, R.; Maury, A.
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NASA Astrophysics Data System

On the Role of Pseudodisk Warping and Reconnection in Protostellar Disk Formation in Turbulent Magnetized Cores

The Astrophysical Journal
2014-10 | Journal article
DOI: 10.1088/0004-637X/793/2/130
BIBCODE: 2014ApJ...793..130L
ARXIV: 1408.2374
Contributors: Li, Zhi-Yun; Krasnopolsky, Ruben; Shang, Hsien; Zhao, Bo
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NASA Astrophysics Data System

ALMA Results of the Pseudodisk, Rotating Disk, and Jet in the Continuum and HCO<SUP>+</SUP> in the Protostellar System HH 212

The Astrophysical Journal
2014-05 | Journal article
DOI: 10.1088/0004-637X/786/2/114
BIBCODE: 2014ApJ...786..114L
ARXIV: 1403.5853
Contributors: Lee, Chin-Fei; Hirano, Naomi; Zhang, Qizhou; Shang, Hsien; Ho, Paul T. P.; Krasnopolsky, Ruben
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NASA Astrophysics Data System

Does Magnetic-field-Rotation Misalignment Solve the Magnetic Braking Catastrophe in Protostellar Disk Formation?

The Astrophysical Journal
2013-09 | Journal article
DOI: 10.1088/0004-637X/774/1/82
BIBCODE: 2013ApJ...774...82L
ARXIV: 1301.6545
Contributors: Li, Zhi-Yun; Krasnopolsky, Ruben; Shang, Hsien
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NASA Astrophysics Data System

Protostellar Accretion Flows Destabilized by Magnetic Flux Redistribution

The Astrophysical Journal
2012-09 | Journal article
DOI: 10.1088/0004-637X/757/1/77
BIBCODE: 2012ApJ...757...77K
ARXIV: 1205.4083
Contributors: Krasnopolsky, Ruben; Li, Zhi-Yun; Shang, Hsien; Zhao, Bo
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NASA Astrophysics Data System

Magnetic Flux Expulsion in Star Formation

The Astrophysical Journal
2011-11 | Journal article
DOI: 10.1088/0004-637X/742/1/10
BIBCODE: 2011ApJ...742...10Z
ARXIV: 1105.5739
Contributors: Zhao, Bo; Li, Zhi-Yun; Nakamura, Fumitaka; Krasnopolsky, Ruben; Shang, Hsien
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NASA Astrophysics Data System

Non-ideal MHD Effects and Magnetic Braking Catastrophe in Protostellar Disk Formation

The Astrophysical Journal
2011-09 | Journal article
DOI: 10.1088/0004-637X/738/2/180
BIBCODE: 2011ApJ...738..180L
ARXIV: 1106.2620
Contributors: Li, Zhi-Yun; Krasnopolsky, Ruben; Shang, Hsien
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NASA Astrophysics Data System

Disk Formation in Magnetized Clouds Enabled by the Hall Effect

The Astrophysical Journal
2011-05 | Journal article
DOI: 10.1088/0004-637X/733/1/54
BIBCODE: 2011ApJ...733...54K
ARXIV: 1101.3018
Contributors: Krasnopolsky, Ruben; Li, Zhi-Yun; Shang, Hsien
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NASA Astrophysics Data System

Disk Formation Enabled by Enhanced Resistivity

The Astrophysical Journal
2010-06 | Journal article
DOI: 10.1088/0004-637X/716/2/1541
BIBCODE: 2010ApJ...716.1541K
ARXIV: 1006.0793
Contributors: Krasnopolsky, Ruben; Li, Zhi-Yun; Shang, Hsien
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NASA Astrophysics Data System

Topologies of Current-free Axisymmetric Magnetospheres in Star-Disk Systems

The Astrophysical Journal
2009-10 | Journal article
DOI: 10.1088/0004-637X/703/2/1863
BIBCODE: 2009ApJ...703.1863K
Contributors: Krasnopolsky, Ruben; Shang, Hsien; Li, Zhi-Yun
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NASA Astrophysics Data System

Radiative bubbles blown by slow stellar winds

Monthly Notices of the Royal Astronomical Society
2008-05 | Journal article
DOI: 10.1111/j.1365-2966.2008.13056.x
BIBCODE: 2008MNRAS.386..903M
Contributors: Matzner, Christopher D.; Krasnopolsky, Ruben
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NASA Astrophysics Data System

Magnetocentrifugal Winds in Three Dimensions: A Nonaxisymmetric Steady State

The Astrophysical Journal
2006-12 | Journal article
DOI: 10.1086/510307
BIBCODE: 2006ApJ...653L..33A
ARXIV: astro-ph/0610630
Contributors: Anderson, Jeffrey M.; Li, Zhi-Yun; Krasnopolsky, Ruben; Blandford, Roger D.
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NASA Astrophysics Data System

Magnetocentrifugally Launched Winds are Stable in 3D

Protostars and Planets V Posters
2005 | Conference paper
BIBCODE: 2005prpl.conf.8499A
Contributors: Anderson, J. M.; Li, Z. -Y.; Krasnopolsky, R.; Blandford, R. D.
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NASA Astrophysics Data System

Nonlinear Criterion for the Stability of Molecular Clouds

The Astrophysical Journal
2005-12 | Journal article
DOI: 10.1086/497561
BIBCODE: 2005ApJ...635.1126K
ARXIV: astro-ph/0512629
Contributors: Krasnopolsky, Ruben; Gammie, Charles F.
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NASA Astrophysics Data System

The Structure of Magnetocentrifugal Winds. I. Steady Mass Loading

The Astrophysical Journal
2005-09 | Journal article
DOI: 10.1086/432040
BIBCODE: 2005ApJ...630..945A
ARXIV: astro-ph/0410704
Contributors: Anderson, Jeffrey M.; Li, Zhi-Yun; Krasnopolsky, Ruben; Blandford, Roger D.
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NASA Astrophysics Data System

Magnetocentrifugal Jets and Winds

Star Formation in the Interstellar Medium: In Honor of David Hollenbach
2004-12 | Conference paper
BIBCODE: 2004ASPC..323..307L
Contributors: Li, Z. -Y.; Krasnopolsky, R.; Anderson, J. M.; Blandford, R. D.
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NASA Astrophysics Data System

2- and 3-D Simulations of Magnetocentrifugal Disk-Winds: Acceleration and Stability

Astrophysics and Space Science
2003 | Journal article
DOI: 10.1023/B:ASTR.0000006203.79184.a8
BIBCODE:

2003Ap&SS.287...75K
Contributors: Krasnopolsky, Ruben; Li, Zhi-Yun; Blandford, Roger D.
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NASA Astrophysics Data System

Magnetocentrifugal Launching of Jets from Accretion Disks. II. Inner Disk-driven Winds

The Astrophysical Journal
2003-10 | Journal article
DOI: 10.1086/377494
BIBCODE: 2003ApJ...595..631K
ARXIV: astro-ph/0306519
Contributors: Krasnopolsky, Ruben; Li, Zhi-Yun; Blandford, Roger D.
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NASA Astrophysics Data System

Locating the Launching Region of T Tauri Winds: The Case of DG Tauri

The Astrophysical Journal
2003-06 | Journal article
DOI: 10.1086/376824
BIBCODE: 2003ApJ...590L.107A
ARXIV: astro-ph/0304127
Contributors: Anderson, Jeffrey M.; Li, Zhi-Yun; Krasnopolsky, Ruben; Blandford, Roger D.
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NASA Astrophysics Data System

Structure of Magnetocentrifugal Disk-Winds: From the Launching Surface to Large Distances

The Origin of Stars and Planets: The VLT View
2002 | Conference paper
DOI: 10.1007/10856518_33
BIBCODE: 2002osp..conf..259K
ARXIV: astro-ph/0107315
Contributors: Krasnopolsky, Ruben; Li, Zhi-Yun; Blandford, Roger D.
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NASA Astrophysics Data System
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