Magnetic Fields in Massive Star-forming Regions (MagMaR): Unveiling an Hourglass Magnetic Field in G333.46–0.16 Using ALMA

Autor: Piyali Saha, Patricio Sanhueza, Marco Padovani, Josep M. Girart, Paulo C. Cortés, Kaho Morii, Junhao Liu, Á. Sánchez-Monge, Daniele Galli, Shantanu Basu, Patrick M. Koch, Maria T. Beltrán, Shanghuo Li, Henrik Beuther, Ian W. Stephens, Fumitaka Nakamura, Qizhou Zhang, Wenyu Jiao, M. Fernández-López, Jihye Hwang, Eun Jung Chung, Kate Pattle, Luis A. Zapata, Fengwei Xu, Fernando A. Olguin, Ji-hyun Kang, Janik Karoly, Chi-Yan Law, Jia-Wei Wang, Timea Csengeri, Xing Lu, Yu Cheng, Jongsoo Kim, Spandan Choudhury, Huei-Ru Vivien Chen, Charles L. H. Hull

Publikováno v: The Astrophysical Journal Letters, Vol 972, Iss 1, p L6 (2024)

The contribution of the magnetic field to the formation of high-mass stars is poorly understood. We report the high angular resolution (∼0.″3, 870 au) map of the magnetic field projected on the plane of the sky ( B _POS ) toward the high-mass sta

Externí odkaz: https://doaj.org/article/b56d5418f6b34c8e9d2b71550d5aece9

The ALMA Survey of 70 μm Dark High-mass Clumps in Early Stages (ASHES). X. Hot Gas Reveals Deeply Embedded Star Formation

Autor: Natsuko Izumi, Patricio Sanhueza, Patrick M. Koch, Xing Lu, Shanghuo Li, Giovanni Sabatini, Fernando A. Olguin, Qizhou Zhang, Fumitaka Nakamura, Ken’ichi Tatematsu, Kaho Morii, Takeshi Sakai, Daniel Tafoya

Publikováno v: The Astrophysical Journal, Vol 963, Iss 2, p 163 (2024)

Massive infrared dark clouds (IRDCs) are considered to host the earliest stages of high-mass star formation. In particular, 70 μ m dark IRDCs are the colder and more quiescent clouds. At a scale of about 5000 au using formaldehyde (H _2 CO) emission

Externí odkaz: https://doaj.org/article/91dd913f772a44caa839b99d4705350b

The ALMA Survey of 70 μm Dark High-mass Clumps in Early Stages (ASHES). IX. Physical Properties and Spatial Distribution of Cores in IRDCs

Autor: Kaho Morii, Patricio Sanhueza, Fumitaka Nakamura, Qizhou Zhang, Giovanni Sabatini, Henrik Beuther, Xing Lu, Shanghuo Li, Guido Garay, James M. Jackson, Fernando A. Olguin, Daniel Tafoya, Ken’ichi Tatematsu, Natsuko Izumi, Takeshi Sakai, Andrea Silva

Publikováno v: The Astrophysical Journal, Vol 950, Iss 2, p 148 (2023)

The initial conditions found in infrared dark clouds (IRDCs) provide insights on how high-mass stars and stellar clusters form. We have conducted high-angular resolution and high-sensitivity observations toward thirty-nine massive IRDC clumps, which

Externí odkaz: https://doaj.org/article/17244f393910410da54b1b8bfffb38ae

Digging into the Interior of Hot Cores with ALMA (DIHCA). II. Exploring the Inner Binary (Multiple) System Embedded in G335 MM1 ALMA1

Autor: Fernando A. Olguin, Patricio Sanhueza, Adam Ginsburg, Huei-Ru Vivien Chen, Qizhou Zhang, Shanghuo Li, Xing Lu, Takeshi Sakai

We observed the high-mass protostellar core G335.579-0.272 ALMA1 at ${\sim}200$ au (0.05") resolution with the Atacama Large Millimeter/submillimeter Array (ALMA) at 226 GHz (with a mass sensitivity of $5\sigma=0.2$ M$_\odot$ at 10 K). We discovered

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97edae8af65b37782973635ec53c4b52
http://arxiv.org/abs/2203.04333

Gravity Driven Magnetic Field at ~1000 au Scales in High-mass Star Formation

Autor: Andrés E. Guzmán, Fernando A. Olguin, James M. Jackson, Huei-Ru Vivien Chen, Ian W. Stephens, Ken'ichi Tatematsu, Andrea Silva, Ya-Wen Tang, Paulo C. Cortes, Marco Padovani, P. Frau, Qizhou Zhang, Charles L. H. Hull, Josep M. Girart, Luis A. Zapata, Benjamin Wu, Daniele Galli, Takeshi Sakai, Xing Lu, Manuel Fernández-López, Patrick M. Koch, Fumitaka Nakamura, Patricio Sanhueza

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

A full understanding of high-mass star formation requires the study of one of the most elusive components of the energy balance in the interstellar medium: magnetic fields. We report Atacama Large Millimeter/submillimeter Array (ALMA) 1.2 mm, high-re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a30dc23e13df6a145dd329c479d8c5b1
http://arxiv.org/abs/2106.03866