Faculty Profiles - TAKAKUWA Shigehisa

Papers - TAKAKUWA Shigehisa

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Takeshi Kamazaki, Fumitaka Nakamura, Rhohei Kawabe, Chihomi Hara, Shigehisa Takakuwa, Naomi Hirano, James Di Francesco, Rachel Friesen, and Motohide Tamura . ALMA Observations of the rho Ophiuchus B2 Region. I. Molecular Outflows and Their Driving Sources . The Astrophysical Journal871 ( 1 ) 86 - 86 2019.1Reviewed

Tomoaki Matsumoto, Kazuya Saigo, and Shigehisa Takakuwa . Structure of a Protobinary System: An Asymmetric Circumbinary Disk and Spiral Arms . The Astrophysical Journal871 ( 1 ) 36 - 36 2019.1Reviewed

Chun-Ju Wu, Naomi Hirano, Shigehisa Takakuwa, Hsi-Wei Yen, and Yusuke Aso . Physical and Chemical Conditions of the Protostellar Envelope and the Protoplanetary Disk in HL Tau . The Astrophysical Journal869 ( 1 ) 59 - 59 2018.12Reviewed

Ryohei Kawabe, Chihomi Hara, Fumitaka Nakamura, Kazuya Saigo, Takeshi Kamazaki, Yoshito Shimajiri, Kengo Tomida, Shigehisa Takakuwa, Yohko Tsuboi, Masahiro N. Machida, James Di Francesco, Rachel Friesen, Naomi Hirano, Yumiko Oasa, Motohide Tamura, Yoichi Tamura, Takashi Tsukagoshi, & David J. Wilner . Extremely Dense Cores Associated with Chandra Sources in Ophiuchus A: Forming Brown Dwarfs Unveiled? . The Astrophysical Journal866 ( 141 ) 15pp 2018.10Reviewed

Shutaro Ueda, Tetsu Kitayama, Masamune Oguri, Eiichiro Komatsu, Takuya Akahori, Daisuke Iono, Takumi Izumi, Ryohei Kawabe, Kotaro Kohno, Hiroshi Matsuo, Naomi Ota, Yasushi Suto, Shigehisa Takakuwa, Motokazu Takizawa, Takahiro Tsutsumi, & Kohji Yoshikawa . A Cool Core Disturbed: Observational Evidence for the Coexistence of Subsonic Sloshing Gas and Stripped Shock-heated Gas around the Core of RX J1347.5–1145 . The Astrophysical Journal866 ( 48 ) 13pp 2018.10Reviewed

Shigehisa Takakuwa, Yusuke Tsukamoto, Kazuya Saigo, & Masao Saito . Possible Counterrotation between the Disk and Protostellar Envelope around the Class I Protostar IRAS 04169+2702 . The Astrophysical Journal865 ( 51 ) 17pp 2018.9Reviewed

Yusuke Aso, Naomi Hirano, Yuri Aikawa, Masahiro N. Machida, Shigehisa Takakuwa, Hsi-Wei Yen, & Jonathan P. Williams . The Distinct Evolutionary Nature of Two Class 0 Protostars in Serpens Main SMM4 . The Astrophysical Journal863 ( 19 ) 16pp 2018.8Reviewed

Hsi-Wei Yen, Bo Zhao, Patrick M. Koch, Ruben Krasnopolsky, Zhi-Yun Li, Nagayoshi Ohashi, & Shigehisa Takakuwa . Constraint on ion-neutral drift velocity in the Class 0 protostar B335 from ALMA observations . Astronomy and Astrophysics615 ( A58 ) 11pp 2018.7Reviewed

Patrick M. Koch, Ya-Wen Tang, Paul T. P. Ho, Hsi-Wei Yen, Yu-Nung Su, Shigehisa Takakuwa . Polarization Properties and Magnetic Field Structures in the High-mass Star-forming Region W51 Observed with ALMA . The Astrophysical Journal855 ( 39 ) 19pp 2018.3Reviewed

Hsi-Wei Yen, Shigehisa Takakuwa, You-Hua Chu, Naomi Hirano, Paul T. P. Ho, Kazuhiro D. Kanagawa, Chin-Fei Lee, Hauyu Baobab Liu, Sheng-Yuan Liu, Tomoaki Matsumoto, Satoki Matsushita, Takayuki Muto, Kazuya Saigo, Ya-Wen Tang, Alfonso Trejo, and Chun-Ju Wu . 1000 au Exterior Arcs Connected to the Protoplanetary Disk around HL Tauri . Astronomy & Astrophysics608 A134 2017.12Reviewed

Yusuke Aso, Nagayoshi Ohashi, Yuri Aikawa, Masahiro N. Machida, Kazuya Saigo, Masao Saito, Shigehisa Takakuwa, Kengo Tomida, Kohji Tomisaka, Hsi-Wei Yen, Jonathan P. Williams . ALMA Observations of SMM11 Reveal an Extremely Young Protostar in Serpens Main Cluster . The Astrophysical Journal Letters850 ( L2 ) 6pp 2017.11Reviewed

Yusuke Aso, Nagayoshi Ohashi, Yuri Aikawa, Masahiro N. Machida, Kazuya Saigo, Masao Saito, Shigehisa Takakuwa, Kengo Tomida, Kohji Tomisaka, Hsi-Wei Yen . ALMA Observations of the Protostar L1527 IRS: Probing Details of the Disk and the Envelope Structures . The Astrophysical Journal849 ( 56 ) 15pp 2017.11Reviewed

Matsumoto T. . Theoretical Models of Protostellar Binary and Multiple Systems with AMR Simulations . Journal of Physics: Conference Series837 ( 1 ) 2017.5

Shigehisa Takakuwa, Kazuya Saigo, Tomoaki Matsumoto, Masao Saito, Jeremy Lim, Tomoyuki Hanawa, Hsi-Wei Yen, & Paul T. P. Ho . Spiral Arms, Infall, and Misalignment of the Circumbinary Disk from the Circumstellar Disks in the Protostellar Binary System L1551 NE . The Astrophysical Journal837 ( 86 ) 14pp 2017.3Reviewed

Hsi-Wei Yen, Patrick M. Koch, Shigehisa Takakuwa, Ruben Krasnopolsky, Nagayoshi Ohashi, and Yusuke Aso . Signs of Early-stage Disk Growth Revealed with ALMA . The Astrophysical Journal834 ( 178 ) 23pp 2017.1Reviewed

Koch P.M. . Magnetic fields from filaments to cores . Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society88 ( 4 ) 557 - 559 2017

Hsi-Wei Yen, Patrick M. Koch, Hauyu Baobab Liu, Evaria Puspitaningrum, Naomi Hirano, Chin-Fei Lee, and Shigehisa Takakuwa . Stacking Spectra in Protoplanetary Disks: Detecting Intensity Profiles from Hidden Molecular Lines in HD 163296 . The Astrophysical Journal832 ( 204 ) 9pp 2016.12Reviewed

Gigi Y. C. Leung, Jeremy Lim, and Shigehisa Takakuwa . Tracing Infall and Rotation along the Outflow Cavity Walls of the L483 Protostellar Envelope . The Astrophysical Journal833 ( 55 ) 19pp 2016.12Reviewed

Jeremy Lim, Tomoyuki Hanawa, Paul K. H. Yeung, Shigehisa Takakuwa, Tomoaki Matsumoto, and Kazuya Saigo . Formation of the Unequal-mass Binary Protostars in L1551NE by Rotationally driven Fragmentation . The Astrophysical Journal831 ( 90 ) 13pp 2016.11Reviewed

Kitayama, T., Ueta, S., Takakuwa, S., et al. . The Sunyaev-Zel'dovich effect at 5″: RX J1347.5-1145 imaged by ALMA . Publications of the Astronomical Society of Japan68 ( 88 ) 19pp 2016.10Reviewed

Language：English Publishing type：Research paper (scientific journal) Publisher：日本天文学会

We present the first image of the thermal Sunyaev-Zel'dovich effect (SZE) obtained by the Atacama Large Millimeter/submillimeter Array (ALMA). Combining 7-m and 12-m arrays in Band 3, we create an SZE map toward a galaxy cluster RX J1347.5-1145 with 5″ resolution (corresponding to a physical size of 20 h-1 kpc), the highest angular and physical spatial resolutions achieved to-date for imaging the SZE, while retaining extended signals out to 40″. The 1 σ statistical sensitivity of the image is 0.017 mJy beam-1 or 0.12 mKCMB at the 5″ full width at half maximum. The SZE image shows a good agreement with an electron pressure map reconstructed independently from the X-ray data and offers a new probe of the small-scale structure of the intracluster medium. Our results demonstrate that ALMA is a powerful instrument for imaging the SZE in compact galaxy clusters with unprecedented angular resolution and sensitivity. As the first report on the detection of the SZE by ALMA, we present detailed analysis procedures including corrections for the missing flux, to provide guiding methods for analyzing and interpreting future SZE images obtained by ALMA.

DOI： 10.1093/pasj/psw082

arXiv

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Papers - TAKAKUWA Shigehisa