Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Kazuya Saigo"'
Autor:
Kengo Tachihara, Naofumi Fukaya, Kazuki Tokuda, Yasumasa Yamasaki, Takeru Nishioka, Daisei Abe, Tsuyoshi Inoue, Naoto Harada, Ayumu Shoshi, Shingo Nozaki, Asako Sato, Mitsuki Omura, Kakeru Fujishiro, Misato Fukagawa, Masahiro N. Machida, Takahiro Kanai, Yumiko Oasa, Toshikazu Onishi, Kazuya Saigo, Yasuo Fukui
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 131 (2024)
We report Atacama Large Millimeter/submillimeter Array/Atacama Compact Array observations of a high-density region of the Corona Australis cloud forming a young star cluster, and the results of resolving internal structures. In addition to embedded C
Externí odkaz:
https://doaj.org/article/9f4edafbeefd4dcb934f64617f8a7ed1
Autor:
Kazuki Tokuda, Naoto Harada, Mitsuki Omura, Tomoaki Matsumoto, Toshikazu Onishi, Kazuya Saigo, Ayumu Shoshi, Shingo Nozaki, Kengo Tachihara, Naofumi Fukaya, Yasuo Fukui, Shu-ichiro Inutsuka, Masahiro N. Machida
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 99 (2024)
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations have revealed an increasing number of compact protostellar disks with radii of less than a few tens of astronomical units and that young Class 0/I objects have an intrinsic size
Externí odkaz:
https://doaj.org/article/a8bfe1711943427d9b8a38210618eb0a
Autor:
Satoko Takahashi, Masahiro N. Machida, Mitsuki Omura, Doug Johnstone, Kazuya Saigo, Naoto Harada, Kohji Tomisaka, Paul T. P. Ho, Luis A. Zapata, Steve Mairs, Gregory J. Herczeg, Kotomi Taniguchi, Yuhua Liu, Asako Sato
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 48 (2024)
We present ∼0.″2 (∼80 au) resolution observations of the CO(2–1) and SiO(5–4) lines made with the Atacama large millimeter/submillimeter array toward an extremely young intermediate-mass protostellar source ( t _dyn < 1000 yr), MMS 1 locate
Externí odkaz:
https://doaj.org/article/76ef27cad96d41cba53bab2ff852f71b
Autor:
Shigehisa Takakuwa, Kazuya Saigo, Miyu Kido, Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Yuri Aikawa, Yusuke Aso, Sacha Gavino, Ilseung Han, Patrick M. Koch, Woojin Kwon, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Zhe-Yu Daniel Lin, Leslie W. Looney, Shoji Mori, Jinshi Sai (Insa Choi), Rajeeb Sharma, Patrick D. Sheehan, Kengo Tomida, Jonathan P. Williams, Yoshihide Yamato, Hsi-Wei Yen
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 24 (2024)
We performed radiative transfer calculations and observing simulations to reproduce the 1.3 mm dust-continuum and C ^18 O (2–1) images in the Class I protostar R CrA IRS7B-a, observed with the ALMA Large Program “Early Planet Formation in Embedde
Externí odkaz:
https://doaj.org/article/2b2b8435a6ce4803a299beabde8f2564
Autor:
Yusuke Aso, Woojin Kwon, Nagayoshi Ohashi, Jes K. Jørgensen, John J. Tobin, Yuri Aikawa, Itziar de Gregorio-Monsalvo, Ilseung Han, Miyu Kido, Patrick M. Koch, Shih-Ping Lai, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Zhe-Yu Daniel Lin, Leslie W. Looney, Suchitra Narayanan, Nguyen Thi Phuong, Jinshi Sai (Insa Choi), Kazuya Saigo, Alejandro Santamaría-Miranda, Rajeeb Sharma, Shigehisa Takakuwa, Travis J. Thieme, Kengo Tomida, Jonathan P. Williams, Hsi-Wei Yen
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 1, p 101 (2023)
Precise estimates of protostellar masses are crucial to characterize the formation of stars of low masses down to brown dwarfs (BDs; M _* < 0.08 M _☉ ). The most accurate estimation of protostellar mass uses the Keplerian rotation in the circumstel
Externí odkaz:
https://doaj.org/article/87aac3853e6246f5a644c7bd15443928
Autor:
Jinshi Sai (Insa Choi), Hsi-Wei Yen, Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Shigehisa Takakuwa, Kazuya Saigo, Yusuke Aso, Zhe-Yu Daniel Lin, Patrick M. Koch, Yuri Aikawa, Christian Flores, Itziar de Gregorio-Monsalvo, Ilseung Han, Miyu Kido, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Leslie W. Looney, Shoji Mori, Nguyen Thi Phuong, Alejandro Santamaría-Miranda, Rajeeb Sharma, Travis J. Thieme, Kengo Tomida, Jonathan P. Williams
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 1, p 67 (2023)
We have observed the Class 0/I protostellar system Ced110 IRS4 at an angular resolution of 0.″05 (∼10 au) as part of the Atacama Large Millimeter/submillimeter Array large program, Early Planet Formation in Embedded Disks. The 1.3 mm dust continu
Externí odkaz:
https://doaj.org/article/55aad55d0629467282c7a92e61e90fdc
Autor:
Kazuyuki Muraoka, AAS Journals Data Editors, Ayu Konishi, Kazuki Tokuda, Hiroshi Kondo, Rie E. Miura, Tomoka Tosaki, Sachiko Onodera, Nario Kuno, Masato I. N. Kobayashi, Kisetsu Tsuge, Hidetoshi Sano, Naoya Kitano, Shinji Fujita, Atsushi Nishimura, Toshikazu Onishi, Kazuya Saigo, Rin I. Yamada, Fumika Demachi, Kengo Tachihara, Yasuo Fukui, Akiko Kawamura
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 2, p 164 (2023)
We present the results of ALMA-ACA 7 m array observations in ^12 CO( J = 2–1), ^13 CO( J = 2–1), and C ^18 O( J = 2–1) line emission toward the molecular-gas disk in the Local Group spiral galaxy M33 at an angular resolution of 7.″31 × 6.″
Externí odkaz:
https://doaj.org/article/d268689c85164dbca3b678c3e93a8777
Autor:
Miyu Kido, Shigehisa Takakuwa, Kazuya Saigo, Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Yuri Aikawa, Yusuke Aso, Frankie J. Encalada, Christian Flores, Sacha Gavino, Itziar de Gregorio-Monsalvo, Ilseung Han, Shingo Hirano, Patrick M. Koch, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Zhe-Yu Daniel Lin, Leslie W. Looney, Shoji Mori, Suchitra Narayanan, Adele L. Plunkett, Nguyen Thi Phuong, Jinshi Sai (Insa Choi), Alejandro Santamaría-Miranda, Rajeeb Sharma, Patrick D. Sheehan, Travis J. Thieme, Kengo Tomida, Merel L. R. van ’t Hoff, Jonathan P. Williams, Yoshihide Yamato, Hsi-Wei Yen
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 2, p 190 (2023)
We present observations of the Class 0 protostar IRAS 16544–1604 in CB 68 from the “Early Planet Formation in Embedded Disks (eDisk)” ALMA Large program. The ALMA observations target continuum and lines at 1.3 mm with an angular resolution of
Externí odkaz:
https://doaj.org/article/dcb21dfb124b47179334bc194911ff7f
Autor:
Yoshihide Yamato, Yuri Aikawa, Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Shigehisa Takakuwa, Yusuke Aso, Jinshi Sai (Insa Choi), Christian Flores, Itziar de Gregorio-Monsalvo, Shingo Hirano, Ilseung Han, Miyu Kido, Patrick M. Koch, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Zhe-Yu Daniel Lin, Leslie W. Looney, Shoji Mori, Suchitra Narayanan, Nguyen Thi Phuong, Kazuya Saigo, Alejandro Santamaría-Miranda, Rajeeb Sharma, Travis J. Thieme, Kengo Tomida, Merel L. R. van ’t Hoff, Hsi-Wei Yen
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 1, p 11 (2023)
Constraining the physical and chemical structure of young embedded disks is crucial for understanding the earliest stages of planet formation. As part of the Early Planet Formation in Embedded Disks Atacama Large Millimeter/submillimeter Array Large
Externí odkaz:
https://doaj.org/article/d225daf6b8d04c7ab87d65506ef4816c
Autor:
Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Shigehisa Takakuwa, Patrick Sheehan, Yuri Aikawa, Zhi-Yun Li, Leslie W. Looney, Jonathan P. Williams, Yusuke Aso, Rajeeb Sharma, Jinshi Sai (Insa Choi), Yoshihide Yamato, Jeong-Eun Lee, Kengo Tomida, Hsi-Wei Yen, Frankie J. Encalada, Christian Flores, Sacha Gavino, Miyu Kido, Ilseung Han, Zhe-Yu Daniel Lin, Suchitra Narayanan, Nguyen Thi Phuong, Alejandro Santamaría-Miranda, Travis J. Thieme, Merel L. R. van ’t Hoff, Itziar de Gregorio-Monsalvo, Patrick M. Koch, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Adele Plunkett, Kazuya Saigo, Shingo Hirano, Ka Ho Lam, Shoji Mori
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 1, p 8 (2023)
We present an overview of the Large Program, “Early Planet Formation in Embedded Disks (eDisk),” conducted with the Atacama Large Millimeter/submillimeter Array (ALMA). The ubiquitous detections of substructures, particularly rings and gaps, in p
Externí odkaz:
https://doaj.org/article/8de2a3312a94468498ceae1927823927