Search Results - "OHASHI, NAGAYOSHI"

Change in the chemical composition of infalling gas forming a disk around a protostar by Sakai, Nami, Sakai, Takeshi, Hirota, Tomoya, Watanabe, Yoshimasa, Ceccarelli, Cecilia, Kahane, Claudine, Bottinelli, Sandrine, Caux, Emmanuel, Demyk, Karine, Vastel, Charlotte, Coutens, Audrey, Taquet, Vianney, Ohashi, Nagayoshi, Takakuwa, Shigehisa, Yen, Hsi-Wei, Aikawa, Yuri, Yamamoto, Satoshi

“…Observations of a protostellar envelope and disk (from which planets should form) in the relatively close star-forming region of the Taurus molecular cloud…”
Get full text

ALMA OBSERVATIONS OF THE TRANSITION FROM INFALL MOTION TO KEPLERIAN ROTATION AROUND THE LATE-PHASE PROTOSTAR TMC-1A by Aso, Yusuke, Ohashi, Nagayoshi, Saigo, Kazuya, Koyamatsu, Shin, Aikawa, Yuri, Hayashi, Masahiko, Machida, Masahiro N., Saito, Masao, Takakuwa, Shigehisa, Tomida, Kengo, Tomisaka, Kohji, Yen, Hsi-Wei

“…ABSTRACT We have observed the Class I protostar TMC-1A with the Atacama Millimeter/submillimeter Array (ALMA) in the emissions of 12CO and C18O (J = 2-1) and…”
Get full text

Disk Structure around the Class I Protostar L1489 IRS Revealed by ALMA: A Warped-disk System by Sai, Jinshi, Ohashi, Nagayoshi, Saigo, Kazuya, Matsumoto, Tomoaki, Aso, Yusuke, Takakuwa, Shigehisa, Aikawa, Yuri, Kurose, Ippei, Yen, Hsi-Wei, Tomisaka, Kohji, Tomida, Kengo, Machida, Masahiro N.

“…We have observed the Class I protostar L1489 IRS with the Atacama Millimeter/submillimeter Array (ALMA) in Band 6. The C18O J = 2-1 line emission shows…”
Get full text

ALMA Observations of the Protostar L1527 IRS: Probing Details of the Disk and the Envelope Structures by Aso, Yusuke, Ohashi, Nagayoshi, Aikawa, Yuri, Machida, Masahiro N., Saigo, Kazuya, Saito, Masao, Takakuwa, Shigehisa, Tomida, Kengo, Tomisaka, Kohji, Yen, Hsi-Wei

“…We have recently observed the Class 0/I protostar L1527 IRS using the Atacama Large Millimeter/submillimeter Array (ALMA) during its Cycle 1 in 220 GHz dust…”
Get full text

Planet Formation in AB Aurigae: Imaging of the Inner Gaseous Spirals Observed inside the Dust Cavity by Tang, Ya-Wen, Guilloteau, Stephane, Dutrey, Anne, Muto, Takayuki, Shen, Bo-Ting, Gu, Pin-Gao, Inutsuka, Shu-ichiro, Momose, Munetake, Pietu, Vincent, Fukagawa, Misato, Chapillon, Edwige, Ho, Paul T. P., Folco, Emmanuel di, Corder, Stuartt, Ohashi, Nagayoshi, Hashimoto, Jun

“…We report the results of ALMA observations of a protoplanetary disk surrounding the Herbig Ae star AB Aurigae. We obtained high-resolution (0 1; 14 au) images…”
Get full text

Probing Velocity Structures of Protostellar Envelopes: Infalling and Rotating Envelopes within Turbulent Dense Cores by Sai (Insa Choi), Jinshi, Ohashi, Nagayoshi, Yen, Hsi-Wei, Maury, Anaëlle J., Maret, Sébastien

“…Abstract We have observed the three low-mass protostars, IRAS 15398−3359, L1527 IRS, and TMC-1A, with the ALMA 12 m array, the ACA 7 m array, and the IRAM-30 m…”
Get full text

Early Planet Formation in Embedded Disks (eDisk). I. Overview of the Program and First Results by Ohashi, Nagayoshi, Tobin, John J., Jørgensen, Jes K., Takakuwa, Shigehisa, Sheehan, Patrick, Aikawa, Yuri, Li, Zhi-Yun, Looney, Leslie W., Williams, Jonathan P., Aso, Yusuke, Sharma, Rajeeb, Sai (Insa Choi), Jinshi, Yamato, Yoshihide, Lee, Jeong-Eun, Tomida, Kengo, Yen, Hsi-Wei, Encalada, Frankie J., Flores, Christian, Gavino, Sacha, Kido, Miyu, Han, Ilseung, Lin, Zhe-Yu Daniel, Narayanan, Suchitra, Phuong, Nguyen Thi, Santamaría-Miranda, Alejandro, Thieme, Travis J., van ’t Hoff, Merel L. R., de Gregorio-Monsalvo, Itziar, Koch, Patrick M., Kwon, Woojin, Lai, Shih-Ping, Lee, Chang Won, Plunkett, Adele, Saigo, Kazuya, Hirano, Shingo, Lam, Ka Ho, Mori, Shoji

“…Abstract We present an overview of the Large Program, “Early Planet Formation in Embedded Disks (eDisk),” conducted with the Atacama Large…”
Get full text

UNVEILING THE EVOLUTIONARY SEQUENCE FROM INFALLING ENVELOPES TO KEPLERIAN DISKS AROUND LOW-MASS PROTOSTARS by Yen, Hsi-Wei, Takakuwa, Shigehisa, OHASHI, NAGAYOSHI, Ho, Paul T P

“…We performed Submillimeter Array observations in the C super(18)O(2-1) emission line toward six Class 0 and I protostars to study rotational motions of their…”
Get full text

Which Part of Dense Cores Feeds Material to Protostars? The Case of L1489 IRS by Sai, Jinshi, Ohashi, Nagayoshi, Maury, Anaëlle J., Maret, Sébastien, Yen, Hsi-Wei, Aso, Yusuke, Gaudel, Mathilde

“…Abstract We have conducted mapping observations (∼2′ × 2′) of the Class I protostar L1489 IRS using the 7 m array of the Atacama Compact Array and the IRAM 30…”
Get full text

The Sizes and Depletions of the Dust and Gas Cavities in the Transitional Disk J160421.7-213028 by Dong, Ruobing, Marel, Nienke van der, Hashimoto, Jun, Chiang, Eugene, Akiyama, Eiji, Liu, Hauyu Baobab, Muto, Takayuki, Knapp, Gillian R., Tsukagoshi, Takashi, Brown, Joanna, Bruderer, Simon, Koyamatsu, Shin, Kudo, Tomoyuki, Ohashi, Nagayoshi, Rich, Evan, Satoshi, Mayama, Takami, Michihiro, Wisniewski, John, Yang, Yi, Zhu, Zhaohuan, Tamura, Motohide

“…We report ALMA Cycle 2 observations of 230 GHz (1.3 mm) dust continuum emission, and 12CO, 13CO, and C18O J = 2-1 line emission, from the Upper Scorpius…”
Get full text

Early Planet Formation in Embedded Disks (eDisk). II. Limited Dust Settling and Prominent Snow Surfaces in the Edge-on Class I Disk IRAS 04302+2247 by Lin, Zhe-Yu Daniel, Li, Zhi-Yun, Tobin, John J., Ohashi, Nagayoshi, Jørgensen, Jes Kristian, Looney, Leslie W., Aso, Yusuke, Takakuwa, Shigehisa, Aikawa, Yuri, van’t Hoff, Merel L. R., de Gregorio-Monsalvo, Itziar, Encalada, Frankie J., Flores, Christian, Gavino, Sacha, Han, Ilseung, Kido, Miyu, Koch, Patrick M., Kwon, Woojin, Lai, Shih-Ping, Lee, Chang Won, Lee, Jeong-Eun, Phuong, Nguyen Thi, Sai (Insa Choi), Jinshi, Sharma, Rajeeb, Sheehan, Patrick, Thieme, Travis J., Williams, Jonathan P., Yamato, Yoshihide, Yen, Hsi-Wei

“…Abstract While dust disks around optically visible, Class II protostars are found to be vertically thin, when and how dust settles to the midplane are unclear…”
Get full text

Multiple Outflows around a Single Protostar IRAS 15398−3359 by Sai, Jinshi, Yen, Hsi-Wei, Machida, Masahiro N., Ohashi, Nagayoshi, Aso, Yusuke, Maury, Anaëlle J., Maret, Sébastien

“…Abstract We present the results of our mosaic observations of a single Class 0 protostar IRAS 15398−3359 with the Atacama Compact Array in the CO J = 2–1 line…”
Get full text

TRANSITION FROM THE INFALLING ENVELOPE TO THE KEPLERIAN DISK AROUND L1551 IRS 5 by Chou, Ti-Lin, Takakuwa, Shigehisa, Yen, Hsi-Wei, Ohashi, Nagayoshi, Ho, Paul T P

“…We present combined Submillimeter Array (SMA)+Atacama Submillimeter Telescope Experiment (ASTE) images of the Class I protobinary L1551 IRS 5 in the CS (J =…”
Get full text

The Surprisingly Low Carbon Mass in the Debris Disk around HD 32297 by Cataldi, Gianni, Wu, Yanqin, Brandeker, Alexis, Ohashi, Nagayoshi, Moór, Attila, Olofsson, Göran, Ábrahám, Péter, Asensio-Torres, Ruben, Cavallius, Maria, Dent, William R. F., Grady, Carol, Henning, Thomas, Higuchi, Aya E., Hughes, A. Meredith, Janson, Markus, Kamp, Inga, Kóspál, Ágnes, Redfield, Seth, Roberge, Aki, Weinberger, Alycia, Welsh, Barry

“…Gas has been detected in a number of debris disks. It is likely secondary, i.e., produced by colliding solids. Here, we report ALMA Band 8 observations of…”
Get full text

DIRECT IMAGING OF A COMPACT MOLECULAR OUTFLOW FROM A VERY LOW LUMINOSITY OBJECT: L1521F-IRS by Takahashi, Satoko, OHASHI, NAGAYOSHI, Bourke, Tyler L

“…Studying the physical conditions of very low luminosity objects (VeLLOs; L sub(bol) < 0.1 L sub([middot in circle])) is important for understanding the…”
Get full text

Increasing Mass-to-flux Ratio from the Dense Core to the Protostellar Envelope around the Class 0 Protostar HH 211 by Yen, Hsi-Wei, Koch, Patrick M., Lee, Chin-Fei, Hirano, Naomi, Ohashi, Nagayoshi, (Insa Choi), Jinshi Sai, Takakuwa, Shigehisa, Tang, Ya-Wen, Tatematsu, Ken’ichi, Zhao, Bo

“…Abstract To study the transportation of magnetic flux from large to small scales in protostellar sources, we analyzed the Nobeyama 45 m N 2 H + (1–0), JCMT 850…”
Get full text

Kinematics and Physical Conditions of the Innermost Envelope in B335 by Yen, Hsi-Wei, Takakuwa, Shigehisa, Ohashi, Nagayoshi

“…We made C18O (2-1) and CS (7-6) images of the protostellar envelope around B335 with a high spatial dynamic range from ~10,000 to ~400 AU by combining the…”
Get full text

Protostellar Evolution in Serpens Main: Possible Origin of Disk-size Diversity by Aso, Yusuke, Hirano, Naomi, Aikawa, Yuri, Machida, Masahiro N., Ohashi, Nagayoshi, Saito, Masao, Takakuwa, Shigehisa, Yen, Hsi-Wei, Williams, Jonathan P.

“…We have observed the submillimeter continuum condensations SMM2, SMM4, SMM9, and SMM11 in the star-forming cluster Serpens Main using the Atacama Large…”
Get full text

The Flared Gas Structure of the Transitional Disk around Sz 91 by Tsukagoshi, Takashi, Momose, Munetake, Kitamura, Yoshimi, Saito, Masao, Kawabe, Ryohei, Andrews, Sean, Wilner, David, Kudo, Tomoyuki, Hashimoto, Jun, Ohashi, Nagayoshi, Tamura, Motohide

“…We report 0 14 resolution observations of the dust continuum at band 7, and the CO(3-2) and HCO+(4-3) line emissions toward the transitional disk around Sz 91…”
Get full text

Early Planet Formation in Embedded Disks (eDisk). VII. Keplerian Disk, Disk Substructure, and Accretion Streamers in the Class 0 Protostar IRAS 16544–1604 in CB 68 by Kido, Miyu, Takakuwa, Shigehisa, Saigo, Kazuya, Ohashi, Nagayoshi, Tobin, John J., Jørgensen, Jes K., Aikawa, Yuri, Aso, Yusuke, Encalada, Frankie J., Flores, Christian, Gavino, Sacha, de Gregorio-Monsalvo, Itziar, Han, Ilseung, Hirano, Shingo, Koch, Patrick M., Kwon, Woojin, Lai, Shih-Ping, Lee, Chang Won, Lee, Jeong-Eun, Li, Zhi-Yun, Lin, Zhe-Yu Daniel, Looney, Leslie W., Mori, Shoji, Narayanan, Suchitra, Plunkett, Adele L., Phuong, Nguyen Thi, (Insa Choi), Jinshi Sai, Santamaría-Miranda, Alejandro, Sharma, Rajeeb, Sheehan, Patrick D., Thieme, Travis J., Tomida, Kengo, van ’t Hoff, Merel L. R., Williams, Jonathan P., Yamato, Yoshihide, Yen, Hsi-Wei

“…Abstract 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…”
Get full text