In order to understand the fundamental issues of star formation, such as the origin of the initial mass function, the observations of molecular clouds as the formation site of protostars are critical. Molecular clouds have hierarchical structures (such as filamentary clouds and dense cores) that are dominated by turbulence and magnetic fields, and the size/density of the structures varies dramatically as the star formation progresses. Observations with state-of-the-art facilities at mm / sub-mm wavelengths such as ALMA have discovered essential features generated by turbulence and magnetic fields that can be a cause of the diversity of star formation. High-resolution ALMA observations are providing us with bird-eye views of nearby galaxies, which is in different environments compared to the Galaxy (e.g., metallicity, far-UV radiation), with a sufficient angular resolution to investigate the detailed structures of molecular clouds and the star formation activities therein. For instance, observations toward the Magellanic Clouds have spatially resolved molecular filaments toward a number of Giant Molecular Clouds and also detected complex organic molecules at hot cores as seen in the Galaxy. In this workshop, we comprehensively outline the recent ALMA results targeting from local star-forming regions to nearby galaxies and will make detailed plans for the ALMA Cycle 7 proposals, also by combining with the theoretical simulation related.
The speakers will introduce their idea of the ALMA Cycle 7 proposals. The main focus is the hierarchical structures, including filaments/cores, of the molecular clouds whose size scale spans many orders of magnitude. The best use of various probes, including CO, [CI], deuterated molecules, and so on, will be discussed as tracers of different evolutionary stages from low-density diffuse gas to high-density cores. We also would like to promote the science at the higher frequencies and with the wide range of spatial frequencies with an emphasis of the use the equipment developed by Japan, such as Atacama Compact Array and the Band 4, 8, and 10 receivers.
Time for talk
Basically in English. We accept Japanese oral talks, especially, for young researchers, but with English PPTs.
Participants can freely use the conference room for discussions after the WS.
This workshop is financially supported by an ALMA WS of NAOJ.
Session1 : Low-mass star formation & ISM in nearby molecular clouds (13:00-)
|2||Kazuya Saigo||NAOJ||ALMA Cycle 7 capabilities pdf|
|3||Shigehisa Takakuwa||Kagoshima Univ.||Highest resolution ALMA Study of Protostellar Disks|
|4||Sanemichi Takahashi||Kogakuin Univ./NAOJ||Ring-Gap Structure in a Young Protoplanetary Disk by a Magnetic Disk Wind pdf|
|5||Torsten Stamer||Nagoya Univ.||Radiation Hydrodynamics Simulations of Brown Dwarf Formation: The lifetime of the First Core and its observational implications|
|6||Kazuki Tokuda||Osaka Pref. Univ./NAOJ||Revealing substructures of prestellar/protostellar cores in low-mass star-forming regions with ALMA pdf|
|7||Kazuya Saigo||NAOJ||Strange objects in the nearest mini cluster forming dense clump Barnard 59 pdf|
|8||Ryohei Kawabe||NAOJ||Oph領域で見出した極めて若い原始星候補天体のfollow-up観測 (仮題)|
|9||Kengo Tachihara||Nagoya Univ.||Molecular cloud formation and [CI] observations|
|10||Mehrnoosh Tahani||Univ. of Calgary||A New Method to Determine the Line-of-Sight Magnetic Field Structure in Molecular Clouds pdf|
Session2 : High-mass star formation in the Galaxy (protostellar scale) (09:30-)
|11||Yumiko Oasa||Saitama Univ.||Investigation of the Initial Mass Function at Very Low-Mass Side: Is it universal?|
|12||Tomoya Hirota||Mizusawa VLBI Observatory, NAOJ||High-frequency High-resolution observations of High-mass young stella objects by High-excitation lines with ALMA pdf|
|13||Kazuhito Motogi||Yamaguchi Univ.||Hierarchical accretion in high mass star formation: from filament to protostar (TBD)|
|14||Kei Tanaka||Osaka Univ./NAOJ||Jets & Outflows in Massive Star Formation pdf|
|15||Yuko Matsushita||Kyusyu Unv.||Survey of Extremely High Velocity Sources pdf|
|16||Yichen Zhang||RIKEN||Probing the Envelope-Disk Transition around Massive Protostar pdf|
|17||Takeshi Sakai||UEC||IRDC内の若いホットコアの化学組成について (TBD)|
|18||Kazufumi Torii||Nobeyama Radio Observatory, NAOJ||ALMA observations of the youngest Galactic massive star cluster RCW38 pptx||
Session3 : High-mass star formation in the Galaxy (cloud scale) (14:30~)
|19||Yasuo Fukui||Nagoya Univ.||Cloud-cloud collision: A comprehensive view updated pptx|
|20||Mikito Kohno||Nagoya Univ.||FUGIN: CO observations toward the giant molecular cloud complex W43: Dense gas and mini-starbursts at the tangential direction of the Scutum arm pdf|
|21||Atsushi Nishimura||Nagoya Univ.||M17SW のフィラメント・ファイバーの ALMA 観測|
|22||Kunihiko Tanaka||Keio Univ.||銀河系中心の分子雲衝突(候補)領域の物理状態測定・星団形成活動について(TBD)|
|23||Rei Enokiya||Nagoya Univ.||Star Formation in the Galactic Center pdf|
|18:00-||Banquet (Free discussion)|
Session4 : Star formation & ISM in the Magellanic Clouds/nearby galaxies (09:30-)
|24||Toshikazu Onishi||Osaka Pref. Univ.||Molecular gas distribution in the GMCs in the Magellanic Clouds pptx|
|25||Ryohei Harada||Osaka Pref. Univ.||ALMA observations of high-mass YSOs in isolated environments in the LMC pdf|
|26||Ryunosuke Maeda||Nagoya Univ.||Formation of Massive Star Clusters by Fast HI Gas Collision pdf|
|27||Takashi Shimonishi||Tohoku Univ.||Observations of hot molecular cores in the Magellanic Clouds: Current status and future prospects pdf|
|28||Sarolta Zahorecz||Osaka Pref. Univ./NAOJ||Survey type observations to reveal hot cores in the Magellanic Clouds pdf|
|29||Hidetoshi Sano||Nagoya Univ.||ALMA CO studies in the Magellanic supernova remnants pdf|
|30||Yumiko Yamane||Nagoya Univ.||SNR shock interaction with the molecular cloud toward N49 pdf|
|31||Masato Kobayashi||Osaka Univ.||Observational/theoretical investigations of GMC evolution in external galaxies including low-mass molecular clouds pdf|
|32||Kazuyuki Muraoka||Osaka Pref. Univ.||Revealing the roles of filamentary clouds in GMC evolution of M33|
|33||Kisetsu Tsuge||Nagoya Univ.||The cluster formation site in the Antennae galaxies; a new close look at the major merger forming super star clusters pdf|
Session : Free discussion
You need password to access the presentation files. If you interested in the files, please contact the organizers.
Reception has been closed. We also accept participants without any talks who do not register.