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People > Research Fellow > Curriculum Vita
Radial profiles of the 12CO J = 2–1 (left panel) and 13CO J = 2–1 (right panel) emission of the carbon star CIT6 at its systemic velocity observed by the Submillimeter Array (SMA), the Submillimeter Telescope (SMT), and combined. Results from the calculations with our radiative transfer modeling package (SPARX), as overlaid by green curves, reproduced the observed profile very well.
HIGH-RESOLUTION CO OBSERVATION OF THE CARBON STAR CIT 6
Radial profiles of the 12CO J = 2–1 (left panel) and 13CO J = 2–1 (right panel) emission of the carbon star CIT6 at its systemic velocity observed by the Submillimeter Array (SMA), the Submillimeter Telescope (SMT), and combined. Results from the calculations with our radiative transfer modeling package (SPARX), as overlaid by green curves, reproduced the observed profile very well.
HIGH-RESOLUTION CO OBSERVATION OF THE CARBON STAR CIT 6
Three extremely young low-mass protostars, B1-bN, B1-bS, and B1-c, observed with the ALMA at a resolution of ~0.2" (= 47 au). The upper panels show the images of C17O 2-1 emission, the lower panels show the methanol images (color) overlaid on the 1.3 mm continuum images (white contours).
ALMA revealed the earliest stage of protostellar evolution
Figure 1: ALMA composite image of HH 212, showing a pseudo-disk (green) and a Keplerian disk (bright green) in dust continuum, and a bipolar jet in HCO+ gas (red). (Lee et al. 2014)
ALMA Revealing the Pseudo-disk, Keplerian Rotating disk, and Jet in the Very Young Protostellar System HH 212
Two submm sources in the B1-b molecular cloud core. (Left) Thermal dust emission at 1.1 mm observed with the SMA (white contours) on top of the mid-IR image taken with the Spitzer space telescope (color image). (Right) N2D+ emission line observed with the SMA and SMT. (Huang & Hirano 2013, ApJ, 766, 131)
Two submm sources in the B1-b molecular cloud core.
The SiO J=8-7 and CO J=3-2 images of the jet driven by the class 0 protostar, L1448C(N), observed with the SMA at a resolution of ~0.5". The blue and red are the approaching and receding parts of the jet, the green is the 350 GHz continuum emission, which indicates the position of the protostar.
Sub-arcsecond images of the protostellar jet from L1448C(N)
Distributions of the high velocity SiO (left panel) and CO (right) emission. The velocity ranges are ±51–70km s with respect to the systemic velocity. Green cross in each panel denotes the position of the continuum peak of L1448C(N).
Extreme Active Molecular Jets in L1448C
Left - HST (optical and infrared) images of NGC 7027. Magenta is molecular hydrogen (H2) line emission. White is H-alpha (nebular line). Courtesy HSTScI. Right - False color-scale image of HCO+(3-2) emission (at the systemic velocity) that is moving sideways. Red and Blue contours indicate HCO+(3-2) that are moving away from us and moving toward us, respectively. These horizontal components correspond to the equatorial ring of H2 emission seen in magenta in the left image. The white contours correspond to the magenta image of H2 emission in the left figure.
Detection of Multiple Bipolar Flows in NGC 7027 with SMA
The HH211 molecular jet imaged with the SMA at 0.3” resolution. The CO, SiO, SO, and 0.85 mm continuum are red, green, blue, and orange (contours), respectively .
The Reflection-Symmetric Wiggle of the Young Protostellar Jet HH211
The HH211 outflow imaged in the SiO(5-4) line at 217 GHz and SiO(8-7) line at 347 GHz with the SMA. The upper panel shows the distribution of the blueshifted and redshifted SiO(5-4) emission (blue and red contours respectively) superposed on the near-IR H
The HH211 outflow imaged in the SiO(5-4) line at 217 GHz and SiO(8-7) line at 347 GHz with the SMA
The HH211 outflow. Left: The H2 emission observed with the Very Large Telescope. Right: The approaching and receding SiO emission (blue and red contours, respectively) observed with the SMA superposed on the H2 image (Hirano et al. 2006, ApJ, 636, L141).
The HH211 outflow
Hirano, Naomi
Research Fellow
photo of Hirano, Naomi
Office: ASMAB 1321
TEL: +886-2-2366-5448
FAX: +886-2-2367-7849
Email: hirano_replace2@_asiaa.sinica.edu.tw

Education and Positions

  • Research Fellow, ASIAA (2011~present)
  • Associate Research Fellow, ASIAA (2006~2011)
  • Adjunct Associate professor, National Taiwan Normal University (2005~2007)
  • Associate Research Astronomer, ASIAA (2001~2006)
  • Research Associate, Hitotsubashi University (1991~2000)
  • Postdoctoral Fellow of Japan Society for the Promotion of Science (1989~1991)
  • Postdoctoral Fellow, Nobeyama Radio Observatory (1988~1989)
  • Ph.D., Astronomy, Tohoku University (1987)
  • M.S., Astronomy, Tohoku University (1984)

Research Interests

"How stars like our sun are formed?" -- this is one of the most fundamental problems in astronomy. Since stars are formed deeply inside of the interstellar molecular clouds, we need to look into the dusty cocoons that are obscuring the light from newly-born stars. Radio eyes such as "Atacama Large Millimeter/submillimeter Array (ALMA)" and “Submillimeter Array (SMA)” help us to study what is going on inside of the cocoons. Using the radio eyes, I am studying the structure and physical condition in the close vicinity of the newly-born stars. I am especially interested in the earliest stage of star formation, and looking for a "first hydrostatic core", which is the object formed at the beginning of the star formation process.

Journal Papers affiliated with ASIAA

  1. Dutta S; Lee C-F; Johnstone D; Lee J-E; Hirano N; Di Francesco J; Moraghan A; Liu T; Sahu D; Liu S-Y; Tatematsu KI; Goldsmith PF; Lee CW; Li S; Eden D; Juvela M; Bronfman L; Hsu S-Y; Kim K-T; Kwon W; Sanhueza P; Liu X; López-Vázquez JA; Luo Q; Yi H-W, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Molecular Jets and Episodic Accretion in Protostars" , AJ: 167(2), id.72 (68 pp), Feb, 2024 [SCI] ( ADS | Fulltext )
  2. Gu Q-L; Liu T; Li PS; Shen Z-Q; Liu X; Liu J; Lu X; Montillaud J; Jiao S; Juvela M; Rawlings MG; Zhang Q; Koch P; Ristorcelli I; Carriere J-S; Eden D; Ren Z; Tatematsu KI; Hirano N; Luo Q-Y; Mai X; Issac N, "The Magnetic Field in the Colliding Filaments G202.3+2.5" , ApJ: 963(2), id.126 (15pp), Mar, 2024 [SCI] ( ADS | Fulltext )
  3. Hirano N; Sahu D; Liu S-Y; Liu T; Tatematsu KI; Dutta S; Li S; Lee C-F; Li PS; Hsu S-Y; Lin S-J; Johnstone D; Bronfman L; Chen H-RV; Eden DJ; Kuan Y-J; Kwon W; Lee CW; Liu H-L; Rawlings MG; Ristorcelli I; Traficante A, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Discovery of an Extremely Dense and Compact Object Embedded in the Prestellar Core G208.68-19.92-N2" , ApJ: 961(1), id.123 (23 pp), Jan, 2024 [SCI] ( ADS | Fulltext )
  4. Xu F; Wang K; Liu T; Eden D; Liu X; Juvela M; He J; Johnstone D; Goldsmith P; Garay G; Wu Y; Soam A; Traficante A; Ristorcelli I; Falgarone E; Chen H-RV; Hirano N; Doi Y; Kwon W; White GJ; Whitworth A; Sanhueza P; Rawlings MG; Alina D; Ren Z; Lee CW; Tatematsu KI; Zhang C-P; Zhou J; Lai S-P; Ward-Thompson D; Liu S-Y; Gu Q; Chakali E; Zhu L; Mardones D; Tóth LV, "On the Scarcity of Dense Cores (n > 105 cm‑3) in High-latitude Planck Galactic Cold Clumps" , ApJ: 963(1), L9 (11pp), Mar, 2024 [SCI] ( ADS | Fulltext )
  5. Duan H-Y; Lai S-P; Hirano N; Thieme TJ, "Modeling Two First Hydrostatic Core Candidates Barnard 1b-N and 1b-S" , ApJ: 947(2), id.48 (17pp), April, 2023 [SCI] ( ADS | Fulltext )
  6. Hsu S-Y; Liu S-Y; Johnstone D; Liu T; Bronfman L; Chen H-RV; Dutta S; Eden DJ; Evans NJ, Ii; Hirano N; Juvela M; Kuan Y-J; Kwon W; Lee C-F; Lee CW; Lee J-E; Li S; Liu C-F; Liu X; Luo Q; Qin S-L; Rawlings MG; Sahu D; Sanhueza P; Shang H; Tatematsu K; Yang Y-L, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): The Warm-Envelope Origin of Hot Corinos" , ApJ: 956(2), id.120 (23pp), Oct, 2023 [SCI] ( ADS | Fulltext )
  7. Luo Q-Y; Liu T; Lee AT; Offner SSR; Di Francesco J; Johnstone D; Juvela M; Goldsmith PF; Qin S-L; Mai X; Liu X-C; Sanhueza P; Xu F-W; Tatematsu KI; Dutta S; Chen H-RV; Li S; Yang A; Liu S-Y; Lee C-F; Hirano N; Lee CW; Sahu D; Shang H; Hsu S-Y; Bronfman L; Kwon W; Rawlings MG; Eden D; Lu X; Gu Q-L; Ren Z; Ward-Thompson D; Shen Z-Q, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): A Forming Quadruple System with Continuum "Ribbons" and Intricate Outflows" , ApJL: 952(1), L2 (10 pp), July, 2023 [SCI] ( ADS | Fulltext )
  8. Sahu D; Liu S-Y; Johnstone D; Liu T; Evans NJ, Ii; Hirano N; Tatematsu KI; Di Francesco J; Lee C-F; Kim K-T; Dutta S; Hsu S-Y; Li S; Luo Q-Y; Sanhueza P; Shang H; Traficante A; Juvela M; Lee CW; Eden DJ; Goldsmith PF; Bronfman L; Kwon W; Lee J-E; Kuan Y-J; Ristorcelli I, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Density Structure of Centrally Concentrated Prestellar Cores from Multiscale Observations" , ApJ: 945 (2), id.156 (15pp), March, 2023 [SCI] ( ADS | Fulltext )
  9. Yen H-W; Koch P; Lee C-F; Hirano N; Ohashi N; Sai J (Choi I); Takakuwa S; Tang Y-W; Tatematsu KI; Zhao B, "Increasing mass-to-flux ratio from the dense core to the protostellar envelope around the Class 0 protostar HH 211" , ApJ: 942(1), id.32 (20 pp), Jan, 2023 [SCI] ( ADS | Fulltext )
  10. Dutta S; Lee C-F; Hirano N; Liu T; Johnstone D; Liu S-Y; Tatematsu K; Goldsmith PF; Sahu D; Evans NJ; Sanhueza P; Kwon W; Qin S-L; Ranjan Samal M; Zhang Q; Kim K-T; Shang H; Lee CW; Moraghan A; Jhan K-S; Li S; Lee J-E; Traficante A; Juvela M; Bronfman L; Eden D; Soam A; He J; Liu H-L; Kuan Y-J; Pelkonen V-M; Luo Q; Yi H-W; Hsu S-Y, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Evidence for a Molecular Jet Launched at an Unprecedented Early Phase of Protostellar evolution" , ApJ: 931(2), id.130 (13pp), June, 2022 [SCI] ( ADS | Fulltext )
  11. Dutta S; Lee C-F; Johnstone D; Liu T; Hirano N; Liu S-Y; Lee J-E; Shang H; Tatematsu KI; Kim K-T; Sahu D; Sanhueza P; Di Francesco J; Jhan K-S; Lee CW; Kwon W; Li S; Bronfman L; Liu H-L; Traficante A; Kuan Y-J; Hsu S-Y; Moraghan A; Liu C-F; Eden D; Soam A; Luo Q; ALMASOP Team, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Detection of a Dense SiO Jet in the Evolved Protostellar Phase" , ApJ: 925(1), id.11 (10pp), Jan, 2022 [SCI] ( ADS | Fulltext )
  12. Feher O; Toth LV; Kraus A; Bogner R; Kim G; Liu T; Tatematsu K; Toth V; Eden DJ; Hirano N; Juvela M; Kim KT; Li D; Liu SY; Wu YF, "Ammonia Emission in Various Star-forming Environments: A Pilot Study of Planck Galactic Cold Clumps" , ApJS: 258(1), id.17 (17 pp), Jan, 2022 [SCI] ( ADS | Fulltext )
  13. Hirota T; Wolak P; Hunter TR; Brogan CL; Bartkiewicz A; Durjasz M; Kobak A; Olech M; Szymczak M; Burns RA; Aberfelds A; Baek G; Brand J; Breen S; Byun D-Y; Caratti O Garatti A; Chen X; Chibueze JO; Cyganowski C; Eislöffel J; Ellingsen S; Hirano N; Hu B; Kang J-H; Kim J-S; Kim J; Kim K-T; Kim MK; Kramer B; Lee J-E; Linz H; Liu T; Macleod G; Mccarthy TP; Menten K; Motogi K; Oh C-S; Orosz G; Sobolev AM; Stecklum B; Sugiyama K; Sunada K; Uscanga L; Van Den Heever F; Volvach AE; Volvach LN; Wu YW; Yonekura Y, "Millimeter methanol emission in the high-mass young stellar object G24.33+0.14" , PASJ: 74(5), 1234-1262, Oct, 2022 [SCI] ( ADS | Fulltext )
  14. Hsu S-Y; Liu S-Y; Liu T; Sahu D; Lee C-F; Tatematsu K; Kim K-T; Hirano N; Yang Y-L; Johnstone D; Liu H; Juvela M; Bronfman L; Chen H-RV; Dutta S; Eden DJ; Jhan K-S; Kuan Y-J; Lee CW; Lee J-E; Li S; Liu C-F; Qin S-L; Sanhueza P; Shang H; Soam A; Traficante A; Zhou J, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): A Hot Corino Survey toward Protostellar Cores in the Orion Cloud" , ApJ: 927(2), id.218 (27pp), March, 2022 [SCI] ( ADS | Fulltext )
  15. Jhan K-S; Lee C-F; Johnstone D; Liu T; Liu S-Y; Hirano N; Tatematsu KI; Dutta S; Moraghan A; Shang H; Lee J-E; Li S; Liu C-F; Hsu S-Y; Kwon W; Sahu D; Liu X-C; Kim K-T; Luo Q; Qin S-L; Sanhueza P; Bronfman L; Qizhou Z; Eden D; Traficante A; Lee CW; Almasop T, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Deriving Inclination Angle and Velocity of the Protostellar Jets from Their SiO Knots" , ApJL: 931(1), id.L5 (9pp), May, 2022 [SCI] ( ADS | Fulltext )
  16. Lee C-F; Li Z-Y; Shang H; Hirano N, "Magnetocentrifugal Origin for Protostellar Jets Validated through Detection of Radial Flow at the Jet Base" , ApJ: 927(2), id.L27 (8pp), March, 2022 [SCI] ( ADS | Fulltext )
  17. Luo Q; Liu T; Tatematsu K; Liu S-Y; Li PS; Di Francesco J; Johnstone D; Goldsmith PF; Dutta S; Hirano N; Lee C; Li D; Kim K; Lee CW; Lee J; Liu X; Juvela M; He J; Qin S; Liu H; Eden D; Kwon W; Sahu D; Li S; Xu F; Zhang S; Hsu S-Y; Bronfman L; Sanhueza P; Pelkonen V; Zhou J; Liu R; Gu Q; Wu Y; Mai X; Falgarone E; Shen Z, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): How do dense core properties affect the multiplicity of protostars?" , ApJ: 931(2), id.158 (22pp), June, 2022 [SCI] ( ADS | Fulltext )
  18. Scicluna P; Kemper F; Mcdonald I; Srinivasan S; Trejo A; Wallström SHJ; Wouterloot JGA; Cami J; Greaves J; He J; Hoai DT; Kim H; Jones OC; Shinnaga H; Clark CJR; Dharmawardena T; Holland W; Imai H; Van Loon JT; Menten KM; Wesson R; Chawner H; Feng S; Goldman S; Liu FC; Macisaac H; Tang J; Zeegers S; Amada K; Antoniou V; Bemis A; Boyer ML; Chapman S; Chen X; Cho S-H; Cui L; Dell'agli F; Friberg P; Fukaya S; Gomez H; Gong Y; Hadjara M; Haswell C; Hirano N; Hony S; Izumiura H; Jeste M; Jiang X; Kaminski T; Keaveney N; Kim J; Kraemer KE; Kuan Y-J; Lagadec E; Lee CF; Li D; Liu S-Y; Liu T; De Looze I; Lykou F; Maraston C; Marshall JP; Matsuura M; Min C; Otsuka M; Oyadomari M; Parsons H; Patel NA; Peeters E; Pham TA; Qiu J; Randall S; Rau G; Redman MP; Richards AMS; Serjeant S; Shi C; Sloan GC; Smith MWL; Suh K-W; Toalá JA; Uttenthaler S; Ventura P; Wang B; Yamamura I; Yang T; Yun Y; Zhang F; Zhang Y; Zhao G; Zhu M; Zijlstra AA, "The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope" , MNRAS: 512(1), 1091-1110, May, 2022 [SCI] ( ADS | Fulltext )
  19. Shimoikura T; Dobashi K; Hirano N; Nakamura F; Hirota T; Matsumoto T; Taniguchi K; Shimajiri Y, "Cluster Formation in GGD 12-15: Infall Motion with Rotation of the Natal Clump" , ApJ: 928(1), id.76 (16pp), March, 2022 [SCI] ( ADS | Fulltext )
  20. Tatematsu KI; Yeh Y-T; Hirano N; Liu S-Y; Liu T; Dutta S; Sahu D; Evans NJ, Ii; Juvela M; Yi H-W; Lee J-E; Sanhueza P; Li S; Eden D; Kim G; Lee C-F; Wu Y; Kim K-T; T'oth LV; Choi M; Kang M; Thompson MA; Fuller GA; Di L; Wang K; Sakai T; Kandori R; Hsu S-Y; Chiong C-C; JCMT Large Program SCOPE collaboration; ALMASOP collaboration, "Nobeyama Survey of Inward Motions toward Cores in Orion Identified by SCUBA-2" , ApJ: 931(1), id.33 (24pp), May, 2022 [SCI] ( ADS | Fulltext )
  21. Van 'T Hoff MLR; Harsono D; Van Gelder ML; Hsieh T-H; Tobin JJ; Jensen SS; Hirano N; Jørgensen JK; Bergin EA; Van Dishoeck EF, "Imaging the Water Snowline around Protostars with Water and HCO+ Isotopologues" , ApJ: 924(1), id.5 (20pp), Jan, 2022 [SCI] ( ADS | Fulltext )
  22. Aso Y; Kwon W; Hirano N; Ching T-C; Lai S-P; Li Z-Y; Rao R, "Multi-scale Dust Polarization and Spiral-like Stokes-I Residual in the Class I Protostellar System TMC-1A" , ApJ: 920(2), id.71 (16pp), Oct, 2021 [SCI] ( ADS | Fulltext )
  23. Chuang C-Y; Aso Y ; Hirano N ; Hirano S; Machida MN, "ALMA Observations toward the S-shaped Outflow and the Envelope around NGC1333 IRAS 4A2" , ApJ: 916(2), id.82 (pp), Jul, 2021 [SCI] ( ADS | Fulltext )
  24. Hara C; Kawabe R; Nakamura F; Hirano N; Takakuwa S; Shimajiri Y; Kamazaki T; Di Francesco J; Machida MN; Tamura M; Saigo K; Matsumoto T; Tomida K, "Misaligned Twin Molecular Outflows from the Class 0 Protostellar Binary System VLA 1623A Unveiled by ALMA" , ApJ: 912(1), id.34 (24pp), May, 2021 [SCI] ( ADS | Fulltext )
  25. Sahu D; Liu S-Y; Liu T; Evans NJ, Ii; Hirano N; Tatematsu KI; Lee C-F; Kim K-T; Dutta S; Alina D; Bronfman L; Cunningham M; Eden DJ; Garay G; Goldsmith PF; He J; Hsu S-Y; Jhan K-S; Johnstone D; Juvela M; Kim G; Kuan Y-J; Kwon W; Lee CW; Lee J-E; Li D; Li PS; Li S; Luo Q-Y; Montillaud J; Moraghan A; Pelkonen V-M; Qin S-L; Ristorcelli I; Sanhueza P; Shang H; Shen Z-Q; Soam A; Wu Y; Zhang Q; Zhou J, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Detection of Extremely High-density Compact Structure of Prestellar Cores and Multiple Substructures Within" , ApJL: 907(1), L15 (9pp), Jan, 2021 [SCI] ( ADS | Fulltext )
  26. Stecklum B; Wolf V; Linz H; Caratti O Garatti A; Schmidl S; Klose S; Eislöffel J; Fischer C; Brogan C; Burns RA; Bayandina O; Cyganowski C; Gurwell M; Hunter T; Hirano N; Kim KT; Macleod G; Menten KM; Olech M; Orosz G; Sobolev A; Sridharan TK; Surcis G; Sugiyama K; Van Der Walt J; Volvach A; Yonekura Y, "Infrared observations of the flaring maser source G358.93-0.03. SOFIA confirms an accretion burst from a massive young stellar object" , A&A: 646, id.A161 (21pp), Feb, 2021 [SCI] ( ADS | Fulltext )
  27. Tatematsu KI; Kim G; Liu T; Evans NJ, Ii; Yi H-W; Lee J-E; Wu Y; Hirano N; Liu S-Y; Dutta S; Sahu D; Sanhueza P; Kim K-T; Juvela M; Tóth LV; Fehér O; He J; Ge J; Feng S; Choi M; Kang M; Thompson MA; Fuller GA; Li D; Ristorcelli I; Wang K; Di Francesco J; Eden D; Ohashi S; Kandori R; Vastel C; Hirota T; Sakai T; Lu X; Nguyên Lu'o'ng Q; Shinnaga H; Kim J; Scope Collaboration; JCMT Large Program, "Molecular Cloud Cores with High Deuterium Fractions: Nobeyama Mapping Survey" , ApJS: 256(2), id.25 (26pp), Oct, 2021 [SCI] ( ADS | Fulltext )
  28. Yoshida T; Hsieh T-H; Hirano N; Aso Y, "Multi-epoch Submillimeter Array Observations of the L1448C(N) Protostellar SiO Jet" , ApJ: 906(2), 112 (12pp.), Jan, 2021 [SCI] ( ADS | Fulltext )
  29. Dutta S; Lee CF; Liu T; Hirano N; Liu SY; ... ; Shang H; Sahu D;...; Moraghan A; Jhan KS; Hsu SY;...; Kuan YJ; et al., "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). II. Survey Overview: A First Look at 1.3 mm Continuum Maps and Molecular Outflows" , ApJS: 251(2), id.20 (35pp.), Dec, 2020 [SCI] ( ADS | Fulltext )
  30. Hsu SY; Liu SY; ...; Sahu D; Hirano N; Lee CF; ...; Dutta S; ...; Jhan K-S; ...; Kuan YJ; ...; Moraghan A; ...; Shang H, "ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). I. Detection of New Hot Corinos with the ACA" , ApJ: 898(2), id.107 (37pp.), Aug, 2020 [SCI] ( ADS | Fulltext )
  31. Kim G; Tatematsu KI; Liu T; ...; Hirano N; Liu S-Y; ...; Feng S; et al., "Molecular Cloud Cores with a High Deuterium Fraction: Nobeyama Single-pointing Survey" , ApJ: 249(2), id.33 (55pp.), Aug, 2020 [SCI] ( ADS | Fulltext )
  32. Tatematsu KI; Liu T; Kim G; ...; Hirano N; Liu S-Y; et al., "ALMA ACA and Nobeyama Observations of Two Orion Cores in Deuterated Molecular Lines" , ApJ: 895(2), id.119 (31pp.), Jun, 2020 [SCI] ( ADS | Fulltext )
  33. Teng Y-H; Hirano N, "Physical Conditions and Kinematics of the Filamentary Structure in Orion Molecular Cloud 1" , ApJ: 893(1), id. 63 (15 pp.), Apr, 2020 [SCI] ( ADS | Fulltext )
  34. Aso Y; Hirano N; ...; Ohashi N; ...; Takakuwa S; Yen H-W; et al., "Protostellar Evolution in Serpens Main: Possible Origin of Disk-size Diversity" , ApJ: 877(2), id. 209 (14 pp.), Dec, 2019 [SCI] ( ADS | Fulltext )
  35. Brogan CL; Hunter TR; Towner APM; ...; Hirano N; et al., "Sub-arcsecond (Sub)millimeter Imaging of the Massive Protocluster G358.93-0.03: Discovery of 14 New Methanol Maser Lines Associated with a Hot Core" , ApJL: 881(2), id. L39 (9 pp.), Aug, 2019 [SCI] ( ADS | Fulltext )
  36. Cazzoletti P; Manara CF; Liu HB; ...; Hirano N; ...; Takami M; et al., "ALMA survey of Class II protoplanetary disks in Corona Australis: a young region with low disk masses" , A&A: 626, id. A11 (18 pp.), Jun, 2019 [SCI] ( ADS | Fulltext )
  37. Eden DJ; Liu T; Kim K-T; ...; Liu S-Y; ...; Hirano N; ...; Koch PM; ...; Chu YH; ...; Lai SP; Lee CF; ...; Morata O; ...; Pech G; ...; Shang H; ...; Tang YW; et al., "SCOPE: SCUBA-2 Continuum Observations of Pre-protostellar Evolution - survey description and compact source catalogue" , MNRAS: 485(2), 2895-2908, May, 2019 [SCI] ( ADS | Fulltext )
  38. Hsieh T-H; Hirano N; Belloche A; Lee C-F; Aso Y; Lai S-P, "ALMA Observations of the Protostellar Disk around the VeLLO IRAS 16253-2429" , ApJ: 871(1), id. 100 (11 pp.), Jan, 2019 [SCI] ( ADS | Fulltext )
  39. Hsieh T-H; Murillo NM; Belloche A; Hirano N; ...; Lai S-P, "Chronology of Episodic Accretion in Protostars—An ALMA Survey of the CO and H2O Snowlines" , ApJ: 884(2), id. 149 (21 pp.), Oct, 2019 [SCI] ( ADS | Fulltext )
  40. Juarez C; Liu HB; Girart JM; ...; Hirano N; et al., "Extreme fragmentation and complex kinematics at the center of the L1287 cloud" , A&A: 621, id. A140 (11 pp.), Jan, 2019 [SCI] ( ADS | Fulltext )
  41. Kamazaki T; Nakamura F; Kawabe R; ...; Takakuwa S; Hirano N; et al., "ALMA Observations of the ρ Ophiuchus B2 Region. I. Molecular Outflows and Their Driving Sources" , ApJ: 871(1), id. 86 (20 pp.), Jan, 2019 [SCI] ( ADS | Fulltext )
  42. Lee C-F; Kwon W; Jhan K-S; Hirano N; ...; SP Lai; ...; Rao R; Ho PTP, "A Pseudodisk Threaded with a Toroidal and Pinched Poloidal Magnetic Field Morphology in the HH 211 Protostellar System" , ApJ: 879(2), id. 101 (12 pp.), Jul, 2019 [SCI] ( ADS | Fulltext )
  43. Saajasto M; Harju J; Juvela M;...; Liu S-Y; Hirano N; et al., "Cloud G074.11+00.11: a stellar cluster in formation" , A&A: 630, id. A69 (17 pp.), Oct, 2019 [SCI] ( ADS | Fulltext )
  44. Sahu D; Liu S-Y; Sue Y-N; ...; Lee CF; Hirano N; Takakuwa S, "Implications of a Hot Atmosphere/Corino from ALMA Observations toward NGC 1333 IRAS 4A1" , ApJ: 872(2), id. 196 (14pp), Feb, 2019 [SCI] ( ADS | Fulltext )
  45. Su Y-N; Liu S-Y; Li Z-Y; Lee C-F; Hirano N; Takakuwa S; Hsieh I-T, "The Infall Motion in the Low-mass Protostellar Binary NGC 1333 IRAS 4A1/4A2" , ApJ: 885(2), id. 98 (16 pp.), Nov, 2019 [SCI] ( ADS | Fulltext )
  46. Takami M; Chen T-S; Liu HB; Hirano N; ...; Hsieh T-H; Karr Jl; Dong R; Trejo A; et al., "An ALMA Study of the FU Ori─type Object V900 Mon: Implications for the Progenitor" , ApJ: 884(2), id. 146 (16 pp.), Oct, 2019 [SCI] ( ADS | Fulltext )
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