Browsing Research publications by Author "Juvela, Mika"

Now showing items 1-8 of 8

    • ALMA ACA and Nobeyama Observations of Two Orion Cores in Deuterated Molecular Lines 

      Tatematsu, Ken'Ichi; Liu, Tie; Kim, Gwanjeong; Yi, Hee Weon; Lee, Jeong Eun; Hirano, Naomi; Liu, Sheng Yuan; Ohashi, Satoshi; Sanhueza, Patricio; Francesco, James Di; Evans, Neal J.; Fuller, Gary A.; Kandori, Ryo; Choi, Minho; Kang, Miju; Feng, Siyi; Hirota, Tomoya; Sakai, Takeshi; Lu, Xing; Lu'O'Ng, Quang Nguyen; Thompson, Mark A.; Wu, Yuefang; Li, Di; Kim, Kee Tae; Wang, Ke; Ristorcelli, Isabelle; Juvela, Mika; Tóth, L. Viktor (2020-06-03)
      We mapped two molecular cloud cores in the Orion A cloud with the 7 m Array of the Atacama Compact Array (ACA) of the Atacama Large Millimeter/submillimeterArray (ALMA) and with the Nobeyama 45 m radio telescope. These ...

    • ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). I. Detection of New Hot Corinos with the ACA 

      Hsu, Shih-Ying; Liu, Sheng-Yuan; Liu, Tie; Sahu, Dipen; Hirano, Naomi; Lee, Chin-Fei; Tatematsu, Kenichi; Kim, Gwanjeong; Juvela, Mika; Sanhueza, Patricio; He, Jinhua; Johnstone, Doug; Qin, Sheng-Li; Bronfman, Leonardo J.; Chen, Huei-Ru; Dutta, Somnath; Eden, David; Jhan, Kai-Syun; Kim, Kee-Tae; Kuan, Yi-Jehng; Kwon, Woojin; Lee, Chang Won; Lee, Jeong-Eun; Moraghan, Anthony; Rawlings, Mark; Shang, Hsien; Soam, Archana; Thompson, Mark; Traficante, Alessio; Wu, Yuefang; Yang, Yao-Lun; Zhang, Qizhou (2020-07-29)
      We report the detection of four new hot corino sources, G211.47-19.27S, G208.68-19.20N1, G210.49-19.79W, and G192.12-11.10, from a survey study of Planck Galactic Cold Clumps in the Orion Molecular Cloud Complex with the ...

    • Astrochemical Properties of Planck Cold Clumps 

      Tatematsu, Ken'ichi; Liu, Tie; Ohashi, Satoshi; Sanhueza, Patricio; Nguyen-Luong, Quang; Hirota, Tomoya; Liu, Sheng-Yuan; Hirano, Naomi; Choi, Minho; Kang, Miju; Thompson, Mark; Fuller, Garry; Wu, Yuefang; Francesco, James Di; Kim, Kee-Tae; Wang, Ke; Ristorcelli, Isabelle; Juvela, Mika; Shinnaga, Hiroko; Cunningham, Maria R.; Saito, Masao; Lee, Jeong-Eun; Toth, L. Viktor; He, Jinhua; Sakai, Takeshi; Kim, Jungha; collaboration, JCMT Large Program "SCOPE"; collaboration, TRAO Key Science Program "TOP" (2017-03-01)
      We observed thirteen Planck cold clumps with the James Clerk Maxwell Telescope/SCUBA-2 and with the Nobeyama 45 m radio telescope. The N$_2$H$^+$ distribution obtained with the Nobeyama telescope is quite similar to SCUBA-2 ...

    • Cloud G074.11+00.11: a stellar cluster in formation 

      Saajasto, Mika; Harju, Jorma; Juvela, Mika; Tie, Liu; Zhang, Qizhou; Liu, Sheng-Yuan; Hirano, Naomi; Wu, Yuefang; Kim, Kee-Tae; Tatematsu, Ken'ichi; Wang, Ke; Thompson, Mark (2019-10-01)
      We present molecular line and dust continuum observations of a Planck-detected cold cloud, G074.11+00.11. The cloud consists of a system of curved filaments and a central star-forming clump. The clump is associated with ...

    • Herschel and SCUBA-2 observations of dust emission in a sample of Planck cold clumps 

      Juvela, Mika; He, Jinhua; Pattle, Katherine; Liu, Tie; Bendo, George; Eden, David J.; Feher, Orsolya; Fich, Michel; Fuller, Gary; Hirano, Naomi; Kim, Kee-Tae; Li, Di; Liu, Sheng-Yuan; Malinen, Johanna; Marshall, Douglas J.; Paradis, Deborah; Parsons, Harriet; Pelkonen, Veli-Matti; Rawlings, Mark G.; Ristorcelli, Isabelle; Samal, Manash R.; Tatematsu, Ken'ichi; Thompson, Mark; Traficante, Alessio; Wang, Ke; Ward-Thompson, Derek; Wu, Yuefang; Yi, Hee-Weon; Yoo, Hyunju (2018-04-27)
      Context. Analysis of all-sky Planck submillimetre observations and the IRAS 100 μm data has led to the detection of a population of Galactic cold clumps. The clumps can be used to study star formation and dust properties ...

    • Magnetic fields in the infrared dark cloud G34.43+0.24 

      Soam, Archana; Liu, Tie; Andersson, B-G; Lee, Chang Won; Liu, Junhao; Juvela, Mika; Li, Pak Shing; Goldsmith, Paul F.; Zhang, Qizhou; Koch, Patrick M.; Kim, Kee-Tae; Qiu, Keping; Neal, J. Evans II; collaborations, SCOPE; Thompson, Mark (2019-09-24)
      We present the B-fields mapped in IRDC G34.43+0.24 using 850\,$\mu$m polarized dust emission observed with the POL-2 instrument at JCMT. We examine the magnetic field geometries and strengths in the northern, central, and ...

    • Molecular Cloud Cores with High Deuterium Fraction : Nobeyama Single-Pointing Survey 

      Kim, Gwanjeong; Tatematsu, Kenichi; Liu, Tie; Yi, Miss Hee-Weon; He, Jinhua; Hirano, Naomi; Liu, Sheng-Yuan; Choi, Minho; Sanhueza, Patricio; Toth, L. Viktor; Evans, Neal J.; Feng, Siyi; Juvela, Mika; Kim, Kee-Tae; Vastel, Charlotte; Lee, Jeong-Eun; Nguyn-Lu'o'ng, Quang; Kang, Miju; Ristorcelli, Isabelle; Fehér, O.; Wu, Yuefang; Ohashi, Satoshi; Wang, Ke; Kandori, Ryo; Hirota, Tomoya; Sakai, Takeshi; Lu, Xing; Thompson, Mark A.; Fuller, Gary A.; Li, Di; Shinnaga, Hiroko; Kim, Jungha (2020-08-12)
      We present the results of a single-pointing survey of 207 dense cores embedded in Planck Galactic Cold Clumps distributed in five different environments ($\lambda$ Orionis, Orion A, B, Galactic plane, and high latitudes) ...

    • The TOP-SCOPE survey of Planck Galactic Cold Clumps : Survey overview and results of an exemplar source, PGCC G26.53+0.17 

      Liu, Tie; Kim, Kee-Tae; Juvela, Mika; Wang, Ke; Tatematsu, Ken'ichi; Francesco, James Di; Liu, Sheng-Yuan; Wu, Yuefang; Thompson, Mark; Fuller, Gary; Eden, David; Li, Di; Ristorcelli, I.; collaborations, TOP-SCOPE (2018-02-01)
      The low dust temperatures (<14 K) of Planck Galactic cold clumps (PGCCs) make them ideal targets to probe the initial conditions and very early phase of star formation. "TOP-SCOPE" is a joint survey program targeting ∼2000 ...