Browsing by Author "Chen, Hope"

Now showing items 1-4 of 4

    • First stars of the ρ Ophiuchi dark cloud 

      Pillitteri, I.; Wolk, Scott J.; Chen, Hope How-Huan; Goodman, Alyssa (EDP Sciences, 2016)
      Star formation in molecular clouds can be triggered by the dynamical action of winds from massive stars. Furthermore, X-ray and UV fluxes from massive stars can influence the life time of surrounding circumstellar disks. ...

    • The Green Bank Ammonia Survey: Dense Cores under Pressure in Orion A 

      Kirk, Helen; Friesen, Rachel K.; Pineda, Jaime E.; Rosolowsky, Erik; Offner, Stella S. R.; Matzner, Christopher D.; Myers, Philip C.; Di Francesco, James; Caselli, Paola; Alves, Felipe O.; Chacón-Tanarro, Ana; Chen, Hope How-Huan; Chen, Michael Chun-Yuan; Keown, Jared; Punanova, Anna; Seo, Young Min; Shirley, Yancy; Ginsburg, Adam; Hall, Christine; Singh, Ayushi; Arce, Héctor G.; Goodman, Alyssa; Martin, Peter; Redaelli, Elena (American Astronomical Society, 2017)
      We use data on gas temperature and velocity dispersion from the Green Bank Ammonia Survey and core masses and sizes from the James Clerk Maxwell Telescope Gould Belt Survey to estimate the virial states of dense cores ...

    • The Green Bank Ammonia Survey: First Results of NH3 Mapping of the Gould Belt 

      Friesen, Rachel K.; Pineda, Jaime E.; Rosolowsky, Erik; Alves, Felipe; Chacón-Tanarro, Ana; Chen, How-Huan How-Huan; Chen, Michael Chun-Yuan; Di Francesco, James; Keown, Jared; Kirk, Helen; Punanova, Anna; Seo, Youngmin; Shirley, Yancy; Ginsburg, Adam; Hall, Christine; Offner, Stella S. R.; Singh, Ayushi; Arce, Héctor G.; Caselli, Paola; Goodman, Alyssa; Martin, Peter G.; Matzner, Christopher; Myers, Philip C.; Redaelli, Elena; undefined, undefined; undefined, undefined (American Astronomical Society, 2017)
      We present an overview of the first data release (DR1) and first-look science from the Green Bank Ammonia Survey (GAS). GAS is a Large Program at the Green Bank Telescope to map all Gould Belt star-forming regions with ...

    • The Green Bank Ammonia Survey: Observations of Hierarchical Dense Gas Structures in Cepheus-L1251 

      Keown, Jared; Di Francesco, James; Kirk, Helen; Friesen, Rachel K.; Pineda, Jaime E.; Rosolowsky, Erik; Ginsburg, Adam; Offner, Stella S. R.; Caselli, Paola; Alves, Felipe; Chacón-Tanarro, Ana; Punanova, Anna; Redaelli, Elena; Seo, Young Min; Matzner, Christopher D.; Chen, Michael Chun-Yuan; Goodman, Alyssa; Chen, Hope How-Huan; Shirley, Yancy; Singh, Ayushi; Arce, Hector G.; Martin, Peter; Myers, Philip C. (American Astronomical Society, 2017)
      We use Green Bank Ammonia Survey observations of NH3 (1, 1) and (2, 2) emission with 32″ FWHM resolution from a ∼10 pc2 portion of the Cepheus-L1251 molecular cloud to identify hierarchical dense gas structures. Our ...