Browsing by Author "Lada, Charles J."

Now showing items 1-8 of 8

    • 3D shape of Orion A from Gaia DR2 

      Grossschedl, Josefa E.; Alves, Joao; Meingast, Stefan; Ackerl, Christine; Ascenso, Joana; Bouy, Herve; Burkert, Andreas; Forbrich, Jan; Fuernkranz, Verena; Goodman, Alyssa; Hacar, Alvaro; Herbst-Kiss, Gabor; Lada, Charles J.; Larreina, Irati; Leschinski, Kieran; Lombardi, Marco; Moitinho, Andre; Mortimer, Daniel; Zari, Eleonora (2018-11-14)
      We use the Gaia DR2 distances of about 700 mid-infrared selected young stellar objects in the benchmark giant molecular cloud Orion A to infer its 3D shape and orientation. We find that Orion A is not the fairly straight ...

    • The ALMA view of GMCs in NGC 300 : Physical Properties and Scaling Relations at 10 pc Resolution 

      Faesi, Christopher M.; Lada, Charles J.; Forbrich, Jan (2018-04-09)
      We have conducted a 12CO(2-1) survey of several molecular gas complexes in the vicinity of H ii regions within the spiral galaxy NGC 300 using the Atacama Large Millimeter Array (ALMA). Our observations attain a resolution ...

    • First Resolved Dust Continuum Measurements of Individual Giant Molecular Clouds in the Andromeda Galaxy 

      Forbrich, Jan; Lada, Charles J.; Viaene, Sébastien; Petitpas, Glen (2020-02-11)
      In our local Galactic neighborhood, molecular clouds are best studied using a combination of dust measurements, to determine robust masses, sizes, and internal structures of the clouds, and molecular-line observations to ...

    • The HP2 Survey - IV. The Pipe nebula : Effective dust temperatures in dense cores 

      Hasenberger, Birgit; Lombardi, Marco; Alves, João; Forbrich, Jan; Hacar, Alvaro; Lada, Charles J. (2018-12-01)
      Multi-wavelength observations in the sub-millimeter regime provide information on the distribution of both the dust column density and the effective dust temperature in molecular clouds. In this study, we created high-resolution ...

    • Simultaneous Deep Measurements of CO Isotopologues and Dust Emission in Giant Molecular Clouds in the Andromeda Galaxy 

      Viaene, Sébastien; Forbrich, Jan; Lada, Charles J.; Petitpas, Glen; Faesi, Christopher M. (2021-05-05)
      We present simultaneous measurements of emission from dust continuum at 230 GHz and the J=2-1 $^{12}$CO, $^{13}$CO and C$^{18}$O isotopologues at $\sim$ 15 pc resolution from individual Giant Molecular Clouds (GMCs) in the ...

    • Smoke in the Pipe Nebula: dust emission and grain growth in the starless core FeSt 1-457 

      Forbrich, Jan; Lada, Charles J.; Lombardi, Marco; Roman-Zuñiga, Carlos; Alves, João (2015-08-13)
      (abridged) Methods: We derive maps of submillimeter dust optical depth and effective dust temperature from Herschel data that were calibrated against Planck. After calibration, we then fit a modified blackbody to the ...

    • Some like it cold: molecular emission and effective dust temperatures of dense cores in the Pipe Nebula 

      Forbrich, Jan; Öberg, Karin; Lada, Charles J.; Lombardi, Marco; Hacar, Alvaro; Alves, João; Rathborne, Jill M. (2014-08-08)
      Aims. The Pipe Nebula is characterized by a low star-formation rate and is therefore an ideal environment to explore how initial conditions, including core characteristics, affect star-formation efficiencies. Methods. In ...

    • VISION - Vienna survey in Orion. III. Young stellar objects in Orion A 

      Großschedl, Josefa E.; Alves, João; Teixeira, Paula S.; Bouy, Hervé; Forbrich, Jan; Lada, Charles J.; Meingast, Stefan; Hacar, Álvaro; Ascenso, Joana; Ackerl, Christine; Hasenberger, Birgit; Köhler, Rainer; Kubiak, Karolina; Larreina, Irati; Linhardt, Lorenz; Lombardi, Marco; Möller, Torsten (2018-09-30)
      We extend and refine the existing young stellar object (YSO) catalogs for the Orion A molecular cloud, the closest massive star-forming region to Earth. This updated catalog is driven by the large spatial coverage (18.3 ...