Browsing by Author "Lada, Charles J."

Now showing items 1-9 of 9

    • 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 ...

    • The Molecular Clouds of M31 

      Lada, Charles J.; Forbrich, Jan; Petitpas, Glen; Viaene, Sebastien (2024-05-08)
      Deep interferometric observations of CO and dust continuum emission are obtained with the Submillimeter Array at 230 GHz to investigate the physical nature of the giant molecular cloud (GMC) population in the Andromeda ...

    • 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 ...