ATOMS Paper III, massive star-forming regions Virtual Observatory Resource

Authors
  1. Liu H.-L.
  2. Liu T.
  3. Evans II N.J.
  4. Wang K.
  5. Garay G.
  6. Qin S.-L.
  7. Li S.,Stutz A.
  8. Goldsmith P.F.
  9. Liu S.-Y.
  10. Tej A.
  11. Zhang Q.
  12. Juvela M.
  13. Li D.,Wang J.-Z.
  14. BronfmaN L.
  15. Ren Z.
  16. Wu Y.-F.
  17. Kim K.-T.
  18. Lee C.W.,Tatematsu K.
  19. Cunningham M.R.
  20. Liu X.-C.
  21. Wu J.-W.
  22. Hirota T.
  23. Lee J.-E.,Li P.-S.
  24. Kang S.-J.
  25. Mardones D.
  26. Ristorcelli I.
  27. Zhang Y.
  28. Luo Q.-Y.,Toth L.V.
  29. Yi H.-W.
  30. Yun H.-S.
  31. Peng Y.-P.
  32. Li J.
  33. Zhu F.-Y.
  34. Shen Z.-Q.,Baug T.
  35. Dewangan L.K.
  36. Chakali E.
  37. Liu R.
  38. Xu F.-W.
  39. Wang Y.
  40. Zhang C.,Li J.
  41. Zhang C.
  42. Zhou J.
  43. Tang M.
  44. Xue Q.
  45. Issac N.
  46. Soam A.,Alvarez-Gutierrez R.H.
  47. Published by
    CDS
Abstract

We have identified 453 compact dense cores in 3 mm continuum emission maps in the ALMA Three-millimetre Observations of Massive Star-forming regions survey, and compiled three catalogues of high-mass star-forming cores. One catalogue, referred to as hyper/ultra compact (H/UC)-H II catalogue, includes 91 cores that enshroud H/UC H II regions as characterized by associated compact H40{alpha} emission. A second catalogue, referred to as pure s-cHMC, includes 31 candidate hot molecular cores (HMCs) showing rich spectra (N >= 20 lines) of complex organic molecules (COMs) and not associated with H/UC-H ii regions. The third catalogue, referred to as pure w-cHMC, includes 51 candidate HMCs with relatively low levels of COM richness and not associated with H/UC-H II regions. These three catalogues of dense cores provide an important foundation for future studies of the early stages of high-mass star formation across the Milky Way. We also find that nearly half of H/UC-H II cores are candidate HMCs. From the number counts of COM-containing and H/UC-H II cores, we suggest that the duration of high-mass protostellar cores showing chemically rich features is at least comparable to the lifetime of H/UC-H II regions. For cores in the H/UC-H II catalogue, the width of the H40{alpha} line increases as the core size decreases, suggesting that the non-thermal dynamical and/or pressure line-broadening mechanisms dominate on the smaller scales of the H/UC-H II cores.

Keywords
  1. molecular-clouds
  2. star-forming-regions
  3. h-ii-regions
  4. radio-continuum-emission
  5. radio-astronomy
  6. millimeter-astronomy
  7. photometry
  8. submillimeter-astronomy
  9. radio-spectroscopy
Bibliographic source Bibcode
2021MNRAS.505.2801L
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ivo://CDS.VizieR/J/MNRAS/505/2801
Document Object Identifer DOI
doi:10.26093/cds/vizier.75052801

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History

2024-06-10T12:05:08Z
Resource record created
2024-06-10T12:05:08Z
Created
2024-09-19T20:20:32Z
Updated

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