☆ 4.6 Article

DustPedia: the relationships between stars, gas, and dust for galaxies residing in different environments

ASTRONOMY & ASTROPHYSICS (2019)

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Journal

ASTRONOMY & ASTROPHYSICS
Volume 626, Issue -, Pages -

Publisher

EDP SCIENCES S A
DOI: 10.1051/0004-6361/201935547

Keywords

galaxies: clusters: individual: Virgo; Galaxy: general; dust, extinction

Categories

Astronomy & Astrophysics

Funding

  1. European Union [606847]
  2. Alfred P. Sloan Foundation
  3. U.S. Department of Energy Office of Science
  4. Center for High-Performance Computing at the University of Utah
  5. Brazilian Participation Group
  6. Carnegie Institution for Science
  7. Carnegie Mellon University
  8. Chilean Participation Group
  9. French Participation Group
  10. Harvard-Smithsonian Center for Astrophysics
  11. Instituto de Astrofisica de Canarias
  12. Johns Hopkins University
  13. Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo
  14. Lawrence Berkeley National Laboratory
  15. Leibniz Institut fur Astrophysik Potsdam (AIP)
  16. Max-Planck-Institut fur Astronomie (MPIA Heidelberg)
  17. Max-Planck-Institut fur Astrophysik (MPA Garching)
  18. Max-Planck-Institut fur Extraterrestrische Physik (MPE)
  19. National Astronomical Observatories of China
  20. New Mexico State University
  21. New York University
  22. University of Notre Dame
  23. Observatario Nacional/MCTI
  24. Ohio State University
  25. Pennsylvania State University
  26. Shanghai Astronomical Observatory
  27. United Kingdom Participation Group
  28. Universidad Nacional Autonoma de Mexico
  29. University of Arizona
  30. University of Colorado Boulder
  31. University of Oxford
  32. University of Portsmouth
  33. University of Utah
  34. University of Virginia
  35. University of Washington
  36. University of Wisconsin
  37. Vanderbilt University
  38. Yale University
  39. BMVIT (Austria)
  40. ESA-PRODEX (Belgium)
  41. CEA/CNES (France)
  42. DLR (Germany)
  43. ASI/INAF (Italy)
  44. CICYT/MCYT (Spain)
  45. CSA (Canada)
  46. NAOC (China)
  47. CEA (France)
  48. CNES (France)
  49. CNRS (France)
  50. ASI (Italy)
  51. MCINN (Spain)
  52. SNSB (Sweden)
  53. STFC (UK)
  54. UKSA (UK)
  55. NASA (USA)
  56. National Aeronautics and Space Administration

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We use a sub-set of the DustPedia galaxy sample (461 galaxies) to investigate the effect the environment has had on galaxies. We consider Virgo cluster and field samples and also assign a density contrast parameter to each galaxy, as defined by the local density of SDSS galaxies. We consider their chemical evolution (using M-Dust/M-Bayon and M-Gas/M-Baryon), their specific star formation rate (SFR/M-Stars), star formation efficiency (SFR/M-Gas), stars-to-dust mass ratio (M (Stars)/M-Dust), gas-to-dust mass ratio ( M-Gas/M-Dust) and the relationship between star formation rate per unit mass of dust and dust temperature (SFR/M-Dust and T-Dust). Late type galaxies (later than Sc) in all of the environments can be modelled using simple closed box chemical evolution and a simple star formation history (SFR(t) proportional to t exp -t/tau). For earlier type galaxies the physical mechanisms that give rise to their properties are clearly much more varied and require a more complicated model (mergers, gas in or outflow). However, we find little or no difference in the properties of galaxies of the same morphological type within the cluster, field or with different density contrasts. It appears that it is morphology, how and whenever this is laid down, and consistent internal physical processes that primarily determine the derived properties of galaxies in the DustPedia sample and not processes related to differences in the local environment.

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