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2021 Fiscal Year Annual Research Report

The impact of galactic structure on star formation

Research Project

Project/Area Number 20K14456
Research InstitutionHokkaido University

Principal Investigator

Pettitt Alex  北海道大学, 高等教育推進機構, 助教 (40792693)

Project Period (FY) 2020-04-01 – 2022-03-31
Keywordsgalaxies / star formation / numerical simulation / interstellar medium
Outline of Annual Research Achievements

This project investigated the role of galactic structure in determining how a galaxy can form stars from its gas within. Simulations were performed of three nearby spiral galaxies and were found to be remarkably similar in their evolution, despite their different rotational rates and distribution of stars and dark matter. Some smaller differences were found though, such as how rapidly gas is depleted with radius, which will be the subject of a number of in papers (in preparation). These galaxies are the first building blocks of the larger BESPOKE (Better Extragalactic Simulation Physics on Known Examples) international collaborative project, which will explore a wider range of targets and breadth of physics. The initial conditions will also be made publicly available in the near future for the use of other researchers. Unfortunately the principal investigator moved to an institute overseas so only the first year of work out of the planned three was conducted, but they will pick up this work upon relocation with continued collaboration with researchers in Japan and overseas.

  • Research Products

    (4 results)

All 2021 Other

All Int'l Joint Research (2 results) Presentation (2 results) (of which Invited: 1 results)

  • [Int'l Joint Research] MacMaster University(カナダ)

    • Country Name
      CANADA
    • Counterpart Institution
      MacMaster University
  • [Int'l Joint Research] Ohio State University(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      Ohio State University
  • [Presentation] Influence of galactic fly-bys on the ISM and GMCs2021

    • Author(s)
      Pettitt
    • Organizer
      Triggered Star Formation 2021
    • Invited
  • [Presentation] BESPOKE galaxy samples: a new way to study the ISM and feedback in galaxy simulations2021

    • Author(s)
      Sam Benincasa, Alex Pettitt
    • Organizer
      ISM2021 Conference in Beirut

URL: 

Published: 2022-12-28  

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