Galaxy And Mass Assembly (GAMA): The effect of close interactions on star formation in galaxies
Monthly Notices of the Royal Astronomical Society, ISSN: 1365-2966, Vol: 452, Issue: 1, Page: 616-636
2015
- 86Citations
- 43Captures
- 4Mentions
Metric Options: CountsSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Most Recent News
What happens when cosmic giants meet galactic dwarfs?
(Press-News.org) When two different sized galaxies smash together, the larger galaxy stops the smaller one making new stars, according to a study of more than
Article Description
The modification of star formation (SF) in galaxy interactions is a complex process, with SF observed to be both enhanced in major mergers and suppressed in minor pair interactions. Such changes likely to arise on short time-scales and be directly related to the galaxy-galaxy interaction time. Here we investigate the link between dynamical phase and direct measures of SF on different time-scales for pair galaxies, targeting numerous star- formation rate (SFR) indicators and comparing to pair separation, individual galaxy mass and pair mass ratio. We split our sample into the higher (primary) and lower (secondary) mass galaxies in each pair and find that SF is indeed enhanced in all primary galaxies but suppressed in secondaries of minor mergers. We find that changes in SF of primaries are consistent in both major and minor mergers, suggesting that SF in the more massive galaxy is agnostic to pair mass ratio. We also find that SF is enhanced/suppressed more strongly for short-duration SFR indicators (e.g. Ha), highlighting recent changes to SF in these galaxies, which are likely to be induced by the interaction. We propose a scenario where the lower mass galaxy has its SF suppressed by gas heating or stripping, while the higher mass galaxy has its SF enhanced, potentially by tidal gas turbulence and shocks. This is consistent with the seemingly contradictory observations for both SF suppression and enhancement in close pairs.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84940056308&origin=inward; http://dx.doi.org/10.1093/mnras/stv1241; https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stv1241; http://academic.oup.com/mnras/article-pdf/452/1/616/4908610/stv1241.pdf; https://dx.doi.org/10.1093/mnras/stv1241; https://academic.oup.com/mnras/article/452/1/616/1748364; https://api.research-repository.uwa.edu.au/files/10015357/616.full.pdf; https://research-repository.uwa.edu.au/en/publications/galaxy-and-mass-assembly-gama-the-effect-of-close-interactions-on-star-formation-in-galaxies(b14a0b05-4c38-4f7e-baa4-b636146ceb4b).html; http://api.research-repository.uwa.edu.au/files/10015357/616.full.pdf; https://research-repository.uwa.edu.au/en/publications/galaxy-and-mass-assembly-gama-the-effect-of-close-interactions-on; http://mnras.oxfordjournals.org/lookup/doi/10.1093/mnras/stv1241; https://academic.oup.com/mnras/article-pdf/452/1/616/4908610/stv1241.pdf; http://research-repository.uwa.edu.au/en/publications/galaxy-and-mass-assembly-gama-the-effect-of-close-interactions-on-star-formation-in-galaxies(b14a0b05-4c38-4f7e-baa4-b636146ceb4b).html; https://research-repository.uwa.edu.au/en/publications/b14a0b05-4c38-4f7e-baa4-b636146ceb4b; http://mnras.oxfordjournals.org/content/452/1/616
Oxford University Press (OUP)
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know