What question did this study set out to answer?

To evaluate the efficiency, timescales, and physics of ram pressure stripping on the gaseous discs of spiral galaxies orbiting within rich and poor cluster environments.

October 1, 1999Monthly Notices of the Royal Astronomical SocietyOpen Access

Ram pressure stripping of spiral galaxies in clusters

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To evaluate the efficiency, timescales, and physics of ram pressure stripping on the gaseous discs of spiral galaxies orbiting within rich and poor cluster environments.
Conducted three-dimensional smoothed particle hydrodynamics (SPH) and N-body numerical simulations of disc galaxies traversing the intracluster medium.
Evaluated the analytic Gunn & Gott criterion by comparing gravitational restoring forces from disc and bulge potentials with hydrodynamic ram pressure forces under varying cluster masses and galaxy orbital inclinations.
A spiral galaxy traversing a rich cluster core (such as Coma) loses approximately 80 per cent of its diffuse gas mass, with its disc truncated to ~4 kpc over a timescale of ~10^7 yr.
Gas stripping is substantially less severe in poorer clusters and for inclined trajectories, demonstrating that ram pressure alone is insufficient to account for observed widespread star formation truncation or Sab-to-S0 galaxy transformations.

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Implication

Hydrodynamic simulation study demonstrates significant gas disc truncation in cluster galaxies, suggesting ram pressure alone cannot drive observed widespread morphological transformations.

Cite This Study

Abadi et al. (1999) studied this question.

synapsesocial.com/papers/6a1c1e6426cb5670aa9d65c8 https://doi.org/10.1046/j.1365-8711.1999.02715.x

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Implication

Hydrodynamic simulation study demonstrates significant gas disc truncation in cluster galaxies, suggesting ram pressure alone cannot drive observed widespread morphological transformations.

Ram pressure stripping of spiral galaxies in clusters

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Discussion

Implication

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Ram pressure stripping of spiral galaxies in clusters

Key Points

Discussion

Implication

Cite This Study

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