Ram Pressure Stripping of the Virgo Spiral NGC 4569 (M90)

Details Ram Pressure Stripping of the Virgo Spiral NGC 4569 (M90) Ram Pressure Stripping of the Virgo Spiral NGC 4569 (M90)

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1815k&link_type=abstract

Chandra Proposal ID #06610973

Computer Science

Chandra Proposal Id #06610973

Scientific paper

We propose Chandra ACIS-S observations of the Virgo cluster spiral NGC 4569, which shows strong evidence for an ongoing ICM-ISM interaction. It has an anomalous extraplanar arm of HII regions which is gas stripped from the disk, and a diffuse H-alpha and x-ray halo nebulosity which is likely a starburst outflow bubble disrupted by ICM pressure. Point sources from the galaxy disk and background can be subtracted out, allowing us to map the diffuse halo gas and measure its spectrum. The pressure of the halo gas will be compared with the ram pressure needed to strip HI from the disk, allowing an estimate of the time since peak ram pressure. The morphologies of the outflow regions on the 2 sides of the disk will constrain how the ICM wind penetrates and flows around spiral galaxies.

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