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Francisco J. Mercado

@astronomerc.bsky.social

76 followers 92 following 6 posts

NSF MPS Ascend Fellow at Pomona College | Ph.D. from UCI | Galaxy Formation & Evolution | franciscojmercado.com

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Francisco J. Mercado @astronomerc.bsky.social · 09/01/2025

We conclude that a galaxy’s relative size is set by the combined effects from it’s environment and halo mass.

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Francisco J. Mercado @astronomerc.bsky.social · 09/01/2025

Using a Random Forest regression model, we find that while galactic environment is significant in predicting a galaxy’s relative size, it’s halo mass plays a similarly important role.

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Francisco J. Mercado @astronomerc.bsky.social · 09/01/2025

Specifically, we look into how environment predicts deviations away from 3 key galaxy scaling relationships at fixed stellar mass.

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Francisco J. Mercado @astronomerc.bsky.social · 09/01/2025

We use the cosmological volume sim, FIREbox to study the effects of environment on galactic size and dark matter content.

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