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Specific Star Formation Rate Enhancement across the Galaxy Merger Sequence: Insights from Citizen Science Classifications

  • Authors: Jacob Lee, Alexandra Le Reste, Claudia Scarlata, Kameswara Bharadwaj Mantha

Jacob Lee et al 2026 Research Notes of the AAS 10 .

  • Provider: AAS Journals

Caption: Figure 1.

Log(sSFR) versus SMerg for Cosmic Disco galaxies with Pmerg ≥ 0.5. Merger stages trace galaxies from pre-interaction (SMerg = 1) to post-coalescence (SMerg = 4). We find a weak but statistically significant correlation, with linear fit shown in red and 1σ uncertainty shown as the shaded region. Median ﹩\mathrm{log}({\rm{sSFR}})﹩ for Cosmic Disco non-mergers (Pmerg < 0.5; blue dashed) and SDSS control galaxies (green dashed) are shown for comparison.

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