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August 19, 2025Monthly Notices of the Royal Astronomical SocietyOpen Access

Shocks and complex chemodynamics in the metal-poor starburst galaxy CGCG 007-025 revealed through high-resolution echelle spectroscopy

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Authors

MVMacarena G del Valle-EspinosaVFVital FernándezRSRubén Sánchez-Janssen

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Overview

High-resolution spectroscopy reveals complex chemodynamics and metallicity in the metal-poor starburst galaxy, indicating fast shocks.

Key Points

  • Complex chemodynamics revealed high mass loss and chemical properties in CGCG 007-025, a metal-poor starburst galaxy.
  • The analysis involved over 30 emission lines, with the galaxy showing a metallicity of 12+log(O/H)=7.77±0.03.
  • Using echelle spectroscopy, the model highlights fast radiative shocks impacting emissions across different elements.
  • Results suggest significant overlap in metal-to-oxygen ratios when compared to those of the Milky Way, hence supporting stellar evolution models.

Cite This Study

Valle-Espinosa et al. (2025) studied this question.

synapsesocial.com/papers/68af494dad7bf08b1ead4b42https://doi.org/10.1093/mnras/staf1367
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