PIRSA:25070058 Conference

DOI10.48660/25070058

Conference/School: Cosmic Ecosystems

Mishra, N. (2025). The enriched circumgalactic and intergalactic medium of star-forming dwarf galaxies. Perimeter Institute. https://pirsa.org/25070058

Mishra, Nishant. The enriched circumgalactic and intergalactic medium of star-forming dwarf galaxies. Perimeter Institute, Jul. 30, 2025, https://pirsa.org/25070058 

@misc{ pirsa_PIRSA:25070058,
  doi = {10.48660/25070058},
  url = {https://pirsa.org/25070058},
  author = {Mishra, Nishant},
  keywords = {},
  language = {en},
  title = {The enriched circumgalactic and intergalactic medium of star-forming dwarf galaxies},
  publisher = {Perimeter Institute},
  year = {2025},
  month = {jul},
  note = {PIRSA:25070058 see, \url{https://pirsa.org}}
}

Abstract

The circumgalactic/intergalactic medium (CGM/IGM) represents a significant baryon reservoir for sustaining star formation and provides insights into the inflows, outflows, and feedback history of galaxies.  Star-forming dwarf galaxies, with their shallow potential wells, are predicted to drive metal-enriched gas into the CGM/IGM. Therefore, a census of the CGM around dwarf galaxies can provide insights into the stellar feedback. We present highly sensitive absorption-line measurements in quasar sightlines adjacent to 91 isolated dwarf galaxies with a median stellar mass of M_star/M_sun≈8.4 from the Cosmic Ultraviolet Baryon Survey (CUBS). This survey uses HST absorption spectroscopy to access a range of ion transitions from 0.077

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