HST/STIS spectroscopy of the starburst core of M82

L. J. Smith, M. S. Westmoquette, J. S. Gallagher, R. W. O'Connell, R. de Grijs

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


We present HST/STIS spectroscopy for one slit position crossing the starburst core of M82, sampling both clusters and ionized gas at optical wavelengths. The spectra have a spatial resolution of 2 pc at the distance of M82, allowing us to probe the conditions within a starburst environment in unprecedented detail. We find that the ionized gas has high turbulent and thermal pressures (P/κ ∼ 107), reflecting the intense energy input from supernovae concentrated in super star clusters. The data also provide new insights into young clusters and their immediate environments. We identify a 6-7 Myr old cluster, M82-Al, which is still embedded in a compact Hit region.

Original languageEnglish
Title of host publicationStarbursts
Subtitle of host publicationfrom 30 Doradus to Lyman break galaxies
EditorsRichard de Grijs, Rosa M. Gonzâalez Delgado
Place of PublicationDordrecht
PublisherSpringer, Springer Nature
Number of pages4
ISBN (Electronic)9781402035395
ISBN (Print)9781402035388
Publication statusPublished - 2005
Externally publishedYes
EventConference on Starbursts - From 30 Doradus to Lyman Break Galaxies - Cambridge
Duration: 6 Sept 200410 Sept 2004

Publication series

NameAstrophysics and space science library


ConferenceConference on Starbursts - From 30 Doradus to Lyman Break Galaxies


  • Dimensional Spectrum
  • Young Cluster
  • Unprecedented Detail
  • Slit Position
  • Instantaneous Burst


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