Integral field spectroscopy in the near infrared of NGC 3125-A and SBS 0335-052

L. Vanzi, G. Cresci, M. Sauvage, Rodger I Thompson

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We present integral field spectroscopy in the near infrared of the nearby dwarf starburst galaxy NGC 3125-A and of the low metallicity dwarf galaxy SBS 0335-052. The use of adaptive optics in the observations produces sub-arcsecond angular resolution. We pinpoint the star forming cores of both galaxies, identify relevant ISM components such as dust, photo ionized gas, shock excited gas and molecular gas. We relate these components to the large scale star formation process of the galaxies. In particular we find the emission of the near infrared lines of H2 and especially [FeII] does not coincide with the HII region in NGC 3125. We have the first clear detection of [FeII] in SBS 0335-052.

Original languageEnglish (US)
Article numberA70
JournalAstronomy and Astrophysics
Volume534
DOIs
StatePublished - 2011

Fingerprint

dwarf galaxies
near infrared
spectroscopy
galaxies
starburst galaxies
ionized gases
molecular gases
angular resolution
adaptive optics
gases
gas
metallicity
star formation
dust
shock
stars

Keywords

  • dwarf
  • galaxies
  • individual
  • NGC 3125
  • SBS 0335-052
  • starburst

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Integral field spectroscopy in the near infrared of NGC 3125-A and SBS 0335-052. / Vanzi, L.; Cresci, G.; Sauvage, M.; Thompson, Rodger I.

In: Astronomy and Astrophysics, Vol. 534, A70, 2011.

Research output: Contribution to journalArticle

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AB - We present integral field spectroscopy in the near infrared of the nearby dwarf starburst galaxy NGC 3125-A and of the low metallicity dwarf galaxy SBS 0335-052. The use of adaptive optics in the observations produces sub-arcsecond angular resolution. We pinpoint the star forming cores of both galaxies, identify relevant ISM components such as dust, photo ionized gas, shock excited gas and molecular gas. We relate these components to the large scale star formation process of the galaxies. In particular we find the emission of the near infrared lines of H2 and especially [FeII] does not coincide with the HII region in NGC 3125. We have the first clear detection of [FeII] in SBS 0335-052.

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