Initial Mass Function Variation in Two Elliptical Galaxies Using Near-infrared Tracers

@article{Meyer2019InitialMF,
  title={Initial Mass Function Variation in Two Elliptical Galaxies Using Near-infrared Tracers},
  author={R. Meyer and S. Sivanandam and Dae-Sik moon},
  journal={The Astrophysical Journal},
  year={2019},
  volume={875},
  pages={151}
}
  • R. Meyer, S. Sivanandam, Dae-Sik moon
  • Published 2019
  • Physics
  • The Astrophysical Journal
  • Using integral field spectroscopy, we demonstrate that gravity-sensitive absorption features in the zJ-band (0.9--1.35 \micron) can constrain the low-mass stellar initial mass function (IMF) in the cores of two elliptical galaxies, M85 and M87. Compared to the visible bands, the near-infrared (NIR) is more sensitive to light from low-mass dwarf stars, whose relative importance is the primary subject of the debate over IMF variations in nearby galaxies. Our analysis compares the observed spectra… CONTINUE READING

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