High-Resolution Infrared Imaging of the Compact Nuclear Source in NGC 4258

@article{Chary1999HighResolutionII,
  title={High-Resolution Infrared Imaging of the Compact Nuclear Source in NGC 4258},
  author={Ranga-Ram Chary and Eric Edward Becklin and Aaron S. Evans and Gerry X. Neugebauer and Nicholas Scoville and Keith Y. Matthews and Michael E. Ressler},
  journal={The Astrophysical Journal},
  year={1999},
  volume={531},
  pages={756-763}
}
We present high-resolution imaging of the nucleus of NGC 4258 from 1 to 18 μm. Our observations reveal that the previously discovered compact source of emission is unresolved even at the near-infrared resolution of ~0.”2 FWHM, which corresponds to about 7 pc at the distance of the galaxy. This is consistent with the source of emission being the region in the neighborhood of the purported 3.5 × 10^7 M☉ black hole. After correcting for about 18 mag of visual extinction, the infrared data are… Expand

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