Corpus ID: 237502604

Deeply Buried Nuclei in the Infrared-Luminous Galaxies NGC 4418 and Arp 220: I. ALMA Observations at $\lambda = $1.4-0.4 mm and Continuum Analysis

@inproceedings{Sakamoto2021DeeplyBN,
  title={Deeply Buried Nuclei in the Infrared-Luminous Galaxies NGC 4418 and Arp 220: I. ALMA Observations at \$\lambda = \$1.4-0.4 mm and Continuum Analysis},
  author={Kazushi Sakamoto and Eduardo Gonz{\'a}lez-Alfonso and Sergio Martin and David J. Wilner and Susanne Aalto and Aaron S. Evans and Nanase Harada},
  year={2021}
}
We observed with ALMA three deeply buried nuclei in two galaxies, NGC 4418 and Arp 220, at ∼0. ′′2 resolution over a total bandwidth of 67 GHz in frest = 215–697 GHz. Here we (1) introduce our program, (2) describe our data reduction method for wide-band, high-resolution imaging spectroscopy, (3) analyze in visibilities the compact nuclei with line forests, (4) develop a continuum-based estimation method of dust opacity and gas column density in heavily obscured nuclei, which uses the BGN… Expand

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