Extended broad-line emission in the obscured Seyfert 1 Nucleus of NGC 4388

Details Extended broad-line emission in the obscured Seyfert 1 Nucleus of NGC 4388 Extended broad-line emission in the obscured Seyfert 1 Nucleus of NGC 4388

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...332l..55s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 332, Sept. 15, 1988, p. L55-L58. Research supported by the Univer

Astronomy and Astrophysics

Astronomy

52

Emission Spectra, Galactic Nuclei, H Alpha Line, Seyfert Galaxies, Spectral Line Width, Astronomical Spectroscopy, Radio Astronomy, X Ray Astronomy

Scientific paper

Spectroscopic observations of extended off-nuclear broad H-alpha emission (FWZI = about 4000 km/s) are reported for NGC 4388, a galaxy often classified as a type 2 Seyfert. These features are interpreted as scattered radiation from a Seyfert 1 nucleus that is obscured along the line of sight, possibly by the normal interstellar medium in this galaxy. NGC 4388 strongly resembles NGC 1068, another object with a hidden broad-line region, and may be useful for understanding the relationship between Seyfert 1 and Seyfert 2 galaxies. A scattering origin for the off-nuclear broad emission may be tested by spectropolarimetric observations.

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