Near infrared and optical spectroscopy of FSC10214+4724

Details Near infrared and optical spectroscopy of FSC10214+4724 Near infrared and optical spectroscopy of FSC10214+4724

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995nias.book.....s&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Infrared Astronomy, Infrared Sources (Astronomy), Infrared Spectroscopy, Ionization, Near Infrared Radiation, Seyfert Galaxies, Telescopes, Visual Observation, Extinction, Luminosity, Stellar Evolution, Stellar Spectra

Scientific paper

New infrared and optical spectroscopic observations, obtained with the W.M. Keck Telescope, are reported for the highly luminous infrared source FSC10214+4724. The rest frame optical spectrum shows new emission lines of (NeIII, (NeV), (OI), (OII), (SII), and He(+) while the rest frame ultraviolet spectrum shows new lines of OIV+SiIV, NII, NIV, SiII, NeIV and possibly NII and (NeIII), as well as clearly showing the L alpha is self-absorbed. The emission line spectrum is most characteristic of a Seyfert 2 nucleus. The preponderance of spectroscopic evidence strengthens the case of a dust enshrouded AGN powering much or most of the observed luminosity. The various spectral lines lead to a wide range in the inferred reddening and ionization parameter for this system, suggesting that we are viewing several environments through differing extinctions.

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