Bibcode
Benítez, E.; Stepanian, J. A.; Krongold, Y.; Cruz-González, I.; de Diego, J. A.
Bibliographical reference
Galaxy Evolution: Theory & Observations (Eds. Vladimir Avila-Reese, Claudio Firmani, Carlos S. Frenk & Christine Allen) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 17, pp. 104-104 (2003) (http://www.astroscu.unam.mx/~rmaa/)
Advertised on:
6
2003
Citations
0
Refereed citations
0
Description
In this work we present some results of the multiwavelength study
performed to a sample of 26 NLS1s discovered in the Second Byurakan
Survey (SBS NLS1s). One of our main findings is that almost all SBS
NLS1s may not have the FIR bump. Their SED suggest that they may also
possess the BBB. In contrast with previous works, we have found weak
soft X-ray NLS1s, radio loud NLS1s, weak FeII emission NLS1s, as well as
objects with FWHM of H[ scriptstyle beta ]less than 2000 km s-1, but
with [OIII]/H[ scriptstyle beta ]> 3. These results suggest that the
NLS1s definition is very smooth and artificial.