SIMBAD references

2008MNRAS.383.1513L - Mon. Not. R. Astron. Soc., 383, 1513-1518 (2008/February-1)

The near-infrared to ultraviolet continuum of radio-loud versus radio-quiet quasars.


Abstract (from CDS):

Starting from a sample of Sloan Digital Sky Survey quasars appearing also in the Two-Micron All-Sky Survey, we study the continuum properties of ∼1000 objects observed in eight bands, from near-infrared to ultraviolet. We construct the mean spectral energy distribution (SED) and compare and contrast the continua of radio-loud and radio-quiet quasar (RLQ and RQQ, respectively) objects. The SEDs of the two populations are significantly different, in the sense that RLQs are redder with power-law spectral indices <αRLQ> = -0.55±0.04 and <αRQQ> = -0.31±0.01 in the spectral range between 1014.5 and 1015.35 Hz. This difference is discussed in terms of different extinctions, different disc temperatures, or slopes of the non-thermal component.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): galaxies: active - galaxies: nuclei - quasars: general

VizieR on-line data: <Available at CDS (J/MNRAS/383/1513): table1.dat>

Simbad objects: 887

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