The EMSS Radio Loud Quasar Sample
| dc.creator | Wolter, Anna | |
| dc.creator | Celotti, Annalisa | |
| dc.date | 2000-10-04 | |
| dc.date.accessioned | 2026-07-07T01:55:48Z | |
| dc.date.available | 2026-07-07T01:55:48Z | |
| dc.description | We construct the first X-ray selected sample of radio-loud quasars from the EMSS survey. The X-ray selection allows us to explore the properties of radio-loud quasars 10-100 weaker than classical samples in the radio band. There are no radio-loud quasars whose synchrotron peak reaches the UV-soft X-ray band at these (radio) flux levels (as occurs for BL Lac objects selected in the X-ray band), but they appear to have comparatively stronger optical-UV emission. We suggest that this can be ascribed to a significant contribution from a quasi-thermal optical-UV component, emerging due to the comparatively weak non-thermal emission. The detection of sources at low radio fluxes also shows the presence of a large population of steep spectrum quasars, and the lack of the predicted turnover in the quasar counts. | |
| dc.description | proceedings of "Blazar Demographics and Physics", ASP Conf. Series, P. Padovani and C. M. Urry eds., 4 pages, 4 ps figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0010086 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0010086 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/1783 | |
| dc.subject | Astrophysics | |
| dc.title | The EMSS Radio Loud Quasar Sample | |
| dc.type | text |