A Statistical Study of XBLs, RBLs and FSRQs at 1.5 GHz
In: Chinese Journal of Astronomy and Astrophysics, Jg. 7 (2007-10-01), S. 629-638
Online
unknown
Zugriff:
BL Lac objects are similar to theflat spectrumradioquasarsin manyaspects except regarding the emission lines. In order to study their relationship, we selected 56 BL Lacertae objects (33 X-ray-selected, 23 radio-selected) and 45 flat spectrum radio quasars, analyzed their radio luminosities and core-dominanceparameters. We found that the radio luminosities of the radio selected BL Lac objects located in between the X-ray selected BL Lac objects and the flat spectrum radio quasars. However, this intermediate position does not hold for the core-dominance parameter: the RBLs have the largest core-dominanceparameters. This sug- gests that the core-dominance parameter can not be taken as a sequencing criterion. We also investigatedthe correlationbetween the luminosity and the core-dominanceparameterfor the three subclasses. We concluded that, here, the sequence XBL-RBL—FSRQ still exists.
Titel: |
A Statistical Study of XBLs, RBLs and FSRQs at 1.5 GHz
|
---|---|
Autor/in / Beteiligte Person: | Liu, Yi ; Zhou, Ji-Liang ; Li, Juan ; Fan, Jun-Hui |
Link: | |
Zeitschrift: | Chinese Journal of Astronomy and Astrophysics, Jg. 7 (2007-10-01), S. 629-638 |
Veröffentlichung: | IOP Publishing, 2007 |
Medientyp: | unknown |
ISSN: | 1009-9271 (print) |
DOI: | 10.1088/1009-9271/7/5/03 |
Schlagwort: |
|
Sonstiges: |
|