Predictions for high-frequency radio surveys of extragalactic sources
Predictions for high-frequency radio surveys of extragalactic sources
复制标题
河外源高频射电勘测的预测
DOI：
10.1051/0004-6361:20042108
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发表时间：
2004
影响因子：
6.5
通讯作者：
J. González
中科院分区：
文献类型：
--
作者：
G. Zotti;R. Ricci;D. Mesa;Laura Silva;P. Mazzotta;L. Toffolatti;J. González
我们提出了详细的预测的贡献，各种源人口的计数在几十GHz的频率。对平谱射电类星体、BL Lac天体和陡谱源提出了新的演化模型。还讨论了以高频率谱峰为特征的源群，如极端GPS源、ADAF/ADIOS源和γ暴余辉的早期相。不同人口的恒星形成星系（正常的螺旋，星爆，高Z星系SCUBA和MAMBO调查发现，解释为原球状星系）的计数估计考虑到同步辐射和自由-自由发射，尘埃再辐射。我们的分析完成了更新的星系团中的Sunyaev-Zeldovich效应的计数和银河系尺度的Sunyaev-Zeldovich信号与原银河系等离子体的初步估计。
We present detailed predictions of the contributions of the various source populations to the counts at frequen- cies of tens of GHz. New evolutionary models are worked out for flat-spectrum radio quasars, BL Lac objects, and steep- spectrum sources. Source populations characterized by spectra peaking at high radio frequencies, such as extreme GPS sources, ADAF/ADIOS sources and early phases of γ-ray burst afterglows are also dealt with. The counts of different populations of star-forming galaxies (normal spirals, starbursts, high-z galaxies detected by SCUBA and MAMBO surveys, interpreted as proto-spheroidal galaxies) are estimated taking into account both synchrotron and free-free emission, and dust re-radiation. Our analysis is completed by updated counts of Sunyaev-Zeldovich effects in clusters of galaxies and by a preliminary estimate of galactic-scale Sunyaev-Zeldovich signals associated to proto-galactic plasma.