Optical CCD imaging of GHz-peaked-spectrum radio sources
Optical CCD imaging of GHz-peaked-spectrum radio sources
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DOI：
10.1086/191812
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发表时间：
1993-09
影响因子：
8.7
通讯作者：
C. Stanghellini;C. O’Dea;S. Baum;E. Laurikainen
中科院分区：
文献类型：
--
作者：
C. Stanghellini;C. O’Dea;S. Baum;E. Laurikainen
28 个 GHz 峰值频谱 (GPS) 射电源（主要是射电星系）已在 r 和 i 光波段中成像，以便研究宿主星系并调查星系-星系相互作用在导致此类紧凑射电源形成中的重要性。我们在这里展示观察结果，而后续的论文将专门进行分析和讨论。我们发现了先前被归类为空域的七个物体的新标识，以及一个被错误识别为银河系恒星的物体。这将 1991 年 O'Dea、Baum 和 Stanghellini 样本中的空字段比例减少到仅 ∼ 8%。我们发现并证实受干扰的光学形态是 GPS 射电星系的一个共同特征
Twenty-eight GHz-peaked-spectrum (GPS) radio sources, mainly radio galaxies, have been imaged in the r and i optical bands in order to study the host galaxies and investigate the importance of galaxy-galaxy interactions in leading to the formation of this class of compact radio source. Here we present the observational results, while a subsequent paper will be devoted to the analysis and discussion. We find new identifications for seven objects previously classified as empty fields and one object misidentified with a Galactic star. This reduces the fraction of empty fields in the 1991 O'Dea, Baum, and Stanghellini sample to only ∼ 8 %. We find and confirm that disturbed optical morphologies are a common characteristic of GPS radio galaxies