Objects from a cross-identification of the IRAS and low-frequency Texas radio catalogs

被引：0
|
作者：
O. V. Verkhodanov
V. H. Chavushyan
Raul Mújica
S. A. Trushkin
José R. Valdés
机构：
[1] Russian Academy of Sciences,Special Astrophysical Observatory
[2] Instituto Nacional de Astrofisica,undefined
[3] Óptica y Electrónica,undefined
来源：
Astronomy Reports | 2003年 / 47卷
关键词：
Optical Image; Spectral Index; Optical Spectrum; Radio Source; Radio Telescope;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A cross-identification of objects in the low-frequency (365 MHz) Texas radio catalog and in IRAS catalogs at four infrared wavelengths has yielded a list of 715 objects for further studies. Objects with steep spectra for which the difference in the centers of gravity of the radio and infrared sources was less than 3″ were selected from this list. Seventeen of the objects have been observed at six wavelengths using the RATAN-600 radio telescope. Spectra of nine objects from the initial list for which there were candidate optical counterparts were obtained using the 2.1-m telescope of the INAOE. The results of these observations are discussed. The presence of steep spectral indices for the radio sources is confirmed. The possible optical counterparts include interacting galaxies, an infrared galaxy, two emission-line galaxies, and a candidate BL Lac object. Optical images of the optical counterparts are presented together with radio and optical spectra.
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页码：119 / 128
页数：9
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