Spectroscopy of RC sources

被引：5

作者：

Afanas'ev, VL ^{[1
]}

Dodonov, SN

Moiseev, AV

Verkhodanov, OV

Kopylov, AI

Pariiskii, YN

Soboleva, NS

Temirova, AV

Zhelenkova, OP

Goss, WM

机构：

[1] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz, Russia

[2] Special Astrophys Observ, St Petersburg Branch, St Petersburg, Russia

[3] Natl Radio Astron Observ, Socorro, NM 87801 USA

来源：

ASTRONOMY REPORTS | 2003年 / 47卷 / 05期

关键词：

D O I：

10.1134/1.1575852

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The results of spectroscopic observations of the host galaxies of objects in the RC catalog (the "Big Trio" program) obtained using the new SCORPIO spectrograph of the Special Astrophysical Observatory are presented. The spectroscopic redshifts of the objects are compared with their photometric color redshifts, and the errors in the latter are estimated. Based on BV RI observations obtained on the 6-m telescope of the SAO, the errors for the population of powerful radio galaxies are close to those found previously for radio quiet galaxies (about 10-20%). The detection of Ly alpha in the B filter in RC 1626+0448 is confirmed. This object is the second spectrally studied FR II radio source from the RC catalog to have a redshift z > 2.5. Star formation in its host galaxy began at a redshift z > 3.3. This first use of the new SCORPIO spectrograph demonstrates its promise for studies of very distant steep-spectrum radio galaxies brighter than 23(m)-24(m) in V. (C) 2003 MAIK "Nauka/Interperiodica".

引用

页码：377 / 385

页数：9

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