3 NEW BL LACERTAE OBJECTS IN THE PALOMAR-GREEN SURVEY

被引：42

作者：

FLEMING, TA

GREEN, RF

JANNUZI, BT

LIEBERT, J

SMITH, PS

FINK, H

机构：

[1] MAX PLANCK INST EXTRATERR PHYS,D-85740 GARCHING,GERMANY

[2] NATL OPT ASTRON OBSERV,TUCSON,AZ 85726

[3] INST ADV STUDY,PRINCETON,NJ 08540

来源：

ASTRONOMICAL JOURNAL | 1993年 / 106卷 / 05期

关键词：

D O I：

10.1086/116760

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have identified three BL Lacertae objects in the Palomar-Green Survey which were previously misclassified as DC white dwarfs, namely PG 1246+586, PG 1424+240, and PG 1437+398. Our reclassification is based on the detection of these objects as x-ray sources in the ROSAT all-sky survey and upon our subsequent detection of intrinsic linearly polarized and variable optical emission from these sources. As a result of the ROSAT survey, the number of identified BL Lac objects in the Palomar-Green catalog of UV excess objects has been doubled. Corrected optical positions are presented for PG 1246+586 and PG 1437+398.

引用

页码：1729 / 1733

页数：5

共 27 条

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