NASA NTRS · 19950044743
Three new BL Lacertae objects in the Palomar-Green survey
Abstract
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.
Keep this discovery
Explore connections, maps & timelines
Fleming, Thomas A., Green, Richard F., Jannuzi, Buell T., Liebert, James, Smith, Paul S., Fink, Henner. 1993-11-01. Three new BL Lacertae objects in the Palomar-Green survey. https://ntrs.nasa.gov/citations/19950044743
Cite the original work for its findings. Save a collection to share your selection of sources.