The radio, optical and X-ray properties of the radio source 0927+352
Abstract
The radio structure of the source 0927+352 (87GB 092752.8+351642) consists of a highly variable compact core and an extended diffuse halo, and comparison of its mas-scale and arcsec-scale structures suggests a twist of an internal jet and strong projection effects. Its optical counterpart varies by about 2mag and shows no hint of emission lines in its spectrum. A mean time-scale of radio variability of about 6^+4_-2 yr and a mean time delay between optical and radio `events' of about 4yr are suggested by collected data. X-ray emission from 0927+352 was detected by the ROSAT satellite, and we report on its X-ray spectrum. 0927+352 is probably a rather slowly variable BL Lac, although it could be a QSO with very weak emission lines.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- October 1996
- DOI:
- 10.1093/mnras/282.4.1305
- Bibcode:
- 1996MNRAS.282.1305M
- Keywords:
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- GALAXIES: ACTIVE;
- BL LACERTAE OBJECTS: GENERAL;
- GALAXIES: INDIVIDUAL: 0927+352;
- RADIO CONTINUUM: GALAXIES;
- X-RAYS: GALAXIES