Published February 1990
| Version v1
Journal article
H1722 + 119 - A highly polarized X-ray-selected BL Lacertae object
Creators
- 1. Naval Research Laboratory, Washington, DC (USA)
- 2. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)
- 3. MIT, Cambridge, MA (USA)
- 4. Mount Stromlo and Siding Spring Observatories, Canberra (Australia)
Description
A 15th-mag, X-ray-selected BL Lac object, H1722 + 119, has been discovered to possess a steep X-ray spectrum with power-law energy index near 1.3; radio measurements indicate a variable, compact source with 1.4-4.9 GHz power-law energy index of 0.04. The optical-IR polarization of H1722 + 119 reaches a maximum of 17 percent, which is much higher than other X-ray-selected BL Lac objects. The degree of polarization is found to be wavelength-dependent, decreasing monotonically toward the IR. 49 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 350
- Series
- Astrophys. J.
- Journal Page Range
- 578-584
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21055655
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BL LACERTAE OBJECTS; COSMIC X-RAY SOURCES; ELECTROMAGNETIC RADIATION; POLARIZATION; RADIO GALAXIES; RADIOWAVE RADIATION; X-RAY SPECTRA
- Descriptors DEC
- COSMIC RADIO SOURCES; COSMIC RAY SOURCES; GALAXIES; RADIATIONS; SPECTRA