The extreme high frequency peaked BL Lac 1517+656
| dc.creator | Beckmann, Volker | |
| dc.creator | Bade, Norbert | |
| dc.creator | Wucknitz, Olaf | |
| dc.date | 1999-10-25 | |
| dc.date.accessioned | 2026-07-07T02:34:01Z | |
| dc.date.available | 2026-07-07T02:34:01Z | |
| dc.description | We present optical spectroscopy data that allowed a measurement of the redshift for the X-ray selected BL Lacertae object 1517+656. With a redshift of z = 0.702 this object has an absolute magnitude of B = -26.4 and is also an extremely powerful radio and X-ray source. Although being a high frequency peaked BL Lac, this object is one of the most luminous BL Lac objects known so far. Being also a candidate for gravitational lensing, this object is of high interest for the BL Lac research. Assuming several cosmological models and a realistic redshift for the lensed object, we find that 1517+656 has a mass > 2 * 10^12 solar masses and a high velocity dispersion > 350 km/sec. | |
| dc.description | 5 pages, 4 postscript figures, accepted for publication in A&A | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9910440 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9910440 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/15081 | |
| dc.subject | Astrophysics | |
| dc.title | The extreme high frequency peaked BL Lac 1517+656 | |
| dc.type | text |