2015/07/06 by Brian Punsly, Punsly, Brian, Paola Marziani +1
Physics and Astronomy · #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #astro-ph.GA
paper · pdf · doi:10.48550/arxiv.1507.01579
To appear in MNRAS Lett. Introduces method of estimating instantaneous jet power. Version 2 added inadvertently missing term to equation 4 that was caught in proofs
arxiv created 2015/07/21 · arxiv updated 2015/07/23
Only a handful of quasars have been identified as kinetically dominated, their long term time averaged jet power, Q, exceeds the bolometric thermal emission, Lbol, associated with the accretion flow. This letter presents the first extreme ultraviolet (EUV) spectrum of a kinetically dominated quasar, 3C 270.1. The EUV continuum flux density of 3C 270.1 is very steep, Fν ∼ ν^-αEUV, αEUV =2.98± 0.15. This value is consistent with the correlation of Q/Lbol and αEUV found in previous studies of the EUV continuum of quasars, the EUV deficit of radio loud quasars. Curiously, although ultraviolet broad absorption line (BAL) troughs in quasar spectra are anti-correlated with Q, 3C 270.1 has been considered a BAL quasar based on an SDSS spectrum. This claim is examined in terms of the EUV spectrum of OVI 1and the highest resolution CIV spectrum in the archival data and the SDSS spectrum. First, from [OIII]4959,5007 (IR) observations and the UV spectral lines, it is concluded that the correct redshift for 3C 270.1 is 1.5266. It is then found that the standard measure of broad absorption, BALnicity = 0, for MgII 2800, CIV 1549 and OVI 1032 in all epochs.