%0 Generic %1 richards2021novel %A Richards, Gordon T. %A Plotkin, Richard M. %A Hewett, Paul C. %A Rankine, Amy L. %A Rivera, Angelica B. %A Shen, Yue %A Shemmer, Ohad %D 2021 %K library %T A Novel Test of Quasar Orientation %U http://arxiv.org/abs/2106.02633 %X The orientation of the disk of material accreting onto supermassive black holes that power quasars is one of most important quantities that are needed to understand quasars -- both individually and in the ensemble average. We present a hypothesis for determining comparatively edge-on orientation in a subset of quasars (both radio loud and radio quiet). If confirmed, this orientation indicator could be applicable to individual quasars without reference to radio or X-ray data and could identify some 10-20% of quasars as being more edge-on than average, based only on moderate resolution and signal-to-noise spectroscopy covering the CIV 1549A emission feature. We present a test of said hypothesis using X-ray observations and identify additional data that are needed to confirm this hypothesis and calibrate the metric.

@misc{richards2021novel, abstract = {The orientation of the disk of material accreting onto supermassive black holes that power quasars is one of most important quantities that are needed to understand quasars -- both individually and in the ensemble average. We present a hypothesis for determining comparatively edge-on orientation in a subset of quasars (both radio loud and radio quiet). If confirmed, this orientation indicator could be applicable to individual quasars without reference to radio or X-ray data and could identify some 10-20% of quasars as being more edge-on than average, based only on moderate resolution and signal-to-noise spectroscopy covering the CIV 1549A emission feature. We present a test of said hypothesis using X-ray observations and identify additional data that are needed to confirm this hypothesis and calibrate the metric.}, added-at = {2021-06-07T08:09:07.000+0200}, author = {Richards, Gordon T. and Plotkin, Richard M. and Hewett, Paul C. and Rankine, Amy L. and Rivera, Angelica B. and Shen, Yue and Shemmer, Ohad}, biburl = {https://www.bibsonomy.org/bibtex/2fe6355b25c1b56563b700487be330c8e/gpkulkarni}, description = {A Novel Test of Quasar Orientation}, interhash = {dcdd433d734e96104c59f592dd2a8d96}, intrahash = {fe6355b25c1b56563b700487be330c8e}, keywords = {library}, note = {cite arxiv:2106.02633Comment: 7 pages, 2 figures, accepted for publication in ApJL}, timestamp = {2021-06-07T08:09:07.000+0200}, title = {A Novel Test of Quasar Orientation}, url = {http://arxiv.org/abs/2106.02633}, year = 2021 }