arXiv Open Access 2021

A Novel Test of Quasar Orientation

Gordon T. Richards Richard M. Plotkin Paul C. Hewett Amy L. Rankine Angelica B. Rivera +2 lainnya

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Abstrak

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.

Topik & Kata Kunci

astro-ph.GA

Penulis (7)

Gordon T. Richards

Richard M. Plotkin

Paul C. Hewett

Amy L. Rankine

Angelica B. Rivera

Yue Shen

Ohad Shemmer

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APA MLA BibTeX

Richards, G.T., Plotkin, R.M., Hewett, P.C., Rankine, A.L., Rivera, A.B., Shen, Y. et al. (2021). A Novel Test of Quasar Orientation. https://arxiv.org/abs/2106.02633

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Informasi Jurnal

Tahun Terbit: 2021
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓