English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We build a bulk velocity-dependent photoionization model of the warm absorberof the Seyfert 1 galaxy NGC 3783. By adopting functional forms for velocity ofthe flow and its particle density with radius, appropriate for radiation drivenwinds, we compute the ionization, temperature, line Doppler shift, and lineoptical depths as a function of distance. By doing this we obtain detailedprofiles for the entire absorption line spectrum. The model reproduces theobserved relationship between the gas ionization and the velocity shift of theline centroids as well as the asymmetry of the absorption lines in the X-rayspectrum of NGC 3783. It is found that the distribution of asymmetry requiresthe presence of two outflows: a higher ionization component responsible for theblue wings of the high ionization lines and the red wings of the low ionizationoxygen lines, and a lower ionization flow that makes up for the blue wings ofthe oxygen lines. Our model predicts a relationship between the X-rays and theUV absorbers, where the component creating the long wavelength lines in theX-ray spectrum is also responsible for creating at least part of the UVabsorption troughs.

Kinematics from spectral lines for AGN outflows based on time-independent radiation-driven wind theory