A Compact X-Ray Absorbing Structure at the Base of the Northern Cone in NGC 4388

Clicks: 1
ID: 319563
2026
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal

Ranked #817 of 908 articles by views in monthly notices of the royal astronomical society

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 908 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Abstract We report a localized X-ray surface-brightness dip at 1″–4″ in the northern ionization cone of NGC 4388 based on Chandra observations. The dip exhibits strong spectral hardening, consistent with line-of-sight absorption of NH ~ 1.1 × 1022 cm−2. The dip is spatially associated with enhanced dust extinction in HST V-H color maps. Fe Kα emission is detected on both sides of the nucleus, indicating that cold material is present around the nucleus and arguing against a simple deficit of emitting gas as the primary origin of the X-ray dip. The similar non-monotonic dip-rise structure in the [O III] and soft X-ray profiles further supports localized absorption, while the subsequent rise in [O III] suggests additional downstream excitation (e.g., shock compression or heating). These multiwavelength data reveal a compact, multiphase structure on spatial scales of ~80–320 pc at the base of the northern cone. These results highlight the value of multiwavelength datasets for characterizing compact obscuring structures in AGN circumnuclear environments. While the detailed dynamical origin remains uncertain, the spatial coincidence with the base of the radio jet and independent evidence for shocks suggest that jet-ISM interaction may be a contributing factor.
Reference Key
openalex_W7167232294 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Huili Yi
Journal monthly notices of the royal astronomical society
Year 2026
DOI
10.1093/mnras/stag1261
URL
https://doi.org/10.1093/mnras/stag1261
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.