Stratification of the AGN-Driven multi-phase outflows in the dwarf Seyfert galaxy NGC 4395

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Authors: Payel Nandi, Luis Colina, Rogemar André Riffel, M. Pereira-Santaella, Chelliah Subramonian Stalin, Dhruba J. Saikia, Javier Álvarez-Márquez, Markus Kissler Patig
Cited by: 0

Abstract

We present a multi-wavelength study of nuclear outflows in the nearby dwarf Seyfert galaxy NGC~4395, which hosts an intermediate-mass black hole. Using \textit{JWST}/NIRSpec and MIRI IFU spectroscopy (1.66--28.6~$μ$m), together with ALMA and Gemini/GMOS data, we probe the ionised and molecular gas on parsec scales. The JWST nuclear spectra reveal 134 emission lines, including H\,\textsc{i}, He, numerous fine-structure lines, H$_2$ rotational/ro-vibrational transitions, and several PAH bands. Modelling of the H$_2$ rotational lines reveals three warm/hot molecular components ($T\!\approx\!580$, 1480, and 2900~K), along with a cold ($

Fields of Study & Subjects

Galaxies: Formation Evolution Phenomena Astrophysical Phenomena and Observations Astrophysics and Star Formation Studies

Publication details

Journal / source
arXiv (Cornell University)
Publication date
9 February 2026
Language
EN
Document type
Preprint