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@article{2379399,
author = {Vigneron, Benjamin and HlavacekandLarrondo, Julie and Rhea, Carter Lee and GendronandMarsolais, MarieandLou and Lim, Jeremy and Reinheimer, Jake and Li, Yuan and Drissen, Laurent and Bryan, Greg L. and Donahue, Megan and Edge, Alastair and Fabian, Andrew and Hamer, Stephen and Thomas, Martin and McDonald, Michael and McNamara, Brian and RichardandLafferriere, Annabelle and RousseauandNepton, Laurie and Voit, G Mark and Webb, Tracy and Werner, Norbert},
article_number = {1},
doi = {http://dx.doi.org/10.3847/1538-4357/ad0fd8},
keywords = {AGN host galaxies; Active galaxies; Brightest cluster galaxies; Filamentary nebulae; Perseus Cluster},
language = {eng},
issn = {0004-637X},
journal = {Astrophysical Journal},
title = {High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275},
url = {https://iopscience.iop.org/article/10.3847/1538-4357/ad0fd8},
volume = {962},
year = {2024}
}
TY - JOUR
ID - 2379399
AU - Vigneron, Benjamin - Hlavacek-Larrondo, Julie - Rhea, Carter Lee - Gendron-Marsolais, Marie-Lou - Lim, Jeremy - Reinheimer, Jake - Li, Yuan - Drissen, Laurent - Bryan, Greg L. - Donahue, Megan - Edge, Alastair - Fabian, Andrew - Hamer, Stephen - Thomas, Martin - McDonald, Michael - McNamara, Brian - Richard-Lafferriere, Annabelle - Rousseau-Nepton, Laurie - Voit, G Mark - Webb, Tracy - Werner, Norbert
PY - 2024
TI - High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275
JF - Astrophysical Journal
VL - 962
IS - 1
SP - 1-21
EP - 1-21
PB - IOP Publishing Ltd
SN - 0004637X
KW - AGN host galaxies
KW - Active galaxies
KW - Brightest cluster galaxies
KW - Filamentary nebulae
KW - Perseus Cluster
UR - https://iopscience.iop.org/article/10.3847/1538-4357/ad0fd8
N2 - We present new high-spectral-resolution observations (R = lambda/Delta lambda = 7000) of the filamentary nebula surrounding NGC 1275, the central galaxy of the Perseus cluster. These observations have been obtained with SITELLE, an imaging Fourier transform spectrometer installed on the Canada-France-Hawai Telescope with a field of view of 11 ' x11 ' , encapsulating the entire filamentary structure of ionized gas despite its large size of 80 kpc x 50 kpc. Here, we present renewed fluxes, velocities, and velocity dispersion maps that show in great detail the kinematics of the optical nebula at [S ii] lambda 6716, [S ii] lambda 6731, [N ii] lambda 6584, H alpha (6563 angstrom), and [N ii] lambda 6548. These maps reveal the existence of a bright flattened disk-shaped structure in the core extending to r similar to 10 kpc and dominated by a chaotic velocity field. This structure is located in the wake of X-ray cavities and characterized by a high mean velocity dispersion of 134 km s-1. The disk-shaped structure is surrounded by an extended array of filaments spread out to r similar to 50 kpc that are 10 times fainter in flux, remarkably quiescent, and have a uniform mean velocity dispersion of 44 km s-1. This stability is puzzling given that the cluster core exhibits several energetic phenomena. Based on these results, we argue that there are two mechanisms that form multiphase gas in clusters of galaxies: a first triggered in the wake of X-ray cavities leading to more turbulent multiphase gas and a second, distinct mechanism, that is gentle and leads to large-scale multiphase gas spreading throughout the core.
ER -
VIGNERON, Benjamin, Julie HLAVACEK-LARRONDO, Carter Lee RHEA, Marie-Lou GENDRON-MARSOLAIS, Jeremy LIM, Jake REINHEIMER, Yuan LI, Laurent DRISSEN, Greg L. BRYAN, Megan DONAHUE, Alastair EDGE, Andrew FABIAN, Stephen HAMER, Martin THOMAS, Michael MCDONALD, Brian MCNAMARA, Annabelle RICHARD-LAFFERRIERE, Laurie ROUSSEAU-NEPTON, G Mark VOIT, Tracy WEBB and Norbert WERNER. High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275. \textit{Astrophysical Journal}. IOP Publishing Ltd, 2024, vol.~962, No~1, p.~1-21. ISSN~0004-637X. Available from: https://dx.doi.org/10.3847/1538-4357/ad0fd8.
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