Chemical Enrichment of the Complex Hot ISM of the Antennae Galaxies. I. Spatial and Spectral Analysis of the Diffuse X‐Ray Emission | Zendy

A. Baldi | Zendy; J. C. Raymond | Zendy; G. Fabbiano | Zendy; A. Zezas | Zendy; A. H. Rots | Zendy; F. Schweizer | Zendy; A. R. King | Zendy; T. J. Ponman | Zendy

Open Access

Chemical Enrichment of the Complex Hot ISM of the Antennae Galaxies. I. Spatial and Spectral Analysis of the Diffuse X‐Ray Emission

Author(s) -

A. Baldi,

J. C. Raymond,

G. Fabbiano,

A. Zezas,

A. H. Rots,

F. Schweizer,

A. R. King,

T. J. Ponman

Publication year - 2006

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.546

H-Index - 277

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/497914

Subject(s) - astrophysics , physics , galaxy , interstellar medium , angular resolution (graph drawing) , astronomy , x ray , spectral resolution , spectral analysis , image resolution , spectral line , spectroscopy , optics , mathematics , combinatorics

We present an analysis of the properties of the hot interstellar medium (ISM)in the merging pair of galaxies known as The Antennae (NGC 4038/39), performedusing the deep, coadded ~411 ks Chandra ACIS-S data set. These deep X-rayobservations and Chandra's high angular resolution allow us to investigate theproperties of the hot ISM with unprecedented spatial and spectral resolution.Through a spatially resolved spectral analysis, we find a variety oftemperatures (from 0.2 to 0.7 keV) and Nh (from Galactic to 2x10^21 cm^-2).Metal abundances for Ne, Mg, Si, and Fe vary dramatically throughout the ISMfrom sub-solar values (~0.2) up to several times solar.Comment: 33 pages, 18 figures, revised version accepted by Astrophysical Journal Supplement Serie

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