X-ray evidence for spectroscopic diversity of type Ia supernovae: XMM observation of the elemental abundance pattern in M87

  title={X-ray evidence for spectroscopic diversity of type Ia supernovae: XMM observation of the elemental abundance pattern in M87},
  author={Alexis Finoguenov and Kyoko Matsushita and Hans B{\"o}hringer and Yasushi Ikebe and Monique D. Arnaud},
  journal={Astronomy and Astrophysics},
We present the results of a detailed element abundance study of hot gas in M 87, observed by XMM-Newton. We choose two radial bins, $1'{-}3'$ and $8'{-}16'$ ($8'{-}14'$ for EMOS; hereafter the central and the outer zones), where the temperature is almost constant, to carry out the detailed abundance measurements of O, Ne, Mg, Si, S, Ar, Ca, Fe and Ni using EPIC-PN (EPN) and -MOS (EMOS) data. First, we find that the element abundance pattern in the central compared to the outer zone in M 87 is… 

Figures and Tables from this paper

XMM observations of M 87. II. Abundance structure of the interstellar and intergalactic medium

Based on a detailed study of the temperature structure of the intracluster medium in the halo of M 87, abundance profiles of 7 elements, O, Mg, Si, S, Ar, Ca, and Fe are derived. In addition,

Core‐collapse supernova enrichment in the core of the Virgo cluster

Using a deep (574 ks) Chandra observation of M87, the dominant galaxy of the nearby Virgo cluster, we present the best measurements to date of the radial distribution of metals in the central

Intermediate-Element Abundances in Galaxy Clusters

We present the average abundances of the intermediate elements obtained by performing a stacked analysis of all the galaxy clusters in the archive of the X-ray telescope ASCA. We determine the

XMM Observations of abundances in the intracluster medium

. Based on XMM-Newton observations of M 87 and the Centaurus cluster, abundance profiles of various elements of the intracluster medium (ICM) are derived. The abundances of Si and Fe show strong

Chemical enrichment in the cluster of galaxies Hydra A

We analyzed global properties, radial profiles, and 2D maps of the metal abundances and temperature in the cool core cluster of galaxies Hydra A using a deep ∼120 ks XMM-Newton exposure. The best fit

XMM-Newton high-resolution spectroscopy reveals the chemical evolution of M 87

We present a study of chemical abundances in the giant elliptical galaxy M 87 using high-resolution spectra obtained with the Reflection Grating Spectrometers during two deep XMM-Newton observations.

X-MAS2: Study Systematics on the ICM Metallicity Measurements

X-ray measurements of the intracluster medium metallicity are becoming more and more frequent due to the availability of powerful X-ray telescopes with excellent spatial and spectral resolutions. The

Enrichment of the Hot Intracluster Medium: Observations

Four decades ago, the firm detection of an Fe-K emission feature in the X-ray spectrum of the Perseus cluster revealed the presence of iron in its hot intracluster medium (ICM). With more advanced

Suzaku Observation of the Metallicity Distribution in the Intracluster Medium of the Fornax Cluster(Chapter 3. Chemical Structure and Evolution Clusters of Galaxy, The Extreme Universe in the Suzaku Era)

The metallicity distribution in the Fornax cluster was studied with the XIS instrument on board the Suzaku satellite. The K-shell lines of O and Mg were resolved clearly, and the abundances of O, Mg,

Origin of central abundances in the hot intra-cluster medium - II. Chemical enrichment and supernova yield models

The hot intra-cluster medium (ICM) is rich in metals, which are synthesised by supernovae (SNe) and accumulate over time into the deep gravitational potential well of clusters of galaxies. Since most



Constraints on Type Ia Supernova Models from X-Ray Spectra of Galaxy Clusters

We present constraints on theoretical models of Type Ia supernovae (SNe) using spatially resolved ASCA X-ray spectroscopy of three galaxy clusters: Abell 496, Abell 2199, and Abell 3571. All three

An ASCA Study of the Heavy-Element Distribution in Clusters of Galaxies

We perform a spatially resolved X-ray spectroscopic study of a set of 11 relaxed clusters of galaxies observed by the ROSAT/PSPC and ASCA/SIS. Using a method, which corrects for the energy-dependent

Metal Abundances in the Hot Interstellar Medium in Early-Type Galaxies Observed with ASCA

We have analyzed ASCA data of 27 early-type galaxies, and studied the properties of their X-ray emitting ISM (Inter Stellar Medium) in detail. We found that overlapping lines and free-bound

SN Ia Enrichment in Virgo Early-type Galaxies from ROSAT and ASCA Observations

We analyzed nine X-ray-bright Virgo early-type galaxies observed by both ASCA and ROSAT. Through spatially resolved spectroscopy, we determined the radial temperature profiles and abundances of Mg,

Temperature and Heavy-Element Abundance Profiles of Cool Clusters of Galaxies from ASCA

We perform a spatially resolved X-ray spectroscopic study of a set of 18 relaxed clusters of galaxies with gas temperatures below 4 keV. Spectral analysis was done using ASCA/SIS data coupled with

Metallicity Gradients in the Intracluster Gas of Abell 496

Analysis of spatially resolved ASCA spectra of the intracluster gas in Abell 496 confirms there are mild metal abundance enhancements near the center, as previously found in a joint analysis of

Mass and Metallicity of Five X-Ray-bright Galaxy Groups

We present ASCA X-ray observations of a sample of five groups selected from a cross-correlation of the ROSAT All-Sky Survey with the White et al. optical catalog of groups. These X-ray-bright groups

On the metal abundance in the core of M 87

We revisit the XMM-Newton observation of M 87 to make a new and more detailed measurement of the metal abundance prole. After having veried that spectral ts with single temperature models show a

Evolution of 3-9 M☉ Stars for Z = 0.001-0.03 and Metallicity Effects on Type Ia Supernovae

Recent observations have revealed that Type Ia supernovae (SNe Ia) are not perfect standard candles; they show variations in their absolute magnitudes, light-curve shapes, and spectra. The C/O ratio

Constraining the role of Type IA and Type II supernovae in galaxy groups by spatially resolved analysis of ROSAT and ASCA observations

We present the results of modelling the distribution of gas properties in the galaxy groups HCG 51, HCG 62 and NGC 5044, and in the poor cluster AWM 7, using both ASCA SIS and ROSAT data. The