We present Chandra and XMM-Newton X-ray observations of the Abell 3391/Abell 3395 intercluster filament. It has been suggested that the galaxy clusters Abell 3395, Abell 3391, and the galaxy group ESO-161 -IG 006 located between the two clusters, are in alignment along a large-scale intercluster filament. We find that the filament is aligned close to the plane of the sky, in contrast to previous results. We find a global projected filament temperature kT=4.45+0.89/-0.55 keV, electron density n = 1.08+0.06 ́ 10-4 cm−3, and M = 2.7+0.2 ́ -0.55 e -0.05 gas -0.1 1013 Me. The thermodynamic properties of the filament are consistent with that of the intracluster medium (ICM) of Abell 3395 and Abell 3391, suggesting that the filament emission is dominated by ICM gas that has been tidally disrupted during an early stage merger between these two clusters. We present temperature, density, entropy, and abundance profiles across the filament. We find that the galaxy group ESO-161 may be undergoing ram-pressure- stripping in the low-density environment at or near the virial radius of both clusters, due to its rapid motion through the filament.

Alvarez, G.e., Randall, S.w., Bourdin, H., Jones, C., Holley-Bockelmann, K. (2018). Chandra and XMM-Newton observations of the abell 3395/Abell 3391 intercluster filament. THE ASTROPHYSICAL JOURNAL, 858(1), 44 [10.3847/1538-4357/aabad0].

Chandra and XMM-Newton observations of the abell 3395/Abell 3391 intercluster filament

Bourdin H.;
2018-01-01

Abstract

We present Chandra and XMM-Newton X-ray observations of the Abell 3391/Abell 3395 intercluster filament. It has been suggested that the galaxy clusters Abell 3395, Abell 3391, and the galaxy group ESO-161 -IG 006 located between the two clusters, are in alignment along a large-scale intercluster filament. We find that the filament is aligned close to the plane of the sky, in contrast to previous results. We find a global projected filament temperature kT=4.45+0.89/-0.55 keV, electron density n = 1.08+0.06 ́ 10-4 cm−3, and M = 2.7+0.2 ́ -0.55 e -0.05 gas -0.1 1013 Me. The thermodynamic properties of the filament are consistent with that of the intracluster medium (ICM) of Abell 3395 and Abell 3391, suggesting that the filament emission is dominated by ICM gas that has been tidally disrupted during an early stage merger between these two clusters. We present temperature, density, entropy, and abundance profiles across the filament. We find that the galaxy group ESO-161 may be undergoing ram-pressure- stripping in the low-density environment at or near the virial radius of both clusters, due to its rapid motion through the filament.
2018
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/05 - ASTRONOMIA E ASTROFISICA
English
galaxies: clusters: intracluster medium ; large-scale structure of universe ; X-rays: galaxies: clusters
Alvarez, G.e., Randall, S.w., Bourdin, H., Jones, C., Holley-Bockelmann, K. (2018). Chandra and XMM-Newton observations of the abell 3395/Abell 3391 intercluster filament. THE ASTROPHYSICAL JOURNAL, 858(1), 44 [10.3847/1538-4357/aabad0].
Alvarez, Ge; Randall, Sw; Bourdin, H; Jones, C; Holley-Bockelmann, K
Articolo su rivista
File in questo prodotto:
File Dimensione Formato  
Alvarez_2018.pdf

solo utenti autorizzati

Tipologia: Versione Editoriale (PDF)
Licenza: Copyright dell'editore
Dimensione 2.5 MB
Formato Adobe PDF
2.5 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/264615
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 23
social impact