English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 Local TagsRelease HistoryDetailsSummary
  Wide-field Optical Spectroscopy of Abell 133: A Search for Filaments Reported in X-Ray Observations

Connor, T., Kelson, D. D., Mulchaey, J., Vikhlinin, A., Patel, S. G., Balogh, M. L., et al. (2018). Wide-field Optical Spectroscopy of Abell 133: A Search for Filaments Reported in X-Ray Observations. The Astrophysical Journal, 867.

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://hdl.handle.net/21.11116/0000-0005-CE44-7 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-CE45-6
Genre: Journal Article

Files

show Files

Locators

show
hide
Locator:
https://ui.adsabs.harvard.edu/abs/2018ApJ...867...25C (Any fulltext)
Description:
-
OA-Status:

Creators

show
hide
 Creators:
Connor, Thomas1, Author
Kelson, Daniel D.1, Author
Mulchaey, John1, Author
Vikhlinin, Alexey1, Author
Patel, Shannon G.1, Author
Balogh, Michael L.1, Author
Joshi, Gandhali1, Author
Kraft, Ralph1, Author
Nagai, Daisuke1, Author
Starikova, Svetlana1, Author
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

Content

show
hide
Free keywords: galaxies: clusters: individual: Abell 133 large-scale structure of universe X-rays: galaxies: clusters Astrophysics - Astrophysics of Galaxies Astrophysics - High Energy Astrophysical Phenomena
 Abstract: Filaments of the cosmic web have long been associated with the threadlike structures seen in galaxy redshift surveys. However, despite their baryon content being dominated by hot gas, these filaments have been an elusive target for X-ray observations. Recently, detections of filaments in very deep (2.4 Ms) observations with Chandra were reported around Abell 133 (z = 0.0559). To verify these claims, we conducted a multiobject spectrographic campaign on the Baade 6.5 m telescope around Abell 133; this resulted in a catalog of ̃3000 new redshift measurements, of which 254 are of galaxies near the cluster. We investigate the kinematic state of Abell 133 and identify the physical locations of filamentary structure in the galaxy distribution. Contrary to previous studies, we see no evidence that Abell 133 is dynamically disturbed; we reject the hypothesis that there is a kinematically distinct subgroup (p = 0.28) and find no velocity offset between the central galaxy and the cluster ({Z}score}={0.041}-0.106+0.111). The spatial distribution of galaxies traces the X-ray filaments, as confirmed by angular cross-correlation with a significance of ̃5σ. A similar agreement is found in the angular density distribution, where two X-ray structures have corresponding galaxy enhancements. We also identify filaments in the large-scale structure of galaxies; these filaments approach the cluster from the direction the X-ray structures are seen. While more members between R 200 and 2 × R 200 are required to clarify which large-scale filaments connect to the X-ray gas, we argue that this is compelling evidence that the X-ray emission is indeed associated with cosmic filaments.

Details

show
hide
Language(s):
 Dates: 2018
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The Astrophysical Journal
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 867 Sequence Number: - Start / End Page: - Identifier: -