Chandra View of the Warm-hot Intergalactic Medium toward 1ES 1553+113: Absorption-line Detections and Identifications. I.

F. Nicastro, M. Elvis, Y. Krongold, S. Mathur, A. Gupta, C. Danforth, X. Barcons, S. Borgani, E. Branchini, R. Cen, R. Davé, J. Kaastra, F. Paerels, L. Piro, J. M. Shull, Y. Takei, L. Zappacosta

Research output: Contribution to journalArticlepeer-review

Abstract

We present the first results from our pilot 500 ks Chandra Low Energy Transmission Grating Large Program observation of the soft X-ray brightest source in the z >~ 0.4 sky, the blazar 1ES 1553+113, aimed to secure the first uncontroversial detections of the missing baryons in the X-rays. We identify a total of 11 possible absorption lines, with single-line statistical significances between 2.2σ and 4.1σ. Six of these lines are detected at high single-line statistical significance (3.6
Original languageEnglish
Pages (from-to)90
JournalAstrophysical Journal
Volume769
Issue number2
DOIs
Publication statusPublished - 7 May 2013

Keywords

  • atomic processes
  • intergalactic medium
  • line: identification
  • opacity
  • X-rays: general

Fingerprint Dive into the research topics of 'Chandra View of the Warm-hot Intergalactic Medium toward 1ES 1553+113: Absorption-line Detections and Identifications. I.'. Together they form a unique fingerprint.

Cite this