English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present all the publicly available data, from optical/UV wavelengths(UVOT) to X-rays (XRT, BAT), obtained from Swift observations of the blazar PKS2155-304, performed in response to the rapid alert sent out after the strongTeV activity (up to 17 Crab flux level at E > 200 GeV) at the end of July 2006.The X-ray flux increased by a factor of 5 in the 0.3-10 keV energy band and bya factor of 1.5 at optical/UV wavelengths, with roughly one day of delay. Thecomparison of the spectral energy distribution built with dataquasi-simultaneous to the TeV detections shows an increase of the overallnormalization with respect to archival data, but only a small shift of thefrequency of the synchrotron peak that remains consistent with the valuesreported in past observations when the TeV activity was much weaker.Comment: 13 pages, 3 figures. ApJ Letters, accepted for publicatio

X-Ray/UV/Optical Follow-up of the Blazar PKS 2155-304 after the Giant TeV Flares of 2006 July