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 Tools annual

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 Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The Swift Gamma-ray Burst (GRB) observatory responds to GRB triggers withoptical observations in ~ 100 s, but cannot respond faster than ~ 60 s. Whilesome ground-based telescopes respond quickly, the number of sub-60 s detectionsremains small. In mid- to late-2013, the Ultra-Fast FlashObservatory-Pathfinder is to be launched on the Lomonosov spacecraft toinvestigate early optical GRB emission. This pathfinder mission is necessarilylimited in sensitivity and event rate; here we discuss a next generationrapid-response space observatory. We list science topics motivating ourinstruments, those that require rapid optical-IR GRB response, including: Asurvey of GRB rise shapes/times, measurements of optical bulk Lorentz factors,investigation of magnetic dominated (vs. non-magnetic) jet models, internal vs.external shock origin of prompt optical emission, the use of GRBs forcosmology, and dust evaporation in the GRB environment. We also address theimpacts of the characteristics of GRB observing on our instrument andobservatory design. We describe our instrument designs and choices for a nextgeneration observatory as a second instrument on a low-earth orbit spacecraft,with a 120 kg instrument mass budget. Restricted to relatively modest mass andpower, we find that a coded mask X-ray camera with 1024 cm2 of detector areacould rapidly locate about 64 GRB triggers/year. Responding to the locationsfrom the X-ray camera, a 30 cm aperture telescope with a beam-steering systemfor rapid (~ 1 s) response and a near-IR camera should detect ~ 29 GRB, givenSwift GRB properties. Am additional optical camera would give a broadbandoptical-IR slope, allowing dynamic measurement of dust extinction at thesource, for the first time.

A next generation Ultra-Fast Flash Observatory (UFFO-100) for IR/optical observations of the rise phase of gamma-ray bursts