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 National Science Foundation (NSF) Astronomy Division's Portfolio Reviewof 2012 is no longer relevant to the Green Bank Telescope (GBT) of 2017 for twoprincipal reasons, one instrumental and the other astrophysical: 1) The GBT hasbegun significant operations in the 3mm band, giving it unrivaled capabilitiesfor spectroscopy and continuum studies over 67-116 GHz. It is now an instrumentthat is unique worldwide and is a critical complement to ALMA for the U.S.scientific community. These capabilities had not been implemented at the timeof the review. 2) The detection of gravitational radiation by LIGO in 2015places the GBT's work on pulsar observations of nano-Hz gravitational radiationat the forefront of modern astrophysics.  The Green Bank Telescope of 2017 is not the GBT that was reviewed by theEisenstein-Miller committee in 2012, a review that was specific to the NSFAstronomy portfolio. The GBT serves a wide spectrum of science areas includingphysics, chemistry, and planetary studies as well as astronomy. Besides itswell-documented intellectual merit, it thus has a significant broader impact.The GBT is making significance advances in our understanding of gravitationalwaves, the equation-of-state of nuclear matter, the mass of supermassive blackholes, the value of H0, and the physics of star-formation, all key sciencegoals for astronomy identified in a recent National Academy study "New Worlds,New Horizons: A Midterm Assessment". In the era of ALMA and LIGO, othercountries have bolstered their mm-wave and cm-wave facilities; it is criticalthat U.S. scientists have ready access to a large filled aperture to remain atthe forefront of research.

The National Science Foundation's AST Portfolio Review of 2012 is Not Relevant to the Green Bank Telescope of 2017: A White Paper