Now showing items 1-10 of 114
Geohab–the global ecology and oceanography of harmful algal blooms program: motivation, goals, and legacy
(The Oceanography Society, 2017-03-01)
In 2001, the first international research program focusing exclusively on harmful marine algae, GEOHAB (Global Ecology and Oceanography of Harmful Algal Blooms), was established by the HAB research community, under the ...
Multi-wavelength observations of the flaring gamma-ray blazar 3c 66a in 2008 october
(IOP Publishing, 2010-12-14)
The BL Lacertae object 3C 66A was detected in a flaring state by the Fermi Large Area Telescope (LAT) and VERITAS in 2008 October. In addition to these gamma-ray observations, F-GAMMA, GASP-WEBT, PAIRITEL, MDM, ATOM, Swift, ...
Fermilarge area telescope observations of markarian 421: the missing piece of its spectral energy distribution
(IOP Publishing, 2011-07-15)
We report on the gamma-ray activity of the high-synchrotron-peaked BL Lacertae object Markarian 421 (Mrk 421) during the first 1.5 years of Fermi operation, from 2008 August 5 to 2010 March 12. We find that the Large Area ...
Looking ahead: a profiling float micro-rosette
(The Oceanography Society, 2017-06-01)
Cohort randomised controlled trial of a multifaceted podiatry intervention for the prevention of falls in older people (the reform trial)
(Public Library of Science (PLoS), 2017-01-20)
Background Falls are a major cause of morbidity among older people. A multifaceted podiatry intervention may reduce the risk of falling. This study evaluated such an intervention. Design Pragmatic cohort randomised controlled ...
A search for spectral hysteresis and energy-dependent time lags from x-ray and tev gamma-ray observations of mrk 421
(American Astronomical Society, 2016-12-22)
Blazars are variable emitters across all wavelengths over a wide range of timescales, from months down to minutes. It is therefore essential to observe blazars simultaneously at different wavelengths, especially in the ...
Gamma-rays from the quasar pks 1441+25: story of an escape
(IOP Publishing, 2015-12-15)
Outbursts from gamma-ray quasars provide insights on the relativistic jets of active galactic nuclei and constraints on the diffuse radiation fields that fill the universe. The detection of significant emission above 100 ...
Multiwavelength observations of the blazar bl lacertae: a new fast tev gamma-ray flare
(American Astronomical Society, 2018-03-28)
Combined with measurements made by very-long-baseline interferometry, the observations of fast TeV gamma-ray flares probe the structure and emission mechanism of blazar jets. However, only a handful of such flares have ...
A luminous and isolated gamma-ray flare from the blazar b2 1215+30
(American Astronomical Society, 2017-02-21)
B2 1215+30 is a BL-Lac-type blazar that was first detected at TeV energies by the MAGIC atmospheric Cherenkov telescopes and subsequently confirmed by the Very Energetic Radiation Imaging Telescope Array System (VERITAS) ...
A strong limit on the very-high-energy emission from grb 150323a
(American Astronomical Society, 2018-04-10)
On 2015 March 23, the Very Energetic Radiation Imaging Telescope Array System (VERITAS) responded to a Swift-Burst Alert Telescope (BAT) detection of a gamma-ray burst, with observations beginning 270 s after the onset of ...