ABSTRACT We present a detailed study of the cosmic star formation history over 90 per cent time (0 ≲ z 4), using deep, radio continuum observations that probe activity independent dust. The Low Frequency Array Two Metre Sky Survey has imaged three well-studied extragalactic fields, Elais-N1, Boötes, and Lockman Hole, reaching $\sim 20\, \mu \rm {Jy\,beam^{-1}}$ rms sensitivity at $150\, {MHz}$....

The Milagro gamma-ray observatory employs a water Cherenkov detector to observe extensive air showers produced by high energy particles interacting in the Earth’s atmosphere. Milagro has a wide field of view (2 sr) and high duty cycle ( 90%) making it an ideal all-sky monitor of the northern hemisphere in the 100 GeV to 100 TeV energy range. More than 45 satellite-triggered gamma-ray bursts (GR...

We present a conceptual design for a new X-ray all sky monitor (ASM). Compared with previous ASMs, its salient features are: (1) it has a focusing capability that increases the signal to background ratio by a factor of 3; (2) it has a broad-band width: 200 eV to 15 keV; (3) it has a large X-ray collection area: ∼ 10 cm; (4) it has a duty cycle of nearly 100%, and (5) it can measure the position...

We present a conceptual design for a new X-ray all sky monitor (ASM). Compared with previous ASMs, its salient features are: (1) it has a focusing capability that increases the signal to background ratio by a factor of 3; (2) it has a broad-band width: 200 eV to 15 keV; (3) it has a large X-ray collection area: ∼ 10 cm; (4) it has a duty cycle of nearly 100%, and (5) it can measure the position...

An experimental investigation of ir sky radiance and radiance fluctuations in the 8-13-micro atmospheric window is reported. Measurements were made with ground-based, filtered bolometer detector radiometers under clear sky and cirrus overcast conditions. Sky radiance was measured very close to the limb of the sun to permit detection of the solar aureole caused by forward scattering by cirrus ic...

This study aims to determine whether there is an influence between the public relations campaign adapting new normal habits at HeHa Sky View Yogyakarta on interest of visiting tourists. type research quantitative explanatory with data collection techniques through questionnaires and interviews. While analysis technique used classical assumption test, simple linear regression partial coefficient...

[1] Clear sky downwelling longwave radiation (Rldc) and cloudy sky downwelling longwave radiation (Rld) formulas were tested across eleven sites in Florida. The Brunt equation, using air vapor pressure and temperature measurements, provides the best Rldc estimates with a root mean square error of less than around 12 Wm 2 across all sites. The Crawford and Duchon’s cloudiness factor with Brunt e...