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Akademický článek

Validating Posteriors Obtained by an Emulator When Jointly Fitting Mock Data of the Global 21 cm Signal and High-z Galaxy UV Luminosity Function

Autor: J. Dorigo Jones, D. Rapetti, J. Mirocha, J. J. Hibbard, J. O. Burns, N. Bassett

Publikováno v: The Astrophysical Journal, Vol 959, Iss 1, p 49 (2023)

Although neural-network-based emulators enable efficient parameter estimation in 21 cm cosmology, the accuracy of such constraints is poorly understood. We employ nested sampling to fit mock data of the global 21 cm signal and high- z galaxy ultravio

Externí odkaz: https://doaj.org/article/7fdfd042f8114ca7bf55d8281b6c549e

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Directions for Space-Based Low-Frequency Radio Astronomy: 2. Telescopes

Autor: Brian Dennison, K. W. Weiler, J. O. Burns, J. P. Basart, S. P. Castillo, B. M. McCune, Namir E. Kassim

Publikováno v: Radio Science. 32:265-275

Astronomical studies of celestial sources at low radio frequencies (0.3 to 30 MHz) lag far behind the investigations of celestial sources at high radio frequencies. In a companion paper [Basart et al., this issue] we discussed the need for low-freque

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b5982ae7478660e536e1dbb3205850b
https://doi.org/10.1029/96rs02408

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Directions for space-based low frequency radio astronomy: 1. System considerations

Autor: Brian Dennison, B. M. McCune, S. P. Castillo, J. O. Burns, Namir E. Kassim, J. P. Basart, K. W. Weiler

Publikováno v: Radio Science. 32:251-263

Although observations at the low end of the radio astronomy spectrum were the precursor of all work in radio astronomy, this portion of the spectrum has languished for decades while research at the upper radio frequencies has fluorished. Previous wor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c4922432e111420e1fd447fa742fa64
https://doi.org/10.1029/96rs02407

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Akademický článek

THE PHYSICS OF THE HYPERFINE STRUCTURE IN THE HYDROGEN ATOM. THE HYDROGEN λ = 21 cm LINE.

Autor: Kuzmak, A. R.¹ andrij.kuzmak@gmail.com

Publikováno v: Journal of Physical Studies. 2024, Vol. 28 Issue 3, p3901-1-3901-12. 12p.

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A plan for the development of lunar astronomy

Autor: D. L. Talent, T. L. Page, S. A. Stern, Faith Vilas, Mark V. Sykes, G. Snyder, J. O. Burns, H. J. Smith, M. Colavita

Publikováno v: AIP Conference Proceedings.

This is a report synthesizing discussions of the Astronomy/Astrophysics Definition Team at the Lunar Science Strategy Workshop for the Exploration and Development of the moon which was held at the NASA Johnson Space Center during August 15-16, 1989.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a15076d693af3f68545d069f23f1e05
https://doi.org/10.1063/1.39341

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