Zobrazeno 1 - 7
of 7
pro vyhledávání: '"J. O. Burns"'
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 1, p 19 (2024)
Neural network (NN) emulators of the global 21 cm signal need an emulation error much less than the observational noise in order to be used to perform unbiased Bayesian parameter inference. To this end, we introduce 21cmLSTM —a long short-term memo
Externí odkaz:
https://doaj.org/article/6fc048fc7cf9432c8faf6c3b7ed3831f
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
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
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
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.
Autor:
R. A. White, J. O. Burns
Publikováno v:
The Astronomical Journal. 85:117
Autor:
J. O. Burns, S. A. Gregory
Publikováno v:
The Astrophysical Journal. 255:373