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pro vyhledávání: '"Bang, D"'
Autor:
Nhan, Bang D., De Pree, Christopher G., Iverson, Matt, Gregory, Brenne, Dueri, Daniel, Beasley, Anthony, Schepis, Brian
NRAO and SpaceX have been engaged in coordinated testing efforts since Fall 2021, including conducting experiments on different interference avoidance schemes for the Karl G. Jansky Very Large Array (VLA) in New Mexico, and the Green Bank Telescope (
Externí odkaz:
http://arxiv.org/abs/2407.21675
Autor:
Kim, Honggeun, Kern, Nicholas S., Hewitt, Jacqueline N., Nhan, Bang D., Dillon, Joshua S., Acedo, Eloy de Lera, Dynes, Scott B. C., Mahesh, Nivedita, Fagnoni, Nicolas, DeBoer, David R.
One key challenge in detecting 21 cm cosmological signal at z > 6 is to separate the cosmological signal from foreground emission. This can be studied in a power spectrum space where the foreground is confined to low delay modes whereas the cosmologi
Externí odkaz:
http://arxiv.org/abs/2307.12826
Autor:
Bassett, Neil, Rapetti, David, Nhan, Bang D., Page, Brent, Burns, Jack O., Pulupa, Marc, Bale, Stuart D.
We present a Bayesian analysis of data from the FIELDS instrument on board the Parker Solar Probe (PSP) spacecraft with the aim of constraining low frequency ($\lesssim$ 6 MHz) sky in preparation for several upcoming lunar-based experiments. We utili
Externí odkaz:
http://arxiv.org/abs/2301.09612
Autor:
Kim, Honggeun, Nhan, Bang D., Hewitt, Jacqueline N., Kern, Nicholas S., Dillon, Joshua S., Acedo, Eloy de Lera, Dynes, Scott, Mahesh, Nivedita, Fagnoni, Nicolas, DeBoer, David R.
Detecting cosmological signals from the Epoch of Reionization (EoR) requires high-precision calibration to isolate the cosmological signals from foreground emission. In radio interferometery, perturbed primary beams of antenna elements can disrupt th
Externí odkaz:
http://arxiv.org/abs/2210.16421
Autor:
Bassett, Neil, Rapetti, David, Tauscher, Keith, Nhan, Bang D., Bordenave, David D., Hibbard, Joshua J., Burns, Jack O.
We present an investigation of the horizon and its effect on global 21-cm observations and analysis. We find that the horizon cannot be ignored when modeling low frequency observations. Even if the sky and antenna beam are known exactly, forward mode
Externí odkaz:
http://arxiv.org/abs/2106.02153
Autor:
Tauscher, Keith, Rapetti, David, Nhan, Bang D., Handy, Alec, Bassett, Neil, Hibbard, Joshua, Bordenave, David, Bradley, Richard F., Burns, Jack O.
All 21-cm signal experiments rely on electronic receivers that affect the data via both multiplicative and additive biases through the receiver's gain and noise temperature. While experiments attempt to remove these biases, the residuals of their imp
Externí odkaz:
http://arxiv.org/abs/2105.01672
Publikováno v:
In Materials Today Nano August 2023 23
Autor:
Nhan, Bang D., Bordenave, David D., Bradley, Richard F., Burns, Jack O., Tauscher, Keith, Rapetti, David, Klima, Patricia J.
Detecting the cosmological sky-averaged (global) 21 cm signal as a function of observed frequency will provide a powerful tool to study the ionization and thermal history of the intergalactic medium (IGM) in the early Universe ($\sim$ 400 million yea
Externí odkaz:
http://arxiv.org/abs/1811.04917
Publikováno v:
In European Journal of Mechanics / B Fluids May-June 2022 93:13-28
Publikováno v:
In Computers and Education: Artificial Intelligence 2022 3