The Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic
Measurements of redshifted 21-cm emission of neutral hydrogen at <30 MHz have the potential to probe the cosmic "dark ages," a period of the universe's history that remains unobserved to date. Observations at these frequencies are exceptionally challenging because of bright Galacti...
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ftdatacite:10.48550/arxiv.2008.12208 2023-05-15T13:45:08+02:00 The Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic Chiang, H. C. Dyson, T. Egan, E. Eyono, S. Ghazi, N. Hickish, J. Jauregui-Garcia, J. M. Manukha, V. Menard, T. Moso, T. Peterson, J. Philip, L. Sievers, J. L. Tartakovsky, S. 2020 https://dx.doi.org/10.48550/arxiv.2008.12208 https://arxiv.org/abs/2008.12208 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Instrumentation and Methods for Astrophysics astro-ph.IM Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences Article CreativeWork article Preprint 2020 ftdatacite https://doi.org/10.48550/arxiv.2008.12208 2022-03-10T15:52:11Z Measurements of redshifted 21-cm emission of neutral hydrogen at <30 MHz have the potential to probe the cosmic "dark ages," a period of the universe's history that remains unobserved to date. Observations at these frequencies are exceptionally challenging because of bright Galactic foregrounds, ionospheric contamination, and terrestrial radio-frequency interference. Very few sky maps exist at <30 MHz, and most have modest resolution. We introduce the Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic (ALBATROS), a new experiment that aims to image low-frequency Galactic emission with an order-of-magnitude improvement in resolution over existing data. The ALBATROS array will consist of antenna stations that operate autonomously, each recording baseband data that will be interferometrically combined offline. The array will be installed on Marion Island and will ultimately comprise 10 stations, with an operating frequency range of 1.2-125 MHz and maximum baseline lengths of ~20 km. We present the ALBATROS instrument design and discuss pathfinder observations that were taken from Marion Island during 2018-2019. : Accepted for publication in the Journal of Astronomical Instrumentation Article in Journal/Newspaper Antarc* Antarctic Marion Island DataCite Metadata Store (German National Library of Science and Technology) Antarctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Instrumentation and Methods for Astrophysics astro-ph.IM Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
spellingShingle |
Instrumentation and Methods for Astrophysics astro-ph.IM Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences Chiang, H. C. Dyson, T. Egan, E. Eyono, S. Ghazi, N. Hickish, J. Jauregui-Garcia, J. M. Manukha, V. Menard, T. Moso, T. Peterson, J. Philip, L. Sievers, J. L. Tartakovsky, S. The Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic |
topic_facet |
Instrumentation and Methods for Astrophysics astro-ph.IM Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
description |
Measurements of redshifted 21-cm emission of neutral hydrogen at <30 MHz have the potential to probe the cosmic "dark ages," a period of the universe's history that remains unobserved to date. Observations at these frequencies are exceptionally challenging because of bright Galactic foregrounds, ionospheric contamination, and terrestrial radio-frequency interference. Very few sky maps exist at <30 MHz, and most have modest resolution. We introduce the Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic (ALBATROS), a new experiment that aims to image low-frequency Galactic emission with an order-of-magnitude improvement in resolution over existing data. The ALBATROS array will consist of antenna stations that operate autonomously, each recording baseband data that will be interferometrically combined offline. The array will be installed on Marion Island and will ultimately comprise 10 stations, with an operating frequency range of 1.2-125 MHz and maximum baseline lengths of ~20 km. We present the ALBATROS instrument design and discuss pathfinder observations that were taken from Marion Island during 2018-2019. : Accepted for publication in the Journal of Astronomical Instrumentation |
format |
Article in Journal/Newspaper |
author |
Chiang, H. C. Dyson, T. Egan, E. Eyono, S. Ghazi, N. Hickish, J. Jauregui-Garcia, J. M. Manukha, V. Menard, T. Moso, T. Peterson, J. Philip, L. Sievers, J. L. Tartakovsky, S. |
author_facet |
Chiang, H. C. Dyson, T. Egan, E. Eyono, S. Ghazi, N. Hickish, J. Jauregui-Garcia, J. M. Manukha, V. Menard, T. Moso, T. Peterson, J. Philip, L. Sievers, J. L. Tartakovsky, S. |
author_sort |
Chiang, H. C. |
title |
The Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic |
title_short |
The Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic |
title_full |
The Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic |
title_fullStr |
The Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic |
title_full_unstemmed |
The Array of Long Baseline Antennas for Taking Radio Observations from the Sub-Antarctic |
title_sort |
array of long baseline antennas for taking radio observations from the sub-antarctic |
publisher |
arXiv |
publishDate |
2020 |
url |
https://dx.doi.org/10.48550/arxiv.2008.12208 https://arxiv.org/abs/2008.12208 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Marion Island |
genre_facet |
Antarc* Antarctic Marion Island |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.2008.12208 |
_version_ |
1766213680435822592 |