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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8211
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dc.contributor.authorSathyanarayana Rao, Mayuri-
dc.contributor.authorSingh, Saurabh-
dc.contributor.authorK.S., Srivani-
dc.contributor.authorB.S., Girish-
dc.contributor.authorSathish, Keerthipriya-
dc.contributor.authorR., Somashekar-
dc.contributor.authorAgaram, Raghunathan-
dc.contributor.authorK., Kavitha-
dc.contributor.authorVishwapriya, Gautam-
dc.contributor.authorAnand, Ashish-
dc.contributor.authorShankar N., Udaya-
dc.contributor.authorS., Seetha-
dc.date.accessioned2024-01-30T06:14:07Z-
dc.date.available2024-01-30T06:14:07Z-
dc.date.issued2023-09-08-
dc.identifier.citationExperimental Astronomy ,2023, Vol. 56,p741en_US
dc.identifier.issn15729508,-
dc.identifier.issn09226435-
dc.identifier.urihttp://hdl.handle.net/2289/8211-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en_US
dc.description.abstractPRATUSH – Probing ReionizATion of the Universe using Signal from Hydrogen – is a proposed cosmology experiment to detect the global red-shifted 21-cm signal from the Cosmic Dawn and Epoch of Reionization (CD/EoR). PRATUSH orbiting the Moon will seek to precisely measure the low-frequency radio sky-spectrum over 40 to 200 MHz. The scientific observations would be made in the radio-quiet region when in the farside of the Moon, and the data would be transmitted back to Earth when in the near-side. PRATUSH was proposed to the Indian Space Research Organization (ISRO) during a call for proposals in the announcement of opportunity for science payloads in 2018. PRATUSH is in the pre-project studies phase. Here we present a mission concept and baseline design of the proposed payload optimized to operate over the Cosmic Dawn signal band of 55 - 110 MHz. Starting with a description of the fundamental design principles followed, we discuss the PRATUSH baseline design and sensitivity. We further enumerate the challenges that are common to most PRATUSH like experiments, which have been proposed to seek a detection of the CD/EoR signal in orbit in the lunar farside. Due to the highly sensitive nature of the measurement, PRATUSH is designed to operate as a solo experiment with a dedicated spacecraft. Our simulations, assuming a mission lifetime of two years, estimate that PRATUSH would have the sensitivity required to detect the CD signal predicted by the standard models with varying degrees of confidence.A concept model of PRATUSH is under development, which is expected to lead to the engineering model followed by flight model subject to mission approval.en_US
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.relation.urihttp://adsabs.harvard.edu/abs/en_US
dc.relation.urihttp://arxiv.org/abs/en_US
dc.relation.urihttps://doi.org/10.1007/s10686-023-09909-5en_US
dc.rights2023, The Author(s)en_US
dc.subject(Cosmology:)dark agesen_US
dc.subjectReionizationen_US
dc.subjectFirst starsen_US
dc.subjectSpace vehicles:instrumentsen_US
dc.subjectTelescopesen_US
dc.subjectMethods: observationalen_US
dc.subjectInstrumentation: miscellaneousen_US
dc.titlePRATUSH experiment concept and design overviewen_US
dc.typeArticleen_US
Appears in Collections:Research Papers (A&A)

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