UVIT data release version 7: Regenerated high-level UVIT data products

Title

UVIT data release version 7: Regenerated high-level UVIT data products

Creator

JOSEPH, PRAJWEL; TANDON, S.N.; GHOSH, S.K.; STALIN, C.S.

Description

Ultra-Violet Imaging Telescope (UVIT) on board AstroSat is an active telescope capable of high-resolution far-ultraviolet imaging (<1.5??) and low-resolution (?/???100) slitless spectroscopy with a field-of-view as large as ? 0.5?. Now almost a decade old, UVIT continues to be operational and generates valuable data for the scientific community. UVIT is also capable of near-ultraviolet imaging (<1.5??); however, the near-ultraviolet channel stopped working in August 2018 after providing data for nearly 3years. This paper gives an overview of the latest version (7.0.1) of the UVIT pipeline and UVIT data release version 7. The high-level products generated using pipeline versions having a major ver. no. 7 will be called UVIT data release version 7. The latest pipeline version overcomes two limitations of the previous version (6.3), namely: (a) inability to combine all episode-wise images; and (b) failure of the astrometry module in a large fraction of the observations. The procedures adopted to overcome these two limitations as well as a comparison of the performance of this new version over the previous one, are presented in this paper. The UVIT data release version 7 products are available at the Indian Space Science Data Center of the Indian Space Research Organization for archival and dissemination from 1 June 2024. New pipeline version is open source and made available on GitHub. Indian Academy of Sciences 2025.

Source

Journal of Astrophysics and Astronomy;Volume;46;Issue;2;Article No.;41;

Date

01-01-2025

Publisher

Springer

Subject

astrometry; methods: data analysis; techniques: image processing; Ultraviolet: general

Coverage

JOSEPH P., Indian Institute of Astrophysics, Bangalore, 560034, India, Department of Physics and Electronics, Christ University (deemed to be University), Bangalore, 560029, India; TANDON S.N., Inter-University Centre for Astronomy and Astrophysics, Pune, 411007, India; GHOSH S.K., Tata Institute of Fundamental Research, Mumbai, 400005, India; STALIN C.S., Indian Institute of Astrophysics, Bangalore, 560034, India

Rights

Restricted Access; Hardcopy may be available in the library

Relation

ISSN: 2506335;

Format

online

Language

English

Type

Article

Identifier

https://doi.org/10.1007/s12036-025-10069-5

https://www.scopus.com/pages/publications/105009537286?origin=resultslist