SOXS NIR: Optomechanical integration and alignment, optical performance verification before full instrument assembly

M. Genoni, M. Aliverti, G. Pariani, L. Oggioni, F. Vitali, F. D'Alessio, P. D'Avanzo, S. Campana, M. Munari, R. Zanmar Sanchez, A. Scaudo, M. Landoni, D. Young, S. Scuderi, P. Schipani, M. Riva, R. Claudi, K. Radhakrishnan, F. Battaini, A. RubinA. Baruffolo, G. Capasso, R. Cosentino, O. Hershko, H. Kuncarayakti, G. Pignata, S. Ben-Ami, A. Brucalassi, J. Achrén, J. A. Araiza-Duran, I. Arcavi, L. Asquini, R. Bruch, E. Cappellaro, M. Colapietro, M. Della Valle, M. De Pascale, R. Di Benedetto, S. D'Orsi, A. Gal-Yam, M. Hernandez Diaz, J. Kotilainen, G. Li Causi, L. Marty, S. Mattila, M. Rappaport, D. Ricci, B. Salasnich, S. Smartt, M. Stritzinger, H. Ventura

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents the opto-mechanical integration and alignment, functional and optical performance verification of the NIR arm of Son Of X-Shooter (SOXS) instrument. SOXS will be a single object spectroscopic facility for the ESO-NTT 3.6-m telescope, made by two arms high efficiency spectrographs, able to cover the spectral range 350-2050 nm with a mean resolving power R≈4500. In particular the NIR arm is a cryogenic echelle cross-dispersed spectrograph spanning the 780-2050 nm range. We describe the integration and alignment method performed to assemble the different optomechanical elements and their installation on the NIR vacuum vessel, which mostly relies on mechanical characterization. The tests done to assess the image quality, linear dispersion and orders trace in laboratory conditions are summarized. The full optical performance verification, namely echellogram format, image quality and resulting spectral resolving power in the whole NIR arm (optical path and science detector) is detailed. Such verification is one of the most relevant prerequisites for the subsequent full instrument assembly and provisional acceptance in Europe milestone, foreseen in 2024.

Original languageEnglish
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy X
EditorsJulia J. Bryant, Kentaro Motohara, Joel R. Vernet
PublisherSPIE
ISBN (Electronic)9781510675155
DOIs
StatePublished - 2024
EventGround-Based and Airborne Instrumentation for Astronomy X 2024 - Yokohama, Japan
Duration: 16 Jun 202421 Jun 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13096

Conference

ConferenceGround-Based and Airborne Instrumentation for Astronomy X 2024
Country/TerritoryJapan
CityYokohama
Period16/06/2421/06/24

Keywords

  • ESO-NTT telescope
  • Echelle cross-dispersed spectrographs
  • NIR spectrographs
  • SOXS
  • Spectrographs AIT
  • optical performance verification

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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