| Zugriffsnummer | 56842 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Laboratory characterization of iLocater |
| Autor(in); Institution |
Tala Pinto, Marcelo; Department of Astronomy, The Ohio State Univ., Columbus, Ohio, USA
Johnson, Marshall C.; Department of Astronomy, The Ohio State Univ., Columbus, Ohio, USA
Brady, Julia; Department of Astronomy, The Ohio State Univ., Columbus, Ohio, USA
Lesley-Saldaña, Xavier; Department of Astronomy, The Ohio State Univ., Columbus, Ohio, USA; Center for Cosmology and AstroParticle Physics, The Ohio State University, Ohio, USA
Crass, Jonathan; Department of Astronomy, The Ohio State Univ., Columbus, Ohio, USA
Renshaw, Allie; Department of Astronomy, The Ohio State Univ., Columbus, Ohio, USA
Engelman, Michael; Department of Astronomy, The Ohio State Univ., Columbus, Ohio, USA
Sands, Brian; University of Notre Dame, Department of Physics and Astronomy, Notre Dame, IN, USA
Pappalardo, Daniel; Department of Astronomy, The Ohio State Univ., Columbus, Ohio, USA
Schwab, Christian; School of Mathematical and Physical Sciences, Macquarie University, North Ryde, NSW, AUSTRALIA
Stürmer, Julian; Landessternwarte, Zentrum für Astronomie der Universität Heidelberg, Heidelberg, GERMANY
Zielinski-Nicolson, Dane; School of Mathematical and Physical Sciences, Macquarie University, North Ryde, NSW, AUSTRALIA
Letchev, Stanimir; Max Planck Institute for Astronomy, Heidelberg, GERMANY
Castro, Matheus J.; Landessternwarte, Zentrum für Astronomie der Universität Heidelberg, Heidelberg, GERMANY; Fakultät für Physik und Astronomie, Universität Heidelberg, Heidelberg, GERMANY
Legero, Thomas; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Kitzler, Ondrej; School of Mathematical and Physical Sciences, Macquarie University, North Ryde, NSW, AUSTRALIS
Pember, Jacob; Max Planck Institute for Astronomy, Heidelberg, GERMANY
Pogge, Richard; Department of Astronomy, The Ohio State University, Columbus, OH, USA; Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, OH, USA
Crepp, Justin R.; University of Notre Dame, Department of Physics and Astronomy, Notre Dame, IN, USA
Bechter, Andrew; University of Notre Dame, Department of Physics and Astronomy, Notre Dame, IN, USA
Bechter, Eric; University of Notre Dame, Department of Physics and Astronomy, Notre Dame, IN, USA
|
| Quelle/Jahr | Ground-based and Airborne Instrumentation for Astronomy XI: 14149 (2026), 141494T-1 - 141494T-9 |
| Schriftenreihe | Proceedings of SPIE: 14149 |
| DOI | |
| URL | |
| Verlag | Bellingham, Wash.: SPIE |
| Konferenzangaben | SPIE Astronomical Telescopes + Instrumentation, Copenhagen, 5-10, July, 2026, Denmark |
| Freie Schlagworte | high-resolution spectroscopy ; near-infrared spectrograph ; radial velocity instrumentation ; optical alignment |
| Zusammenfassung | iLocater is a diffraction-limited, fiber-fed spectrograph designed for the Large Binocular Telescope (LBT), which targets high-precision radial velocity measurements in the near-infrared. Prior to deployment, comprehensive laboratory characterization was essential to validate instrument performance and inform alignment strategies. This paper presents results from four key areas of lab characterization: (1) adjustment and optimization of detector orientation to optimize spectrum alignment with the detector pixel grid across the focal plane; (2) the design and installation of a LED illumination source to enable high-fidelity flat-fields; (3) a model-based focusing methodology using OpticStudio image simulations to optimize the optical alignment of the spectrograph; and (4) assessment of instrument mechanical and optical stability under laboratory conditions. Together, these efforts established baseline performance metrics and demonstrated instrument readiness for delivery and on-sky commissioning. |
Zitierung
Tala Pinto, M., Johnson, M. C., Brady, J., Lesley-Saldaña, X., Crass, J., Renshaw, A., Engelman, M., Sands, B., Pappalardo, D., Schwab, C., Stürmer, J., Zielinski-Nicolson, D., Letchev, S., Castro, M. J., Legero, T., Kitzler, O., Pember, J., Pogge, R., Crepp, J. R., Bechter, A., & Bechter, E. (2026). Laboratory characterization of iLocater. SPIE Astronomical Telescopes + Instrumentation, Copenhagen, 5-10, July, 2026, Denmark. https://doi.org/10.1117/12.3105380