1 / 11

E-ELT-HIRES possible design and capabilities E. Oliva (INAF-Firenze) B. Delabre (ESO)

A very brief overview of what could be done within reasonable technological limits. Fundamental approach: highly modular concept. Modules and observing modes may be added or removed following a trade-off study between scientific priorities and technical/cost constraints.

bern
Download Presentation

E-ELT-HIRES possible design and capabilities E. Oliva (INAF-Firenze) B. Delabre (ESO)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A very brief overview of what could be done within reasonable technological limits. • Fundamental approach: highly modular concept. • Modules and observing modes may be added or removed following a trade-off study between scientific priorities and technical/cost constraints. E-ELT-HIRES possible design and capabilitiesE. Oliva (INAF-Firenze) B. Delabre (ESO) E. Oliva B. Delabre, ELT-HIRES, Cambridge

  2. 4 Independent fiber-fed spectrometer modules optimized over 4 spectral ranges (UB, VI, YH, K). • Different observing modes are obtained using different/independent groups of fibers feeding each spectrometer. • Observing mode is selected in the pre-slit section (fore-optics) of each spectrometer. • HR mode has fixed optics  stability OK E-ELT-HIRES possible scheme of instrument modules E. Oliva B. Delabre, ELT-HIRES, Cambridge

  3. E-ELT-HIRESpossible observing modes E. Oliva B. Delabre, ELT-HIRES, Cambridge

  4. MR-MOS mode for all modules/wavelengths. • Possibility of parallel modes, e.g. MR-MOS in optical while observing a red object with HRin IR. • HR2IFU/MOS only in IR where AO correction works. • Patrol field of MR-MOS mode: depends on where its fibers positioner is located. E-ELT-HIRES possible observing modes E. Oliva B. Delabre, ELT-HIRES, Cambridge

  5. E-ELT-HIRES possible scheme of instrument modules E. Oliva B. Delabre, ELT-HIRES, Cambridge

  6. E-ELT-HIRES possible scheme of one spec-module • HR mode has fixed optics  stability OK E. Oliva B. Delabre, ELT-HIRES, Cambridge

  7. E-ELT-HIRES possible slit illumination & observing modes E. Oliva B. Delabre, ELT-HIRES, Cambridge

  8. E-ELT-HIRES spectral format Slit too long for full spectral coverage with 1 channel E. Oliva B. Delabre, ELT-HIRES, Cambridge

  9. E-ELT-HIRES spectral format H 1.45-1.81 mm orders 74-93 J 1.16-1.38 mm orders 99-119 Y 0.97-1.14 mm orders 118-140 E. Oliva B. Delabre, ELT-HIRES, Cambridge

  10. E-ELT fundamental scaling laws MR-MOS with full spectral coverage  (too) many detectors E. Oliva B. Delabre, ELT-HIRES, Cambridge

  11. E-ELT fundamental scaling laws • Seeing limited spectroscopy challenging optics • cannot get longer slits in one spec-module • cannot fit more fibers/slices in one spec-module E. Oliva B. Delabre, ELT-HIRES, Cambridge

More Related