Monthly Notices of the Royal Astronomical Society· 2012Q1
The Sydney-AAO Multi-object Integral field spectrograph
- 572citations
- Q1SCImago
- 2012year
Short summary
The SAMI prototype spectrograph combines multi-object and integral field capabilities, deploying 13 fiber bundles across a 1-degree field of view to capture spatially resolved spectra of galaxies.
AI-generated from the title and abstract; the full text is not read.
Key points
- SAMI is a prototype wide-field spectrograph combining multi-object and integral field capabilities.
- It deploys 13 'hexabundle' fiber arrays, each with 61 fibers, over a 1-degree field of view.
- Each fiber core is 1.6 arcsec on the sky, and each hexabundle covers a 15 arcsec diameter.
- The system feeds the AAOmega spectrograph, offering resolutions from R≈1700-13000 across 3700-9500Å.
- First results are presented for galaxies at z≈0.05, with prospects for future surveys of 10^4-10^5 galaxies.
AI-generated from the title and abstract; the full text is not read.
Abstract
We demonstrate a novel technology that combines the power of the multi-object spectrograph with the spatial multiplex advantage of an integral field spectrograph (IFS). The Sydney-AAO (Australian Astronomical Observatory) Multi-object IFS (SAMI) is a prototype wide-field system at the Anglo-Australian Telescope (AAT) that allows 13 imaging fibre bundles ('hexabundles') to be deployed over a 1-degree diameter field of view. Each hexabundle comprises 61 lightly fused multi-mode fibres with reduced cladding and yields a 75 per cent filling factor. Each fibre core diameter subtends 1.6 arcsec on the sky and each hexabundle has a field of view of 15 arcsec diameter. The fibres are fed to the flexible AAOmega double-beam spectrograph, which can be used at a range of spectral resolutions (R=λ/δλ≈ 1700-13000) over the optical spectrum (3700-9500Å). We present the first spectroscopic results obtained with SAMI for a sample of galaxies at zδ 0.05. We discuss the prospects of implementing hexabundles at a much higher multiplex over wider fields of view in order to carry out spatially resolved spectroscopic surveys of 104-105 galaxies.
The authors' abstract, as published at the source. Monthly Notices of the Royal Astronomical Society, 2012 · DOI ↗
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Field: Instrumentation
InstrumentationPhysics and Astronomy