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VXMS: the VISTA extreme multiplex spectrograph

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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VXMS : the VISTA extreme multiplex spectrograph. / Content, Robert; Shanks, Tom; Sharples, Ray; Bramall, David; Percival, Will.

Ground-based and airborne instrumentation for astronomy IV. Bellingham : Society of Photographic Instrumentation Engineers, 2012. (Proceedings of SPIE; Vol. 8446).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harvard

Content, R, Shanks, T, Sharples, R, Bramall, D & Percival, W 2012, VXMS: the VISTA extreme multiplex spectrograph. in Ground-based and airborne instrumentation for astronomy IV. Proceedings of SPIE, vol. 8446, Society of Photographic Instrumentation Engineers, Bellingham, Ground-based and Airborne Instrumentation for Astronomy IV, Amsterdam, Netherlands, 1/07/12. https://doi.org/10.1117/12.927260

APA

Content, R., Shanks, T., Sharples, R., Bramall, D., & Percival, W. (2012). VXMS: the VISTA extreme multiplex spectrograph. In Ground-based and airborne instrumentation for astronomy IV (Proceedings of SPIE; Vol. 8446). Society of Photographic Instrumentation Engineers. https://doi.org/10.1117/12.927260

Vancouver

Content R, Shanks T, Sharples R, Bramall D, Percival W. VXMS: the VISTA extreme multiplex spectrograph. In Ground-based and airborne instrumentation for astronomy IV. Bellingham: Society of Photographic Instrumentation Engineers. 2012. (Proceedings of SPIE). https://doi.org/10.1117/12.927260

Author

Content, Robert ; Shanks, Tom ; Sharples, Ray ; Bramall, David ; Percival, Will. / VXMS : the VISTA extreme multiplex spectrograph. Ground-based and airborne instrumentation for astronomy IV. Bellingham : Society of Photographic Instrumentation Engineers, 2012. (Proceedings of SPIE).

Bibtex

@inproceedings{e686d8e95941412c9ee6f8d04e536cd6,
title = "VXMS: the VISTA extreme multiplex spectrograph",
abstract = "A study for a spectrograph delivering at least 10000 slits for galaxies and 20000 for stars over a 2.5 deg2 field have been completed as an answer to the call for proposal for future VISTA MOS instrumentation. In a single night, 65000 galaxy redshifts can be measured to z~0.7 and beyond for measuring the Baryon Acoustic Oscillation (BAO) scale and many other science goals. The design features ten cloned spectrographs which give a smaller total weight and length than a unique spectrograph to make it placable in the space envelope of the Cassegrain focus. The clones use a transparent design including a grism in which all optics are about the size or smaller than the clone rectangular subfield so that they can be tightly packed with little gaps between subfields. Only low cost glasses are used; the variations in chromatic aberrations between bands are compensated by changing a box containing the grism and two adjacent lenses. Two bands cover the 550nm to 900nm wavelength range at resolution of 1100 for blue end and 3000 for red end while another cover the Calcium triplet at 5000. An optional box does imaging but we studied different innovative methods for acquisition without imaging. A new 2.3° corrector was designed that places the pupil before and relatively near the focal plane which permits to give more space at the back of the spectrographs by placing them in a hedgehog configuration. An offaxis field lens in each spectrograph permits to control the pupil position. {\textcopyright} (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only. ",
keywords = "Multi-object spectrographs, cosmology, dark energy",
author = "Robert Content and Tom Shanks and Ray Sharples and David Bramall and Will Percival",
year = "2012",
doi = "10.1117/12.927260",
language = "English",
isbn = "9780819491473 ",
series = "Proceedings of SPIE",
publisher = "Society of Photographic Instrumentation Engineers",
booktitle = "Ground-based and airborne instrumentation for astronomy IV",
address = "United States",
note = "Ground-based and Airborne Instrumentation for Astronomy IV ; Conference date: 01-07-2012",

}

RIS

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T1 - VXMS

T2 - Ground-based and Airborne Instrumentation for Astronomy IV

AU - Content, Robert

AU - Shanks, Tom

AU - Sharples, Ray

AU - Bramall, David

AU - Percival, Will

PY - 2012

Y1 - 2012

N2 - A study for a spectrograph delivering at least 10000 slits for galaxies and 20000 for stars over a 2.5 deg2 field have been completed as an answer to the call for proposal for future VISTA MOS instrumentation. In a single night, 65000 galaxy redshifts can be measured to z~0.7 and beyond for measuring the Baryon Acoustic Oscillation (BAO) scale and many other science goals. The design features ten cloned spectrographs which give a smaller total weight and length than a unique spectrograph to make it placable in the space envelope of the Cassegrain focus. The clones use a transparent design including a grism in which all optics are about the size or smaller than the clone rectangular subfield so that they can be tightly packed with little gaps between subfields. Only low cost glasses are used; the variations in chromatic aberrations between bands are compensated by changing a box containing the grism and two adjacent lenses. Two bands cover the 550nm to 900nm wavelength range at resolution of 1100 for blue end and 3000 for red end while another cover the Calcium triplet at 5000. An optional box does imaging but we studied different innovative methods for acquisition without imaging. A new 2.3° corrector was designed that places the pupil before and relatively near the focal plane which permits to give more space at the back of the spectrographs by placing them in a hedgehog configuration. An offaxis field lens in each spectrograph permits to control the pupil position. © (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

AB - A study for a spectrograph delivering at least 10000 slits for galaxies and 20000 for stars over a 2.5 deg2 field have been completed as an answer to the call for proposal for future VISTA MOS instrumentation. In a single night, 65000 galaxy redshifts can be measured to z~0.7 and beyond for measuring the Baryon Acoustic Oscillation (BAO) scale and many other science goals. The design features ten cloned spectrographs which give a smaller total weight and length than a unique spectrograph to make it placable in the space envelope of the Cassegrain focus. The clones use a transparent design including a grism in which all optics are about the size or smaller than the clone rectangular subfield so that they can be tightly packed with little gaps between subfields. Only low cost glasses are used; the variations in chromatic aberrations between bands are compensated by changing a box containing the grism and two adjacent lenses. Two bands cover the 550nm to 900nm wavelength range at resolution of 1100 for blue end and 3000 for red end while another cover the Calcium triplet at 5000. An optional box does imaging but we studied different innovative methods for acquisition without imaging. A new 2.3° corrector was designed that places the pupil before and relatively near the focal plane which permits to give more space at the back of the spectrographs by placing them in a hedgehog configuration. An offaxis field lens in each spectrograph permits to control the pupil position. © (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

KW - Multi-object spectrographs

KW - cosmology

KW - dark energy

U2 - 10.1117/12.927260

DO - 10.1117/12.927260

M3 - Conference contribution

SN - 9780819491473

T3 - Proceedings of SPIE

BT - Ground-based and airborne instrumentation for astronomy IV

PB - Society of Photographic Instrumentation Engineers

CY - Bellingham

Y2 - 1 July 2012

ER -

ID: 1774509