Optical design of the EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM)

Essinger-Hileman, Thomas, Oxholm, Trevor, Siebert, Gage, Ade, Peter ORCID: https://orcid.org/0000-0002-5127-0401, Anderson, Christopher, Barlis, Alyssa, Barrentine, Emily, Beeman, Jeffrey, Bellis, Nicholas, Breysse, Patrick, Bolatto, Alberto, Bulcha, Berhanu, Cataldo, Giuseppe, Connors, Jake, Cursey, Paul, Ehsan, Negar, Fernandez, Lee-Roger, Glenn, Jason, Golec, Joseph, Hays-Wehle, James, Hess, Larry, Jahromi, Amir, Kimball, Mark, Kogut, Alan, Lowe, Luke, Mauskopf, Philip, McMahon, Jeffrey, Mirzaei, Mona, Moseley, Harvey, Mugge-Durum, Jonas, Moroozian, Omid, Pen, Ue-Li, Pullen, Anthony, Rodriquez, Samelys, Shire, Konrad, Sinclair, Adrian, Somerville, Rachel, Stevenson, Thomas, Switzer, Eric, Timbie, Peter, Tucker, Carole ORCID: https://orcid.org/0000-0002-1851-3918, Visbal, Eli, Volpert, Carolyn, Wollack, Edward and Yang, Shenggi 2020. Optical design of the EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM). Presented at: SPIE Astronomical Telescopes + Instrumentation 2020, Virtual, 14-18 December 2020. Proceedings Volume 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X. , vol.11453 SPIE, 114530H. 10.1117/12.2576254

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Abstract

This work describes the optical design of the EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM). EXCLAIM is a balloon-borne telescope that will measure integrated line emission from carbon monoxide (CO) at redshifts z<1 and ionized carbon ([CII]) at redshifts z = 2.5-3.5 to probe star formation over cosmic time in cross-correlation with galaxy redshift surveys. The EXCLAIM instrument will observe at frequencies of 420--540 GHz using six microfabricated silicon integrated spectrometers with spectral resolving power R = 512 coupled to kinetic inductance detectors (KIDs). A completely cryogenic telescope cooled to a temperature below 5 K provides low-background observations between narrow atmospheric lines in the stratosphere. Off-axis reflective optics use a 90-cm primary mirror to provide 4.2' full-width at half-maximum (FWHM) resolution at the center of the EXCLAIM band over a field of view of 22.5'....

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Physics and Astronomy
Publisher:	SPIE
Last Modified:	20 Apr 2023 15:45
URI:	https://orca.cardiff.ac.uk/id/eprint/156746

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