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Arcus: the x-ray grating spectrometer explorer

Smith, R. K. and Madsen, K. K. (2016) Arcus: the x-ray grating spectrometer explorer. In: Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray. Proceedings of SPIE. No.9905. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 99054M. ISBN 978-1-5106-0189-5.

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Arcus will be proposed to the NASA Explorer program as a free-flying satellite mission that will enable high-resolution soft X-ray spectroscopy (8-50) with unprecedented sensitivity – effective areas of >500 sq cm and spectral resolution >2500. The Arcus key science goals are (1) to determine how baryons cycle in and out of galaxies by measuring the effects of structure formation imprinted upon the hot gas that is predicted to lie in extended halos around galaxies, groups, and clusters, (2) to determine how black holes influence their surroundings by tracing the propagation of out-flowing mass, energy and momentum from the vicinity of the black hole out to large scales and (3) to understand how accretion forms and evolves stars and circumstellar disks by observing hot infalling and outflowing gas in these systems. Arcus relies upon grazing-incidence silicon pore X-ray optics with the same 12m focal length (achieved using an extendable optical bench) that will be used for the ESA Athena mission. The focused X-rays from these optics will then be diffracted by high-efficiency off-plane reflection gratings that have already been demonstrated on sub-orbital rocket flights, imaging the results with flight-proven CCD detectors and electronics. The power and telemetry requirements on the spacecraft are modest. The majority of mission operations will not be complex, as most observations will be long (~100 ksec), uninterrupted, and pre-planned, although there will be limited capabilities to observe targets of opportunity, such as tidal disruption events or supernovae with a 3-5 day turnaround. After the end of prime science, we plan to allow guest observations to maximize the science return of Arcus to the community.

Item Type:Book Section
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Madsen, K. K.0000-0003-1252-4891
Additional Information:© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE).
Group:Space Radiation Laboratory
Subject Keywords:Gratings, X-rays: spectroscopy, Instrumentation
Series Name:Proceedings of SPIE
Issue or Number:9905
Record Number:CaltechAUTHORS:20170119-083030222
Persistent URL:
Official Citation:R. K. Smith ; M. H. Abraham ; R. Allured ; M. Bautz ; J. Bookbinder ; J. N. Bregman ; L. Brenneman ; N. S. Brickhouse ; D. N. Burrows ; V. Burwitz ; R. Carvalho ; P. N. Cheimets ; E. Costantini ; S. Dawson ; C. DeRoo ; A. Falcone ; A. R. Foster ; C. E. Grant ; R. K. Heilmann ; E. Hertz ; B. Hine ; D. Huenemoerder ; J. S. Kaastra ; K. K. Madsen ; R. L. McEntaffer ; E. D. Miller ; J. Miller ; E. Morse ; R. Mushotzky ; K. Nandra ; M. Nowak ; F. Paerels ; R. Petre ; L. Plice ; K. Poppenhaeger ; A. Ptak ; P. Reid ; J. Sanders ; M. L. Schattenburg ; N. Schulz ; A. Smale ; P. Temi ; L. Valencic ; S. Walker ; R. Willingale ; J. Wilms ; S. J. Wolk; Arcus: the x-ray grating spectrometer explorer. Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99054M (July 18, 2016); doi:10.1117/12.2231778.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:73543
Deposited By: Ruth Sustaita
Deposited On:19 Jan 2017 18:55
Last Modified:03 Oct 2019 16:28

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