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Arcus: The X-ray Grating Spectrometer Explorer

Smith, R. K. and Madsen, K. K. (2017) Arcus: The X-ray Grating Spectrometer Explorer. In: UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XX. Proceedings of SPIE. No.10397. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 103970Q. ISBN 978-1-5106-1252-5. https://resolver.caltech.edu/CaltechAUTHORS:20171221-130042990

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Abstract

Arcus, a Medium Explorer (MIDEX) mission, was selected by NASA for a Phase A study in August 2017. The observatory provides high-resolution soft X-ray spectroscopy in the 12-50Å bandpass with unprecedented sensitivity: effective areas of >450 cm^2 and spectral resolution >2500. The Arcus key science goals are (1) to measure the effects of structure formation imprinted upon the hot baryons that are predicted to lie in extended halos around galaxies, groups, and clusters, (2) to trace the propagation of outflowing mass, energy, and momentum from the vicinity of the black hole to extragalactic scales as a measure of their feedback and (3) to explore how stars, circumstellar disks and exoplanet atmospheres form and evolve. Arcus relies upon the same 12m focal length grazing-incidence silicon pore X-ray optics (SPO) that ESA has developed for the Athena mission; the focal length is achieved on orbit via an extendable optical bench. The focused X-rays from these optics are diffracted by high-efficiency Critical-Angle Transmission (CAT) gratings, and the results are imaged with flight-proven CCD detectors and electronics. The power and telemetry requirements on the spacecraft are modest. Mission operations are straightforward, as most observations will be long (~100 ksec), uninterrupted, and pre-planned, although there will be capabilities to observe sources such as tidal disruption events or supernovae with a ~3 day turnaround. Following the 2nd year of operation, Arcus will transition to a proposal-driven guest observatory facility.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2272818DOIArticle
ORCID:
AuthorORCID
Madsen, K. K.0000-0003-1252-4891
Alternate Title:Arcus: exploring the formation and evolution of clusters, galaxies, and stars
Additional Information:© 2017 SPIE. The research leading to these results has in part received funding from the Smithsonian Astrophysical Observatory and the European Union’s Horizon 2020 Program under the AHEAD project (grant agreement n. 654215). The Arcus team especially thanks the team at NASA’s Marshall Space Flight Center’s Stray Light Center for hosting the SPO and CAT testing, including substantial assistance with the data collection and analysis.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
Smithsonian Astrophysical ObservatoryUNSPECIFIED
European Research Council (ERC)654215
Subject Keywords:Gratings; X-rays: spectroscopy; Instrumentation
Series Name:Proceedings of SPIE
Issue or Number:10397
Record Number:CaltechAUTHORS:20171221-130042990
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20171221-130042990
Official Citation:R. K. Smith, M. Abraham, R. Allured, M. Bautz, J. Bookbinder, J. Bregman, L. Brenneman, N. S. Brickhouse, D. Burrows, V. Burwitz, P. N. Cheimets, E. Costantini, S. Dawson, C. DeRoo, A. Falcone, A. R. Foster, L. Gallo, C. E. Grant, H. M. Günther, R. K Heilmann, E. Hertz, B. Hine, D. Huenemoerder, J. S. Kaastra, I. Kreykenbohm, K. K. Madsen, R. McEntaffer, E. Miller, J. Miller, E. Morse, R. Mushotzky, K. Nandra, M. Nowak, F. Paerels, R. Petre, K. Poppenhaeger, A. Ptak, P. Reid, J. Sanders, M. Schattenburg, N. Schulz, A. Smale, P. Temi, L. Valencic, S. Walker, R. Willingale, J. Wilms, S. J. Wolk, "Arcus: exploring the formation and evolution of clusters, galaxies, and stars," Proc. SPIE 10397, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XX, 103970Q (29 August 2017)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84003
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Dec 2017 22:08
Last Modified:03 Oct 2019 19:13

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