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Proceedings Paper

Arcus: exploring the formation and evolution of clusters, galaxies, and stars
Author(s): 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
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Paper 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 cm2 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.

Paper Details

Date Published: 29 August 2017
PDF: 11 pages
Proc. SPIE 10397, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XX, 103970Q (29 August 2017); doi: 10.1117/12.2272818
Show Author Affiliations
R. K. Smith, Smithsonian Astrophysical Observatory (United States)
M. Abraham, The Aerospace Corp. (United States)
R. Allured, Smithsonian Astrophysical Observatory (United States)
M. Bautz, Massachusetts Institute of Technology (United States)
J. Bookbinder, NASA Ames Research Ctr. (United States)
J. Bregman, Univ. of Michigan (United States)
L. Brenneman, Smithsonian Astrophysical Observatory (United States)
N. S. Brickhouse, Smithsonian Astrophysical Observatory (United States)
D. Burrows, The Pennsylvania State Univ. (United States)
V. Burwitz, Max-Planck-Institut für extraterrestrische Physik (Germany)
P. N. Cheimets, Smithsonian Astrophysical Observatory (United States)
E. Costantini, SRON Netherlands Institute for Space Research (Netherlands)
S. Dawson, NASA Ames Research Ctr. (United States)
C. DeRoo, Smithsonian Astrophysical Observatory (United States)
A. Falcone, The Pennsylvania State Univ. (United States)
A. R. Foster, Smithsonian Astrophysical Observatory (United States)
L. Gallo, Saint Mary's Univ. (Canada)
C. E. Grant, Massachusetts Institute of Technology (United States)
H. M. Günther, Massachusetts Institute of Technology (United States)
R. K Heilmann, Massachusetts Institute of Technology (United States)
E. Hertz, Smithsonian Astrophysical Observatory (United States)
B. Hine, NASA Ames Research Ctr. (United States)
D. Huenemoerder, Massachusetts Institute of Technology (United States)
J. S. Kaastra, SRON Netherlands Institute for Space Research (Netherlands)
I. Kreykenbohm, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
K. K. Madsen, California Institute of Technology (United States)
R. McEntaffer, The Pennsylvania State Univ. (United States)
E. Miller, Massachusetts Institute of Technology (United States)
J. Miller, Univ. of Michigan (United States)
E. Morse, Orbital ATK (United States)
R. Mushotzky, Univ. of Maryland, College Park (United States)
K. Nandra, Max-Planck-Institut für extraterrestrische Physik (Germany)
M. Nowak, Massachusetts Institute of Technology (United States)
F. Paerels, Columbia Univ. (United States)
R. Petre, NASA Goddard Space Flight Ctr. (United States)
K. Poppenhaeger, Queen’s Univ. Belfast (United Kingdom)
A. Ptak, NASA Goddard Space Flight Ctr. (United States)
P. Reid, Smithsonian Astrophysical Observatory (United States)
J. Sanders, Max-Planck-Institut für extraterrestrische Physik (Germany)
M. Schattenburg, Massachusetts Institute of Technology (United States)
N. Schulz, Massachusetts Institute of Technology (United States)
A. Smale, NASA Goddard Space Flight Ctr. (United States)
P. Temi, NASA Ames Research Ctr. (United States)
L. Valencic, Johns Hopkins Univ. (United States)
S. Walker, NASA Ames Research Ctr. (United States)
R. Willingale, Univ. of Leicester (United Kingdom)
J. Wilms, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
S. J. Wolk, Smithsonian Astrophysical Observatory (United States)


Published in SPIE Proceedings Vol. 10397:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XX
Oswald H. Siegmund, Editor(s)

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