Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011head...12.3003v&link_type=abstract
American Astronomical Society, HEAD meeting #12, #30.03
Astronomy and Astrophysics
Astrophysics
Scientific paper
An X-ray telescope with sub-arcsec angular resolution and >104 cm2 effective area will trigger another revolution in high energy astrophysics. We are developing technologies which would make such a telescope possible: adjustable grazing incidence bimorph mirrors composed of thin glass or metal segments with a few micrometer layer of piezoelectric material deposited on the back surface. The piezo cells are used to correct mirror figure errors due to fabrication, mounting, gravity release, and thermal deformations. Supporting analytical studies show the feasibility of mirror control, and laboratory demonstrations have shown that displacements of sufficient amplitude can be produced to achieve the required correction.
The science topics for a high-resolution, large area X-ray telescope range from neutron star binary populations in the Milky Way and nearby galaxies to studies of diffuse baryons in the biggest objects in the Universe and in the warm-hot intergalactic medium. There will be a significant time span relative to the Chandra baseline for detailed observations of the expanding SNRs, reflection of the past activity of Sgr A* from surrounding molecular clouds, cooling of isolated neutron stars, etc. An exciting new frontier is observations of co-evolution of the supermassive black holes and their host galaxies across the peak in the cosmic star formation at z 3 and into the end of Dark Ages at z=6-10.
Bookbinder Jay
Brissenden Roger
Cotroneo J.
Davis Watson
Forman William R.
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