Super DIOS mission for exploring "dark baryon"

We are studying an improved DIOS (Diffuse Intergalactic Oxygen Surveyor) program, Super DIOS, which is accepted for establishing the Research Group in ISAS/JAXA, for a launch year after 2030. The aim of Super DIOS is an X-ray quantitative exploration of ”dark baryon” over several scales from circumgalactic medium, cluster outskirt to warm-hot intergalactic medium along the Cosmic web with mapping redshifted emission lines from mainly oxygen and other ions. These observations play key roles for investigating the physical condition, such as the energy flow and metal circulation, of most baryons in the Universe. This mission will perform wide field X-ray spectroscopy with a field of view of about 0.5–1 degree and energy resolution of a few eV with TES microcalorimeter, but with much improved angular resolution of about 10–15 arcseconds. We will also consider including a small gamma-ray burst monitor and a fast repointing system. We will have an international collaboration with US and Europe for all the onboard instruments.

[1]  Oswald H. W. Siegmund,et al.  X-Ray and Gamma-Ray Instrumentation for Astronomy XI , 2000 .

[2]  Shouleh Nikzad,et al.  Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray , 2014 .

[3]  Yoshitomo Maeda,et al.  Development of the Four-stage X-ray telescope (FXT) for the DIOS mission , 2014, Astronomical Telescopes and Instrumentation.

[4]  Daniele Gallieni,et al.  ATHENA Telescope: alignment and integration of SPO mirror modules , 2019, International Conference on Space Optics.

[5]  M. Fukugita,et al.  THE COSMIC BARYON BUDGET , 1997, astro-ph/9712020.

[6]  Matteo Guainazzi,et al.  Hitomi (ASTRO-H) X-ray Astronomy Satellite , 2018 .

[7]  Yuzuru Tawara,et al.  The development of DIOS FXT (Four-stage X-ray Telescope) , 2010, Astronomical Telescopes + Instrumentation.

[8]  Matteo Guainazzi,et al.  Concept of the X-ray Astronomy Recovery Mission , 2018, Astronomical Telescopes + Instrumentation.

[9]  Yoh Takei,et al.  Cryogen free cooling of ASTRO-H SXS Helium Dewar from 300 K to 4 K , 2017 .

[10]  M. P. Bruijn,et al.  Low-noise microwave SQUID multiplexed readout of 38 x-ray transition-edge sensor microcalorimeters , 2020 .

[11]  P. Giommi,et al.  EDGE: Explorer of diffuse emission and gamma-ray burst explosions , 2007, SPIE Optical Engineering + Applications.

[12]  Didier Barret,et al.  Athena: ESA's X‐ray observatory for the late 2020s , 2017 .

[13]  Xin Xu,et al.  Finding cosmic voids and filament loops using topological data analysis , 2018, Astron. Comput..

[14]  Ny,et al.  Observations of the missing baryons in the warm–hot intergalactic medium , 2018, Nature.

[15]  R. Fujimoto,et al.  DIOS: the Diffuse Intergalactic Oxygen Surveyor , 2006, SPIE Astronomical Telescopes + Instrumentation.

[16]  Shinji Hara,et al.  Development of four-stage x-ray telescope for DIOS mission , 2012, Other Conferences.

[17]  Stephen A. Walker,et al.  Unveiling the Galaxy Cluster - Cosmic Web Connection with X-ray observations in the Next Decade , 2019, 1903.04550.

[18]  Annalisa Pillepich,et al.  First results from the IllustrisTNG simulations: the stellar mass content of groups and clusters of galaxies , 2017, 1707.03406.

[19]  P. Giommi,et al.  An unexpectedly rapid decline in the X-ray afterglow emission of long γ-ray bursts , 2005, Nature.

[20]  Ryuichi Fujimoto,et al.  Performance of the helium dewar and the cryocoolers of the Hitomi soft x-ray spectrometer , 2017 .

[21]  Jelle de Plaa,et al.  Voyage through the hidden physics of the cosmic web , 2019, Experimental Astronomy.

[22]  Maria Teresa Ceballos,et al.  The Athena X-ray Integral Field Unit (X-IFU) , 2016, Astronomical Telescopes + Instrumentation.

[23]  Christian Erd,et al.  In-orbit calibration of the XMM-Newton telescopes , 2000, SPIE Optics + Photonics.

[24]  L.-B. Chen,et al.  HUBS: Hot Universe Baryon Surveyor , 2020 .

[25]  R. Cen,et al.  Where Are the Baryons , 1998, astro-ph/9806281.

[26]  Bing Zhang.  Gamma-Ray Bursts in the Swift Era , 2007, astro-ph/0701520.

[27]  Mark Halpern,et al.  CMB-S4 Science Case, Reference Design, and Project Plan , 2019, 1907.04473.