Solar Wind Charge Exchange Contribution to the ROSAT All Sky Survey Maps

Y. Uprety (1, 2) , M. Chiao (3) , M. R. Collier (3) , T. Cravens (4) , M. Galeazzi (1) , Dimitra Koutroumpa (5) , K. Kuntz (6) , Rosine Lallement (7) , S. T. Lepri (8) , W. Liu (1) , D. Mccammon (9) , K. Morgan (9) , F. S. Porter (3) , K. Prasai (1, 10) , S. L. Snowden (3) , N. E. Thomas (3) , E. Ursino (1, 11) , B. M. Walsh (12)

1 Department of Physics [Coral Gables]
2 Department of Physics and Astronomy [Murfreesboro]
3 GSFC - NASA Goddard Space Flight Center
4 Department of Physics and Astronomy [Lawrence, Kansas]
5 HELIOS - LATMOS
6 Department of Physics and Astronomy [Baltimore]
7 GEPI - Galaxies, Etoiles, Physique, Instrumentation
8 AOSS - Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor]
9 Department of Physics [Madison]
10 Department of Physics and Engineering [Bakersfield]
11 Department of Physics [Grinnell]
12 Department of Mechanical Engineering [Boston]

DXL (Diffuse X-ray emission from the Local Galaxy) is a sounding rocket mission designed to estimate the contribution of solar wind charge eXchange (SWCX) to the diffuse X-ray background and to help determine the properties of the Local Hot Bubble. The detectors are large area thin-window proportional counters with a spectral response that is similar to that of the PSPC used in the ROSAT All Sky Survey (RASS). A direct comparison of DXL and RASS data for the same part of the sky viewed from quite different vantage points in the solar system, and the assumption of approximate isotropy for the solar wind, allowed us to quantify the SWCX contribution to all six RASS bands (R1–R7, excluding R3)

Domaines: Physique Atmosphérique et Océanique [physics.ao-ph]

Y. Uprety, M. Chiao, M. R. Collier, T. Cravens, M. Galeazzi, et al.. Solar Wind Charge Exchange Contribution to the ROSAT All Sky Survey Maps. The Astrophysical Journal, 2016, 829 (2), pp.83. ⟨10.3847/0004-637X/829/2/83⟩. ⟨insu-01378644⟩