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The Structure of the Local Hot BubbleDiffuse X-rays from the Local Galaxy (DXL) is a sounding rocket mission designed to quantify and characterize the contribution of Solar Wind Charge eXchange (SWCX) to the Diffuse X-ray Background and study the properties of the Local Hot Bubble (LHB). Based on the results from the DXL mission, we quantified and removed the contribution of SWCX to the diffuse X-ray background measured by the ROSAT All Sky Survey. The cleaned maps were used to investigate the physical properties of the LHB. Assuming thermal ionization equilibrium, we measured a highly uniform temperature distributed around kT = 0.097 keV +/- 0.013 keV (FWHM) +/- 0.006 keV(systematic). We also generated a thermal emission measure map and used it to characterize the three-dimensional (3D) structure of the LHB, which we found to be in good agreement with the structure of the local cavity measured from dust and gas.
Document ID
20170004859
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Liu, W.
(Miami Univ. Coral Gables, FL, United States)
Chiao, M.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Collier, M. R.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Cravens, T.
(Kansas Univ. Lawrence, KS, United States)
Galeazzi, M.
(Miami Univ. Coral Gables, FL, United States)
Koutroumpa, D.
(Universite de Versailles Saint-Quentin France)
Kuntz, K. D.
(Johns Hopkins Univ. Baltimore, MD, United States)
Lallement, R.
(Observatoire de Paris-Meudon France)
Lepri, S. T.
(Michigan Univ. Ann Arbor, MI, United States)
McCammon, Dan
(Science Collaborator Greenbelt, MD, United States)
Morgan, K.
(Science Collaborator Greenbelt, MD, United States)
Porter, F. S.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Snowden, S. L.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Thomas, N. E.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Uprety, Y.
(Miami Univ. Coral Gables, FL, United States)
Ursino, E.
(Miami Univ. Coral Gables, FL, United States)
Walsh, B. M.
(Boston Univ. Boston, MA, United States)
Date Acquired
June 1, 2017
Publication Date
December 28, 2016
Publication Information
Publication: The Structure of the Local Hot Bubble
Publisher: The American Astronomical Society
Volume: 834
Issue: 1
ISSN: 0004-637X
e-ISSN: 1538-4357
Subject Category
Space Sciences (General)
Report/Patent Number
GSFC-E-DAA-TN42976
Funding Number(s)
CONTRACT_GRANT: NNX09AF09G
CONTRACT_GRANT: NNG10WA17C
CONTRACT_GRANT: NNX11AF04G
Distribution Limits
Public
Copyright
Other
Keywords
X-rays
Bubbles
Structure

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