THE STRUCTURE of the LOCAL HOT BUBBLE

W. Liu, M. Chiao, M. R. Collier, T. Cravens, Massimiliano Galeazzi, D. Koutroumpa, K. D. Kuntz, R. Lallement, S. T. Lepri, D. McCammon, K. Morgan, F. S. Porter, S. L. Snowden, N. E. Thomas, Y. Uprety, E. Ursino, B. M. Walsh

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Diffuse 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.

Original languageEnglish (US)
Article number33
JournalAstrophysical Journal
Volume834
Issue number1
DOIs
StatePublished - Jan 1 2017

Fingerprint

bubble
bubbles
charge exchange
solar wind
sounding rockets
x rays
thermal emission
cavity
ionization
physical property
physical properties
dust
galaxies
cavities
gases
gas
temperature

Keywords

  • ISM: bubbles
  • ISM: structure
  • X-rays: diffuse background
  • X-rays: ISM

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Liu, W., Chiao, M., Collier, M. R., Cravens, T., Galeazzi, M., Koutroumpa, D., ... Walsh, B. M. (2017). THE STRUCTURE of the LOCAL HOT BUBBLE. Astrophysical Journal, 834(1), [33]. https://doi.org/10.3847/1538-4357/834/1/33

THE STRUCTURE of the LOCAL HOT BUBBLE. / Liu, W.; Chiao, M.; Collier, M. R.; Cravens, T.; Galeazzi, Massimiliano; Koutroumpa, D.; Kuntz, K. D.; Lallement, R.; Lepri, S. T.; McCammon, D.; Morgan, K.; Porter, F. S.; Snowden, S. L.; Thomas, N. E.; Uprety, Y.; Ursino, E.; Walsh, B. M.

In: Astrophysical Journal, Vol. 834, No. 1, 33, 01.01.2017.

Research output: Contribution to journalArticle

Liu, W, Chiao, M, Collier, MR, Cravens, T, Galeazzi, M, Koutroumpa, D, Kuntz, KD, Lallement, R, Lepri, ST, McCammon, D, Morgan, K, Porter, FS, Snowden, SL, Thomas, NE, Uprety, Y, Ursino, E & Walsh, BM 2017, 'THE STRUCTURE of the LOCAL HOT BUBBLE', Astrophysical Journal, vol. 834, no. 1, 33. https://doi.org/10.3847/1538-4357/834/1/33
Liu W, Chiao M, Collier MR, Cravens T, Galeazzi M, Koutroumpa D et al. THE STRUCTURE of the LOCAL HOT BUBBLE. Astrophysical Journal. 2017 Jan 1;834(1). 33. https://doi.org/10.3847/1538-4357/834/1/33
Liu, W. ; Chiao, M. ; Collier, M. R. ; Cravens, T. ; Galeazzi, Massimiliano ; Koutroumpa, D. ; Kuntz, K. D. ; Lallement, R. ; Lepri, S. T. ; McCammon, D. ; Morgan, K. ; Porter, F. S. ; Snowden, S. L. ; Thomas, N. E. ; Uprety, Y. ; Ursino, E. ; Walsh, B. M. / THE STRUCTURE of the LOCAL HOT BUBBLE. In: Astrophysical Journal. 2017 ; Vol. 834, No. 1.
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