Broadband Spectral Modeling of NGC 253 from Hard X-rays to TeV Gamma Rays

T.M. Venters; D.R. Wik; B. Lehmer; A.E. Hornschemeier; M. Yukita; A. Ptak; A. Zezas; V. Antoniou; M. Argo; K. Bechtol; S.E. Boggs; F. Christensen; W.W. Craig; C.J. Hailey; F. Harrison; R. Krivonos; Thomas Maccarone; D. Stern; W. Zhang

Broadband Spectral Modeling of NGC 253 from Hard X-rays to TeV Gamma Rays

T.M. Venters, D.R. Wik, B. Lehmer, A.E. Hornschemeier, M. Yukita, A. Ptak, A. Zezas, V. Antoniou, M. Argo, K. Bechtol, S.E. Boggs, F. Christensen, W.W. Craig, C.J. Hailey, F. Harrison, R. Krivonos, Thomas Maccarone, D. Stern, W. Zhang

Physics

Research output: Contribution to conference › Paper

Abstract

An exciting result from Fermi is the detection of star-forming galaxies at GeV energies, but the relative contributions of various radiative processes to the gamma-ray signal remain uncertain. NuSTAR observations of NGC 253 in the hard X-ray band (10-30 keV) enable the most sensitive search to date for diffuse inverse Compton emission in that bandpass, which in turn will constrain the role of hadronic and leptonic interactions in producing the GeV emission. We present the latest results from detailed broadband spectral modeling of the nearby starburst galaxy NGC 253 from keV to TeV energies in light of new observations from NuSTAR.

Original language	English
State	Published - Jan 2015

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title = "Broadband Spectral Modeling of NGC 253 from Hard X-rays to TeV Gamma Rays",

abstract = "An exciting result from Fermi is the detection of star-forming galaxies at GeV energies, but the relative contributions of various radiative processes to the gamma-ray signal remain uncertain. NuSTAR observations of NGC 253 in the hard X-ray band (10-30 keV) enable the most sensitive search to date for diffuse inverse Compton emission in that bandpass, which in turn will constrain the role of hadronic and leptonic interactions in producing the GeV emission. We present the latest results from detailed broadband spectral modeling of the nearby starburst galaxy NGC 253 from keV to TeV energies in light of new observations from NuSTAR.",

author = "T.M. Venters and D.R. Wik and B. Lehmer and A.E. Hornschemeier and M. Yukita and A. Ptak and A. Zezas and V. Antoniou and M. Argo and K. Bechtol and S.E. Boggs and F. Christensen and W.W. Craig and C.J. Hailey and F. Harrison and R. Krivonos and Thomas Maccarone and D. Stern and W. Zhang",

year = "2015",

month = jan,

language = "English",

}

TY - CONF

T1 - Broadband Spectral Modeling of NGC 253 from Hard X-rays to TeV Gamma Rays

AU - Venters, T.M.

AU - Wik, D.R.

AU - Lehmer, B.

AU - Hornschemeier, A.E.

AU - Yukita, M.

AU - Ptak, A.

AU - Zezas, A.

AU - Antoniou, V.

AU - Argo, M.

AU - Bechtol, K.

AU - Boggs, S.E.

AU - Christensen, F.

AU - Craig, W.W.

AU - Hailey, C.J.

AU - Harrison, F.

AU - Krivonos, R.

AU - Maccarone, Thomas

AU - Stern, D.

AU - Zhang, W.

PY - 2015/1

Y1 - 2015/1

N2 - An exciting result from Fermi is the detection of star-forming galaxies at GeV energies, but the relative contributions of various radiative processes to the gamma-ray signal remain uncertain. NuSTAR observations of NGC 253 in the hard X-ray band (10-30 keV) enable the most sensitive search to date for diffuse inverse Compton emission in that bandpass, which in turn will constrain the role of hadronic and leptonic interactions in producing the GeV emission. We present the latest results from detailed broadband spectral modeling of the nearby starburst galaxy NGC 253 from keV to TeV energies in light of new observations from NuSTAR.

AB - An exciting result from Fermi is the detection of star-forming galaxies at GeV energies, but the relative contributions of various radiative processes to the gamma-ray signal remain uncertain. NuSTAR observations of NGC 253 in the hard X-ray band (10-30 keV) enable the most sensitive search to date for diffuse inverse Compton emission in that bandpass, which in turn will constrain the role of hadronic and leptonic interactions in producing the GeV emission. We present the latest results from detailed broadband spectral modeling of the nearby starburst galaxy NGC 253 from keV to TeV energies in light of new observations from NuSTAR.

M3 - Paper

ER -

Broadband Spectral Modeling of NGC 253 from Hard X-rays to TeV Gamma Rays

Abstract

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