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2 edition of Diffuse gamma-ray emission from the starburst galaxy NGC 253 found in the catalog.

Diffuse gamma-ray emission from the starburst galaxy NGC 253

Diffuse gamma-ray emission from the starburst galaxy NGC 253

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Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Starburst galaxies.,
  • Gamma ray spectra.,
  • Photon density.,
  • Magnetic fields.,
  • Synchrotrons.,
  • Stellar models.,
  • Photons.,
  • Gamma rays.

  • Edition Notes

    Other titlesDiffuse gamma ray emission from the starburst galaxy NGC 253.
    StatementTimothy A.D. Paglione ... [et al.].
    Series[NASA contractor report] -- 207397., NASA contractor report -- NASA CR-207397.
    ContributionsPaglione, Timothy A. D., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL18134662M

      DIFFUSE GAMMA-RAY EMISSION FROM THE STARBURST GALAXY NGC TIMOTHY A. D. PAGLIONE, ALAN P. MARSCHER, AND JAMES M. JACKSON Department of Astronomy, Boston University, Commonwealth Avenue, Boston, MA ; [email protected], [email protected] , [email protected] AND DAVID L. BERTSCH This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation

    Recently, gamma-ray emission at TeV energies has been detected from the starburst galaxies NGC (Acero et al., ) and M82 (Acciari et al., ).It has been claimed that pion production due to cosmic rays accelerated in supernova remnants interacting with the interstellar gas is responsible for the observed gamma ://   VERITAS Discovery of VHE Gamma Rays from the Starburst Galaxy M82 Niklas Karlsson for the VERITAS collaboration Astronomy Dep., Adler Planetarium (Chicago) • NGC (Domingo-Santamaria et al. ) Use non-thermal X-ray emission to constrain the electron population • Lower limit on magnetic field (8 nT)

      We search for gamma-ray emission from a sample of galaxies within and beyond the Local Group with data from the LAT instrument onboard the Fermi satellite. We exclude recently detected galaxies (NGC , M82, NGC , NGC , NGC , Arp ) and use seven years of cumulative ‘Pass 8’ data from the LAT in the MeV to GeV :// We use 2 years of nearly continuous sky-survey observations obtained with the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope to search for gamma-ray emission from M 31 and M We compare the results with those for the Large Magellanic Cloud, the Small Magellanic Cloud, the Milky Way, and the starburst galaxies M 82 and NGC


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Diffuse gamma-ray emission from the starburst galaxy NGC 253 Download PDF EPUB FB2

The starburst galaxy NGC was observed with the Energetic Gamma Ray Experiment Telescope (EGRET) aboard the Compton Gamma Ray Observatory (CGRO) satellite. We obtain a 2 σ upper limit to the γ-ray emission above MeV of 8 x 10^-8^ photons cm^-2^ s^-1^ P. The starburst galaxy NGC was observed with the Energetic Gamma Ray Experiment Telescope (EGRET) aboard the Compton Gamma Ray Observatory (CGRO) satellite.

We obtain a 2 σ upper limit to the γ-ray emission above MeV of 8 x 10^-8^ photons cm^-2^ s^-1^. Because of their large gas column densities and supernova rates, nearby starburst galaxies were predicted to have γ-ray fluxes P/abstract. Recently, the CANGAROO-II telescope detected diffuse TeV gamma-ray emission from a nearby edge-on starburst galaxy, NGC The emission mechanism is discussed in this ://   Detection of diffuse TeV gamma-ray emission from the nearby starburst galaxy NGC _专业资料。 We report the TeV gamma-ray observations of the nearby normal spiral galaxy NGC At a distance of $\sim$ Mpc, NGC is one of the nearest starburst  › 百度文库 › 行业资料.

The CANGAROO-II telescope observed sub-TeV gamma-ray emission from the nearby starburst galaxy NGC The emission region was extended with a radial size of degree. On the contrary, H.E.S.S could not confirm this emission and gave upper limits at the level of the CANGAROO-II flux.

In order to resolve this discrepancy, we analyzed new observational results for NGC by   We report the TeV gamma-ray observations of the nearby normal spiral galaxy NGC At a distance of $\\sim$ Mpc, NGC is one of the nearest starburst galaxies. This relative closeness, coupled with the high star formation rate in the galaxy, make it a good candidate TeV gamma-ray source.

Observations were carried out in and with the CANGAROO-II 10 m imaging atmospheric We report the TeV gamma-ray observations of the nearby normal spiral galaxy NGC At a distance of ~ Mpc, NGC is one of the nearest starburst galaxies. This relative closeness, coupled with the high star formation rate in the galaxy, make it a good candidate TeV gamma-ray &A L 1I.

The CANGAROO-II telescope observed sub-TeV gamma-ray emission from the nearby starburst galaxy NGC The emission region was extended with a radial size of ://   Starburst galaxies exhibit in their central regions a highly increased rate of supernovae, the remnants of which are thought to accelerate energetic cosmic rays up to energies of ~ electron volts.

We report the detection of gamma rays—tracers of such cosmic rays—from the starburst galaxy NGC using the High Energy Stereoscopic System (H.E.S.S.) array of imaging atmospheric Cherenkov   no primary positrons. Emission from CCSNe is not included. The X-ray emission mostly comes from X-ray binaries and thermal emission from gas and is not included in our fitting.

As in Figure 2, note the different ene rgy binnings for the different lines. to the original γ-ray, and cool mainly by Inverse Compton scattering of the :// CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Recently, the CANGAROO-II telescope detected diffuse TeV gamma-ray emission from a nearby edge-on starburst galaxy, NGC The emission mechanism is discussed in this report.

We review the emissions of radio-to-TeV gammarays from NGCand present a model of the non-thermal emissions due to ?doi= Astronomy & Astrophysics manuscript no. ngcdi?use February 2, c ESO arXivv1 [astro-ph] 20 Nov XMM-Newton observations of the diffuse X-ray emission in the starburst galaxy NGC.

› 百度文库 › 专业资料. NGC (галактика Скульптор, Серебряная Монета) — спиральная галактика с перемычкой (тип SBc) в созвездии Скульптор.

NGC — галактика с активными процессами образования звёзд.Расположена на расстоянии около 8 миллионов Get this from a library. Diffuse gamma-ray emission from the starburst galaxy NGC [Timothy A D Paglione; United States.

National Aeronautics and Space Administration.;]   The relationship between the GeV and TeV emission for NGC is less clear given the current data.

Also, note that the inner starburst region of NGC has about a factor of 3 less radio flux than that of M82 at GHz, consistent with the galaxy being less luminous in γ-rays (M82, Klein et al. ; NGCCarilli ).

For example, cosmic-ray proton interactions with interste Cosmic-ray induced gamma-ray emission from the starburst galaxy NGC AIP Conference Proceedings: VolNo 1 MENU   Please use this identifier to cite or link to this item: :// The CANGAROO-II telescope observed sub-TeV gamma-ray emission from the nearby starburst galaxy NGC The emission region was extended with a radial size of degree.

On the contrary, H.E.S.S could not confirm this emission and gave upper limits at the level of the CANGAROO-II Cosmic-ray induced gamma-ray emission from the starburst galaxy NGC In Seventh European Summer School on Experimental Nuclear Astrophysics - Proceedings of the 7th European Summer School on Experimental Nuclear Astrophysics (pp.

(AIP Conference Proceedings; Vol. American Institute of Physics :// gamma-ray source is constrained to = ' at the 3 sigma level compared to the previous limit of = '." Seen by: H.E.S.S. The Gamma-ray Emission of Star-Forming Galaxies Ajello, M. et al., arXiv e-prints parXiv () Cosmic rays from the nearby starburst galaxy NGC the effect of a low luminosity active galactic ?mode=1&showsrc=.

A calculation is presented of X-ray emission from the disk and radio halo of the starburst galaxy NGC Compton scattering of the radio emitting electrons off the far-infrared radiation field in the halo of this galaxy can account for the keV emission recently detected by OSSE.

This could possibly be the first detection of diffuse Compton emission from a galaxy which is not a bona G/abstract. starburst galaxies and M31 with the Energetic Gamma-Ray Experiment Telescope (EGRET) aboard the Compton Gamma-Ray Observatory (CGRO). Though the diffuse gamma-ray emission from starburst galaxies was suspected to be detectable, we find no emission from NGCM82 nor from the average of all 9 ://?article=&context=astro_faculty_pubs.

After the discovery of VHE γ-ray emission from NGC (Acero et al. ), we present for the first time a spectral analysis of the VHE γ-ray data obtained by H.E.S.S. in conjunction with the analysis of a 30 month set of Fermi-LAT data, increased in size by a factor of ≈3 compared to the one used in the original publication of the Fermi