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The nearby Large Magellanic Cloud (LMC) provides a rare opportunity of a spatially resolved view of an external star-forming galaxy in gamma-rays. The LMC was detected at 0.1-100GeV as an extended source with CGRO/EGRET and using early…

High Energy Astrophysical Phenomena · Physics 2015-11-09 LAT Collaboration

We report on observations of the Large Magellanic Cloud with the Fermi Gamma-Ray Space Telescope. The LMC is clearly detected with the Large Area Telescope (LAT) and for the first time the emission is spatially well resolved in gamma-rays.…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Jürgen Knödlseder , Pierre Jean

We report on observations of the Large Magellanic Cloud with the Fermi Gamma-Ray Space Telescope. The LMC is clearly detected with the Large Area Telescope (LAT) and for the first time the emission is spatially well resolved in gamma-rays.…

High Energy Astrophysical Phenomena · Physics 2009-05-18 Jürgen Knödlseder

Apart from the Milky Way, the Large Magellanic Cloud (LMC) is the only other normal star-forming galaxy that was conclusively detected in high energy (> 100 MeV) gamma rays by the Energetic Gamma Ray Telescope (EGRET) on the Compton…

High Energy Astrophysical Phenomena · Physics 2019-08-13 T. A. Porter , J. Knodlseder

We perform spatial and spectral analyses of the Large Magellanic Cloud (LMC) gamma-ray emission collected over 66 months by the Fermi Gamma-ray Space Telescope. In our spatial analysis, we model the LMC cosmic-ray distribution and gamma-ray…

High Energy Astrophysical Phenomena · Physics 2015-08-06 Gary Foreman , You-Hua Chu , Robert Gruendl , Annie Hughes , Brian Fields , Paul Ricker

The flux of gamma rays with energies >100MeV is dominated by diffuse emission from CRs illuminating the ISM of our Galaxy through the processes of Bremsstrahlung, pion production and decay, and inverse-Compton scattering. The study of this…

High Energy Astrophysical Phenomena · Physics 2017-02-22 LAT collaboration

Cosmic rays (CRs) can be studied through the galaxy-wide gamma-ray emission that they generate when propagating in the interstellar medium. The comparison of the diffuse signals from different systems may inform us about the key parameters…

High Energy Astrophysical Phenomena · Physics 2010-12-10 LAT collaboration

Diffuse gamma-ray radiation in galaxies is produced by cosmic ray interactions with the interstellar medium. With the completion of EGRET observations, the only extragalactic object from which there has been a positive detection of diffuse…

Astrophysics · Physics 2009-11-06 Vasiliki Pavlidou , Brian D. Fields

A search for $\gamma$-ray emission from SNRs in the Large Magellanic Cloud (LMC) based on the detection of concentrations in the arrival direction Fermi-LAT images of photons at energies higher than 10 GeV found significant evidence for 9…

High Energy Astrophysical Phenomena · Physics 2025-05-21 Andrea Tramacere , Riccardo Campana , Enrico Massaro , Fabrizio Bocchino , Marco Miceli , Salvatore Orlando

Using infrared, radio, and gamma-ray data,we investigate the propagation characteristics of cosmic-ray (CR) electrons and nuclei in the 30 Doradus (30\,Dor) star-forming region in the Large Magellanic Cloud (LMC) using a phenomenological…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 E. J. Murphy , T. A. Porter , I. V. Moskalenko , G. Helou , A. W. Strong

At a distance of 50 kpc and with a dark matter mass of $\sim10^{10}$ M$_{\odot}$, the Large Magellanic Cloud (LMC) is a natural target for indirect dark matter searches. We use five years of data from the Fermi Large Area Telescope (LAT)…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Matthew R. Buckley , Eric Charles , Jennifer M. Gaskins , Alyson M. Brooks , Alex Drlica-Wagner , Pierrick Martin , Geng Zhao

The Large Magellanic Cloud (LMC) is an irregular satellite galaxy of the Milky Way, which has been observed extensively in Very-High-Energy (VHE) gamma rays with the H.E.S.S. telescopes since 2004 and reaches now a total observation time of…

High Energy Astrophysical Phenomena · Physics 2020-01-23 Nukri Komin , Maria Haupt , H. E. S. S. Collaboration

The 30 Doradus region in the Large Magellanic Cloud is one of the most outstanding star forming regions of the Local Group and a primary target to study star formation in an environment of low metallicity. In order to obtain a more complete…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 M. Rubio , S. Paron , G. Dubner

The Cygnus region hosts a giant molecular-cloud complex which actively forms massive stars. Interactions of cosmic rays with interstellar gas and radiation fields make it shine at gamma-ray energies. Several gamma-ray pulsars and other…

High Energy Astrophysical Phenomena · Physics 2012-08-27 the Fermi LAT Collaboration

We present parsec scale interferometric maps of HCN(1-0) and HCO$^{+}$(1-0) emission from dense gas in the star-forming region 30 Doradus, obtained using the Australia Telescope Compact Array. This extreme star-forming region, located in…

The galactic diffuse $\gamma$-ray emission, as seen by Fermi Large Area Telescope (LAT), shows a sharp peak in the region around 4 kpc from the Galactic center, which can be interpreted either as due to an enhanced density of cosmic-ray…

High Energy Astrophysical Phenomena · Physics 2021-03-23 Giada Peron , Felix Aharonian , Sabrina Casanova , Ruizhi Yang , Roberta Zanin

Galaxy formation simulations demonstrate that cosmic-ray (CR) feedback may be important in the launching of galactic-scale winds. CR protons dominate the bulk of the CR population, yet most observational constraints of CR feedback come from…

High Energy Astrophysical Phenomena · Physics 2018-11-07 Laura A. Lopez , Katie Auchettl , Tim Linden , Alberto D. Bolatto , Todd A. Thompson , Enrico Ramirez-Ruiz

A deep survey of the Large Magellanic Cloud at ~0.1-100TeV photon energies with the Cherenkov Telescope Array is planned. We assess the detection prospects based on a model for the emission of the galaxy, comprising the four known TeV…

High Energy Astrophysical Phenomena · Physics 2023-07-05 The Cherenkov Telescope Array Consortium

We measure the properties of optical emission lines in multiple locations across the Large Magellanic Cloud (LMC) using the Australian National University 2.3-metre telescope and the WiFeS integral field spectrograph. From these…

Astrophysics of Galaxies · Physics 2024-03-05 Philip Lah , Matthew Colless , Francesco D'Eugenio , Brent Groves , Joseph D. Gelfand

The Fermi LAT has opened the way for comparative studies of cosmic rays (CRs) and high-energy objects in the Milky Way (MW) and in other, external, star-forming galaxies. Using 2 yr of observations with the Fermi LAT, local Group galaxy M31…

High Energy Astrophysical Phenomena · Physics 2017-03-01 LAT Collaboration
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