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We present maps and a catalogue containing the J=1-0 12CO parameters of 29 individual molecular clouds in the second-brightest LMC star formation complex, N11. In the southwestern part of N11, molecular clouds occur in a ring or shell…

A complete overview of the supernova remnant (SNR) population is required to investigate their evolution and interaction with the surrounding interstellar medium in the Small Magellanic Cloud (SMC). Recent XMM-Newton observations of the SMC…

The supernova remnant (SNR) N49B in the Large Magellanic Cloud is a peculiar example of a core-collapse SNR to show the shocked metal-rich ejecta enriched only in Mg without evidence for a similar overabundance in O and Ne. Based on…

High Energy Astrophysical Phenomena · Physics 2017-01-18 Sangwook Park , Jayant Bhalerao

We carried out $^{12}$CO($J$ = 1-0) observations of the Galactic gamma-ray supernova remnant (SNR) Kesteven 79 using the Nobeyama Radio Observatory 45 m radio telescope, which has an angular resolution of $\sim20$ arcsec. We identified…

We observed the oxygen-rich Large Magellanic Cloud (LMC) supernova remnant N132D (SNR 0525-69.6), using all instruments onboard the Spitzer Space Telescope, IRS, IRAC, and MIPS (Infrared Spectrograph, Infrared Array Camera, Multiband…

Astrophysics · Physics 2011-02-11 A. Tappe , J. Rho , W. T. Reach

We present new X-ray and radio data of the LMC SNR candidate DEM L205, obtained by XMM-Newton and ATCA, along with archival optical and infrared observations. We use data at various wavelengths to study this object and its complex…

Aims. Recent ATCA, XMM-Newton and MCELS observations of the Magellanic Clouds (MCs) cover a number of new and known SNRs which are poorly studied, such as SNR J0528-6714 . This particular SNR exhibits luminous radio-continuum emission, but…

Astrophysics of Galaxies · Physics 2015-05-19 E. J. Crawford , M. D. Filipovic , F. Haberl , W. Pietsch , J. L. Payne , A. Y. De Horta

After 30 Doradus, N11 is the second largest and brightest nebula in the LMC. This large nebula has several OB associations with bright nebulae at its surroundings. N11 was previously mapped at the lowest rotational transitions of $^{12}$CO…

Astrophysics of Galaxies · Physics 2019-08-21 M. Celis Peña , S. Paron , M. Rubio , C. N. Herrera , M. E. Ortega

We present a high-resolution radio-continuum view and a multi-frequency analysis of the Large Magellanic Cloud (LMC) Supernova Remnant (SNR) J0450.4-7050, which we give the nickname Veliki. These high-resolution observations reveal a larger…

We present results from the Chandra X-ray Observatory Large Project (878 ks in 28 observations) of the Large Magellanic Cloud supernova remnant N132D. We measure the expansion of the forward shock in the bright southern rim to be…

The environment of supernova remnants (SNRs) is a key factor in their evolution, particularly at later stages of their existence. It is often assumed that mixed-morphology (MM) SNRs evolve in very dense environments, and that their…

High Energy Astrophysical Phenomena · Physics 2019-07-03 Maria Arias , Vladimir Domcek , Ping Zhou , Jacco Vink

We investigate the optical shock emission from the Large Magellanic Cloud supernova remnant 0540-69.3 (SNR 0540) using MUSE integral-field-unit data from the VLT. The observations cover the spectral range 4650-9300 $\r{A}$ and provide a…

High Energy Astrophysical Phenomena · Physics 2025-08-21 L. Tenhu , J. Larsson , P. Lundqvist , I. Saathoff , J. D. Lyman , J. Sollerman

Accurate distances to supernova remnants (SNRs) are crucial in determining their size, age, luminosity and evolutionary state. To determine distances, we chose three SNRs from the VLA Galactic Plane Survey (VGPS) for extraction of HI…

Astrophysics of Galaxies · Physics 2018-05-28 S. Ranasinghe , D. A. Leahy

3C 397 is a radio and X-ray bright Galactic supernova remnant (SNR) with an unusual rectangular morphology. Our CO observation obtained with the Purple Mountain Observatory at Delingha reveals that the remnant is well confined in a cavity…

Astrophysics of Galaxies · Physics 2015-05-14 Bing Jiang , Yang Chen , Junzhi Wang , Yang Su , Xin Zhou , Samar Safi-Harb , Tracey DeLaney

Molecular clouds are known to be clumpy, with dense molecular clumps occupying only a few percent of the volume. A supernova remnant then evolves primarily in the interclump medium, and becomes radiative at a radius of about 6 pc, forming a…

Astrophysics · Physics 2009-10-30 Roger A. Chevalier

Accurate distance measurements to supernova remnants (SNRs) are crucial for understanding their physical properties and evolution. We present a novel method that combines CO line observations with three-dimensional (3D) extinction maps to…

Astrophysics of Galaxies · Physics 2026-03-24 Zhe Zhang , Jun Li , Biwei Jiang , He Zhao , Fupeng Liu

We report the results of ROSAT and ASCA X-ray observations of the supernova remnant N157B (or 30 Dor B, SNR 0539-69.1) in the Large Magellanic Cloud. For comparison, we also briefly describe the results on SNR 0540-69.3, the only confirmed…

Astrophysics · Physics 2009-10-30 Q. Daniel Wang , Eric V. Gotthelf

We probe the environmental properties of X-ray supernova remnants (SNRs) at various points along their evolutionary journey, especially the S-T phase, and their conformance with theoretically derived models of SNR evolution. The remnant…

High Energy Astrophysical Phenomena · Physics 2022-06-22 Chris Albert , Vikram V Dwarkadas

We present and discuss new visual wavelength-range observations of the inner regions of the supernova remnant SNR 0540-69.3 that is located in the Large Magellanic Cloud (LMC). These observations provide us with more spatial and spectral…

Astrophysics of Galaxies · Physics 2013-06-18 C. Sandin , P. Lundqvist , N. Lundqvist , C. -I. Björnsson , G. Olofsson , Yu. A. Shibanov

Recent evidence has suggested that the supernova remnant (SNR) 0104-72.3 in the Small Magellanic Cloud (SMC) may be the result of a prompt Type Ia SN based on enhanced iron abundances and its association with a star-forming region. In this…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Laura A. Lopez , Daniel Castro , Patrick O. Slane , Enrico Ramirez-Ruiz , Carles Badenes
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