HIGH-RESOLUTION RADIO OBSERVATIONS OF THE REMNANT OF SN 1987A AT HIGH FREQUENCIES

@article{Zanardo2013HIGHRESOLUTIONRO,
  title={HIGH-RESOLUTION RADIO OBSERVATIONS OF THE REMNANT OF SN 1987A AT HIGH FREQUENCIES},
  author={Giovanna Zanardo and Lister Staveley-Smith and C.-Y. Ng and Bryan M. Gaensler and T. M. Potter and Richard N. Manchester and Anastasios K. Tzioumis},
  journal={The Astrophysical Journal},
  year={2013},
  volume={767},
  pages={98}
}
We present new imaging observations of the remnant of Supernova (SN) 1987A at 44 GHz, performed in 2011 with the Australia Telescope Compact Array (ATCA). The 0.''35 × 0.''23 resolution of the diffraction-limited image is the highest achieved to date in high-dynamic range. We also present a new ATCA image at 18 GHz derived from 2011 observations, which is super-resolved to 0.''25. The flux density is 40 ± 2 mJy at 44 GHz and 81 ± 6 mJy at 18 GHz. At both frequencies, the remnant exhibits a ring… Expand
The radio remnant of Supernova 1987A at high frequencies and high resolution
Abstract As the remnant of Supernova (SN) 1987A has been getting brighter over time, new observations at high frequencies have allowed imaging of the radio emission at unprecedented detail. WeExpand
Spectral and morphological analysis of the remnant of Supernova 1987A with ALMA and ATCA
We present a comprehensive spectral and morphological analysis of the remnant of supernova (SN) 1987A with the Australia Telescope Compact Array (ATCA) and the Atacama Large Millimeter/submillimeterExpand
Evolution of the Radio Remnant of Supernova 1987A: Morphological Changes from Day 7000
We present radio imaging observations of supernova remnant 1987A at 9 GHz, taken with the Australia Telescope Compact Array over 21 years from 1992 to 2013. By employing a Fourier modeling techniqueExpand
The Reacceleration of the Shock Wave in the Radio Remnant of SN 1987A
We report on updated radio imaging observations of the radio remnant of Supernova 1987A (SN 1987A) at 9 GHz, taken with the Australia Telescope Compact Array (ATCA), covering a 25-year periodExpand
Detection of Linear Polarization in the Radio Remnant of Supernova 1987A
Supernova 1987A in the Large Magellanic Cloud has proven a unique laboratory to investigate particle acceleration in young supernova remnants. Here we report the first detection of linearExpand
Chandra Observes the End of an Era in SN 1987A
Updated imaging and photometric results from Chandra observations of SN 1987A, covering the last 16 years, are presented. We find that the 0.5–2 keV light curve has remained constant at ~8 × 10−12Expand
The Radio Remnant of Supernova 1987A − A Broader View
Abstract Supernova remnants (SNRs) are powerful particle accelerators. As a supernova (SN) blast wave propagates through the circumstellar medium (CSM), electrons and protons scatter across the shockExpand
Radio Observations of Supernova 1987A
Abstract Supernovae and their remnants are believed to be prodigious sources of Galactic cosmic rays and interstellar dust. Understanding the mechanisms behind their surprisingly high production rateExpand
Radio emission from interstellar shocks: Young type Ia supernova remnants and the case of N 103B in the Large Magellanic Cloud
Here we present a radio continuum study based on new and archival data from the Australia Telescope Compact Array towards N 103B, a young (<=1000 yrs) spectroscopically confirmed type Ia SNR in theExpand
SN 1978K: An evolved supernova outside our Local Group detected at millimetre wavelengths
Supernova 1978K is one of the oldest-known examples of the class of Type IIn supernovae that show evidence for strong interaction between the blast wave and a dense, pre-existing circumstellarExpand
...
1
2
3
4
...

References

SHOWING 1-10 OF 61 REFERENCES
HIGH RESOLUTION 36 GHz IMAGING OF THE SUPERNOVA REMNANT OF SN 1987A
The aftermath of supernova (SN) 1987A continues to provide spectacular insights into the interaction between an SN blastwave and its circumstellar environment. We here present 36 GHz observationsExpand
Imaging of the Radio Remnant of SN 1987A at 12 mm Wavelength
Observations of the radio remnant of Supernova 1987A using the Australia Telescope Compact Array in the 12-mm band on 2003 July 31 (day 6002.7 after the explosion) give the first fully resolved radioExpand
MULTIFREQUENCY RADIO MEASUREMENTS OF SUPERNOVA 1987A OVER 22 YEARS
We present extensive observations of the radio emission from the remnant of supernova (SN) 1987A made with the Australia Telescope Compact Array (ATCA), since the first detection of the remnant inExpand
Evolution of the Radio Remnant of SN 1987A: 1990-2001
Abstract The development of the radio remnant of SN 1987A has been followed using the Australia Telescope Compact Array since its first detection in 1990 August. The remnant has been observed at fourExpand
The asymmetric radio remnant of SN 1987A
We present seven years of radio observations of SN 1987A made with the Australia Telescope Compact Array. At 1.4, 2.4, 4.8, and 8.6 GHz, the Nux density of the radio remnant has increased mono-Expand
The remnant of supernova 1987A resolved at 3-mm wavelength
The proximity of core-collapse Supernova 1987A (SN1987A) in the Large Magellanic Cloud (LMC) and its rapid evolution make it a unique case study of the development of a young supernova remnant. WeExpand
First VLBI detection of the radio remnant of supernova 1987A: Evidence for small-scale features
We present a detailed analysis of the first very long baseline interferometry (VLBI) detection of the radio remnant of supernova 1987A. The VLBI data taken in 2007 and 2008 at 1.4 and 1.7 GHz,Expand
Structure of the radio remnant of supernova 1987A
SUPERNOVA 1987A in the Large Magellanic Cloud, the closest known supernova for 400 years, offers unprecedented opportunities for the detailed study of the evolution of a supernova at all wavelengths.Expand
Fourier Modeling of the Radio Torus Surrounding SN 1987A
We present detailed Fourier modeling of the radio remnant of SN 1987A using high-resolution 9 and 18 GHz data taken with the Australia Telescope Compact Array over the period 1992-2008. We develop aExpand
HIGH-RESOLUTION X-RAY IMAGING OF SUPERNOVA REMNANT 1987A
We report observations of the remnant of supernova 1987A with the High Resolution Camera (HRC) on board the Chandra X-ray Observatory. A direct image from the HRC resolves the annular structure ofExpand
...
1
2
3
4
5
...