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相关论文: Multi-frequency Radio Measurements of SN 1987A ove…

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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 four frequencies, 1.4, 2.4, 4.8 and 8.6 GHz, at…

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 flux density of the radio remnant has increased monotonically since emission was redetected 1200…

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 $0\farcs35\times0\farcs23$ resolution of the diffraction-limited image is the…

高能天体物理现象 · 物理学 2013-04-08 Giovanna Zanardo , L. Staveley-Smith , C. -Y. Ng , B. M. Gaensler , T. M. Potter , R. N. Manchester , A. K. Tzioumis

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 rate is helped by the study of nearby young supernova…

高能天体物理现象 · 物理学 2015-06-17 L. Staveley-Smith , T. M. Potter , G. Zanardo , B. M. Gaensler , C. -Y. Ng

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 period (1992-2017). We use Fourier modeling of the…

太阳与恒星天体物理 · 物理学 2018-11-07 Yvette Cendes , Bryan Gaensler , Chi-Yung Ng , Giovanna Zanardo , Lister Staveley-Smith , Anastasios Tzioumis

The aftermath of supernova (SN) 1987A continues to provide spectacular insights into the interaction between a SN blastwave and its circumstellar en- vironment. We here present 36 GHz observations from the Australia Telescope Compact Array…

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 technique to fit the visibility data, we show that…

高能天体物理现象 · 物理学 2015-06-17 C. -Y. Ng , G. Zanardo , T. M. Potter , L. Staveley-Smith , B. M. Gaensler , R. N. Manchester , A. K. Tzioumis

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 shock and gain energy by entrapment in the magnetic…

高能天体物理现象 · 物理学 2017-10-25 G. Zanardo , L. Staveley-Smith , C. -Y. Ng , R. Indebetouw , M. Matsuura , B. M. Gaensler , A. K. Tzioumis

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. We present a new radio image at 44 GHz of the supernova…

高能天体物理现象 · 物理学 2015-06-17 G. Zanardo , L. Staveley-Smith , C. -Y. Ng , B. M. Gaensler , T. M. Potter , R. N. Manchester , A. K. Tzioumis

Supernova 1987A in the Large Magellanic Cloud provides a spectacularly detailed view of the aftermath of a core-collapse explosion. The supernova ejecta initially coasted outward at more than 10% of the speed of light, but in 1990 were…

天体物理学 · 物理学 2009-06-23 B. M. Gaensler , L. Staveley-Smith , R. N. Manchester , M. J. Kesteven , L. Ball , A. K. Tzioumis

We report the flux densities of the evolving radio source SN1987A at 843 MHz measured from observations made with the Molonglo Observatory Synthesis Telescope between 1994 September and 2000 May. The radio light curve shows that the rate of…

天体物理学 · 物理学 2009-10-31 Lewis Ball , D. F. Crawford , R. W. Hunstead , I. Klamer , V. J. McIntyre

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 radio image of the supernova remnant. The…

天体物理学 · 物理学 2009-11-11 R. N. Manchester , B. M. Gaensler , L. Staveley-Smith , M. J. Kesteven , A. K. Tzioumis

We present an update on the results of our monitoring observations of the X-ray remnant of supernova (SN) 1987A with the {\it Chandra X-Ray Observatory}. As of 2002 December, we have performed a total of seven observations of SN 1987A. The…

天体物理学 · 物理学 2009-11-10 Sangwook Park , Svetozar A. Zhekov , David N. Burrows , Gordon P. Garmire , Richard McCray

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/submillimeter Array (ALMA). The non-thermal and thermal…

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. We aim at resolving the remnant of SN1987A for…

We present Murchison Widefield Array observations of the supernova remnant (SNR) 1987A between 72 and 230 MHz, representing the lowest frequency observations of the source to date. This large lever arm in frequency space constrains the…

We have been monitoring the supernova remnant (SNR) 1987A with {\it Chandra} observations since 1999. Here we report on the latest change in the soft X-ray light curve of SNR 1987A. For the last $\sim$1.5 yr (since day $\sim$8000), the soft…

高能天体物理现象 · 物理学 2015-05-28 Sangwook Park , Svetozar A. Zhekov , David N. Burrows , Judith L. Racusin , Daniel Dewey , Richard McCray

Context: Supernova 1987A (SN1987A) exploded in the Large Magellanic Cloud (LMC). Its proximity and rapid evolution makes it a unique case study of the early phases in the development of a supernova remnant. One particular aspect of interest…

太阳与恒星天体物理 · 物理学 2015-05-28 Masha Lakicevic , Jacco Th. van Loon , Ferdinando Patat , Lister Staveley-Smith , Giovanna Zanardo

We have used the Spitzer satellite to monitor the mid-IR evolution of SN 1987A over a 5 year period spanning the epochs between days 6000 and 8000 since the explosion. The supernova (SN) has evolved into a supernova remnant (SNR) and its…

We report on the results of our monitoring program of the X-ray remnant of supernova 1987A with the {\it Chandra X-Ray Observatory}. We have performed two new observations during the {\it Chandra} Cycle 3 period, bringing the total to six…

天体物理学 · 物理学 2009-11-10 S. Park , D. N. Burrows , S. A. Zhekov , E. Michael , R. McCray , G. Hasinger
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