منابع مشابه
XMM - Newton observation of SN 1993 J in M 81
In April 2001 SN1993J was observed with both the PN and MOS cameras of the XMM-Newton observatory, resulting in about 7 × 10 4 s of acceptable observation time. Fit results with both the PN and MOS2 camera spectra studying different spectral models are presented. The spectra are best fitted in the energy range between 0.3 and ∼ 10 keV by a 2-component thermal model with temperatures of kT1 = 0....
متن کاملEARLY NEAR-INFRARED OBSERVATIONS OF SN 1993J K.Matthews,
Photometric observations in the near-infrared atmospheric windows from 1.25 to 3.7 lm and spectrographic observations from 1.2 to 2.4 lm are presented of supernova SN 1993J for 250 days after the outburst. After an initial rise to a secondary maximum the infrared observations show an exponential drop much like the visual observations. At day 130 after the outburst, however, the 3.7 lm data show...
متن کاملSn 1993j Vlbi (iii): the Evolution of the Radio Shell
A sequence of images of supernova 1993J at 30 epochs, from 50 d to ∼ 9 yr after shock breakout, shows the evolution of the expanding radio shell of an exploded star in detail. The images were obtained from 24 observing sessions at 8.4 GHz and 19 at 5.0 GHz and from our last session at 1.7 GHz. The images are all phase-referenced to the stable reference point of the core of the host galaxy M81. ...
متن کاملSimulated Radio Images and Light Curves of SN 1993J
We present calculations of the radio images and light curves from supernovae, based on high-resolution numerical simulations of the hydrodynamics and radiation transfer in a spherically symmetric medium. As a specific example we model the emission from SN1993J. This supernova does not appear to be expanding in a self-similar fashion, and cannot be adequately fitted with the often-used analytic ...
متن کاملXMM - Newton observations of SN 1987 A
Context. We report on XMM-Newton observations of SN 1987 A in the Large Magellanic Cloud. Aims. The large collecting area telescopes together with the European Photon Imaging Cameras (EPIC) provide X-ray spectra with unprecedented statistical quality and make it possible to investigate the spectral evolution during the brightening observed since the discovery in X-rays. High resolution spectra ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2003
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20030687