Physical Properties of the X-Ray–Luminous SN 1978K in NGC 1313 from Multiwavelength Observations
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چکیده
منابع مشابه
Physical Properties of the X-ray Luminous SN 1978K in NGC 1313 from Multiwavelength Observations
We update the light curves from the X-ray, optical, and radio bandpasses which we have assembled over the past decade, and present two observations in the ultraviolet using the Hubble Space Telescope Faint Object Spectrograph. The HRI X-ray light curve is constant within the errors over the entire observation period. This behavior is confirmed in the ASCA GIS data obtained in 1993 and 1995. In ...
متن کاملMultiwavelength Monitoring of the Unusual Ultraluminous Supernova Sn 1978k in Ngc 1313 and the Search for an Associated Gamma-ray Burst
We discuss our radio (Australia Telescope Compact Array and Australian Long Baseline Array) and X-ray (XMMNewton) monitoring observations of the unusual ultraluminous supernova SN 1978K inNGC 1313 at 25 yr after the explosion. SN 1978K is a rare example of a Type IIn supernova that has remained bright enough to have long-term X-ray and radio observations. The observations probe the dense medium...
متن کاملA Silver Anniversary Observation of the X - Ray Luminous SN 1978 K in NGC 1313
We describe the results of a 2003 Chandra ACIS-I observation of SN 1978K. The spectrum shows little flux below 0.6 keV, in contrast to the 2002 Chandra ACIS-S observation which showed flux to 0.4 keV. Fitting the ACIS-I spectrum alone leads to two solutions depending upon the value of the column density. A joint fit using a dual thermal plasma model applied to the ACIS-I and a contemporaneous X...
متن کاملThe ultraluminous X-ray source NGC 1313 X-2
NGC 1313 X-2 is one of the brightest ultraluminous X-ray sources in the sky, at both X-ray and optical wavelengths; therefore, quite a few studies of available ESO VLT and HST data have appeared in the literature. Here, we present our analysis of VLT/FORS1 and HST/ACS photometric data, confirming the identification of the B ∼ 23 mag blue optical counterpart. We show that the system is part of a...
متن کاملN ov 2 00 3 Chandra ACIS and Newton EPIC Observations of the X - ray Luminous SN 1978 K in NGC 1313
We describe an observation of the X-ray luminous SN1978K in NGC 1313 using the ACIS detector on Chandra and an archival Newton EPIC observation. The models that provided good fits to the ASCA SIS and GIS and the ROSAT PSPC spectra no longer do so for the ACIS and EPIC spectra. The best-fit model to the ACIS and EPIC spectra are dual hot plasma models (vmekal); one component is soft (T = 0.61 −0...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 1999
ISSN: 0004-6256
DOI: 10.1086/301145