Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...185.6204d&link_type=abstract
American Astronomical Society, 185th AAS Meeting, #62.04; Bulletin of the American Astronomical Society, Vol. 26, p.1416
Astronomy and Astrophysics
Astronomy
Scientific paper
The High Speed Photometer on the Hubble Space Telescope observed the remnant of SN1987A on four different epochs between 1992 June 2 and 1993 November 4 in a 1600 - 7000 A bandpass. Each observation was approximately 40 minutes in duration and used a 100 microsecond sampling time. After correcting to the barycenter of the solar system, no periodic signal was found in any data set using autocorrelation function (ACF) analyses with lags from 200 microseconds to 10 s, power spectral function (PSF) analyses with a Nyquist frequency corresponding to a period of 200 microseconds, or in trial pulse profiles obtained by binning the data modulo the frequencies of highest significance in the ACF and PSF analyses. Searches for signals with large values of dp/dt also proved negative. We estimate an upper limit of V fainter than 27 for pulsed radiation from any stellar remnant of SN1987A.
Biggs Jason D.
Bless Robert C.
Boyd Patricia T.
Dolan James F.
Elliot James L.
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