Observation of an outburst of comet Hale–Bopp in September 1996

Tao, Jun; Qian, Bochen; Gu, Minfeng; Tang, Yuan; Song, Baojun

doi:10.1016/s0032-0633(99)00093-8

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…An outburst was reported in mid-September (3.1 au), when at least a few of the jets appeared disrupted (Braunstein et al 1997;Tao et al 2000;McCarthy et al 2007). This outburst did not appear in our lightcurve, nor did it cause a change in the lightcurve, as the coma maintained a slope of n ∼ 3 for another month until ∼ 2.6 au (mid-late October 1996).…”

Section: 22mentioning

confidence: 99%

The visual lightcurve of comet C/1995 O1 (Hale-Bopp) from 1995-1999

Womack¹,

Curtis²,

Rabson³

et al. 2020

Preprint

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The long-term brightness evolution of the great comet C/1995 O1 (Hale-Bopp) presented a remarkable opportunity to study the behavior of its coma over four years. We used approximately 2200 total visual magnitudes published in the International Comet Quarterly taken from 17 observers during the period of 1995 July -1999 September to create a secular lightcurve. In order to account for observer differences, we present a novel algorithm to reduce scatter and increase precision in a lightcurve compiled from many sources. It is implemented in a publicly available code, IC-QSPLITTER. This code addresses the differences among observers by using a selfconsistent statistical approach, leading to a sharper lightcurve, and improving the precision of the measured slopes. To first order, the comet's lightcurve approximately follows a r −4 response for both pre-and post-perihelion distances. Interestingly, the pre-perihelion data are better fit with a fifth-order polynomial with inflection points

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Section: 22mentioning

confidence: 99%

The visual lightcurve of comet C/1995 O1 (Hale-Bopp) from 1995-1999

Womack¹,

Curtis²,

Rabson³

et al. 2020

Preprint

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show abstract

“…Each CCD image is corrected for bias, dark, and flat field. In order to depress the coma background and to clearly show the near nuclear structure, we processed the images with the wavelet method (Tao et al 1997;Tao et al 2000;Marchis et al 1999). The coma structures can be clearly seen in Figure 1 (white patterns).…”

Section: Observationsmentioning

confidence: 99%

A Simulation of Shell Structures of Comet Hale-Bopp in February 1997

Tao

Qian

2001

International Astronomical Union Colloquium

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“…All the observations were carried out with the similar CCD detector and same telescope under very similar conditions, so the procedures of observing, measuring and calibration calculation remain essentially the same as described in Paper I, and the reader is suggested to refer to the papers of Qian et al (2003) and Tao et al (2000) for details about the CCD detector and reflector.…”

Section: Introductionmentioning

confidence: 99%

1997–2000 CCD astrometric observations of Saturn's satellites and comparison with theories

Qiao¹,

Shen²,

Harper

et al. 2004

A&A

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Abstract. As a continuation of the observing campaign 1994 -1996(Qiao et al. 1999, this paper presents 1167 new measurements of the positions of the major Saturnian satellites obtained using a CCD camera on the 1.56 m reflector at the Sheshan station near Shanghai during the period 1997-2000. The observations include the major satellites exclusive of the faintest satellite, Hyperion. The analytical theory TASS was chosen for astrometric calibration of the CCD and theory computation. Analysis of the data as inter-satellite positions shows that the observations of Tethys, Dione, Rhea, and Iapetus have a standard deviation about the mean of 0. 06, which matches the accuracy of our earlier observations. However, for a few of the inner satellites, including Mimas, Enceladus, we have obtained poorer residuals up to 0. 1 to 0. 2 which we ascribe to lower quantum efficiency of the CCD.

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Observation of an outburst of comet Hale–Bopp in September 1996

Cited by 7 publications

References 8 publications

The visual lightcurve of comet C/1995 O1 (Hale-Bopp) from 1995-1999

The visual lightcurve of comet C/1995 O1 (Hale-Bopp) from 1995-1999

A Simulation of Shell Structures of Comet Hale-Bopp in February 1997

1997–2000 CCD astrometric observations of Saturn's satellites and comparison with theories

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