Surface Photometry of Comet Hale-Bopp Carbon Images |
| |
| Authors: | Sizonenko Yu V |
| |
| Institution: | (1) Main Astronomical Observatory of NAS, Kyiv-22, 252650, Ukraine |
| |
| Abstract: | A very long series of photographic observations of the comet Hale-Bopp has been made during January–April 1997 at the double
astrograph (400/2000) of the Main Astronomical Observatory (Kyiv, Ukraine). Some of the cometary photos were obtained with
two wide-band filter combinations. One of these combinations isolates C2 emission, another — the nearby dust continuum. The images were digitized by means of AMDPH-XY machine and then calibrated
following the standard procedure. After subtraction of the dust continuum the distribution of surface brightness in the C2 emission coma of comet Hale-Bopp was studied. We found an asymmetric brightness distribution both pre- and post-perihelion.
On 21.77 April 1997 a secondary brightness peak is found at the distance of 1.03 × 105 km from the nucleus. It is possible that this peak is related to the extended source of the C2 molecules.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
| Keywords: | Carbon emission images comet Hale-Bopp surface photometry |
| 本文献已被 SpringerLink 等数据库收录！ |
|
