| | |
| | |
Stat |
Members: 3643 Articles: 2'488'730 Articles rated: 2609
29 March 2024 |
|
| | | |
|
Article overview
| |
|
Comet Machholz (C/2004 Q2): morphological structures in the inner coma and rotation parameters | Federico Manzini
; Raoul Behrend
; Lorenzo Comolli
; Virginio Oldani
; Cristiano B. Cosmovici
; Roberto Crippa
; Cesare Guaita
; Gottfried Schwarz
; Josep Coloma
; | Date: |
19 Sep 2011 | Abstract: | Extensive observations of comet C/2004 Q2 (Machholz) were carried out between
August 2004 and May 2005. The images obtained were used to investigate the
comet’s inner coma features at resolutions between 350 and 1500 km/pixel. A
photometric analysis of the dust outflowing from the comet’s nucleus and the
study of the motion of the morphological structures in the inner coma indicated
that the rotation period of the nucleus was most likely around 0.74 days. A
thorough investigation of the inner coma morphology allowed us to observe two
main active sources on the comet’s nucleus, at a latitude of +85{deg} pm
5{deg} and +45{deg} pm 5{deg}, respectively. Further sources have been
observed, but their activity ran out quite rapidly over time; the most relevant
was at latcom. = 25{deg} pm 5{deg}. Graphic simulations of the geometrical
conditions of observation of the inner coma were compared with the images and
used to determine a pole orientation at RA=95{deg} pm 5{deg}, Dec=+35{deg}
pm 5{deg}. The comet’s spin axis was lying nearly on the plane of the sky
during the first decade of December 2004. | Source: | arXiv, 1109.4163 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |