Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006asuai...3...58m&link_type=abstract
Astronomia. La rivista dell'Unione Astrofili Italiani (ISSN 0392-2308), N. 3, p. 58 - 63 (maggio-giugno 2006)
Astronomy and Astrophysics
Astronomy
Comets, Photometry, Space Missions
Scientific paper
Comet 9P/Tempel 1 was constantly monitored during the 2005 apparition by observers participating in the CARA project (http://cara.uai.it). R and I (Cousins), as well as 647-650 nm narrowband filter photometric data were used to produce Afrho quantity measuremnts. Afrho value peaked about 300 cm approximately 83 days before perihelion, with a general behaviour that closely matches the one of previous apparitions. Around the time of the impact of the Deep Impact module a short temporary increase was detected, but Afrho values and the coma profile returned to a normal state within approximately 3 days. The dust cloud produced by the impact was clearly seen in the images obtained on July 4 and 5 as well as a temporary disturbance in the average photometric profile in the coma. No permanent long-time effects were detected in the average Afrho behaviour, which matches the trend observed in previous apparitions fairly well.
Milani Giannantonio
Sostero Giovanni
Trabatti Roberto
Vinante Carlo
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