Serendipitous Occultation of U0975-07195164 by 9P/Tempel 1 Witnessed from LaSilla

被引:0
作者
Kaeufl, H. U. [1 ]
Saviane, I. [2 ]
Ivanov, V. [2 ]
Bonev, T. [3 ]
Boehnhardt, H. [4 ]
机构
[1] European Southern Observ, D-85748 Garching, Germany
[2] European Southern Observ, Santiago, Chile
[3] Bulgarian Acad Sci, Inst Astron, BG-1040 Sofia, Bulgaria
[4] MPI Solar Syst Res, D-37191 Katlenburg Lindau, Germany
来源
DEEP IMPACT AS A WORLD OBSERVATORY EVENT: SYNERGIES IN SPACE, TIME, AND WAVELENGTH | 2009年
关键词
DEEP IMPACT;
D O I
10.1007/978-3-540-76959-0_23
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Comet 9P/Tempel 1 was systematically monitored by ESO after reappearance in January 2005. Routinely various narrow-band filters in the 10 mu m window were used with TIMMI2 at ESO's 3.6 m telescope. Quasi-simultaneously, the con-let was also observed with an R-band filter from ESO's 3.5 m NTT. In the February 2005 period, the comet; happened to pass accidentially rather close to a reasonably bright field star, unfortuately in non-photometric conditions. The NTT observing set-tip was immediately changed from optical imaging to low-resolution spectroscopy, so that the reddening of the stellar light of this star by the inner coma could be measured with high precision. In combination with the thermal-IR, data this may help for unique constraints on the dust particle size distibution as well as for the optical constants of the (lust.
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页码:185 / +
页数:2
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