1. A., Juhäsz and M. Horanyi, JGR 102 (1997) 7237.

2. A.L. Graps and E. Grün, Properties, Charging, and Dynamics of Interplanetary Dust Particles in Earth's Magnetosphere, Final Report for ESA contract 13145/98/NL/WK, Unispace Kent 2000.

3. J. Van Allen and F. Bagenal, in The New Solar System (eds. J.K. Beatty, C. Petersen and A. Chaikin), and also Appendix, Sky Publishing, Cambridge (1999).

4. H. Kimura and I. Mann, Astrophys. J. 499 (1998) 454.

5. J.D. Richardson and E.C. Sittler Jr., JGR 95 (1990) 12019.

6. S. Jurac, R.A. Baragiola, R.E. Johnson and E.C. Sittler Jr., JGR 100 (1995) 14821.

7. B.T. Draine and E.E. Salpeter, Astrophys. 231 (1979) 77.

Mars Dust Counter (MDC) on board NOZOMI: Initial results

S. Sasakia, E. Igenbergs", R. Münzenmayerb$, H. Ohashi G. Hofschuster b, W. Naumann™,

G. Färberd, F. Fischerd, A. Fujiwarae, A. Glasmachersf, E. Grün8, Y. Hamabea,e, H. Iglsederh,

H. Miyamotoa&, T. Mukai', K. Nogamij, G. Schwehm*, H. Svedhemk, M. Bornb, T. Kawamura1, D. Klingek, K. Morishigee, T. Naoia, R. Peeks", H. Yanoe and K. Yamakoshi1

department of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan

"Fachgebiet Raumfahrttechnik, Technische Universität München, 85748 Garching, Germany cDepartment of Ocean Sciences, Tokyo University of Fishery, Tokyo 108-0075, Japan dLehrstuhl für Prozeßrechner, Technische Universität München, 80333 München, Germany

'Institute of Space and Astronautical Sciences, Kanagawa 229-8510, Japan

Universität / GH Wuppertal, FBI3 Lehrstuhl für Meßtechnik, 42097 Wuppertal, Germany

EMax Planck Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany

"Wilkhahn, Eimbeckhausen Im Landerfeld 8, 31848 Bad Münder, Germany

'Department of Earth and Planetary Sciences, Kobe University, Kobe 657-0013, Japan

JDokkyo University School of Medicine, Mibu, Tochigi 312-0207, Japan kESA-ESTEC, PO Box 299, 2200 AG Noordwijk, The Netherlands

'Deceaced. Formerly at Institute for Cosmic Ray Research, University of Tokyo

$Now at Astrium Space, Postfach 1420 , 88039 Friedrichshafen, Germany

#Now at Kayser-Threde GmbH, Wolfratshauser Str. 48, 81379 München, Germany

&Now at Department of Geosystem Engineering, University of Tokyo, 113-0033, Japan

Mars Dust Counter (MDC) is a light-weight (730g) impact-ionization dust detector on board NOZOMI, a Japanese Mars mission, which was launched on July 4th 1998. The main aim of MDC is to detect the predicted Martian dust rings / tori. It can also cover velocitymass ranges of interplanetary and interstellar dust particles. By August 2000, MDC had detected more than 60 dust particles. In 1999, it detected five fast particles probably of interstellar origin. For five years from 1999 to 2003, NOZOMI will orbit the sun and MDC can measure interplanetary and interstellar dust between the Earth's and Mars' orbits.

Was this article helpful?

0 0

Post a comment