UNIVERSITY OF BOLOGNA
Department of Physics and Commission for International Relations
INTERNATIONAL WORKSHOP TUNGUSKA96
Bologna (Italy), July 14-18, 1996
The main purpose of this workshop is to allow scientists from both Western countries and Russia to meet in order to 1) assess our current understanding of the Tunguska event as resulting from field research; 2) review models of the presumed extraterrestrial impact event and inferences about the nature of the projectile body; and 3) discuss the implications of Tunguska on the broader issue of the impact hazard for human civilization..Thus, the program of the workshop has been planned in three day-long sessions.
PROGRAM
SESSION 1: 88 YEARS LATER: WHAT WE HAVE LEARNED FROM FIELD RESEARCH IN TUNGUSKA
Invited talks:
N. V. Vasilyev (Commission on Meteorites of the Siberian Section of the Russian Academy of Sciences) The Tunguska event: what we know today and what we hope to learn soon
W. H. Fast (Tomsk University) Forest fall caused by the Tunguska explosion
G. Longo (Bologna University) The testimony of the surviving Tunguska trees
V. D. Nesvetajlo (Tomsk University) Consequences of the Tunguska catastrophe: dendrochronologic inferences
E. M. Kolesnikov (Moscow University) Chemical and isotopic investigation of peat and spherules from the Tunguska region
R. Rocchia (CFR, CEA/CNRS, Gif-sur-Yvette, France) Search for Iridium and extraterrestrial particles in polar snow and on the Tunguska site
G. V. Andreev (Tomsk University) Tunguska eyewitness recollections of local effects and of worldwide atmospheric effects Short communications
SESSION 2: COMET OR ASTEROID? A COMPARISON BETWEEN RECENT AMERICAN AND RUSSIAN MATHEMATICAL MODELS FOR THE TUNGUSKA EXPLOSION
Invited talks:
Z. Sekanina (Jet Propulsion Laboratory, Pasadena) Evidence for an asteroidal origin of the Tunguska body
S. S. Grigorian (Russian Academy of Sciences) The cometary nature of the Tunguska meteorite. On the predictive possibilities of models for impacts
J. G. Hills (Los Alamos National Laboratory) Damage from small asteroid and comet impacts
V. P. Korobeinikov (ICAD, Russian Academy of Sciences) A complex modelling of the Tunguska catastrophe
J. E. Lyne (University of Tennessee) A carbonaceous chondrite - the most probable cause of the Tunguska event
V. P. Stulov (Moscow University) Gasdynamical model of the Tunguska fall Short communications
SESSION 3: WHAT DANGER FROM TUNGUSKA-LIKE OBJECTS? THE RISK FROM COSMIC IMPACTS WITH EARTH
Invited talks:
V. Ye Fortov (Russian Academy of Sciences) Physical processes induced by the motion of comet nuclei in a planetary atmosphere
A. Montanari (Coldigioco Geological Observatory, Italy) Investigating a serial killer: geologic testimony of ET impacts and their victims
V. I. Kondaurov (Moscow University) How does a comet nucleus explode in the atmosphere?
K. Muinonen (Helsinki University) The Spaceguard Survey and the discovery of Tunguska-like near-Earth objects
A. W. Harris (Jet Propulsion Laboratory) The hazard from small impacts, and what can be done about them
P. Farinella (Pisa University) The origin of Tunguska-like impactors