Systematic ranging and late warning asteroid impacts

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Decision Model for Potential Asteroid Impacts

Research in asteroid detection and orbital characterization has identified a new class of possible natural disaster. Asteroids are the only known type of natural disaster that could potentially destroy civilization. The societal importance of asteroid detection is assumed to be high, given the destructive capacity of Potentially Hazardous Asteroids (PHAs). This paper offers a decision analysis ...

متن کامل

The hazard of near-Earth asteroid impacts on earth

Near-Earth asteroids (NEAs) have struck the Earth throughout its existence. During epochs when life was gaining a foothold f 4 Ga, the impact rate was thousands of times what it is today. Even during the Phanerozoic, the numbers of NEAs guarantee that there were other impacts, possibly larger than the Chicxulub event, which was responsible for the Cretaceous–Tertiary extinctions. Astronomers ha...

متن کامل

The Seismic Effect of Impacts on Asteroid Surface Morphology: Three-

Introduction: In recent years, spacecraft observations of 'medium-sized' asteroids 951 Gaspra, 243 Ida, 253 Mathilde, and most importantly 433 Eros have shown the overriding dominance of impact processes with regard to the structure and appearance of these irregular bodies. In a previous work [1], I investigated the relatively unexplored area of seismic shaking as a cause for the downslope moti...

متن کامل

The Seismic Effect of Impacts on Asteroid Surface Morphology: Early

Introduction: In recent years, spacecraft observations of asteroids 951 Gaspra, 243 Ida, 253 Mathilde, and 433 Eros have shown the overriding dominance of impact processes with regard to the structure and appearance of these small, irregular bodies. One currently unanswered question is: to what degree does seismic shaking from impacts affect the surface morphology of these bodies [1]? Through d...

متن کامل

Direct detection of the Yarkovsky effect by radar ranging to asteroid 6489 Golevka.

Radar ranging from Arecibo, Puerto Rico, to the 0.5-kilometer near-Earth asteroid 6489 Golevka unambiguously reveals a small nongravitational acceleration caused by the anisotropic thermal emission of absorbed sunlight. The magnitude of this perturbation, known as the Yarkovsky effect, is a function of the asteroid's mass and surface thermal characteristics. Direct detection of the Yarkovsky ef...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Icarus

سال: 2015

ISSN: 0019-1035

DOI: 10.1016/j.icarus.2015.05.032