The Mass of the Asteroid Belt and its Different Zones
Transactions of IAA RAS, issue 33, 22–37 (2015)
Keywords: asteroid, total mass, size distribution, density, albedo
About the paperAbstract
The mass of the main asteroid belt (1.7—3.8 a. u.) is estimated as (13.8 ± 2.0)·10-10 MSun. All available physical characteristics of asteroids were used for the calculation. Hidden mass in the asteroid belt is less than 2 % of this value. After excluding 300 largest asteroid the total mass of remained small asteroids is found to be (1.2 ± 0.8)·10-10 MSun. Mass estimations and other characteristics were obtained for 7 different zones of the asteroid belt, including the Hildas and Trojans. The total mass of the Hungaria-group is ∼ 4·10-14 MSun , zone 2.0—2.5 a. u. ∼ 1.97·10-10 MSun, zone 2.5—2.8 a. u. ∼ 7.73·10-10 MSun, zone 2.8—3.3 a. u. ∼3.55·10-10 MSun, Cybele-group ∼ 0.41·10-10 MSun, Hilda-group · 0.12·10-10MSun, Trojans ∼ 0.30·10-10MSun. For these zones the following characteristics were obtained: the mean albedo, the mean density, the number of asteroids with diameters greater than 1 km, the absolute magnitude to which all the asteroids in every zone are discovered, and the slope of the graph of the differential size distribution of the asteroids.
Citation
T. A. Vinogradova. The Mass of the Asteroid Belt and its Different Zones // Transactions of IAA RAS. — 2015. — Issue 33. — P. 22–37.
@article{vinogradova2015,
abstract = {The mass of the main asteroid belt (1.7—3.8 a. u.) is estimated as (13.8 ± 2.0)·10-10 MSun. All available physical characteristics of asteroids were used for the calculation. Hidden mass in the asteroid belt is less than 2 % of this value. After excluding 300 largest asteroid the total mass of remained small asteroids is found to be (1.2 ± 0.8)·10-10 MSun. Mass estimations and other characteristics were obtained for 7 different zones of the asteroid belt, including the Hildas and Trojans. The total mass of the Hungaria-group is ∼ 4·10-14 MSun , zone 2.0—2.5 a. u. ∼ 1.97·10-10 MSun, zone 2.5—2.8 a. u. ∼ 7.73·10-10 MSun, zone 2.8—3.3 a. u. ∼3.55·10-10 MSun, Cybele-group ∼ 0.41·10-10 MSun, Hilda-group · 0.12·10-10MSun, Trojans ∼ 0.30·10-10MSun. For these zones the following characteristics were obtained: the mean albedo, the mean density, the number of asteroids with diameters greater than 1 km, the absolute magnitude to which all the asteroids in every zone are discovered, and the slope of the graph of the differential size distribution of the asteroids.},
author = {T.~A. Vinogradova},
issue = {33},
journal = {Transactions of IAA RAS},
keyword = {asteroid, total mass, size distribution, density, albedo},
pages = {22--37},
title = {The Mass of the Asteroid Belt and its Different Zones},
url = {http://iaaras.ru/en/library/paper/1046/},
year = {2015}
}
TY - JOUR
TI - The Mass of the Asteroid Belt and its Different Zones
AU - Vinogradova, T. A.
PY - 2015
T2 - Transactions of IAA RAS
IS - 33
SP - 22
AB - The mass of the main asteroid belt (1.7—3.8 a. u.) is estimated as
(13.8 ± 2.0)·10-10 MSun. All available physical characteristics of
asteroids were used for the calculation. Hidden mass in the asteroid
belt is less than 2 % of this value. After excluding 300 largest
asteroid the total mass of remained small asteroids is found to be
(1.2 ± 0.8)·10-10 MSun. Mass estimations and other characteristics
were obtained for 7 different zones of the asteroid belt, including
the Hildas and Trojans. The total mass of the Hungaria-group is ∼
4·10-14 MSun , zone 2.0—2.5 a. u. ∼ 1.97·10-10 MSun, zone 2.5—2.8 a.
u. ∼ 7.73·10-10 MSun, zone 2.8—3.3 a. u. ∼3.55·10-10 MSun, Cybele-
group ∼ 0.41·10-10 MSun, Hilda-group · 0.12·10-10MSun, Trojans ∼
0.30·10-10MSun. For these zones the following characteristics were
obtained: the mean albedo, the mean density, the number of asteroids
with diameters greater than 1 km, the absolute magnitude to which all
the asteroids in every zone are discovered, and the slope of the
graph of the differential size distribution of the asteroids.
UR - http://iaaras.ru/en/library/paper/1046/
ER -