Published February 1, 2011 | Version v1
Journal article Metadata-only

MASS AND DENSITY OF THE B-TYPE ASTEROID (702) ALAUDA

Creators

  • 1. Departamento de Astronomia, Universidad de Chile, Santiago (Chile)
  • 2. Departments of Earth and Space Sciences, Physics and Astronomy, University of California, Los Angeles, Los Angeles, CA 90095 (United States)

Description

Observations with the adaptive optics system on the Very Large Telescope reveal that the outer main belt asteroid (702) Alauda has a small satellite with primary to secondary diameter ratio of ∼56. The secondary revolves around the primary in 4.9143 ± 0.007 days at a distance of 1227 ± 24 km, yielding a total system mass of (6.057 ± 0.36) x 1018 kg. Combined with an IRAS size measurement, our data yield a bulk density of 1570 ± 500 kg m-3 for this B-type asteroid.

Availability note (English)

Available from http://dx.doi.org/10.1088/0004-637X/727/2/69

Additional details

Identifiers

DOI
10.1088/0004-637X/727/2/69;

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
727
Journal Issue
2
Journal Page Range
[5 p.]
ISSN
0004-637X
CODEN
ASJOAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43046006
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ASTEROIDS; BULK DENSITY; MASS
Descriptors DEC
DENSITY; PHYSICAL PROPERTIES