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

Abstract

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 {approx}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 10{sup 18} kg. Combined with an IRAS size measurement, our data yield a bulk density of 1570 {+-} 500 kg m{sup -3} for this B-type asteroid.

Authors:
 [1]
  1. Departamento de Astronomia, Universidad de Chile, Santiago (Chile)
Publication Date:
OSTI Identifier:
21567577
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 727; Journal Issue: 2; Other Information: DOI: 10.1088/0004-637X/727/2/69; Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTEROIDS; BULK DENSITY; MASS; DENSITY; PHYSICAL PROPERTIES

Citation Formats

Rojo, P, and Margot, J. L., E-mail: pato@das.uchile.cl, E-mail: jlm@astro.ucla.edu. MASS AND DENSITY OF THE B-TYPE ASTEROID (702) ALAUDA. United States: N. p., 2011. Web. doi:10.1088/0004-637X/727/2/69.
Rojo, P, & Margot, J. L., E-mail: pato@das.uchile.cl, E-mail: jlm@astro.ucla.edu. MASS AND DENSITY OF THE B-TYPE ASTEROID (702) ALAUDA. United States. https://doi.org/10.1088/0004-637X/727/2/69
Rojo, P, and Margot, J. L., E-mail: pato@das.uchile.cl, E-mail: jlm@astro.ucla.edu. 2011. "MASS AND DENSITY OF THE B-TYPE ASTEROID (702) ALAUDA". United States. https://doi.org/10.1088/0004-637X/727/2/69.
@article{osti_21567577,
title = {MASS AND DENSITY OF THE B-TYPE ASTEROID (702) ALAUDA},
author = {Rojo, P and Margot, J. L., E-mail: pato@das.uchile.cl, E-mail: jlm@astro.ucla.edu},
abstractNote = {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 {approx}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 10{sup 18} kg. Combined with an IRAS size measurement, our data yield a bulk density of 1570 {+-} 500 kg m{sup -3} for this B-type asteroid.},
doi = {10.1088/0004-637X/727/2/69},
url = {https://www.osti.gov/biblio/21567577}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 2,
volume = 727,
place = {United States},
year = {Tue Feb 01 00:00:00 EST 2011},
month = {Tue Feb 01 00:00:00 EST 2011}
}