WISE/NEOWISE Main Belt asteroids: family members Virtual Observatory Resource

Authors
  1. Masiero J.R.
  2. Mainzer A.K.
  3. Bauer J.M.
  4. Grav T.
  5. Nugent C.R.
  6. Stevenson R.
  7. Published by
    CDS
Abstract

Using albedos from WISE/NEOWISE to separate distinct albedo groups within the Main Belt asteroids, we apply the Hierarchical Clustering Method to these subpopulations and identify dynamically associated clusters of asteroids. While this survey is limited to the ~35% of known Main Belt asteroids that were detected by NEOWISE, we present the families linked from these objects as higher confidence associations than can be obtained from dynamical linking alone. We find that over one-third of the observed population of the Main Belt is represented in the high-confidence cores of dynamical families. The albedo distribution of family members differs significantly from the albedo distribution of background objects in the same region of the Main Belt; however, interpretation of this effect is complicated by the incomplete identification of lower-confidence family members. In total we link 38298 asteroids into 76 distinct families. This work represents a critical step necessary to debias the albedo and size distributions of asteroids in the Main Belt and understand the formation and history of small bodies in our solar system.

Keywords
  1. asteroids
  2. infrared-sources
  3. surveys
Bibliographic source Bibcode
2013ApJ...770....7M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/770/7
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/770/7
Document Object Identifer DOI
doi:10.26093/cds/vizier.17700007

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/770/7
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/770/7
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/770/7
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

2015-01-19T12:43:03Z
Resource record created
2015-01-19T12:43:03Z
Created
2017-10-03T05:12:33Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr