5-14 Μm Spitzer spectra of Themis family asteroids

Alí-Lagoa, V.; Licandro, J.; Campins, H.; Hardgrove, K.; Fernández, Y.; Kelley, M. S.; Rivkin, A.; Ziffer, J.
Referencia bibliográfica

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1047

Fecha de publicación:
10
2011
Número de autores
8
Número de autores del IAC
2
Número de citas
0
Número de citas referidas
0
Descripción
We present 5-14 μm spectra of 8 Themis family asteroids observed with Spitzer. The diameter and geometric albedo are determined using the NEATM model. Their emissivity spectra is studied in order to determine if they exhibit an emission plateau at about 9 to 12 μm as observed in other primitive asteroids of the outer belt, attributed to fine silicates (the Si-O stretch fundamental).