2006A&A...454..677B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST04:51:35

2006A&A...454..677B - Astronomy and Astrophysics, volume 454, 677-681 (2006/8-1)

Near infra-red spectroscopy of the asteroid 21 Lutetia. I. New results of long-term campaign.

BIRLAN M., VERNAZZA P., FULCHIGNONI M., BARUCCI M.A., DESCAMPS P., BINZEL R.P. and BUS S.J.

Abstract (from CDS):

Investigation of the physical nature of the asteroid 21 Lutetia, target of Rosetta mission, is required for the completion of its ground-based science and in the frame of its future fly-by. Monitoring this object is essential in preparing the future encounter with the spacecraft. The asteroid was observed with SpeX/IRTF in the spectral region 0.9-4.0µm, in remote observing mode from Meudon, in March 2003 and August 2004. The new spectrum in the range 0.9-2.5µm confirms the previous results (Birlan et al., 2004NewA....9..343B), for a neutral trend with a large shallow band around 1µm. The spectral region around 3µm is usually considered as a tracer of aqueous alteration of the surface. The 3µm band in Lutetias' spectrum is shallower than those of hydrated asteroids, and the 2.9 vs. 3.2 ratio reveals a value close to the CV-CO meteorites. The band around 3.1µm, if it exists in the spectrum of 21 Lutetia, is different from the one present in the spectrum of 1 Ceres, and is lower than 0.5%.

Abstract Copyright:

Journal keyword(s): minor planets, asteroids - techniques: spectroscopic - methods: observational

Simbad objects: 2

goto Full paper

goto View the reference in ADS

Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 19061 PM* 03 04 22.2887421229 +14 51 30.084363482   10.40 9.80     G2V 10 0
2 BD-00 2719 PM* 13 38 41.9438352064 -01 14 17.159713289   10.50 9.95     G5 13 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2006A&A...454..677B and select 'bookmark this link' or equivalent in the popup menu


2020.07.10-04:51:35

© Université de Strasbourg/CNRS

    • Contact