2016A&A...586A.129M


Query : 2016A&A...586A.129M

2016A&A...586A.129M - Astronomy and Astrophysics, volume 586A, 129-129 (2016/2-1)

Compositional study of asteroids in the Erigone collisional family using visible spectroscopy at the 10.4m GTC.

MORATE D., DE LEON J., DE PRA M., LICANDRO J., CABRERA-LAVERS A., CAMPINS H., PINILLA-ALONSO N. and ALI-LAGOA V.

Abstract (from CDS):

Two primitive near-Earth asteroids, (101955) Bennu and (162173) Ryugu, will be visited by a spacecraft with the aim of returning samples back to Earth. Since these objects are believed to originate in the inner main belt primitive collisional families (Erigone, Polana, Clarissa, and Sulamitis) or in the background of asteroids outside these families, the characterization of these primitive populations will enhance the scientific return of the missions. The main goal of this work is to shed light on the composition of the Erigone collisional family by means of visible spectroscopy. Asteroid (163) Erigone has been classified as a primitive object, and we expect the members of this family to be consistent with the spectral type of the parent body. We have obtained visible spectra (0.5-0.9µm) for 101 members of the Erigone family, using the OSIRIS instrument at the 10.4m Gran Telescopio Canarias. We found that 87% of the objects have typically primitive visible spectra consistent with that of (163) Erigone. In addition, we found that a significant fraction of these objects (∼50%) present evidence of aqueous alteration.

Abstract Copyright:

Journal keyword(s): minor planets, asteroids: general - methods: data analysis - techniques: spectroscopic

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 HD 11532 PM* 01 53 18.3712838400 +00 22 23.275841628   10.36 9.71     G8III/IV 72 1
2 HD 292561 * 06 51 33.7279522392 -00 11 31.525152072 11.277 11.183 10.574 10.226 9.905 F8 54 0
3 BD+00 2717 * 10 57 04.0451198496 -00 13 12.886813308 10.822 10.567 9.903 9.537 9.206 ~ 69 0
4 BD+00 3383 * 15 38 16.2782442528 +00 15 21.660013476   11.10 10.50     ~ 31 0
5 TYC 447-508-1 * 18 42 45.0084677256 +00 08 04.693469856 13.092 13.057 12.425 12.064 11.716 ~ 34 0
6 BD-00 4074 * 20 43 11.9568455592 +00 26 13.074647820   10.63 9.90     F8 38 0
7 BD-00 4557 PM* 23 42 41.8259946456 +00 45 13.139398080 10.411 10.305 9.693 9.339 8.991 F8 59 0

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2022.10.05-14:59:03

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