Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Compositional study of asteroids in the Erigone collisional family using
  visible spectroscopy at the 10.4 m GTC   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 to 0.9 microns) for 101 members of the Erigone family,
using the OSIRIS instrument at the 10.4 m Gran Telescopio Canarias. We found
that 87 percent 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 (approximately 50 percent) present evidence of
aqueous alteration.

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The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
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The categories of this paper are: ao-sci
3
The categories of this paper are: physics