The NEO (175706) 1996 FG3 in the 2-4μm spectral region: Evidence for an aqueously altered surface

Andrew S. Rivkin; Ellen S. Howell; Ronald J. Vervack; Chris Magri; Michael C. Nolan; Yan R. Fernandez; Andrew F. Cheng; M. Antonietta Barucci; Patrick Michel

doi:10.1016/j.icarus.2012.12.016

The NEO (175706) 1996 FG3 in the 2-4μm spectral region: Evidence for an aqueously altered surface

Andrew S. Rivkin
, Ellen S. Howell
, Ronald J. Vervack
, Chris Magri
, Michael C. Nolan
, Yan R. Fernandez
, Andrew F. Cheng
, M. Antonietta Barucci
, Patrick Michel

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

We present observations of the binary near-Earth Asteroid (175706) 1996 FG3 in the 2-4. μm spectral region, obtained on multiple nights using the SpeX instrument on the NASA Infrared Telescope Facility (IRTF). We find evidence for an absorption band of ~5-10% (depending on the night and details of continuum choice), diagnostic for hydrated/hydroxylated minerals on the asteroid surface. This demonstrates that the optical surface of 1996 FG3 has not been heated to dehydrating temperatures. Sample-return missions targeting 1996 FG3 will likely find relatively fresh areas for sampling.

Original language	English (US)
Pages (from-to)	493-498
Number of pages	6
Journal	Icarus
Volume	223
Issue number	1
DOIs	https://doi.org/10.1016/j.icarus.2012.12.016
State	Published - Mar 2013
Externally published	Yes

Keywords

Asteroids
Asteroids, Composition
Asteroids, Surfaces
Spectroscopy

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1016/j.icarus.2012.12.016

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@article{6b0c29609d4d4fbcb11df4400fad31db,

title = "The NEO (175706) 1996 FG3 in the 2-4μm spectral region: Evidence for an aqueously altered surface",

abstract = "We present observations of the binary near-Earth Asteroid (175706) 1996 FG3 in the 2-4. μm spectral region, obtained on multiple nights using the SpeX instrument on the NASA Infrared Telescope Facility (IRTF). We find evidence for an absorption band of \textasciitilde{}5-10\% (depending on the night and details of continuum choice), diagnostic for hydrated/hydroxylated minerals on the asteroid surface. This demonstrates that the optical surface of 1996 FG3 has not been heated to dehydrating temperatures. Sample-return missions targeting 1996 FG3 will likely find relatively fresh areas for sampling.",

keywords = "Asteroids, Asteroids, Composition, Asteroids, Surfaces, Spectroscopy",

author = "Rivkin, \{Andrew S.\} and Howell, \{Ellen S.\} and Vervack, \{Ronald J.\} and Chris Magri and Nolan, \{Michael C.\} and Fernandez, \{Yan R.\} and Cheng, \{Andrew F.\} and \{Antonietta Barucci\}, M. and Patrick Michel",

note = "Funding Information: A.S.R. acknowledges support from the NSF Planetary Astronomy program and the NASA Planetary Geology and Geophysics program. M.A.B. and P.M. acknowledge support from the French space agency CNES. NSF Grant AST-0808064 supported the observations of 1996 FG3 and partially supported the work of E.S.H., R.J.V., C.M., M.C.N., and Y.R.V. E.S.H. and M.C.N. acknowledge additional support from NASA NEOO NNX12AF24G. Thanks to the Javier Licandro and Stephen Wolters for helpful reviews and comments. ",

year = "2013",

month = mar,

doi = "10.1016/j.icarus.2012.12.016",

language = "English (US)",

volume = "223",

pages = "493--498",

journal = "Icarus",

issn = "0019-1035",

publisher = "Academic Press Inc.",

number = "1",

}

TY - JOUR

T1 - The NEO (175706) 1996 FG3 in the 2-4μm spectral region

T2 - Evidence for an aqueously altered surface

AU - Rivkin, Andrew S.

AU - Howell, Ellen S.

AU - Vervack, Ronald J.

AU - Magri, Chris

AU - Nolan, Michael C.

AU - Fernandez, Yan R.

AU - Cheng, Andrew F.

AU - Antonietta Barucci, M.

AU - Michel, Patrick

N1 - Funding Information: A.S.R. acknowledges support from the NSF Planetary Astronomy program and the NASA Planetary Geology and Geophysics program. M.A.B. and P.M. acknowledge support from the French space agency CNES. NSF Grant AST-0808064 supported the observations of 1996 FG3 and partially supported the work of E.S.H., R.J.V., C.M., M.C.N., and Y.R.V. E.S.H. and M.C.N. acknowledge additional support from NASA NEOO NNX12AF24G. Thanks to the Javier Licandro and Stephen Wolters for helpful reviews and comments.

PY - 2013/3

Y1 - 2013/3

N2 - We present observations of the binary near-Earth Asteroid (175706) 1996 FG3 in the 2-4. μm spectral region, obtained on multiple nights using the SpeX instrument on the NASA Infrared Telescope Facility (IRTF). We find evidence for an absorption band of ~5-10% (depending on the night and details of continuum choice), diagnostic for hydrated/hydroxylated minerals on the asteroid surface. This demonstrates that the optical surface of 1996 FG3 has not been heated to dehydrating temperatures. Sample-return missions targeting 1996 FG3 will likely find relatively fresh areas for sampling.

AB - We present observations of the binary near-Earth Asteroid (175706) 1996 FG3 in the 2-4. μm spectral region, obtained on multiple nights using the SpeX instrument on the NASA Infrared Telescope Facility (IRTF). We find evidence for an absorption band of ~5-10% (depending on the night and details of continuum choice), diagnostic for hydrated/hydroxylated minerals on the asteroid surface. This demonstrates that the optical surface of 1996 FG3 has not been heated to dehydrating temperatures. Sample-return missions targeting 1996 FG3 will likely find relatively fresh areas for sampling.

KW - Asteroids

KW - Asteroids, Composition

KW - Asteroids, Surfaces

KW - Spectroscopy

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DO - 10.1016/j.icarus.2012.12.016

M3 - Article

AN - SCOPUS:84873416646

SN - 0019-1035

VL - 223

SP - 493

EP - 498

JO - Icarus

JF - Icarus

IS - 1

ER -

The NEO (175706) 1996 FG3 in the 2-4μm spectral region: Evidence for an aqueously altered surface

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Keywords

ASJC Scopus subject areas

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