Detection of large color variation in the potentially hazardous asteroid (297274) 1996 SK

Chien Hsien Lin; Wing Huen Ip; Zhong Yi Lin; Fumi Yoshida; Yu Chi Cheng

doi:10.1088/1674-4527/14/3/005

Detection of large color variation in the potentially hazardous asteroid (297274) 1996 SK

Chien Hsien Lin, Wing Huen Ip, Zhong Yi Lin, Fumi Yoshida, Yu Chi Cheng

Graduate Institute of Astronomy

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

5 Scopus citations

Abstract

Low-inclination near-earth asteroid (NEA) (297274) 1996 SK, which is also classified as a potentially hazardous asteroid, has a highly eccentric orbit. It was studied by multi-wavelength photometry within the framework of an NEA color survey at Lulin Observatory. Here, we report the finding of large color variation across the surface of (297274) 1996 SK within one asteroidal rotation period of 4.656 ± 0.122 hours and classify it as an S-type asteroid according to its average colors of B - V = 0.767 ± 0.033, V - R = 0.482 ± 0.021, V - I = 0.801 ± 0.025 and the corresponding relative reflectance spectrum. These results might be indicative of differential space weathering or compositional inhomogeneity in the surface materials.

Original language	English
Pages (from-to)	311-318
Number of pages	8
Journal	Research in Astronomy and Astrophysics
Volume	14
Issue number	3
DOIs	https://doi.org/10.1088/1674-4527/14/3/005
State	Published - Mar 2014

Keywords

minor planets, asteroids: individual: PHA (297274)
techniques: photometric

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10.1088/1674-4527/14/3/005

Cite this

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title = "Detection of large color variation in the potentially hazardous asteroid (297274) 1996 SK",

abstract = "Low-inclination near-earth asteroid (NEA) (297274) 1996 SK, which is also classified as a potentially hazardous asteroid, has a highly eccentric orbit. It was studied by multi-wavelength photometry within the framework of an NEA color survey at Lulin Observatory. Here, we report the finding of large color variation across the surface of (297274) 1996 SK within one asteroidal rotation period of 4.656 ± 0.122 hours and classify it as an S-type asteroid according to its average colors of B - V = 0.767 ± 0.033, V - R = 0.482 ± 0.021, V - I = 0.801 ± 0.025 and the corresponding relative reflectance spectrum. These results might be indicative of differential space weathering or compositional inhomogeneity in the surface materials.",

keywords = "minor planets, asteroids: individual: PHA (297274), techniques: photometric",

author = "Lin, {Chien Hsien} and Ip, {Wing Huen} and Lin, {Zhong Yi} and Fumi Yoshida and Cheng, {Yu Chi}",

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T1 - Detection of large color variation in the potentially hazardous asteroid (297274) 1996 SK

AU - Lin, Chien Hsien

AU - Ip, Wing Huen

AU - Lin, Zhong Yi

AU - Yoshida, Fumi

AU - Cheng, Yu Chi

PY - 2014/3

Y1 - 2014/3

N2 - Low-inclination near-earth asteroid (NEA) (297274) 1996 SK, which is also classified as a potentially hazardous asteroid, has a highly eccentric orbit. It was studied by multi-wavelength photometry within the framework of an NEA color survey at Lulin Observatory. Here, we report the finding of large color variation across the surface of (297274) 1996 SK within one asteroidal rotation period of 4.656 ± 0.122 hours and classify it as an S-type asteroid according to its average colors of B - V = 0.767 ± 0.033, V - R = 0.482 ± 0.021, V - I = 0.801 ± 0.025 and the corresponding relative reflectance spectrum. These results might be indicative of differential space weathering or compositional inhomogeneity in the surface materials.

AB - Low-inclination near-earth asteroid (NEA) (297274) 1996 SK, which is also classified as a potentially hazardous asteroid, has a highly eccentric orbit. It was studied by multi-wavelength photometry within the framework of an NEA color survey at Lulin Observatory. Here, we report the finding of large color variation across the surface of (297274) 1996 SK within one asteroidal rotation period of 4.656 ± 0.122 hours and classify it as an S-type asteroid according to its average colors of B - V = 0.767 ± 0.033, V - R = 0.482 ± 0.021, V - I = 0.801 ± 0.025 and the corresponding relative reflectance spectrum. These results might be indicative of differential space weathering or compositional inhomogeneity in the surface materials.

KW - minor planets, asteroids: individual: PHA (297274)

KW - techniques: photometric

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JF - Research in Astronomy and Astrophysics

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Detection of large color variation in the potentially hazardous asteroid (297274) 1996 SK

Abstract

Keywords

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