New Horizons Photometry of Pluto's Moon Charon

被引：8

作者：

Buratti, B. J. ^{[1
]}

Hicks, M. D. ^{[1
]}

Hillier, J. H. ^{[2
]}

Verbiscer, A. J. ^{[3
]}

Abgarian, M. ^{[1
]}

Hofgartner, J. D. ^{[1
]}

Lauer, T. R. ^{[4
]}

Grundy, W. M. ^{[5
]}

Stern, S. A. ^{[6
]}

Weaver, H. A. ^{[7
]}

Howett, C. J. A. ^{[6
]}

Young, L. A. ^{[6
]}

Cheng, A. ^{[7
]}

Beyer, R. A. ^{[8
]}

Lisse, C. M. ^{[7
]}

Ennico, K. ^{[9
]}

Olkin, C. B. ^{[6
]}

Robbins, S. J. ^{[6
]}

机构：

[1] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

[2] Grays Harbor Coll, Aberdeen, WA 98520 USA

[3] Univ Virginia, Charlottesville, VA 22904 USA

[4] Natl Opt Astron Observ, Tucson, AZ 85726 USA

[5] Lowell Observ, Flagstaff, AZ 86001 USA

[6] Southwest Res Inst, Boulder, CO 80302 USA

[7] Johns Hopkins Univ, Appl Phys Lab, Johns Hopkins Rd, Laurel, MD 20723 USA

[8] SETI Inst, Mountain View, CA 94043 USA

[9] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2019年 / 874卷 / 01期

基金：

美国国家航空航天局;

关键词：

Kuiper belt: general; Kuiper belt objects: individual (Charon; Pluto); planets and satellites: surfaces; techniques: photometric; BIDIRECTIONAL REFLECTANCE SPECTROSCOPY; SURFACE-PROPERTIES; PHASE CURVES; ALBEDOS; PHOEBE; IMAGER; RALPH; COLOR; RHEA;

D O I：

10.3847/2041-8213/ab0bff

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The New Horizons spacecraft extended the range in solar phase angle coverage for Pluto's moon Charon from 1 degrees.8-the maximum observable from Earth-to 170 degrees. This extraordinary expansion in range has enabled photometric modeling and a robust determination of Charon's phase integral and Bond albedo at visible wavelengths. Photometric modeling shows that Charon is similar in its photometric properties to other icy moons, except that its single particle phase function is more isotropic, suggesting the Kuiper Belt may represent a new regime for surface alteration processes. Charon's phase integral is 0.70 +/- 0.04 and its Bond albedo is 0.29 +/- 0.05.

引用

页数：7

共 50 条

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