The satellite of Pluto. II

Harrington, R. S.; Christy, J. W.

doi:10.1086/112656

Cited by 22 publications

(6 citation statements)

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“…Burningham et al 2013 (in preparation), data release 9 of both the UKIDSS and SDSS catalogs, and the WISE All-Sky Data Release. Brown dwarf discoveries and other data are taken from the following publications: Burgasser et al 1999Burgasser et al , 2000Burgasser et al , 2002Burgasser et al , 2003aBurgasser et al and b, 2004Burgasser et al , 2006aBurgasser et al and b, 2008Burgasser et al , 2012Burningham et al 2008Burningham et al , 2009Burningham et al , 2010aBurningham et al and b, 2011Chiu et al 2006;Cushing et al 2011;Dahn et al 2002;Delorme et al 2008a andb, 2010;Faherty et al 2012;Geballe et al 2001;Golimowski et al 2004;Harrington & Dahn 1980;Hewett et al 2006;Kirkpatrick et al 2011Kirkpatrick et al , 2012Knapp et al 2004;Leggett et al 2002Leggett et al , 2007Leggett et al , 2009Leggett et al , 2010Leggett et al , 2012Liu et al 2011Liu et al , 2012Lodieu et al 2007Lodieu et al , 2009Lucas et al 2010;Marocco et al 2010;Patten et al 2006;Pinfield et al 2008Pinfield et al , 2012Scholz ...…”

Section: Resultsmentioning

confidence: 99%

A Comparison of Near-Infrared Photometry and Spectra for Y Dwarfs With a New Generation of Cool Cloudy Models

Leggett

Morley

Marley

et al. 2013

ApJ

115

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We present Y JHK photometry, or a subset, for the six Y dwarfs discovered in WISE data by Cushing et al.. The data were obtained using NIRI on the Gemini North telescope; Y JHK were obtained for WISEP J041022.71+150248.5, WISEP J173835.52+273258.9 and WISEPC J205628.90+145953.3; Y JH for WISEPC J140518.40+553421.5 and WISEP J154151.65225025.2; Y JK for WISEP J182831.08+265037.8. We also present a far-red spectrum obtained using GMOS-North for WISEPC J205628.90+145953.3. We compare the data to Morley et al. (2012) models, which include cloud decks of sulfide and chloride condensates. We find that the models with these previously neglected clouds

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Section: Resultsmentioning

confidence: 99%

A Comparison of Near-Infrared Photometry and Spectra for Y Dwarfs With a New Generation of Cool Cloudy Models

Leggett

Morley

Marley

et al. 2013

ApJ

115

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“…The increase in the amplitude of the light curve over the past few decades is also consistent with this interpretation. The inclined orbital plane of Pluto's moon confirms a large obliquity for Pluto [Harrington and Christy, 1980;Anderson, 1978], since the moon's synchronous revolution strongly suggests that its orbit lies in Pluto's equatorial plane. Finally, 'Uranus' orbit has 51A times greater eccentricity than has Neptune's orbit; this might be viewed as evidence for a greater likelihood that a satellite was forcibly able, because the mass of the Pluto system is much smaller -ejected from the Uranian system rather than from the Neptuthan Triton's mass.…”

Section: Pluto's Originmentioning

confidence: 93%

“…Without such protection much of Pluto's mass would sublimate away, so that the present CH 4 frosts would not be visible. Therefore just the ob- Epoch of node Inclination (with respect to plane of sky at a -13 hours 30min/i --+ 10.5) Inclination (with respect to ecliptic plane) North pole Mass of system 20,000 + 1000 km 6.3867 days (assumed) 0 (assumed) 170 ø (satellite approaching at northern elongation) --1978 May 8.7 + 0.1 105 ø + 5 ø i = 115 ø a --8 hours, • = 5 o rn = 130,000,000 -l q-20,000,000 -l Data are according to Harrington and Christy [1980]. glected [Renschen, 1977].…”

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confidence: 99%

The atmospheres of the outer planets and satellites

Trafton¹

1981

Reviews of Geophysics

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This is a review of recent research results pertaining to the atmospheres of the outer planets and satellites. It includes the atmospheres ,-,em,,, o Triton, N,•p t .... 1! ..... • Titan .qatnrn and lo le•'.q neutral torus and plasma torus are covered, but Jupiter and Jupiter's magnetosphere are not. Jupiter is not included because of the number of specialized reviews which have recently become available for Jupiter. This review includes earlier Voyager 1 and 2 results for Io's atmosphere and plasma torus as well as early Pioneer 11 results for Saturn and Titan. Neither ring systems nor atmosphereless bodies are reviewed here.

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“…Charon's astrometry is listed in Table 1. Harrington & Christy (1980) reported on position measurements of Charon with respect to Pluto that predate its discovery in 1978 (Christy & Harrington 1978). Pluto and Charon were not fully resolved in the photographic plates, but it was possible to measure the image elongation and orientation and express Charon's position relative to Pluto in terms of position-angle Δθ and separation Δρ.…”

Section: Astrometric Datamentioning

confidence: 99%

Post-new-horizons Orbits and Masses for the Satellites of Pluto

Brozović,

Jacobson

2024

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We report on ephemerides for the satellites of Pluto based on the large set of astrometric measurements. Our orbit fit yielded the following masses with 1σ uncertainties: GM Pluto = 869.3 ± 0.4 km3 s−2, GM Charon = 106.1 ± 0.3 km3 s−2, GM Nix = 1.50 ± 0.52 × 10−3 km3 s−2, GM Hydra = 2.01 ± 0.27 × 10−3 km3 s−2, corresponding to the densities of ρ Pluto = 1.853 ± 0.004 g cm−3, ρ Charon = 1.705 ± 0.006 g cm−3, ρ Nix = 0.88 ± 0.31 g cm−3, and ρ Hydra = 1.21 ± 0.19 g cm−3. Masses of Kerberos and Styx remain unconstrained, and it is unlikely that we will be able to measure them even if we obtain abundant 1 mas precision astrometry during the next 20 yr. We summarize the results of orbit integration in terms of osculating and precessing ellipse model mean elements. All satellites reside in near-circular orbits, and Kerberos and Styx have 0.4 deg and 0.3 deg inclinations with respect to Charon’s orbit plane. The nodal regression periods for Kerberos and Hydra are ∼9 and ∼14 yr respectively. We found that Charon’s orbit pole can be approximated as: R.A. = 133.0073 + 0.0036T deg, and decl. = –6.2449 + 2.5 × 10−5 T deg, where T is Julian centuries from the epoch J2000, based on 5000 yr of orbit integration.

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The satellite of Pluto. II

Cited by 22 publications

References 0 publications

A Comparison of Near-Infrared Photometry and Spectra for Y Dwarfs With a New Generation of Cool Cloudy Models

A Comparison of Near-Infrared Photometry and Spectra for Y Dwarfs With a New Generation of Cool Cloudy Models

The atmospheres of the outer planets and satellites

Post-new-horizons Orbits and Masses for the Satellites of Pluto

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