Synchronous Rotation in the (136199) Eris-Dysnomia System

被引：12

作者：

Bernstein, Gary J. ^{[1
]}

Holler, Bryan ^{[2
]}

Navarro-Escamilla, Rosario H. ^{[1
]}

Bernardinelli, Pedro ^{[3
,4
]}

Abbott, T. M. C. ^{[5
]}

Aguena, M. ^{[6
]}

Allam, S. ^{[7
]}

Alves, O. ^{[8
]}

Andrade-Oliveira, F. ^{[8
]}

Annis, J. ^{[7
]}

Bacon, D. ^{[9
]}

Brooks, D. ^{[10
]}

Burke, D. L. ^{[11
,12
]}

Rosell, A. Carnero ^{[6
,13
,14
]}

Carretero, J. ^{[15
]}

da Costa, L. N. ^{[6
]}

Pereira, M. E. S. ^{[16
]}

De Vicente, J. ^{[17
]}

Desai, S. ^{[18
]}

Doel, P. ^{[10
]}

Drlica-Wagner, A. ^{[7
,19
,20
]}

Everett, S. ^{[21
]}

Ferrero, I. ^{[22
]}

Frieman, J. ^{[7
]}

Garcia-Bellido, J. ^{[23
]}

Gerdes, D. W. ^{[8
,24
]}

Gruen, D. ^{[25
]}

Gutierrez, G. ^{[7
]}

Herner, K. ^{[7
]}

Hinton, S. R. ^{[26
]}

Hollowood, D. L. ^{[27
]}

Honscheid, K. ^{[28
,29
]}

James, D. J. ^{[30
]}

Kuehn, K. ^{[31
,32
]}

Kuropatkin, N. ^{[7
]}

Marshall, J. L. ^{[33
,34
]}

Mena-Fernandez, J. ^{[17
]}

Miquel, R. ^{[15
,35
]}

Ogando, R. L. C. ^{[36
]}

Pieres, A. ^{[6
,36
]}

Malagon, A. A. Plazas ^{[37
]}

Raveri, M. ^{[38
,39
]}

Reil, K. ^{[12
]}

Sanchez, E. ^{[17
]}

Sevilla-Noarbe, I. ^{[17
]}

Smith, M. ^{[40
]}

Soares-Santos, M. ^{[8
]}

Suchyta, E. ^{[41
]}

Swanson, M. E. C. ^{[40
]}

Wiseman, P. ^{[40
]}

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[2] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[3] Univ Washington, DIRAC Inst, 3910 15th Ave NE, Seattle, WA 98195 USA

[4] Univ Washington, Dept Astron, 3910 15th Ave NE, Seattle, WA 98195 USA

[5] NSFs Natl Opt Infrared Astron Res Lab, Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile

[6] Lab Interinst E Astron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil

[7] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

[8] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[9] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, England

[10] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[11] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, POB 2450, Stanford, CA 94305 USA

[12] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[13] Inst Astrofis Canarias, E-38205 Tenerife, Spain

[14] Univ Laguna, Dept Astrofis, E-38206 Tenerife, Spain

[15] Barcelona Inst Sci & Technol, Inst Fis Altes Energies IFAE, Campus UAB, E-08193 Bellaterra, Barcelona, Spain

[16] Univ Hamburg, Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg, Germany

[17] Ctr Invest Energet Medioambientales & Tecnol CIEMA, Madrid, Spain

[18] IIT Hyderabad, Dept Phys, Kandi 502285, Telangana, India

[19] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[20] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

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

[22] Univ Oslo, Inst Theoret Astrophys, POB 1029 Blindern, NO-0315 Oslo, Norway

[23] Univ Autonoma Madrid, Inst Fis Teor UAM CSIC, E-28049 Madrid, Spain

[24] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

[25] Ludwig Maximilians Univ Munchen, Univ Observ, Fac Phys, Scheinerstr 1, D-81679 Munich, Germany

[26] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia

[27] Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA

[28] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

[29] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[30] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA

[31] Macquarie Univ, Australian Astron Opt, N Ryde, NSW 2113, Australia

[32] Lowell Observ, 1400 Mars Hill Rd, Flagstaff, AZ 86001 USA

[33] Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 USA

[34] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

[35] Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain

[36] Observ Nacl, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil

[37] Princeton Univ, Dept Astrophys Sci, Peyton Hall, Princeton, NJ 08544 USA

[38] Univ Genoa, Dept Phys, Via Dodecaneso 33, I-16146 Genoa, Italy

[39] INFN, Via Dodecaneso 33, I-16146 Genoa, Italy

[40] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England

[41] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA

来源：

PLANETARY SCIENCE JOURNAL | 2023年 / 4卷 / 06期

基金：

欧洲研究理事会; 美国国家科学基金会; 英国科学技术设施理事会;

关键词：

KUIPER-BELT BINARIES; TRANS-NEPTUNIAN OBJECTS; GIANT IMPACT ORIGIN; DARK ENERGY SURVEY; DWARF PLANET ERIS; SOLAR-SYSTEM; PHASE CURVES; DATA RELEASE; LOW-MASS; PLUTO;

D O I：

10.3847/PSJ/acdd5f

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We combine photometry of Eris from a 6 month campaign on the Palomar 60 inch telescope in 2015, a 1 month Hubble Space Telescope WFC3 campaign in 2018, and Dark Energy Survey data spanning 2013-2018 to determine a light curve of definitive period 15.771 & PLUSMN; 0.008 days (1 & sigma; formal uncertainties), with nearly sinusoidal shape and peak-to-peak flux variation of 3%. This is consistent at part-per-thousand precision with the P = 15.785 90 & PLUSMN; 0.00005 day sidereal period of Dysnomia's orbit around Eris, strengthening the recent detection of synchronous rotation of Eris by Szakats et al. with independent data. Photometry from Gaia are consistent with the same light curve. We detect a slope of 0.05 & PLUSMN; 0.01 mag per degree of Eris's brightness with respect to illumination phase averaged across g, V, and r bands, intermediate between Pluto's and Charon's values. Variations of 0.3 mag are detected in Dysnomia's brightness, plausibly consistent with a double-peaked light curve at the synchronous period. The synchronous rotation of Eris is consistent with simple tidal models initiated with a giant-impact origin of the binary, but is difficult to reconcile with gravitational capture of Dysnomia by Eris. The high albedo contrast between Eris and Dysnomia remains unexplained in the giant-impact scenario.

引用

页数：17

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