XIV Latin American Regional IAU Meeting (Florianópolis/SC, Brazil, 25-30 November 2013) Editors: A. Mateus, J. Gregorio-Hetem & R. Cid Fernandes Amshr nnnbr r ie.Dniyi given is Density given. are nanobar’ in ’Atmosphere umn eMxA(ei eConferencias) de (Serie RevMexAA 7 E 02-0 i eJnio J rzl ([email protected]). Brazil. RJ, Janeiro, de Rio 20921-400 CEP 77, nk,where km, in iis(’ limits ftersetv vn.Lwrlmt (’ limits Lower event. respective the of System. Solar of the of understanding evolution the dynamical to the invaluable are prop- physical erties their about Information al. 2014). et (Camargo predictions make con- reliable to long-term process, catalogues star a astrometric developed summa- structing have We Pluto work all (excluding system). from This occultations far, TNO so derived, derivedetected results shape. main to the and occultations rizes stellar size use their Nep- We beyond orbiting System tune. Solar the of fos- sils small are (TNOs) objects Transneptunian 195)20 KX 2002 (119951) 566 02TX 2002 (55636) 167)Makemake (136472) 289)20 AZ 2003 (208996) 289)20 AZ 2003 (208996) AZ 2003 (208996) 892 03VS 2003 (84922) 119 Chariklo (10199) 1 4 3 2 500 Quaoar (50000) Quaoar (50000) Quaoar (50000) Quaoar (50000) Quaoar (50000) 200 Varuna (20000) 200 Varuna (20000) Varuna (20000) 80)Asbolus (8405) 937 Sedna (90377) ntetbeblw h aecrepnst that to corresponds date the below, table the In bevtoi ainlMT,RaGnrlJos´e Cristino General Rua Observat´orio Nacional/MCTI, nttt eAto´sc eAdlcı,Gaaa Spain. Andaluc´ıa, Astrof´ısica Granada, de France. de Meudon, Instituto Paris, de Observatoire Brazil. LESIA, Janeiro, de Rio Valongo/UFRJ, Observat´orio do TLA CUTTOSB RNNPUINADCENTAURS AND TRANSNEPTUNIAN BY OCCULTATIONS STELLAR 169)Eris (136199) 169)Eris (136199) 05TV 2005 .Braga-Ribas F. R BET:RSLSFO OETA 0OSRE EVENTS OBSERVED 10 THAN MORE FROM RESULTS OBJECTS: Object equiv < ftebd baees’ oblateness body the of ) ’ 189 = a a 300 √ 2 84 84 84 14 stesm-ao xs,adupper and axis), semi-major the is 1 − Nov/2012 1 May/2011 Aug/2013 Mar/2012 Nov/2013 Nov/2010 Apr/2011 Dec/2013 Dec/2013 Jun/2013 Oct/2012 Oct/2009 Feb/2012 Jan/2011 Jan/2013 Feb/2012 Feb/2011 Feb/2014 Jan/2013 Feb/2010 Jul/2013 .Vieira-Martins R. , ǫ Date teojc qiaetradius equivalent object (the ‡ > [ 555.5 > 685 > 1163 143 286 R 127 343 732 > > > > > ∼ > 207 28 ∼ < > equiv 350 198 535 200 380 335 336 − +445 343 565 20 ± - - - - - ± ± ± ± ± ± 155 ± , ± ǫ & 3 5 ø 11 . 0.0895 2.3 0.33 4 0.37 7 0 9 ø ø ø ø ø ø ø 44 ,’leo and ’Albedo’ ’, 1 0 0 6 ø ø ø ø – (2014) 3–3 , 1,2 > > 22 . .Assafin M. , )i col- in ’) 05 ± ∼ < 6 0.29 0.56 ± ± ± 0.88 0 ǫ ------+0 − ] .0 0.031 0.002 0 ø 0.1 0 . § § . . 02 - 025 016 § § 0.147 0.109 0.77 2 .I .Camargo B. I. J. , leoDniyAtmosph. Density Albedo . < > 96 .2-- - 0.22 .4-- - 0.04 ± ± ± ± 02 aue 9,56; 566 ; 491, 897 Nature, 465, Nature, 2012, 2010, al. et liot 2 993; 42, #224.12; BAAS, DOI:10.1038/nature13155; Nature, 2014, ngcm g in l 03 p,73 26.; 773, ApJ, 2013, al. C-htcascl C-cl lsia;R-resonant - calculated, R or classical; applicable cold not detached; - - - CC ( D classical; scattered; hot - - S HC Centaurs; - Cnt classes: n btat,4,#402.01; 44, 1060; Abstracts, ing Meeting, Joint EPSC-DPS BR12 2011, al. et Ribas nlsdnrpbihds far. so published nor analysed § adle l 02 PC 482; EPSC, 2012, al. et Candal A37; +0 +0 − − - - - .0 - - 0.005 .31.7 0.03 .0 0 0.007 .0 1.99 0.007 0 0 apparent . . . . 15 09 06 04 References prel. rg-ia ta.21,ASDSMeet- AAS/DPS 2012, al. et Braga-Ribas : − 2 . S11 3 52 . oun’ls’ ersnstedynamical the represents ’Class’, Column . 76 orsod oeet o completely not events to corresponds : ǫ ± ± ± +0 − - , iad ta.21,Ntr,48 493. 478, Nature, 2011, al. et Sicardy : 0.42 0.3 0 0 ‡ . . 30 . 17 05 iulobservation). visual aag ta.21,AA 561, A&A, 2014, al. et Camargo : 1 .Sicardy B. , S10 < < < < 33 12(CH 1(CH 21 · iad ta.21,BAAS, 2010, al. et Sicardy : (N 1 10 - 6 BR14 (Xe) 2 P11 4 ) 4 ) ) BR13 3 n .L Ortiz L. J. and , esne l 2011, al. et Person : Class Cnt. Cnt. rg-ia tal. et Braga-Ribas : HC HC HC HC HC HC HC HC HC HC HC CC CC D R R R S S ø AC12 O12 iiu radius, minimum rg-ia et Braga-Ribas : BR11 Reference AC12 BR14 BR12 BR11 BR13 BR13 BR13 ri tal. et Ortiz : prel. prel. prel. prel. prel. prel. prel. prel. prel. O12 E10 P11 S10 S11 Alvarez- : Braga- : E10 4 El- : 3