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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21b.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP5W34M/3FA8GFJ
Repositorysid.inpe.br/mtc-m21b/2013/11.27.17.01.19
Last Update2014:01.15.11.59.40 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m21b/2013/11.27.17.01.20
Metadata Last Update2018:06.04.03.14.17 (UTC) administrator
DOI10.1088/0004-637X/773/1/26
ISSN0004-637X
1538-4357
Labelisi 2013-11
Citation KeyBraga-RibasSOLTLVCABVCMMEAURBARJGVMSSAJMSTKFCCNAGPGRWMTDLTCBPMIRHL:2013:SiShAl
TitleThe size, shape, albedo, density, and atmospheric limit of transneptunian object (50000) quaoar from multi-chord stellar occultations
Year2013
MonthAug.
Access Date2024, Apr. 20
Secondary TypePRE PI
Number of Files1
Size789 KiB
2. Context
Author 1 Braga-Ribas, F.
 2 Sicardy, B.
 3 Ortiz, J. L.
 4 Lellouch, E.
 5 Tancredi, G.
 6 Lecacheux, J.
 7 Vieira-Martins, R.
 8 Camargo, J. I. B.
 9 Assafin, M.
10 Behrend, R.
11 Vachier, F.
12 Colas, F.
13 Morales, N.
14 Maury, A.
15 Emilio, M.
16 Amorim, A.
17 Unda-Sanzana, E.
18 Roland, S.
19 Bruzzone, S.
20 Almeida, L. A.
21 Rodrigues, Claudia Vilega
22 Jacques, C.
23 Gil-Hutton, R.
24 Vanzi, L.
25 Milone, Andre de Castro
26 Schoenell, W.
27 Salvo, R.
28 Almenares, L.
29 Jehin, E.
30 Manfroid, J.
31 Sposetti, S.
32 Tanga, P.
33 Klotz, A.
34 Frappa, E.
35 Cacella, P.
36 Colque, J. P.
37 Neves, C.
38 Alvarez, E. M.
39 Gillon, M.
40 Pimentel, E.
41 Giacchini, B.
42 Roques, F.
43 Widemann, T.
44 Magalhaes, V. S.
45 Thirouin, A.
46 Duffard, R.
47 Leiva, R.
48 Toledo, I.
49 Capeche, J.
50 Beisker, W.
51 Pollock, J.
52 Montaña, Carlos Eduardo Cedeño
53 Ivarsen, K.
54 Reichart, D.
55 Haislip, J.
56 Lacluyze, A.
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Affiliation 1 Observ Nacl, Rio De Janeiro, Brazil.; Observ Paris, LESIA, F-92195 Meudon, France.
 2 Observ Paris, LESIA, F-92195 Meudon, France.; Univ Paris 06, F-75252 Paris, France.
 3 Inst Astrofis Andalucia, CSIC, E-18080 Granada, Spain.
 4 Observ Paris, LESIA, F-92195 Meudon, France.
 5 Observ Astron Los Molinos, U-12400 Montevideo, Uruguay.
 6 Observ Paris, LESIA, F-92195 Meudon, France.
 7 Observ Nacl, Rio De Janeiro, Brazil.; Observ Paris, IMCCE, F-75014 Paris, France.; Univ Fed Rio de Janeiro, Observ Valongo, Rio de Janeiro, Brazil.
 8 Observ Nacl, Rio De Janeiro, Brazil.
 9 Univ Fed Rio de Janeiro, Observ Valongo, Rio de Janeiro, Brazil.
10 Observ Geneva, CH-1290 Sauverny, Switzerland.
11 Observ Paris, IMCCE, F-75014 Paris, France.
12 Observ Paris, IMCCE, F-75014 Paris, France.
13 Inst Astrofis Andalucia, CSIC, E-18080 Granada, Spain.
14 San Pedro de Atacama Celestial Explorat, San Pedro De Atacama, Chile.
15 Univ Estadual Ponta Grossa, Ponta Grossa, Brazil.
16 Univ Fed Santa Catarina, Florianopolis, SC, Brazil.
17 Univ Antofagasta, Unidad Astron, Antofagasta, Chile.
18 Observ Astron Los Molinos, U-12400 Montevideo, Uruguay.
19 Observ Astron Los Molinos, U-12400 Montevideo, Uruguay.
20 Inst Nacl Pesquisas Espaciais, DAS, BR-12201 Sao Jose Dos Campos, Brazil.
21 Instituto Nacional de Pesquisas Espaciais (INPE)
22 Ctr Estudos Astron Minas Gerais CEAMIG, Belo Horizonte, MG, Brazil.
23 Complejo Astron El Leoncito, San Juan, Argentina.; San Juan Natl Univ, San Juan, Argentina.
24 Pontificia Univ Catolica Chile, Dept Elect Engn, Santiago, Chile.; Pontificia Univ Catolica Chile, Ctr Astroengn, Santiago, Chile.
25 Instituto Nacional de Pesquisas Espaciais (INPE)
26 Inst Astrofis Andalucia, CSIC, E-18080 Granada, Spain.; Univ Fed Santa Catarina, Florianopolis, SC, Brazil.
27 Observ Astron Los Molinos, U-12400 Montevideo, Uruguay.
28 Observ Astron Los Molinos, U-12400 Montevideo, Uruguay.
29 Univ Liege, Inst Astrophys, B-4000 Liege, Belgium.
30 Univ Liege, Inst Astrophys, B-4000 Liege, Belgium.
31 Gnosca Observ, Gnosca, Switzerland.
32 Univ Nice Sophia Antipolis, CNRS, Observ Cote Azur, Lab Lagrange,UMS7293, F-06304 Nice 4, France.
33 Univ Toulouse, UPS OMP, IRAP, F-31000 Toulouse, France.
34 Euraster, F-42000 St Etienne, France.
35 Rede Astron Observac, Brasilia, DF, Brazil.
36 Univ Antofagasta, Unidad Astron, Antofagasta, Chile.
37 Univ Estadual Ponta Grossa, Ponta Grossa, Brazil.
38 Observ Los Algarrobos, Salto, Uruguay.
39 Univ Liege, Inst Astrophys, B-4000 Liege, Belgium.
40 Ctr Estudos Astron Minas Gerais CEAMIG, Belo Horizonte, MG, Brazil.
41 Ctr Estudos Astron Minas Gerais CEAMIG, Belo Horizonte, MG, Brazil.
42 Observ Paris, LESIA, F-92195 Meudon, France.
43 Observ Paris, LESIA, F-92195 Meudon, France.
44 Inst Nacl Pesquisas Espaciais, DAS, BR-12201 Sao Jose Dos Campos, Brazil.
45 Inst Astrofis Andalucia, CSIC, E-18080 Granada, Spain.
46 Inst Astrofis Andalucia, CSIC, E-18080 Granada, Spain.
47 Pontificia Univ Catolica Chile, Dept Elect Engn, Santiago, Chile.; Pontificia Univ Catolica Chile, Ctr Astroengn, Santiago, Chile.
48 Joint ALMA Observ, Santiago, Chile.
49 Observ Astron Los Molinos, U-12400 Montevideo, Uruguay.
50 Int Occultat Timing Assoc, European Sect, D-30459 Hannover, Germany.
51 Appalachian State Univ, Dept Phys & Astron, Boone, NC 28608 USA.
52 Instituto Nacional de Pesquisas Espaciais (INPE)
53 Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA.
54 Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA.
55 Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA.
56 Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA.
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e-Mail Addressmarcelo.pazos@inpe.br
JournalAstrophysical Journal
Volume773
Number1
Secondary MarkA1 A1 A1 A2
History (UTC)2018-06-04 03:14:17 :: administrator -> marcelo.pazos@inpe.br :: 2013
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsKuiper belt objects: individual (50000
Quaoar)
occultations
planets and satellites: atmospheres
planets and satellites: fundamental parameters
AbstractWe present results derived from the first multi-chord stellar occultations by the transneptunian object (50000) Quaoar, observed on 2011 May 4 and 2012 February 17, and from a single-chord occultation observed on 2012 October 15. If the timing of the five chords obtained in 2011 were correct, then Quaoar would possess topographic features (crater or mountain) that would be too large for a body of this mass. An alternative model consists in applying time shifts to some chords to account for possible timing errors. Satisfactory elliptical fits to the chords are then possible, yielding an equivalent radius R-equiv = 555 +/- 2.5 km and geometric visual albedo p(V) = 0.109 +/- 0.007. Assuming that Quaoar is a Maclaurin spheroid with an indeterminate polar aspect angle, we derive a true oblateness of epsilon = 0.087(-0.0175)(+0.0268), an equatorial radius of 569(-17)(+24) km, and a density of 1.99 +/- 0.46 g cm(-3). The orientation of our preferred solution in the plane of the sky implies that Quaoar's satellite Weywot cannot have an equatorial orbit. Finally, we detect no global atmosphere around Quaoar, considering a pressure upper limit of about 20 nbar for a pure methane atmosphere.
AreaCEA
Arrangement 1urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > The size, shape,...
Arrangement 2urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > AST > The size, shape,...
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4. Conditions of access and use
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5. Allied materials
Mirror Repositoryiconet.com.br/banon/2006/11.26.21.31
Next Higher Units8JMKD3MGPCW/3ETR8EH
8JMKD3MGPCW/3F2NE4L
Citing Item Listsid.inpe.br/mtc-m21/2012/07.13.14.40.02 3
sid.inpe.br/mtc-m21/2012/07.13.14.43.51 1
DisseminationWEBSCI; PORTALCAPES; MGA; COMPENDEX; SCOPUS.
Host Collectionsid.inpe.br/mtc-m21b/2013/09.26.14.25.20
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