Marcelo Assafin
Instituição:
Universidade Federal do Rio de Janeiro
Centro:
Centro de Ciências Matemáticas e da Natureza
Unidade:
Observatório do Valongo
Departamento:
Departamento de Astronomia/Valongo
Formação:
-
United States Naval Observatory
| Pós-Doutorado | 2001 - 2002
-
Observatório Nacional
Astronomia | Doutorado | 1990 - 1996
-
Observatório Nacional
Astronomia | Mestrado | 1988 - 1990
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Universidade Federal do Rio de Janeiro
Astronomia | Graduação | 1983 - 1988
Laboratórios:
Nenhum laboratório cadastrado
Nuvens de Palavras:
Artigos:
(92.63% artigos com DOI)
| Titulo | DOI | Ano |
|---|---|---|
| A dense ring of the trans-Neptunian object Quaoar outside its Roche limit | 10.1038/s41586-022-05629-6 | 2023 |
| The multichord stellar occultation by the centaur Bienor on January 11, 2019 | 10.1051/0004-6361/202243214 | 2023 |
| The two rings of (50000) Quaoar | 10.1051/0004-6361/202346365 | 2023 |
| Constraints on (2060) Chiron’s size, shape, and surrounding material from the November 2018 and September 2019 stellar occultations | 10.1051/0004-6361/202346749 | 2023 |
| Changing material around (2060) Chiron revealed by an occultation on December 15, 2022 | 10.1051/0004-6361/202347025 | 2023 |
| A large topographic feature on the surface of the trans-Neptunian object (307261) 2002 MS 4 measured from stellar occultations | 10.1051/0004-6361/202346892 | 2023 |
| Physical properties of the trans-Neptunian object (38628) Huya from a multi-chord stellar occultation | 10.1051/0004-6361/202141546 | 2022 |
| The multichord stellar occultation on 2019 October 22 by the trans-Neptunian object (84922) 2003 VS 2 | 10.1051/0004-6361/202141842 | 2022 |
| Milliarcsecond Astrometry for the Galilean Moons Using Stellar Occultations | 10.3847/1538-3881/ac6108 | 2022 |
| Constraints on the structure and seasonal variations of Triton’s atmosphere from the 5 October 2017 stellar occultation and previous observations | 10.1051/0004-6361/202141443 | 2022 |
| The five largest satellites of Uranus: Astrometric observations spread over 29 years at the Pico dos Dias Observatory | 10.1016/j.pss.2021.105376 | 2022 |
| Refined physical parameters for Chariklo’s body and rings from stellar occultations observed between 2013 and 2020 | 10.1051/0004-6361/202141543 | 2021 |
| Pluto’s Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal | 10.3847/2041-8213/ac4249 | 2021 |
| The large trans-Neptunian object 2002 TC 302 from combined stellar occultation, photometry, and astrometry data | 10.1051/0004-6361/202038046 | 2020 |
| A multi-chord stellar occultation by the large trans-Neptunian object (174567) Varda | 10.1051/0004-6361/202038526 | 2020 |
| Stellar occultations enable milliarcsecond astrometry for Trans-Neptunian objects and Centaurs | 10.1051/0004-6361/202039054 | 2020 |
| The 2017 May 20th stellar occultation by the elongated centaur (95626) 2002 GZ32 | 10.1093/mnras/staa3881 | 2020 |
| The first observed stellar occultations by the irregular satellite Phoebe (Saturn IX) and improved rotational period | 10.1093/mnras/stz3463 | 2020 |
| Astrometry and Occultation Predictions to Trans-Neptunian and Centaur Objects Observed within the Dark Energy Survey | 10.3847/1538-3881/aafb37 | 2019 |
| Lower atmosphere and pressure evolution on Pluto from ground-based stellar occultations, 1988-2016 | 10.1051/0004-6361/201834281 | 2019 |
| Pluto's ephemeris from ground-based stellar occultations (1988-2016) | 10.1051/0004-6361/201834958 | 2019 |
| First stellar occultation by the Galilean moon Europa and upcoming events between 2019 and 2021 | 10.1051/0004-6361/201935500 | 2019 |
| The Trans-Neptunian Object (84922) 2003 VS 2 through Stellar Occultations | 10.3847/1538-3881/ab3b05 | 2019 |
| Mutual approximations between the five main moons of Uranus | 10.1093/mnras/stz2841 | 2019 |
| The 2014-2015 Brazilian mutual phenomena campaign for the Jovian satellites and improved results for the 2009 events | 10.1016/j.pss.2019.104736 | 2019 |
| Database on detected stellar occultations by small outer Solar System objects | 10.1088/1742-6596/1365/1/012024 | 2019 |
| The future of stellar occultations by distant solar system bodies: Perspectives from the Gaia astrometry and the deep sky surveys | 10.1016/j.pss.2018.02.014 | 2018 |
| Update of membership and mean proper motion of open clusters from UCAC5 catalogue | 10.1093/mnras/sty1456 | 2018 |
| APPROX - mutual approximations between the Galilean moons: the 2016-2018 observational campaign | 10.1093/mnras/sty3040 | 2018 |
| Study of the Plutino Object (208996) 2003 AZ 84 from Stellar Occultations: Size, Shape, and Topographic Features | 10.3847/1538-3881/aa74e9 | 2017 |
| The Structure of Chariklo’s Rings from Stellar Occultations | 10.3847/1538-3881/aa830d | 2017 |
| Size and Shape of Chariklo from Multi-epoch Stellar Occultations | 10.3847/1538-3881/aa8956 | 2017 |
| The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation | 10.1038/nature24051 | 2017 |
| PLUTO’S ATMOSPHERE FROM THE 2015 JUNE 29 GROUND-BASED STELLAR OCCULTATION AT THE TIME OF THE NEW HORIZONS FLYBY | 10.3847/2041-8205/819/2/l38 | 2016 |
| Astrometry of mutual approximations between natural satellites. Application to the Galilean moons | 10.1093/mnras/stw1244 | 2016 |
| New orbits of irregular satellites designed for the predictions of stellar occultations up to 2020, based on thousands of new observations | 10.1093/mnras/stw1738 | 2016 |
| RESULTS FROM THE 2014 NOVEMBER 15TH MULTI-CHORD STELLAR OCCULTATION BY THE TNO (229762) 2007 UK 126 | 10.3847/0004-6256/152/6/156 | 2016 |
| Composition, mineralogy, and porosity of multiple asteroid systems from visible and near-infrared spectral data | 10.1016/j.icarus.2014.08.040 | 2015 |
| The non-convex shape of (234) Barbara, the first Barbarian | 10.1093/mnras/stv229 | 2015 |
| Evidence that Pluto’s atmosphere does not collapse from occultations including the 2013 May 04 event | 10.1016/j.icarus.2014.03.026 | 2015 |
| Astrometric positions for 18 irregular satellites of giant planets from 23 years of observations | 10.1051/0004-6361/201526273 | 2015 |
| Results of two multichord stellar occultations by dwarf planet (1) Ceres | 10.1093/mnras/stv1081 | 2015 |
| PLUTO’s ATMOSPHERE FROM STELLAR OCCULTATIONS IN 2012 AND 2013 | 10.1088/0004-637x/811/1/53 | 2015 |
| Astrometry of the main satellites of Uranus: 18 years of observations | 10.1051/0004-6361/201526385 | 2015 |
| The astrometric -FUN-SSO observation campaign of 99942 Apophis | 10.1051/0004-6361/201425603 | 2015 |
| Orbit determination of trans-Neptunian objects and Centaurs for the prediction of stellar occultations | 10.1051/0004-6361/201526498 | 2015 |
| Proper motions of the optically visible open clusters based on the UCAC4 catalog | 10.1051/0004-6361/201323226 | 2014 |
| A ring system detected around the Centaur (10199) Chariklo | 10.1038/nature13155 | 2014 |
| Pluto: improved astrometry from 19 years of observations | 10.1051/0004-6361/201424275 | 2014 |
| The PHEMU09 catalogue and astrometric results of the observations of the mutual occultations and eclipses of the Galilean satellites of Jupiter made in 2009 | 10.1051/0004-6361/201423854 | 2014 |
| An exploration of Pluto’s environment through stellar occultations | 10.1051/0004-6361/201321836 | 2014 |
| Candidate stellar occultations by Centaurs and trans-Neptunian objects up to 2014 | 10.1051/0004-6361/201322579 | 2014 |
| Analysis of 25 mutual eclipses and occultations between the Galilean satellites observed from Brazil in 2009 | 10.1093/mnras/stt447 | 2013 |
| Rio survey of optical astrometric positions for 300 ICRF2 sources and the current optical/radio frame link status before Gaia | 10.1093/mnras/stt081 | 2013 |
| THE SIZE, SHAPE, ALBEDO, DENSITY, AND ATMOSPHERIC LIMIT OF TRANSNEPTUNIAN OBJECT (50000) QUAOAR FROM MULTI-CHORD STELLAR OCCULTATIONS | 10.1088/0004-637x/773/1/26 | 2013 |
| The occultation of HIP 107302 by Jupiter | 10.1051/0004-6361/201321811 | 2013 |
| Astrometric results of observations of mutual occultations and eclipses of the Uranian satellites in 2007 | 10.1051/0004-6361/201322039 | 2013 |
| Astrometric results of observations of mutual occultations and eclipses of the Saturnian satellites in 2009 | 10.1051/0004-6361/201118509 | 2012 |
| Asteroid (99942) Apophis: new predictions of Earth encounters for this potentially hazardous asteroid | 10.1051/0004-6361/201117981 | 2012 |
| Candidate stellar occultations by large trans-Neptunian objects up to 2015 | 10.1051/0004-6361/201118349 | 2012 |
| Multiple asteroid systems: Dimensions and thermal properties from Spitzer Space Telescope and ground-based observations | 10.1016/j.icarus.2012.09.013 | 2012 |
| Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation | 10.1038/nature11597 | 2012 |
| CONSTRAINTS ON CHARON'S ORBITAL ELEMENTS FROM THE DOUBLE STELLAR OCCULTATION OF 2008 JUNE 22 | 10.1088/0004-6256/141/2/67 | 2011 |
| Triplicity and physical characteristics of Asteroid (216) Kleopatra | 10.1016/j.icarus.2010.11.016 | 2011 |
| The influence of radio-extended structures on offsets between the optical and VLBI positions of sources in the ICRF2 | 10.1051/0004-6361/201016201 | 2011 |
| A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation | 10.1038/nature10550 | 2011 |
| Apparent close approaches between near-Earth asteroids and quasars | 10.1051/0004-6361/200913172 | 2010 |
| Precise predictions of stellar occultations by Pluto, Charon, Nix, and Hydra for 2008¿2015 | 10.1051/0004-6361/200913690 | 2010 |
| OBSERVATIONS AND ANALYSIS OF MUTUAL EVENTS BETWEEN THE URANUS MAIN SATELLITES | 10.1088/0004-6256/137/4/4046 | 2009 |
| New insights on the binary Asteroid 121 Hermione? | 10.1016/j.icarus.2009.04.032 | 2009 |
| The large quasar reference frame (LQRF) | 10.1051/0004-6361/200912041 | 2009 |
| Instrumental and digital coronagraphy for the observation of the Uranus satellites¿ upcoming mutual events | 10.1016/j.pss.2007.05.030 | 2008 |
| Figure of the double Asteroid 90 Antiope from adaptive optics and lightcurve observations | 10.1016/j.icarus.2006.10.030 | 2007 |
| Optical astrometric positions of 59 northern ICRF radio sources | 10.1051/0004-6361:20078441 | 2007 |
| Proper motion determination of open clusters based on the UCAC2 catalogue | 10.1051/0004-6361:20052741 | 2006 |
| Charon's size and an upper limit on its atmosphere from a stellar occultation | 10.1038/nature04351 | 2006 |
| Investigation on the southern part of the high density astrometric catalogs USNO B1.0, 2MASS and UCAC2 | 10.1051/0004-6361:20041477 | 2005 |
| Astrometry of International Celestial Reference Frame Sources Using the Second US Naval Observatory CCD Astrograph Catalog | 10.1086/429937 | 2005 |
| Optical Positions of ICRF Sources Using UCAC Reference Stars | 10.1086/374630 | 2003 |
| A Pattern of Noncoincidence between Radio and Optical Positions of International Celestial Reference Frame Sources | 10.1086/341163 | 2002 |
| Investigation of USNO?A2.0 Catalog Positions | 10.1086/320468 | 2001 |
| Optical Positions for a Sample of ICRF Sources | 10.1086/301252 | 2000 |
| Early Radio Positions of Stars | 10.1086/300684 | 1999 |
| Observations of radio stars at the Valinhos CCD Meridian Circle | 10.1051/aas:1999233 | 1999 |
| Astrometric CCD Positions for Extragalactic Radiosources | 10.1086/118444 | 1997 |
| A Method to Improve Guide Star Catalogue Positions with Astrometric Catalogs | 10.1086/118361 | 1997 |
| Optical positions of radio emitting stars | 10.1051/aas:1996160 | 1996 |
| POSITION OF NEPTUNIAN SATELLITES | 1996 | |
| The study of proper motions in the field of the galactic cluster NGC 7243 | 1996 | |
| A systematic study of the reconciliation between the optical and radio reference systems | 1996 | |
| A new method to obtain astrometric positions by CCD observations | 1996 | |
| Linking the radio and optical reference frames | 1994 | |
| OPTICAL ASTROMETRIC POSITIONS OF SOUTHERN QUASARS | 1992 | |
| A study of polynomial models for astrographic plate reductions | 10.1086/133018 | 1992 |
| Modelagem do Campo da Câmara Astrográfica da E.A.M.C. | 1990 |
Eventos:
(5.67% eventos com DOI)
| Titulo | DOI | Ano |
|---|---|---|
| Size, shape, and topography of TNOs from stellar occultations: the case of (307261) 2002 MS4 | 2022 | |
| Search for confine material around the TNO (50000) Quaoar | 2022 | |
| Physical properties of the trans-Neptunian binary 2000 YW134 | 2022 | |
| Search for rings around the large Trans-Neptunian Object (50000) Quaoar | 2022 | |
| The 11 November 2021 multi-chord stellar occultation by trans-Neptunian object (119951) 2002 TC302 | 2022 | |
| Unveiling the Kuiper belt from the JWST through stellar occultations | 2022 | |
| The Trans-Neptunian Object (19521) Chaos as seen from stellar occultations and photometry observations | 2022 | |
| Recent results of stellar occultations by (60558) Echeclus | 2022 | |
| The first multichord stellar occultation by the trans-Neptunian Binary (82075) 2000 YW134 | 2022 | |
| Evidence of topographic features on (307261) 2002 MS4 surface | 2021 | |
| Physical Characterization of Trans-Neptunian Object (119951) 2002 KX14 from Stellar Occultation and Photometric Observations | 2021 | |
| Physical properties of Hiʻiaka from stellar occultation data | 2021 | |
| The January 11th, 2019 stellar occultation by the elongated centaur Bienor | 2020 | |
| Results on stellar occultations by (307261) 2002 MS4 | 2020 | |
| The intriguing shape of Bienor | 2020 | |
| Triton's temperature profile and time evolution from the October 5th 2017 stellar occultation | 2019 | |
| Three Stellar Occultations by the Plutino Object (84922) 2003 VS2 | 2019 | |
| The stellar occultation by the TNO (174567) Varda of September 10, 2018: size, shape and atmospheric constraints | 2019 | |
| Pluto's ephemeris from stellar occultations | 2019 | |
| Studying Centaur and Trans-Neptunian objects using stellar occultation: precise astrometric positions | 2019 | |
| The first stellar occultations by irregular satellites | 2019 | |
| Prediction of stellar occultations by distant Solar System objects with Gaia | 2019 | |
| Prediction of stellar occultations by distant solar system bodies in the Gaia era | 2018 | |
| Solar system astrometry, Gaia, and the large surveys - a huge step ahead to stellar occultations by distant small solar system bodies | 2018 | |
| Stellar Occultation of Triton on October 5th, 2017 | 2018 | |
| Chariklo's body and ring system: three multi-chord stellar occultations in 2017 | 2018 | |
| The 19th of July 2016 Multi-Chord Stellar Occultation by Pluto - A European PRO-AM cooperation | 2017 | |
| The November 14th, 2014 Stellar Occultation by the TNO 2007UK126 | 2015 | |
| Lessons learned from stellar occultations by Trans-Neptunian Objects and prospects for the future | 2014 | |
| SPARC4 A simultaneous polarimeter and rapid camera in 4 bands | 10.1063/1.3701935 | 2012 |
| Concept of SPARC4: a simultaneous polarimeter and rapid camera in 4 bands | 10.1117/12.924976 | 2012 |
| The 2009 occultation of the bright star 45 Cap by Jupiter | 2012 | |
| The stellar occultation by Makemake on 2011 April 23 | 2011 | |
| Size, density, albedo and atmosphere limit of dwarf planet Eris from a stellar occultation | 2011 | |
| Stellar Occultations by TNOs: the January 08, 2011 by (208996) 2003 AZ84 and the May 04, 2011 by (50000) Quaoar | 2011 | |
| Asteroid Apophis orbit from recent observations | 2011 | |
| Observations of Stellar Occultations by Dwarf Planets and TNOs - International Campaigns | 2011 | |
| The 2010, February 19 stellar occultation by Varuna | 2010 | |
| The 17 August 2010 stellar occultation by the dwarf-planet 1 Ceres | 2010 | |
| Astrometric and Photometric Variability in Quasars | 10.1017/S1743921310005648 | 2009 |
| CCD Observations an Modeling of 4492 Debussy Eclipsing Asteroid | 2008 | |
| A pilot astrometric survey of 59 northern ICRF radio-sources | 10.1063/1.2993633 | 2008 |
| A GAIA oriented analysis of a large sample of quasars | 2008 | |
| Pluto Atmospheric Activity, Ephemeris Offset and Charon Orbital Radius Constrained by Stellar Occultations | 2008 | |
| Search for Small Satellites and Rings Orbiting Pluto through Stellar Occultations | 2008 | |
| Véron&Véron Based Optical Extragalactic Reference Frame - Progress Report | 10.1017/S1743921307011374 | 2007 |
| An Observing Campaign of the Mutual Events Within (617) Patroclus-Menoetius Binary Trojan System | 2007 | |
| The July 31, 2007 Stellar Occultation by Pluto | 2007 | |
| Pluto's Atmospheric Activity, Ephemeris Offset and Satellite Detections from Observations in 2007 | 2007 | |
| Astrometric detection of faint companions ¿ the Pluto/Charon case study | 10.1017/S1743921308018747 | 2007 |
| A Gaia oriented analysis of a large sample of quasars | 10.1017/S1743921308019212 | 2007 |
| Astrometry by small ground-based telescopes | 10.1017/S1743921308019340 | 2007 |
| Observing Two Pluto Stellar Approaches In 2006: Results On Pluto's Atmosphere And Detection Of Hydra | 2006 | |
| Le système double d'Antiope | 2006 | |
| Observations astrométriques de Pluton - Le problème du photocentre | 2006 | |
| Conection between the ICRF and the dinamical reference frame for the outer planets | 2005 | |
| Astrometric representation of the GAIA extragalactic reference frame from ground observations | 2005 | |
| Probabilistic representation of the GAIA extragalactic reference frame | 2005 | |
| Véron & Véron based extragalactic reference frame | 2005 | |
| Evidence of Non-Coincidence between Radio and Optical Positions of ICRF Sources | 2004 | |
| Diferent Approaches Used to Obtain Optical Counterparts Positions of Extragalactic Radio Sources | 2004 | |
| Analysis of Reference Frames in the Hipparcos System | 2004 | |
| A fast and precise way to link one optical frame to ICRS | 2004 | |
| UCAC2 based CCD positions of ICRF sources | 2004 | |
| Astrophysical constraints for the GAIA extragalactic reference frame | 2004 | |
| Conexão entre o ICRS e o Referencial Dinâmico para planetas exteriores | 2004 | |
| A Joint Collaboration Between USNO And Brazil on the Astrometry of ICRF Souces | 2004 | |
| Astrometry for Optical Counterparts of ICRF Sources | 2003 | |
| Precise Optical Positions for ICRF Sources Using the 0.6m and 1.6m LNA Telescopes | 2003 | |
| Celestial and Local Reference Frames: the ICRF Representation and the GAIA Representation | 2003 | |
| Celestial and Local Reference Frames: the GAIA Representation and the ICRF Representation | 2003 | |
| Non-Coincidence between Radio and Optical Positions of ICRF Sources | 2002 | |
| A Joint Collaboration Between USNO and Brazil on The Astrometry of ICRF Sources | 2002 | |
| Different Approaches Used to Obtain Optical Positions from ICRF Sources | 2002 | |
| An analysis of the Tycho2 Catalogue as Representation of the Hipparcos System | 2002 | |
| CCD Positions of Extragalatic Radio Sources in the UCAC-1 Catalog System | 2002 | |
| Astrometric CCD Positions of Extragalactic Radio Sources from the Valinhos-LNA Program | 2002 | |
| Analysis of Reference Frames in The HIPPARCOS System | 2002 | |
| A Joint Project Between USNO and Brazil - The Astrometry of ICRF Sources | 2002 | |
| Evidence of non-coincidence Between Radio and Optical Positions of ICRF Sources | 2002 | |
| Non-coincidence between Radio and Optical Positions of ICRF Sources | 2002 | |
| A Joint Collaboration Between USNO and Brazil on The Astrometry of ICRF Sources | 2002 | |
| Different Approaches Used to Obtain Optical Positions from ICRF Sources | 2002 | |
| An analysis of the Tycho2 Catalogue as Representation of the Hipparcos System | 2002 | |
| Placing an Optical Frame in the ICRS System | 2001 | |
| CCD Observations of ICRF Sources in the HIPPARCOS Frame | 2000 | |
| CCD Positions of Extragalatic Radio Sources in the UCAC Catalogue System | 2000 | |
| Optical Positions of Radio Stars Referred to Dense Catalogs on the HIPPARCOS Frame | 2000 | |
| A Study on ICRF Optical Frames | 2000 | |
| Astrometric CCD Positions of Extragalactic Radiosources from the Valinhos-LNA Program | 2000 | |
| CCD Positions of Extragalatic Radio Sources in the UCAC Catalogue System | 2000 | |
| A Biblioteca Virtual de Astronomia | 1999 | |
| Formação em Técnicas Modernas de Observação e Redução de Dados em Astronomia e Astrofísica | 1999 | |
| CCD Observations of ICRF Sources in the HIPPARCOS Frame | 1999 | |
| Astrometric Reduction for Fields Observed at the Valinhos CCD Meridian Circle on the Neighborhood of Quasars | 1999 | |
| Radio Stars Extension of the HIPPARCOS System | 1999 | |
| Astrometric CCD Positions for Extragalactic Radiosources Using the USNO-A2.0 Catalogue | 1999 | |
| Astrometric CCD Positions from the Valinhos-LNA Extragalactic Radiosource Program: First Results | 1999 | |
| Astrometria para Uma Grande Amostra de Contrapartidas Óticas de Quasares | 1998 | |
| Astrometria CCD de Radiofontes Extragalácticas no Referencial HIPPARCOS | 1998 | |
| Posições Óticas de Rádio Estrelas no Referencial HIPPARCOS Definido pelo Catálogo TYCHO | 1998 | |
| Redução Astrométrica de Campos de Quasares Obtidos com o Círculo Meridiano de Valinhos | 1998 | |
| HIPPARCOS: Principais Características, Primeiros Resultados e Perspectivas Futuras | 1998 | |
| Astrometry for A Sample of ICRS Radiosources | 1998 | |
| Astrometria CCD de Radiofontes Extragaláticas com o HIPPARCOS | 1998 | |
| Optical Positions of Radio Stars | 1998 | |
| Satélites Astrométricos: Impacto na Astronomia e na Astrofísica | 1998 | |
| Astrometric positions of Quasars by CCD observations | 1997 | |
| ASTROMETRIC CCD POSITIONS FOR EXTRAGALATIC RADIOSOURCES | 1997 | |
| A Study on the Non-coincidence Between Optical and Radio Centroids of Extragalactic Radiosources | 1997 | |
| Astrometry of A Large Sample of optical Counterparts of Quasars | 1997 | |
| Optical Positions of Radio Stars on the Twin Astrographic Catalogue Reference Frame | 1997 | |
| LNA-Valinhos Astrometric Program of Extragalactic Radiosource Observations | 1997 | |
| Astrometric CCD Positions for Extragalactic Radiosources - an Essay on THYCO-like Data Reduction | 1997 | |
| Astrometric Observations of Faint Satellites | 1996 | |
| O Programa de Rádio Estrelas no Círculo Meridiano de Valinhos | 1996 | |
| Posições Astrométricas de Quasares com CCD | 1996 | |
| Improved Light Curves for HIPPARCOS Cepheids - First Results | 1996 | |
| A Catalogue of Positions, Proper Motions and BV Magnitudes of the Stars in the Field of the Galactic Cluster NGC 7243 | 1996 | |
| Optical Positions for a Dense Grid of Extragalactic Radio | 1996 | |
| Astrometric Positions of Radio Emitting Stars | 1996 | |
| Posições Astrométricas de 85 Quasares com CCD | 1996 | |
| Astrographical Results from the Observatório Nacional Radio Star Programme | 1995 | |
| Estudo dos Movimentos Próprios no Campo do Aglomerado Aberto NGC7243 | 1995 | |
| 20 CCD Positions of Southern Quasars | 1995 | |
| Reference Frames | 1994 | |
| Determinação de Posições Astrométricas para Nereida | 1994 | |
| Determinação de Posição de Radioestrelas | 1994 | |
| Determinação de Posição de Quasares com CCD | 1994 | |
| CCD Astrometry of Southern Quasars: Comparison with VLBI Positions | 1993 | |
| Residuals from Catalogue Comparisons | 1993 | |
| Astrometria de Quasares com CCD | 1993 | |
| FK5 based Radio Stars'Positions | 1992 | |
| Um Estudo de Modelos Polimoniais para Redução de Placas Astrográficas | 1992 | |
| Posições Astrométricas de Quasares e Radioestrelas | 1992 | |
| Posições Óticas de Quasares do Hemisfério Sul | 1992 | |
| Modelo de Redução do Campo da Câmara Astrográfica da E.A.M.C. - II | 1990 | |
| Posições Óticas Precisas para 11 Quasares com d < - 17.5 | 1990 | |
| Astrometria de Radiofontes Extragaláticas com Microdensitômetro PDS | 1990 | |
| Determinação Precisa da Posição Ótica de Quasares do Hemisfério Sul | 1988 | |
| Determinação de posições de Radiofontes Extragaláticas a partir do 'Eso B Survey' | 1988 |