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Mostrando ítems 1-9 de 9
The Southern Argentina Agile Meteor Radar Orbital System (SAAMER-OS): An Initial Sporadic Meteoroid Orbital Survey in the Southern Sky
(IOP Publishing, 2015-08)
We present an initial survey in the southern sky of the sporadic meteoroid orbital environment obtained with the Southern Argentina Agile MEteor Radar (SAAMER) Orbital System (OS), in which over three-quarters of a million ...
Optical Polarization of solar type stars with debris disks
(Universidad Nacional Autónoma de México. Instituto de Astronomía, 2015-04)
We report optical aperture polarimetry for 34 southern hemisphere mainsequence stars with debris disks, in addition to 54 stars without evidence of disk. These sets of stars are combined with another set of 109 stars from ...
Azimuthal asymmetries in the debris disk around HD61005 A massive collision of planetesimals?
(EDP Sciences, 2016)
Context. Debris disks off er valuable insights into the latest stages of circumstellar disk evolution, and can possibly help us to trace the outcomes of planetary formation processes. In the age range 10 to 100 Myr, most ...
On the age of the Beagle secundary asteroid family
(2018-01-01)
The Beagle family is a C-type subgroup of the Themis family, in the outer main belt. Previous works suggested that it could be younger than 20 Myr and a possible source for the dust in the i≃1.4∘ α zodiacal dust band. Here ...
Excesso no infravermelho em estrelas análogas rotacionais do sol: à procura de exo-cinturões de asteroides
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA, 2019-06-27)
Observations of circunstellar matter disks provide a powerful tool for our understanding of the dynamic of planetary systems. Analogs to the Solar System asteroid belts,
such disks result, mainly, from the collision of ...
Excesso infravermelho e discos de detritos em estrelas do aglomerado M67
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA, 2022)
Influencia de la metalicidad en la Ley de Leavitt
(Universidad de los AndesFísicaFacultad de CienciasDepartamento de Física, 2023-01-20)
En este trabajo se determinó la distancia y el exceso de color interno de las galaxias NGC 6822, NGC 7793, WLM, NGC 3109 y NGC 300 mediante la Ley de Leavitt (LL) en filtros VIJK. La relación lineal en un filtro dado de ...