Buscar
Mostrando ítems 1-10 de 51
Improved spectral descriptions of planetary nebulae central stars
(EDP Sciences, 2015-05)
Context. At least 492 central stars of Galactic planetary nebulae (CSPNs) have been assigned spectral types. Since many CSPNs are faint, these classification efforts are frequently made at low spectral resolution. However, ...
Towards an improvement in the spectral description of central stars of planetary nebulae
(EDP Sciences, 2018-02)
Context. There are more than 3000 known Galactic planetary nebulae, but only 492 central stars of Galactic planetary nebulae (CSPN) have known spectral types. It is vital to increase this number in order to have reliable ...
A gravitationally lensed quasar discovered in OGLE
(Oxford University Press, 2018-05)
We report the discovery of a new gravitationally lensed quasar (double) from the Optical Gravitational Lensing Experiment (OGLE) identified inside the ~670deg2 area encompassing the Magellanic Clouds. The source was selected ...