3 papers
astro-ph.GA2018
Optical and UV surface brightness of translucent dark nebulae: Dust albedo, radiation field and fluorescence emission by H2
K. Mattila, M. Haas, L. K. Haikala +4
Photometry of the nebulae LDN1780, LDN1642 and LBN406 is used to derive scattering properties of dust and to investigate the presence of UV fluorescence emission by molecular hydro…
astro-ph.IM2018
Digitization and astrometric calibration of Carte du Ciel photographic plates with Gaia~DR1
K. Lehtinen, T. Prusti, J. de Bruijne +6
We want to study whether the astrometric and photometric accuracies obtained for the Carte du Ciel plates digitized with a commercial digital camera are high enough for scientific…
astro-ph.EP2018
Radio interferometric observation of an asteroid occultation
Jorma Harju, Kimmo Lehtinen, Jonathan Romney +5
The occultation of the radio galaxy 0141+268 by the asteroid (372) Palma on 2017 May 15 was observed using six antennas of the Very Long Baseline Array (VLBA). The shadow of Palma…