5 papers
Euclid Quick Data Release (Q1): VIS processing and data products
Euclid Collaboration, H. J. McCracken, K. Benson +377
This paper describes the VIS Processing Function (VIS PF) of the Euclid ground segment pipeline, which processes and calibrates raw data from the VIS camera. We present the algorit…
Andromeda's tenuous veil: A likely Milky Way nebula projected toward M31
A. Lumbreras-Calle, J. A. Fernández-Ontiveros, R. Infante-Sainz +10
A large, faint nebula was unexpectedly discovered near M31 using narrowband [O III] images. Its apparent size and the lack of a clear counterpart at other wavelengths make it uniqu…
J-PAS: Discovery of RaJav, a bright spatially extended Ly Nebula at z=2.25
P. T. Rahna, M. Akhlaghi, J. A. Fernández-Ontiveros +29
We report the discovery of a massive and potentially largest Ly Nebula, RaJav, at z=2.25, associated with a quasar pair: the bright SDSS~J162029.07+433451.1 (hereafter J1620+43…
J-PLUS: Spectroscopic validation of H emission line maps in spatially resolved galaxies
P. T. Rahna, M. Akhlaghi, C. López-Sanjuan +22
We present a dedicated automated pipeline to construct spatially resolved emission H+[NII] maps and to derive the spectral energy distributions (SEDs) in 12 optical filters (fi…
J-VAR: the northern variable sky in 7 filters -- First Data Release
A. Ederoclite, H. Vázquez Ramió, A. Alvarez-Candal +37
Aims. The analysis of variability of astronomical sources is of extraordinary interest, as it allows the study of astrophysical phenomena in real time. This paper presents the Java…