Astrophysical: Supernovae

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    Erratum: The black hole binary nova Scorpii 1994 (GRO J1655-40): an improved chemical analysis
    Based on observations obtained with UVES at VLT Kueyen 8.2 m telescope in programme 073.D-0473(A).
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    Eruptive mass loss less than a year before the explosion of superluminous supernovae: I. The cases of SN 2020xga and SN 2022xgc
    We present photometric and spectroscopic observations of SN 2020xga and SN 2022xgc, two hydrogen-poor superluminous supernovae (SLSNe-I) at z = 0.4296 and z = 0...
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    Evolutionary phenomena in galaxies
    Topics discussed include the origin and early development of galaxies; gas and global star formation; galactic nuclei; population, age, and dynamics of the...
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    Examining supernova events in Type 1 active galactic nuclei
    A statistical study of intermediate Palomar Transient Factory supernovae (SNe) in Type 1 active galactic nuclei (AGNs) has shown a major deficit of supernovae...
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    First Cosmology Results using Supernovae Ia from the Dark Energy Survey: Survey Overview, Performance, and Supernova Spectroscopy
    We present details on the observing strategy, data-processing techniques, and spectroscopic targeting algorithms for the first three years of operation for the...
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    From Shock Breakout to Peak and Beyond: Extensive Panchromatic Observations of the Type Ib Supernova 2008D Associated with Swift X-ray Transient 080109
    We present extensive early photometric (ultraviolet through near-infrared) and spectroscopic (optical and near-infrared) data on supernova (SN) 2008D as well as...
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    Gaia Early Data Release 3. Gaia photometric science alerts
    Context. Since July 2014, the Gaia mission has been engaged in a high-spatial-resolution, time-resolved, precise, accurate astrometric, and photometric survey...
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    Gamma-ray line emission from OB associations and young open clusters. I. Evolutionary synthesis models
    We have developed a new diagnostic tool for the study of gamma-ray emission lines from radioactive isotopes (such as 26Al and 60Fe) in conjunction with other...
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    Gas kinematics in the nucleus of NGC 6946
    A complex kinematical structure is inferred from the analysis of high resolution spectra of the nuclear region of the galaxy NGC 6946. The spatial resolution of...