Tipo de publicación: Con árbitro

  • Publicación
    Doppler-velocity Drifts Detected in a Solar Prominence
    We analyzed multiline observations of a quiescent prominence from the slit spectrograph located at the Ondřejov Observatory. Dopplergrams and integrated...
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    Double Bars, Inner Disks, and Nuclear Rings in Early-Type Disk Galaxies
    We present results from a survey of an unbiased sample of 38 early-type (S0-Sa), low-inclination, optically barred galaxies in the field, using images both from...
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    Double-barred galaxies. I. A catalog of barred galaxies with stellar secondary bars and inner disks
    I present a catalog of 67 barred galaxies which contain distinct, elliptical stellar structures inside their bars. Fifty of these are double-barred galaxies: a...
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    Double-lined Spectroscopic Binaries in the APOGEE DR16 and DR17 Data
    APOGEE spectra offer ≲1 km s -1 precision in the measurement of stellar radial velocities. This holds even when multiple stars are captured in the same spectrum...
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    Double-peak structure in the cyclic optical outbursts of blazar OJ 287.
    An international monitoring project, called OJ-94, was set up with the aim of monitoring blazar OJ 287 during the predicted optical outburst (in fall 1994...
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    Doubling of minute-long quasi-periodic pulsations from super-flares on a low-mass star
    Using the ULTRASPEC instrument mounted on the 2.4-m Thai National Telescope, we observed two large flares, each with a total energy close to 10 34 erg with sub...
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    Downflowing umbral flashes as evidence of standing waves in sunspot umbrae
    Context. Umbral flashes are sudden brightenings commonly visible in the core of some chromospheric lines. Theoretical and numerical modeling suggests that they...
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    Dozens of virtual impactor orbits eliminated by the EURONEAR VIMP DECam data mining project
    Context. Massive data mining of image archives observed with large etendue facilities represents a great opportunity for orbital amelioration of poorly known...
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    DQ white-dwarf stars with low C abundance: possible progenitors
    Aims.The present paper focuses on the evolution of hydrogen-deficient white dwarfs with the aim of exploring the consequences of different initial envelope...