Astrophysical: Seyfert galaxies

  • Talk
    (1) Stellar disks in the intermediate redshift range: listening to the galaxy evolution "Symphony". (2) Unveiling the narrow-line Seyfert 1 nature of Mrk 573 using near-infrared spectroscopy

    1) In this brief seminar (<~25 minutes+questions) I will present recent results on the study of "deep", high resolution, surface brightness profiles of a sample...

  • Publication
    3D Spectroscopy with GTC-MEGARA of the Triple AGN Candidate in SDSS J102700.40+174900.8

    Triple-active galactic nucleus (AGN) systems are expected to be the result of the hierarchical model of galaxy formation. Since there are very few of them...

  • Publication
    A Reemerging Bright Soft X-Ray State of the Changing-look Active Galactic Nucleus 1ES 1927+654: A Multiwavelength View

    1ES1927+654 is a nearby active galactic nucleus (AGN) that has shown an enigmatic outburst in optical/UV followed by X-rays, exhibiting strange variability...

  • Publication
    A search for new objects in the transition phase between AGB-stars and planetary nebulae

    Preliminary results are presented from a spectroscopy survey of IRAS sources with colors similar to those of planetary nebulae. Two new planetary nebulae, some...

  • Publication
    Accretion tori and cones of ionizing radiation in Seyfert galaxies

    The photoionization of extended narrow-line regions in Seyfert galaxies by the radiation produced in a thick accretion disk is studied. The emission-line...

  • Talk
    Active galactic nuclei synapses: X-ray versus optical classifications using artificial neural networks

    The active galactic nuclei is conformed by a number of classes. Optically they are defined using diagnostics based on optical emission lines. At X-rays they are...

  • Publication
    BASS. XXV. DR2 Broad-line-based Black Hole Mass Estimates and Biases from Obscuration

    We present measurements of broad emission lines and virial estimates of supermassive black hole masses (M BH) for a large sample of ultrahard X-ray-selected...

  • Publication
    Bidimensional spectroscopy of Seyfert galaxies: offset BLR in NGC 3227.

    Not Available

  • Publication
    Bidimensional spectroscopy of the central kiloparsec of NGC 4151

    Sixty-one bidimensionally distributed spectra covering the circumnuclear region of NGC 4161 within a radius of about 6.5 arcsec are presented. The local...