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BASS. XXIII. A New Mid-infrared Diagnostic for Absorption in Active Galactic Nuclei
Ricci, Claudio; Stern, Daniel; Trakhtenbrot, Benny +15 more
In this study, we use the Swift/BAT AGN sample, which has received extensive multiwavelength follow-up analysis as a result of the BAT AGN Spectroscopic Survey, to develop a diagnostic for nuclear obscuration by examining the relationship between the line-of-sight column densities (N H), the 2–10 keV to 12 µm luminosity ratio, and…
Dippers from TESS Full-frame Images. II. Spectroscopic Characterization of Four Young Dippers
Takita, Satoshi; Hattori, Kohei; Muto, Takayuki +9 more
Photometric monitoring by the Transiting Exoplanet Survey Satellite (TESS) has discovered not only periodic signals by transiting exoplanets but also episodic or quasiperiodic dimming around young stellar objects. The dimming mechanisms of these objects, the so-called "dippers," are thought to be related to either the accretion property or the str…