Search Results - "Hoenig, Sebastian"
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The Lick AGN Monitoring Project 2011: Dynamical Modeling of the Broad-line Region
Published in The Astrophysical journal (20-10-2018)“…We present models of the Hβ-emitting broad-line region (BLR) in seven Seyfert 1 galaxies from the Lick AGN Monitoring Project 2011 sample, drawing inferences…”
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Determination of the size of the dust torus in H0507+164 through optical and infrared monitoring
Published in Monthly notices of the Royal Astronomical Society (21-04-2018)“…Abstract The time delay between flux variations in different wavelength bands can be used to probe the inner regions of active galactic nuclei (AGNs). Here, we…”
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3D Radiation Hydrodynamics of a Dynamical Torus
Published in The Astrophysical journal (10-05-2019)“…We have developed a new dynamical model of the torus region in active galactic nuclei (AGNs), using a three-dimensional radiation hydrodynamics algorithm…”
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THE DUST SUBLIMATION RADIUS AS AN OUTER ENVELOPE TO THE BULK OF THE NARROW Fe K α LINE EMISSION IN TYPE 1 AGNs
Published in The Astrophysical journal (20-10-2015)“…The Fe Kα emission line is the most ubiquitous feature in the X-ray spectra of active galactic nuclei (AGNs), but the origin of its narrow core remains…”
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WISE view of narrow-line Seyfert 1 galaxies: mid-infrared colour and variability
Published in Monthly notices of the Royal Astronomical Society (21-02-2019)Get full text
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Parsec-scale Dusty Winds in Active Galactic Nuclei: Evidence for Radiation Pressure Driving Based on European Southern Observatory (ESO) observing programs 71.B-0062, 078.B-0303, 083.B-0288, 083.B-0452, 084.B-0366, 086.B-0019, 086.B-0242, 087.B-0018, 087.B0401, 091.B-0025, 091.B-0647, 092.B-0718, 092.B-0738, 093.B-0287, 093.B-0647, 094.B-0918, 095.B-0376,0101.B-0411 and 290.B-5113 as well as the Spitzer programs 86, 526, 3269, 3605, 30572, and 50588
Published in The Astrophysical journal (20-11-2019)“…Infrared interferometry of the local active galactic nucleus (AGN) has revealed a warm (∼300-400 K) polar dust structure that cannot be trivially explained by…”
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The Dust Sublimation Region of the Type 1 AGN NGC 4151 at a Hundred Microarcsecond Scale as Resolved by the CHARA Array Interferometer
Published in The Astrophysical journal (01-11-2022)“…The nuclear region of Type 1 active galactic nuclei (AGNs) has only been partially resolved so far in the near-infrared (IR), where we expect to see the dust…”
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Dust beyond the torus: revealing the mid-infrared heart of local Seyfert ESO 428-G14 with JWST/MIRI
Published in Monthly notices of the Royal Astronomical Society (06-08-2024)“…ABSTRACT Polar dust has been discovered in a number of local active galactic nuclei (AGN), with radiation-driven torus models predicting a wind to be its main…”
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RESOLVING THE GAP AND AU-SCALE ASYMMETRIES IN THE PRE-TRANSITIONAL DISK OF V1247 ORIONIS
Published in The Astrophysical journal (01-05-2013)“…Pre-transitional disks are protoplanetary disks with a gapped disk structure, potentially indicating the presence of young planets in these systems. In order…”
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The planet formation imager
Published in Experimental astronomy (2018)“…The Planet Formation Imager (PFI, www.planetformationimager.org) is a next-generation infrared interferometer array with the primary goal of imaging the active…”
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RESOLVING THE ACTIVE GALACTIC NUCLEUS AND HOST EMISSION IN THE MID-INFRARED USING A MODEL-INDEPENDENT SPECTRAL DECOMPOSITION
Published in The Astrophysical journal (20-04-2015)“…ABSTRACT We present results on the spectral decomposition of 118 Spitzer Infrared Spectrograph (IRS) spectra from local active galactic nuclei (AGNs) using a…”
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Dust reverberation mapping in the era of big optical surveys and its cosmological application
Published 18-02-2014“…The time lag between optical and near-infrared (IR) flux variability can be taken as a means to determine the sublimation radius of the dusty "torus" around…”
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Expectations for time-delay measurements in active galactic nuclei with the Vera Rubin Observatory
Published 15-06-2023“…A&A 675, A163 (2023) The Vera Rubin Observatory will provide an unprecedented set of time-dependent observations of the sky. The planned Legacy Survey of Space…”
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Chromatically modelling the parsec scale dusty structure in the centre of NGC1068
Published 29-02-2024“…A&A 686, A204 (2024) The Very Large Telescope Interferometer (VLTI) has been providing breakthrough images of the dust in the central parsecs of Active…”
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The dust sublimation region of the Type 1 AGN NGC4151 at a hundred micro-arcsecond scale as resolved by the CHARA Array interferometer
Published 13-09-2022“…The nuclear region of Type 1 AGNs has only been partially resolved so far in the near-infrared (IR) where we expect to see the dust sublimation region and the…”
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On donuts and crumbs: A brief history of torus models
Published 07-01-2013“…A variety of torus models for the infrared emission of AGN has become available in literature over the last decade. This includes radiative transfer models…”
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The dust sublimation radius as an outer envelope to the bulk of the narrow Fe Kalpha line emission in Type 1 AGN
Published 08-09-2015“…The Fe Kalpha emission line is the most ubiquitous feature in the X-ray spectra of active galactic nuclei (AGN), but the origin of its narrow core remains…”
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Building a GRAVITY+ Adaptive Optics Test Bench
Published 24-08-2022“…SPIE, Jul 2022, Montr{\'e}al, France We present the testbench aimed at integrating the GRAVITY+ adaptive optics GPAO. It consists of two independent elements,…”
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WISE view of Narrow-Line Seyfert 1 galaxies: mid-infrared color and variability
Published 27-11-2018“…We present the color and flux variability analysis at 3.4 {\mu}m (W1-band) and 4.6 {\mu}m (W 2-band) of 492 narrow-line Seyfert 1 (NLSy1) galaxies using…”
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Exploring Active Supermassive Black Holes at 100 Micro-arcsecond Resolution
Published 22-03-2019“…Super-high spatial resolution observations in the infrared are now enabling major advances in our understanding of supermassive black hole systems at the…”
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