activity
20162026
most citedA Population of Bona Fide Intermediate Mass Black Holes Identified as Low Luminosity Active Galactic Nuclei

157 citations · 461 across the 43 of their papers we have counts for

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Showing 2023Show all

5 papers · 1 filter

astro-ph.IM2023

Non-negative matrix factorization approach to sky subtraction for optical spectroscopy

Fedor Kolganov, Igor Chilingarian, Kirill Grishin

Numerous sky background subtraction techniques have been developed since the first implementations of computer-based reduction of spectra. Kurtz & Mink (2000) described a singular…

astro-ph.IM2023★ 2 cited

Color Transformations of Photometric Measurements of Galaxies in Optical and Near-Infrared Wide-Field Imaging Surveys

Victoria A. Toptun, Igor V. Chilingarian, Kirill A. Grishin +1

Over the past 2 decades, wide-field photometric surveys in optical and infrared domains reached a nearly all-sky coverage thanks to numerous observational facilities operating in b…

astro-ph.GA2023★ 1 cited

Dark matter content and dynamical masses of ultra-diffuse galaxies in the Coma cluster

Igor Chilingarian, Kirill Grishin, Anton V. Afanasiev +6

Ultra-diffuse galaxies (UDGs) are spatially extended, low surface brightness stellar systems with regular elliptical-like morphology found in large numbers in galaxy clusters and g…

astro-ph.GA2023

Dwarf early-type galaxies in the Coma cluster: internal dynamics, stellar populations

Igor Chilingarian, Kirill Grishin, Anton V. Afanasiev +6

We present preliminary results from our spectroscopic survey of low-luminosity early-type galaxies in the Coma cluster conducted with the Binospec spectrograph at the 6.5~m MMT. Fr…

astro-ph.CO2023★ 19 cited

YOLO-CL: Galaxy cluster detection in the SDSS with deep machine learning

Kirill Grishin, Simona Mei, Stéphane Ilic

(Abridged) Galaxy clusters are a powerful probe of cosmological models. Next generation large-scale optical and infrared surveys will reach unprecedented depths over large areas an…