28 citations · 69 across the 29 of their papers we have counts for
30 papers
CoRGI in MaNGA - II. NGC 5717: cold-gas accretion and disk growth in a BGG
Damir Gasymov, Ivan Yu. Katkov, Eva K. Grebel +6
Large-scale stellar counter-rotation, in which two coplanar stellar components rotate in opposite directions, is usually interpreted as a signature of external gas accretion. Such…
SDSS-V Local Volume Mapper (LVM): Dithered Data Cube Reconstruction with 3dcubegen
H. J. Ibarra-Medel, A. Z. Lugo-Aranda, R. de J. Zermeño +16
The Sloan Digital Sky Survey V (SDSS-V) Local Volume Mapper (LVM) is conducting an unprecedented wide-field integral field spectroscopic survey of the Milky Way, the Magellanic Clo…
SDSS-V Local Volume Mapper (LVM): The Integrated Light and Internal Rotation of Omega Centauri
Maximilian Häberle, Dmitry Bizyaev, Alina Boecker +34
The SDSS-V Local Volume Mapper (LVM) is a wide-field integral field spectroscopic survey of the Southern Milky Way plane, the Magellanic Clouds, and nearby Local Group galaxies. We…
The Twentieth Data Release of the Sloan Digital Sky Survey: First All-Sky BOSS Spectra, eROSITA-SDSS-V Mapper Coordinated Observations, and a Preview of the Local Volume Mapper
SDSS Collaboration, Mojgan Aghakhanloo, David Aguilar +273
This paper presents the twentieth data release (DR20) from the Sloan Digital Sky Survey, the third data release of its fifth generation (SDSS-V). SDSS-V is a panoptic spectroscopy…
There is no single density: star-forming regions and galaxies hold more dense ionized gas than long assumed
J. Eduardo Méndez-Delgado, Christophe Morisset, William J. Henney +29
Ionized gas fills star-forming regions and galaxies, and nearly everything we know about its temperature, pressure, mass, and composition is inferred from its emission lines [1-3].…
Optical Emission-Line Properties of eROSITA-selected SDSS-V Galaxies
Nadiia G. Pulatova, Evgenii Rubtsov, Igor V. Chilingarian +21
We present and discuss optical emission line properties obtained from the analysis of Sloan Digital Sky Survey (SDSS) spectra for an X-ray selected sample of 3684 galaxies (0.002 <…
SDSS-V LVM: Collisionless Shocks in the Supernova Remnant RCW86
Sumit K. Sarbadhicary, Knox S. Long, John C. Raymond +19
The supernova remnant (SNR) RCW86 is among the few SNRs with Balmer-emission lines containing broad and narrow spectral components that trace fast, non-radiative shocks in partiall…
The Nineteenth Data Release of the Sloan Digital Sky Survey
SDSS Collaboration, Gautham Adamane Pallathadka, Mojgan Aghakhanloo +210
Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map millions of celestial…
Sloan Digital Sky Survey-V: Pioneering Panoptic Spectroscopy
Juna A. Kollmeier, Hans-Walter Rix, Conny Aerts +217
The Sloan Digital Sky Survey-V (SDSS-V) is pioneering panoptic spectroscopy: it is the first all-sky, multi-epoch, optical-to-infrared spectroscopic survey. SDSS-V is mapping the s…
Peering into the heart of darkness with VLBA : Radio Quiet AGN in the JWST North Ecliptic Pole Time-Domain Field
Payaswini Saikia, Ramon Wrzosek, Joseph Gelfand +27
We present initial results from the 4.8 GHz Very Long Baseline Array (VLBA) survey of the JWST North Ecliptic Pole Time-Domain Field (TDF). From 106 radio sources found in the Karl…
Optical spectroscopy of host-galaxies of intermediate mass black holes: evolution of central black holes
V. Goradzhanov, I. Chilingarian, M. Demianenko +6
Intermediate-mass black holes (IMBHs) with masses below () are pivotal in understanding the origin and growth mechanisms of supermassive black holes (SMBHs…
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
Abdurro'uf, Katherine Accetta, Conny Aerts +337
This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete…
Optical Variability of "Light-weight" Supermassive Black Holes at a Few Percent Level from ZTF Forced-Photometry Light Curves
Mariia Demianenko, Kirill Grishin, Victoria Toptun +4
Large time-domain surveys provide a unique opportunity to detect and explore variability of millions of sources on timescales from days to years. Broadband photometric variability…
Optical spectroscopic observations of intermediate-mass black holes and their host galaxies: the relation
Vladimir Goradzhanov, Igor Chilingaryan, Ivan Katkov +4
Intermediate-mass black holes (IMBHs; ) in galaxy centers are cruciel for painting a coherent picture of the formation and growth of supermassive black…
Confirmation of intermediate-mass black holes candidates with X-ray observations
Victoria Toptun, Igor Chilingarian, Kirill Grishin +5
The origin of supermassive black holes (SMBH) in galaxy centers still remains uncertain. There are two possible ways of their formation - from massive () and…
Optical light curves of light-weight supermassive black holes produced by the Zwicky Transient Facility Forced Photometry Service
Mariia Demianenko, Igor Chilingarian, Kirill Grishin +4
In this paper, we present an algorithm to correct optical light curves obtained using The Zwicky Transient Facility Forced Photometry Service and its application to the analysis of…
Fast interactive web-based data visualizer of panoramic spectroscopic surveys
Ivan Katkov, Damir Gasymov, Joseph D. Gelfand +7
Panoramic IFU spectroscopy is a core tool of modern observational astronomy and is especially important for galaxy physics. Many massive IFU surveys, such as SDSS MaNGA (10k target…
RCSEDv2: homogenization of multi-wavelength photometric data
Victoria Toptun, Igor Chilingarian, Ivan Katkov +6
RCSEDv2 (https://rcsed2.voxastro.org/), the second Reference Catalog of Spectral Energy Distributions of galaxies includes the largest homogeneously processed photometric dataset f…
RCSEDv2: Open-source web tools for visualization of imaging and spectral data
Vladislav Klochkov, Ivan Katkov, Igor Chilingarian +6
We present a set of open-source web tools for visualization of spectral and imaging data, which we use in the second Reference Catalogue of Spectral Energy Distributions of galaxie…
RCSEDv2: the largest database of galaxy properties from a homogeneously processed multi-wavelength dataset
Igor Chilingarian, Sviatoslav Borisov, Vladimir Goradzhanov +6
The Reference Catalog of Spectral Energy Distributions of 800,000 galaxies (RCSED) includes the results of uniform re-processing of 800,000 SDSS DR7 galaxies at redshifts $0.007<z<…
RCSEDv2: Processing and analysis of 4+ million galaxy spectra
Vladimir Goradzhanov, Igor Chilingarian, Evgenii Rubtsov +6
RCSEDv2 (https://rcsed2.voxastro.org/), the second Reference Catalog of Spectral Energy Distributions of galaxies, provides the largest homogeneously analyzed collection of optical…
RCSEDv2: analytic approximations of k-corrections for galaxies out to redshift
Anastasia Kasparova, Igor Chilingarian, Sviatoslav Borisov +6
To compare photometric properties of galaxies at different redshifts, we need to correct fluxes for the change of effective rest-frame wavelengths of filter bandpasses, called -…
Hybrid minimization algorithm for computationally expensive multi-dimensional fitting
Evgenii Rubtsov, Igor Chilingarian, Ivan Katkov +3
Multi-dimensional optimization is widely used in virtually all areas of modern astrophysics. However, it is often too computationally expensive to evaluate a model on-the-fly. Typi…
Multi-segment and Echelle stellar spectra processing issues and how to solve them
Sviatoslav Borisov, Igor Chilingarian, Evgenii Rubtsov +7
High-quality stellar spectra are in great demand now - they are the most important ingredient in the stellar population synthesis to study galaxies and star clusters. Here we descr…