Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Toptun, Victoria"'
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 both hemispheres. However, subtle differences among exact realizations
Externí odkaz:
http://arxiv.org/abs/2308.03839
Autor:
Saburova, Anna S., Chilingarian, Igor V., Kulier, Andrea, Galaz, Gaspar, Grishin, Kirill A., Kasparova, Anastasia V., Toptun, Victoria, Katkov, Ivan Yu.
Rare giant low surface brightness galaxies (gLSBGs) act as a stress test for the current galaxy formation paradigm. To answer the question `How rare are they?' we estimate their volume density in the local Universe. A visual inspection of 120~sq.~deg
Externí odkaz:
http://arxiv.org/abs/2209.09906
Autor:
Demianenko, Mariia, Grishin, Kirill, Toptun, Victoria, Chilingarian, Igor, Katkov, Ivan, Goradzhanov, Vladimir, Kuzmin, Ivan
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 can be used as the key selection criteria for weak type-I active galac
Externí odkaz:
http://arxiv.org/abs/2201.03712
Autor:
Toptun, Victoria, Chilingarian, Igor, Grishin, Kirill, Katkov, Ivan, Zolotukhin, Ivan, Goradzhanov, Vladimir, Demianenko, Mariia, Kuzmun, Ivan
The origin of supermassive black holes (SMBH) in galaxy centers still remains uncertain. There are two possible ways of their formation - from massive ($10^5 - 10^6 M_{\odot}$) and low-mass ($100 M_{\odot}$) BH nuclei. The latter scenario should leav
Externí odkaz:
http://arxiv.org/abs/2201.01075
Autor:
Goradzhanov, Vladimir, Chilingaryan, Igor, Katkov, Ivan, Grishin, Kirill, Toptun, Victoria, Kuzmin, Ivan, Demianenko, Mariia
Intermediate-mass black holes (IMBHs; $M_{BH} <2*10^{5} M_{\odot}$) in galaxy centers are cruciel for painting a coherent picture of the formation and growth of supermassive black holes (SMBHs). Using Big Data analysis, we identified 305 IMBH candida
Externí odkaz:
http://arxiv.org/abs/2201.01078
Autor:
Demianenko, Mariia, Chilingarian, Igor, Grishin, Kirill, Goradzhanov, Vladimir, Toptun, Victoria, Katkov, Ivan, Kuzmin, Ivan
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 optical variability of 136 actvie galactic nuclei (AGN) powered by "l
Externí odkaz:
http://arxiv.org/abs/2112.11520
Autor:
Toptun, Victoria, Chilingarian, Igor, Katkov, Ivan, Grishin, Kirill, Kasparova, Anastasia, Borisov, Sviatoslav, Rubtsov, Evgenii, Goradzhanov, Vladimir, Klochkov, Vladislav
RCSEDv2 (https://rcsed2.voxastro.org/), the second Reference Catalog of Spectral Energy Distributions of galaxies includes the largest homogeneously processed photometric dataset for 4 million galaxies assembled from several wide-field surveys. Here
Externí odkaz:
http://arxiv.org/abs/2112.04868
Autor:
Klochkov, Vladislav, Katkov, Ivan, Chilingarian, Igor, Grishin, Kirill, Kasparova, Anastasia, Goradzhanov, Vladimir, Toptun, Victoria, Rubtsov, Evgenii, Borisov, Sviatoslav
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 galaxies RCSEDv2 (https://rcsed2.voxastro.org/). Using modern web frameworks
Externí odkaz:
http://arxiv.org/abs/2112.04867
Autor:
Goradzhanov, Vladimir, Chilingarian, Igor, Rubtsov, Evgenii, Katkov, Ivan, Grishin, Kirill, Toptun, Victoria, Kasparova, Anastasia, Klochkov, Vladislav, Borisov, Sviatoslav
RCSEDv2 (https://rcsed2.voxastro.org/), the second Reference Catalog of Spectral Energy Distributions of galaxies, provides the largest homogeneously analyzed collection of optical galaxy spectra originating from several ground-based surveys collecte
Externí odkaz:
http://arxiv.org/abs/2112.04865
Autor:
Chilingarian, Igor, Borisov, Sviatoslav, Goradzhanov, Vladimir, Grishin, Kirill, Kasparova, Anastasia, Katkov, Ivan, Klochkov, Vladislav, Rubtsov, Evgenii, Toptun, Victoria
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
Externí odkaz:
http://arxiv.org/abs/2112.04866