TY - JOUR

T1 - On Some Issues of Cross-Identification of Astronomical Catalogs

AU - Ladeyschikov, D. A.

AU - Sobolev, A. M.

N1 - The work was supported by the project of the Ministry of Science and Higher Education “Theoretical and experimental studies of the formation and evolution of extrasolar planetary systems and characteristics of exoplanets” (No. 075-15-2020-780, contract 780-10).

PY - 2022/11/1

Y1 - 2022/11/1

N2 - The paper deals with the issues of cross-identification of sources from various astronomical catalogs. One of the main problems under consideration is how to cross-identify a large number of catalogs in a selected region in the sky when there is no reference source catalog? For cross-identification of large amounts of data, it is proposed to use the DBSCAN group search algorithm. A special program code "cross-match.online" has been developed, which works in online and offline modes, which allows you to automate the process of cross-identification of sources across a variety of catalogs. The paper deals with the issues of comparing catalogs with different source densities, resolving uncertainties in cross-identification, and also taking into account the uncertainty of source positions. A technique is proposed that makes it possible to cross-identify catalogs with different source densities and different position uncertainty values. Open access to the system is provided at https://cross-match.online.

AB - The paper deals with the issues of cross-identification of sources from various astronomical catalogs. One of the main problems under consideration is how to cross-identify a large number of catalogs in a selected region in the sky when there is no reference source catalog? For cross-identification of large amounts of data, it is proposed to use the DBSCAN group search algorithm. A special program code "cross-match.online" has been developed, which works in online and offline modes, which allows you to automate the process of cross-identification of sources across a variety of catalogs. The paper deals with the issues of comparing catalogs with different source densities, resolving uncertainties in cross-identification, and also taking into account the uncertainty of source positions. A technique is proposed that makes it possible to cross-identify catalogs with different source densities and different position uncertainty values. Open access to the system is provided at https://cross-match.online.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85147880690

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000936535200016

U2 - 10.1134/S1063772922110117

DO - 10.1134/S1063772922110117

M3 - Article

VL - 66

SP - 1082

EP - 1097

JO - Astronomy Reports

JF - Astronomy Reports

SN - 1063-7729

IS - 11

ER -