Ultraviolet Photometry and Reddening Estimation of 105 Galactic Open Clusters

Fuente: arXiv
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Autores principales: Ramezani, Tahereh, Paunzen, Ernst, Gorodilov, Artem, Pintado, Olga Ines
Formato: Preprint
Publicado: 2025
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author Ramezani, Tahereh
Paunzen, Ernst
Gorodilov, Artem
Pintado, Olga Ines
author_facet Ramezani, Tahereh
Paunzen, Ernst
Gorodilov, Artem
Pintado, Olga Ines
contents This paper focuses on observing unstudied Galactic open clusters in the Ultraviolet (UV) wavelength range and analyzing their photometric data. The Gaia Data Release 3 (DR3) enables us to precisely study known Galactic open clusters. We conducted observations using the 1.54-meter Danish Telescope (DK1.54) in Chile and the 2.15-meter telescope at the Complejo Astronomico El Leoncito (CASLEO) in Argentina, employing UV filters. Furthermore, we have collected available photometric and astrometric data for our observed clusters. We aim to estimate the reddening of Galactic open clusters using UV photometry. We applied isochrone fitting to determine the reddening of the clusters using well-known members. As a final result, we present the reddening values of 105 Galactic open clusters in the UV, as determined by our photometry.
format Preprint
id arxiv_https___arxiv_org_abs_2504_04930
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Ultraviolet Photometry and Reddening Estimation of 105 Galactic Open Clusters
Ramezani, Tahereh
Paunzen, Ernst
Gorodilov, Artem
Pintado, Olga Ines
Astrophysics of Galaxies
Solar and Stellar Astrophysics
This paper focuses on observing unstudied Galactic open clusters in the Ultraviolet (UV) wavelength range and analyzing their photometric data. The Gaia Data Release 3 (DR3) enables us to precisely study known Galactic open clusters. We conducted observations using the 1.54-meter Danish Telescope (DK1.54) in Chile and the 2.15-meter telescope at the Complejo Astronomico El Leoncito (CASLEO) in Argentina, employing UV filters. Furthermore, we have collected available photometric and astrometric data for our observed clusters. We aim to estimate the reddening of Galactic open clusters using UV photometry. We applied isochrone fitting to determine the reddening of the clusters using well-known members. As a final result, we present the reddening values of 105 Galactic open clusters in the UV, as determined by our photometry.
title Ultraviolet Photometry and Reddening Estimation of 105 Galactic Open Clusters
topic Astrophysics of Galaxies
Solar and Stellar Astrophysics
url https://arxiv.org/abs/2504.04930