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New Catalog of Distances to Planetary Nebulae Based on Gaia Parallaxes and Statistical Distances
Peña, M.; Rodríguez, M.; Hernández-Juárez, D.
We have developed a method to determine the most reliable distances for a large group of planetary nebulae. For this purpose, we analyze the distances obtained from Gaia parallaxes and three determinations of statistical distances. The most reliable distance is derived for 2211 objects, and uncertainties for these distances are calculated in a hom…
The Calar Alto Legacy Integral Field Area Survey: Spatial Resolved Properties
Galbany, L.; Sánchez, S. F.; García-Benito, R. +3 more
We present the analysis using the pyPipe3D pipeline for the 895 galaxies that comprises the eCALIFA data release (Sanchez et al. 2023), data with a significantly improved spatial resolution (1.0-1.5"/FWHM). We include a description of (i) the analysis performed by the pipeline, (ii) the adopted datamodel for the derived spatially resolved properti…
Compact Radio Sources in the Field of Tycho's Supernova Remnant
Rodríguez, L. F.; Dzib, S. A.; Yanza, V.
We present sensitive, high angular resolution Jansky Very Large Array observations made in 2014 at 1.50 GHz toward the field of Tycho's supernova remnant. We detect a total of 36 compact sources in a field with radius of 13 arcmin. This number is consistent with the expected number of background sources. We use older observations made with the cla…
Radio Proper Motions of the Nearby Ultra-Cool Dwarf Binary VHS 1256−1257AB
Loinard, L.; Zapata, L. A.; Rodríguez, L. F. +1 more
The proper motions of a source obtained at different epochs or in different spectral regions should in principle be consistent. However, in the case of a binary source or a source with associated ejecta, they could be different depending on the epochs when the observations were made and on what emission is traced in each spectral region. In this p…
The Variable Stars Population of the Extended Young Globular Cluster NGC 1851
Arellano Ferro, A.; Prudil, Z.; Yepez, M. A. +3 more
We report <i<>VI CCD photometry of the globular cluster NGC 1851. We aim to study the membership of the variable stars detected in the field of the cluster as listed in the Catalogue of Variable stars in Globular Clusters (CVSGC; Clement et al. 2001) and reported by the Gaia mission. We cross match the two sets of variables to produce lig…
The Radio Continuum Source Projected Near HR 8799
Zapata, L. A.; Rodríguez, L. F.
HR 8799 is an A5/F0 V star where exoplanets were first directly imaged. Four exoplanets were found within ≃ 2." 0 from the star. Here we report the VLA detection of a faint (19.1±2.7 µJy) radio continuum (3.0 GHz) source projected at ≃ 2." 2 from the star. The a priori probability of finding a background source with this flux densi…
Long Term CCD Photometry of the Distant Cluster NGC2419: The CMD Revisited
Arellano Ferro, A.; Muneer, S.; Yepez, M. A. +4 more
Employing VI images of NGC 2419 acquired over 17 years, light curves for most of the known variables in the field of the cluster are produced. A cluster membership analysis for about 3100 stars in the cluster field with proper motions from Gaia-DR3 revealed the presence of member stars as far as 140 pc from the cluster center and enabled the const…
A Deep Study of the Open Cluster NGC 5288 Using Photometric and Astrometric Data from GAIA DR3 and 2MASS
Bisht, D.; Sethi, R.; Rangawal, G. +1 more
This paper investigates a poorly studied open cluster, NGC 5288, using 2MASS JHKS and the recently released Gaia DR3 astrometric and photometric data. The mean proper motions in right ascension and declination are estimated as (‑3.840 ± 0.230) and (‑1.934 ± 0.162) mas yr‑1 respectively. We also derive the age and distance of …
RR Lyrae Stars in the Globular Cluster Palomar 2
Arellano Ferro, A.; Muneer, S.; Bustos Fierro, I. +1 more
A CCD VI imaging time-series over 11-year is employed to explore the light curves of stars in the field of Palomar 2. We discovered 20 RRab and 1 RRc variables. A revision of Gaia-DR3 data enabled us to identify 10 more variables and confirm the RRab nature of 6 of them and one RGB. The cluster membership is discussed, and 18 variables are most li…
Astrophysical Studies of 9 Unstudied Open Star Clusters Using GAIA DR3
Tadross, A. L.; Badawy, W. A.; Hendy, Y. H. M. +2 more
Using the Gaia DR3 data sets, this work gives an analysis of nine open clusters: Dolidze 25, Kronberger 13, Kronberger 18, Majaess 99, NGC 7795, Ruprecht 139, Teutsch 55, S1, and FSR 0596, which are close to the Galactic plane of the Milky Way. The number of probable cluster members is found to be 81, 77, 120, 155, 108, 110, 160, and 116 respectiv…