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ZENODO
Dataset . 2025
License: CC BY
Data sources: ZENODO
ZENODO
Dataset . 2025
License: CC BY
Data sources: Datacite
ZENODO
Dataset . 2025
License: CC BY
Data sources: Datacite
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J-VAR Data Release 1: variability indices

Authors: Pyrzas, Stylianos; Centro de Estudios de Física del Cosmos de Aragón;

J-VAR Data Release 1: variability indices

Abstract

Dataset of the variability indices calculated from the light curves of J-VAR Data Release 1. The single tarball file contains 101 individual fits files, one for every field of the DR1, following the naming convention VARIABILITY_INDICES_NNNNN.fits, where NNNNN is the corresponding field number. The data are contained in the "CATALOGUE" BinTable extension of the fits file. The table contains the following columns: -- OBJ_ID - the J-PLUS object ID, with format {REF_TILE}-{NUMBER} -- BANNJOS - Object classification via the BANNJOS algorithm (del Pino et al. 2024); classes are 'STAR','QSO','APS' (= Ambiguous Point Source) -- MORPH_FLAG - Binary flag to indicate potential issues with an object's morphology (0 = no, 1 = yes) -- VSX_TYPE - The VSX variable type classification of known variables; value is 'N/A' for all other objects -- VSX_PERIOD - The period (if available, otherwise period=0) of known variables; value is also 0 for all other objects -- GAIA_VAR - Flag to indicate whether or not the object is classified as variable (phot_variable_flag in gaia_source). Values are 0 if no (GAIA=NOT_AVAILABLE), 1 if yes (GAIA=VARIABLE), -1 for unmatched objects -- GAIA_CLASS - The GAIA classification of the variable (best_class_name in vari_classifier_result). There are GAIA objects flagged as 'VARIABLE' but without classification (in_vari_classification_result == False in vari_summary). These objects are assigned a 'NO_CLASS' value, while unmatched objects are assigned an 'N/A' value -- GAIA_SCORE - The score of the GAIA classification algorithm (best_class_score in vari_classifier_result). 'VARIABLE' objects with 'NO_CLASS' get a score=0, unmatched objects get a score=-1 The rest of the columns that follow have been calculated using two different definitions of "valid photometric point" for the data points of a given light curve. The first, more relaxed, definition requires that the photometric flag of a point is < 1024. Columns preceded with a "*" are actually 2D-arrays with shape (Nstars, NFilters), where Nstars is the number of stars in the given field and NFilters are the 7 photometric filters used in J-VAR in the following order: gSDSS, rSDSS, iSDSS, J0395, J0515, J0660, J0861 *-- MEDIAN_F1024 - The median magnitude of the lightcurve *-- PPERC_F1024 - The percentage of valid photometric points for a given light curve with respect to the number of field images *-- IND_MAD_F1024 - The Median Absolute Deviation *-- IND_IQR_F1024 - The InterQuartile Range *-- IND_ROMS_F1024 - The RObust Median Statistic *-- IND_VONN_F1024 - The (inverted) von Neumann ratio -- IND_WS_GR_F1024 - The Welch-Stetson index I calculated for the gSDSS and rSDSS filters -- IND_WS_RI_F1024 - The Welch-Stetson index I calculated for the rSDSS and iSDSS filters The exact same columns are replicated for the second, stricter, definition of "valid photometric point" that requires that the photometric flag is = 0. The columns have the same names, just replacing "F1024" for "F0".

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average