Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31907
DC Field | Value | Language |
---|---|---|
dc.contributor.author | BHARDWAJ, ANUPAM | en_US |
dc.contributor.author | Rejkuba, Marina | en_US |
dc.contributor.author | de Grijs, Richard | en_US |
dc.contributor.author | Yang, Soung-Chul | en_US |
dc.contributor.author | Herczeg, Gregory J. | en_US |
dc.contributor.author | MARCONI, Marcella | en_US |
dc.contributor.author | Singh, Harinder P. | en_US |
dc.contributor.author | Kanbur, Shashi | en_US |
dc.contributor.author | Ngeow, Chow-Choong | en_US |
dc.date.accessioned | 2022-03-25T08:28:07Z | - |
dc.date.available | 2022-03-25T08:28:07Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31907 | - |
dc.description.abstract | We present new near-infrared, JHK<SUB>s</SUB>, period-luminosity relations (PLRs) for RR Lyrae variables in the Messier 53 (M53 or NGC 5024) globular cluster. Multi-epoch JHK<SUB>s</SUB> observations, obtained with the WIRCam instrument on the 3.6 m Canada-France-Hawaii Telescope, are used for the first time to estimate precise mean magnitudes for 63 RR Lyrae stars in M53 including 29 fundamental-mode (RRab) and 34 first-overtone mode (RRc) variables. The JHK<SUB>s</SUB>-band PLRs for RR Lyrae stars are best constrained for RRab types with a minimal scatter of 22, 23, and 19 mmag, respectively. The combined sample of RR Lyrae is used to derive the K<SUB>s</SUB>-band PLR, ${K}_{s}=-2.303(0.063)\mathrm{log}P+15.212(0.016)$ ,exhibiting a 1σ dispersion of only 0.027 mag. Theoretical period-luminosity-metallicity (PLZ) relations are used to predict parallaxes for 400 Galactic RR Lyrae, resulting in a median parallax zero-point offset of -7 ± 3 μas in Gaia Early Data Release 3 (EDR3), which increases to 22 ± 2 μas if the parallax corrections are applied. We also estimate a robust distance modulus, μ<SUB>M53</SUB> = 16.403 ± 0.024 (statistical) ± 0.033 (systematic) mag, to M53 based on theoretical calibrations. Homogeneous and precise mean magnitudes for RR Lyrae in M53 together with similar literature data for M3, M4, M5, and ω Cen are used to empirically calibrate a new RR Lyrae ${\mathrm{PLZ}}_{{K}_{s}}$ relation, ${K}_{s}=-0.848(0.007)\,-2.320(0.006)\mathrm{log}P+0.166(0.011)[\mathrm{Fe}/{\rm{H}}]$ ,anchored with Gaia EDR3 distances and theoretically predicted relations, and to simultaneously estimate precise RR Lyrae-based distances to these globular clusters. | en_US |
dc.language.iso | eng | en_US |
dc.title | RR Lyrae Variables in Messier 53: Near-infrared Period-Luminosity Relations and the Calibration Using Gaia Early Data Release 3 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/abdf48 | en_US |
dc.identifier.scopus | 2-s2.0-85103329523 | en_US |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85103329523 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/abdf48 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 909 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 200 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2021ApJ...909..200B | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0002-1330-2927 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2012.13495.pdf | preprint | 2.15 MB | Adobe PDF | View/Open |
Bhardwaj_2021_ApJ_909_200 (1).pdf | [Administrators only] | 1.7 MB | Adobe PDF |
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