Mostrar el registro sencillo del ítem

dc.contributor.authorHahn, Luis Gabriel Dahmerpt_BR
dc.contributor.authorRiffel, Rogériopt_BR
dc.contributor.authorRodriguez-Ardila, Albertopt_BR
dc.contributor.authorMartins, Lucimara Pirespt_BR
dc.contributor.authorKehrig, Carolinapt_BR
dc.contributor.authorHeckman, Timothy M.pt_BR
dc.contributor.authorPastoriza, Miriani Griseldapt_BR
dc.contributor.authorDametto, Natacha Zanonpt_BR
dc.date.accessioned2018-09-18T02:30:16Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/182129pt_BR
dc.description.abstractWe performed a near-infrared (NIR; ∼1.0 –2.4 μm) stellar population study in a sample of early-type galaxies. The synthesis was performed using five different evolutionary population synthesis libraries of models. Our main results can be summarized as follows: low-spectral-resolution libraries are not able to produce reliable results when applied to the NIR alone, with each library finding a different dominant population. The two newest higher resolution models, on the other hand, perform considerably better, finding consistent results to each other and to literature values. We also found that optical results are consistent with each other even for lower resolution models. We also compared optical and NIR results and found out that lower resolution models tend to disagree in the optical and in the NIR, with higher fraction of young populations in the NIR and dust extinction ∼1 mag higher than optical values. For higher resolution models, optical and NIR results tend to agree much better, suggesting that a higher spectral resolution is fundamental to improve the quality of the results.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the royal astronomical society. Oxford. Vol. 476, no. 4 (June 2018), p. 4459–4480pt_BR
dc.rightsOpen Accessen
dc.subjectStars: AGB and post-AGBen
dc.subjectGaláxiaspt_BR
dc.subjectPopulacoes estelarespt_BR
dc.subjectGalaxies: stellar contenten
dc.subjectEvolucao estelarpt_BR
dc.subjectInfrared: galaxiesen
dc.subjectEspectroscopia infravermelhapt_BR
dc.titleProbing evolutionary population synthesis models in the near infrared with early-type galaxiespt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001073080pt_BR
dc.type.originEstrangeiropt_BR


Ficheros en el ítem

Thumbnail
   

Este ítem está licenciado en la Creative Commons License

Mostrar el registro sencillo del ítem