| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/3U9S73L | |||
| Repository | sid.inpe.br/mtc-m21c/2019/10.24.13.24 | |||
| Last Update | 2019:10.24.13.24.08 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2019/10.24.13.24.08 | |||
| Metadata Last Update | 2020:01.06.11.42.23 (UTC) administrator | |||
| DOI | 10.1093/mnras/stz2192 | |||
| ISSN | 0035-8711 1365-2966 | |||
| Citation Key | LaBarberaVFPPMACRFV:2019:IMRaGr | |||
| Title | IMF radial gradients in most massive early-type galaxies  | |||
| Year | 2019 | |||
| Month | Nov. | |||
| Access Date | 2024, May 16 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 2650 KiB | |||
| 2. Context | ||||
| Author | 1 La Barbera, Francesco 2 Vazdekis, A. 3 Ferreras, I. 4 Paquali, A. 5 Prieto, C. Allende 6 Martín-Navarro, I. 7 Aguado, D. S. 8 Carvalho, Reinaldo Ramos de 9 Rembold, S. 10 Falcón-Barroso, J. 11 van de Ven, G. | |||
| Resume Identifier | 1 2 3 4 5 6 7 8 8JMKD3MGP5W/3C9JJ5B | |||
| Group | 1 2 3 4 5 6 7 8 DIDAS-CGCEA-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 INAF – Osservatorio Astronomico di Capodimonte 2 Instituto de Astrofísica de Canarias 3 University College London 4 Universität Heidelberg 5 Instituto de Astrofísica de Canarias 6 University of California Observatories 7 University of Cambridge 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Universidade Federal de Santa Maria (UFSM) 10 Instituto de Astrofísica de Canarias 11 University of Vienna | |||
| Author e-Mail Address | 1 francesco.labarbera@inaf.it 2 vazdekis@iac.es 3 iferreras@iac.es 4 5 6 7 8 rrdecarvalho2008@gmail.com | |||
| Journal | Monthly Notices of the Royal Astronomical Society | |||
| Volume | 489 | |||
| Number | 3 | |||
| Pages | 4090-4110 | |||
| Secondary Mark | A1_QUÍMICA A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_ASTRONOMIA_/_FÍSICA B2_ENSINO B5_ENGENHARIAS_IV | |||
| History (UTC) | 2019-10-24 13:24:08 :: simone -> administrator :: 2019-10-24 13:24:08 :: administrator -> simone :: 2019 2019-10-24 13:25:54 :: simone -> administrator :: 2019 2020-01-06 11:42:23 :: administrator -> simone :: 2019 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Keywords | galaxies: elliptical and lenticular cD galaxies: formation galaxies: fundamental parameters galaxies: stellar content | |||
| Abstract | Using new long-slit spectroscopy obtained with X-Shooter at ESO-VLT, we study, for the first time, radial gradients of optical and near-infrared initial mass function (IMF)-sensitive features in a representative sample of galaxies at the very high mass end of the galaxy population. The sample consists of seven early-type galaxies (ETGs) at z similar to 0.05, with central velocity dispersion in the range 300 less than or similar to sigma less than or similar to 350 km s(-1). Using state-of-the-art stellar population synthesis models, we fit a number of spectral indices, from different chemical species (including TiO and Na indices), to constrain the IMF slope (i.e. the fraction of low-mass stars), as a function of galactocentric distance, over a radial range out to similar to 4 kpc. ETGs in our sample show a significant correlation of IMF slope and surface mass density. The bottom-heavy population (i.e. an excess of low-mass stars in the IMF) is confined to central galaxy regions with surface mass density above similar to 10(10)M(circle dot) kpc (2), or, alternatively, within a characteristic radius of similar to 2 kpc. Radial distance, in physical units, and surface mass density are the best correlators to IMF variations, with respect to other dynamical (e.g. velocity dispersion) and stellar population (e.g. metallicity) properties. Our results for the most massive galaxies suggest that there is no single parameter that fully explains variations in the stellar IMF, but IMF radial profiles at z similar to 0 rather result from the complex formation and mass accretion history of galaxy inner and outer regions. | |||
| Area | CEA | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > IMF radial gradients... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34R/3U9S73L | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34R/3U9S73L | |||
| Language | en | |||
| Target File | barbera_ifm.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH | |||
| Citing Item List | sid.inpe.br/bibdigital/2013/10.01.00.07 3 sid.inpe.br/mtc-m21/2012/07.13.14.58.48 1 | |||
| Dissemination | WEBSCI; PORTALCAPES; MGA; COMPENDEX. | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||