Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/26249
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | TORTORA, CRESCENZO | en_US |
dc.contributor.author | LA BARBERA, Francesco | en_US |
dc.contributor.author | NAPOLITANO, NICOLA ROSARIO | en_US |
dc.contributor.author | Romanowsky, A. J. | en_US |
dc.contributor.author | Ferreras, I. | en_US |
dc.contributor.author | de Carvalho, R. R. | en_US |
dc.date.accessioned | 2020-06-29T08:54:01Z | - |
dc.date.available | 2020-06-29T08:54:01Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.isbn | 978-3-319-19329-8 | en_US |
dc.identifier.issn | 1570-6591 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26249 | - |
dc.description.abstract | We study the total density distribution in the central regions (≲ 1 effective radius, R <SUB>e</SUB>) of early-type galaxies (ETGs), using data from the SPIDER survey (La Barbera et al., MNRAS 408:1313, 2010). We model each galaxy with two components (dark matter halo + stars), exploring different assumptions for the dark matter (DM) halo profile, and leaving stellar mass-to-light (M <SUB>⋆</SUB>/L) ratios as free fitting parameters to the data. For a Navarro et al. (ApJ 462:563, 1996) profile, the slope of the total mass profile is non-universal. For the most massive and largest ETGs, the profile is isothermal in the central regions (∼ R<SUB>e</SUB>/2), while for the low-mass and smallest systems, the profile is steeper than isothermal, with slopes similar to those for a constant-M/L profile. For a concentration-mass relation steeper than that expected from simulations, the correlation of density slope with mass tends to flatten. Our results clearly point to a "non-homology" in the total mass distribution of ETGs, which simulations of galaxy formation suggest may be related to a varying role of dissipation with galaxy mass. | en_US |
dc.language.iso | eng | en_US |
dc.title | Systematic Variation of Central Mass Density Slope in Early-Type Galaxies | en_US |
dc.type | Conference paper | - |
dc.identifier.doi | 10.1007/978-3-319-19330-4_33 | en_US |
dc.identifier.scopus | 2-s2.0-84978958353 | en_US |
dc.identifier.isi | 000389802600034 | en_US |
dc.identifier.url | https://arxiv.org/abs/1507.01210 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 42 | en_US |
dc.relation.firstpage | 215 | en_US |
dc.type.referee | REF_4 | en_US |
dc.description.international | sì | en_US |
dc.relation.alleditors | Napolitano, Nicola R.; Longo, Giuseppe; Marconi, Marcella; Paolillo, Maurizio; Iodice, Enrichetta | en_US |
dc.relation.ispartofbook | The Universe of Digital Sky Surveys: a Meeting to Honour the 70th Birthday of Massimo Capaccioli | en_US |
dc.type.invited | sì | en_US |
dc.relation.conferencename | The Universe of Digital Sky Surveys: a Meeting to Honour the 70th Birthday of Massimo Capaccioli | en_US |
dc.relation.conferenceplace | Napoli, Italy | en_US |
dc.relation.conferencedate | 25-28 November, 2014 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 273 Contributo in Atti di convegno | - |
dc.relation.series | ASTROPHYSICS AND SPACE SCIENCE PROCEEDINGS | - |
dc.identifier.adsbibcode | 2016ASSP...42..215T | 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 | Conference paper | - |
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.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0001-7958-6531 | - |
crisitem.author.orcid | 0000-0003-1181-6841 | - |
crisitem.author.orcid | 0000-0003-0911-8884 | - |
crisitem.journal.journalissn | 1570-6591 | - |
crisitem.journal.ance | E210911 | - |
È visualizzato nelle collezioni: | 3.01 Contributi in Atti di convegno |
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File | Descrizione | Dimensioni | Formato | |
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Tortora+15_slope_pro.pdf | preprint | 34.32 kB | Adobe PDF | Visualizza/apri |
Tortora2016_Chapter_SystematicVariationOfCentralMa.pdf | [Administrators only] | 118.43 kB | Adobe PDF |
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