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1. Identity statement
Reference TypeBook Section
Sitemtc-m21b.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34P/3MB5PAH
Repositorysid.inpe.br/mtc-m21b/2016/08.25.16.28   (restricted access)
Last Update2018:08.30.12.58.30 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21b/2016/08.25.16.28.05
Metadata Last Update2018:08.30.12.58.30 (UTC) simone
Secondary KeyINPE--/
DOI10.1007/978-3-319-19330-4_33
ISBN978-331919329-8
Citation KeyTortoraLaNaRoFeCa:2016:SyVaCe
TitleSystematic variation of central mass density slope in early-type galaxies
Year2016
Access Date2024, Oct. 31
Secondary TypePRE LI
Number of Files1
Size1295 KiB
2. Context
Author1 Tortora, C.
2 La Barbera, F.
3 Napolitano, N. R.
4 Romanowsky, A. J.
5 Ferreras, I.
6 Carvalho, Reinaldo Ramos de
Resume Identifier1
2
3
4
5
6 8JMKD3MGP5W/3C9JJ5B
Group1
2
3
4
5
6 DAS-CEA-INPE-MCTI-GOV-BR
Affiliation1 Osservatorio Astronomico di Capodimonte
2 Osservatorio Astronomico di Capodimonte
3 Osservatorio Astronomico di Capodimonte
4 San José State University
5 University College London
6 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1 ctortora@na.astro.it
2
3
4
5
6 reinaldo@das.inpe.br
EditorNapolitano, Nicola R.
Longo, Giuseppe
Marconi, Marcella
Paolilo, Maurizio
Iodice, Enrichetta
Book TitleThe universe of digital sky surveys
PublisherSpringer
Volume42
Pages215-218
Series TitleAstrophysics and Space Science Proceedings
History (UTC)2016-08-25 16:28:50 :: simone -> administrator :: 2016
2018-06-04 02:41:04 :: administrator -> simone :: 2016
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsIsotherms
Surveys Dark matter halos
Effective radius
Fitting parameters
Galaxy formations
Mass densities
Smallest systems
Systematic variation
Two-component
AbstractWe study the total density distribution in the central regions (≾.1 effective radius, Re) 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*=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 (~Re=2), while for the lowmass 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.
AreaCEA
doc Directory Contentaccess
source Directory Contentthere are no files
agreement Directory Content
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4. Conditions of access and use
Languageen
User Groupsimone
Visibilityshown
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Mirror Repositoryurlib.net/www/2011/03.29.20.55
Next Higher Units8JMKD3MGPCW/3ETR8EH
DisseminationBNDEPOSITOLEGAL
Host Collectionsid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notes
NotesConference on Universe of Digital Sky Surveys, 2014; Naples; Italy; 25 - 28 Nov. 2014.
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7. Description control
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