| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZGivnK2Y/QesR2 |
| Repository | sid.inpe.br/mtc-m17@80/2007/05.23.19.05 (restricted access) |
| Last Update | 2007:05.23.19.05.06 (UTC) administrator |
| Metadata Repository | sid.inpe.br/mtc-m17@80/2007/05.23.19.05.08 |
| Metadata Last Update | 2018:06.05.03.34.09 (UTC) administrator |
| Secondary Key | INPE--PRE/ |
| ISSN | 0004-6256 |
| Citation Key | LaRosaCarvVazdBarb:2007:StPoSt |
| Title | Truncated star formation in compact groups of galaxies: a stellar population study  |
| Year | 2007 |
| Month | Jan. |
| Access Date | 2024, Apr. 28 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 442 KiB |
| 2. Context | |
| Author | 1 De La Rosa, I. G. 2 Carvalho, Reinaldo Roberto de 3 Vazdekis, A. 4 Barbuy, B. |
| Group | 1 2 DAS-INPE-MCT-BR |
| Affiliation | 1 Instituto de Astrofisica de Canarias 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto de Astrofisica de Canarias 4 Universidade de São Paulo. Instituto Astronômico e Geofísico (USP. IAG) |
| Journal | Astronomical Journal |
| Volume | 133 |
| Pages | 330-346 |
| History (UTC) | 2007-07-10 14:24:10 :: simone -> administrator :: 2010-05-11 02:08:26 :: administrator -> simone :: 2010-05-18 13:12:35 :: simone -> administrator :: 2012-10-23 23:52:48 :: administrator -> simone :: 2007 2013-02-20 15:19:57 :: simone -> administrator :: 2007 2018-06-05 03:34:09 :: administrator -> marciana :: 2007 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | Galaxies: clusters: general Galaxies: evolution Galaxies: interactions ASTROPHYSICS |
| Abstract | We present the results of a study comparing the stellar populations in the elliptical galaxies of Hickson compact groups (HCGs) with those in low-density environments. We analyze a sample of intermediate-resolution (4.25 8 FWHM) spectra of 22 galaxies in HCGs and 12 in the field or in loose groups. Three different population-synthesis models and stellar population analyses are used to make the results more robust. Great care has been taken to correct for the emission contamination of the Balmer lines, used to determine the mean luminosity-weighted ages of the galaxies.We find that, on average, galaxies in HCGs are systematically older and more metal-poor than in the field, in agreement with previous works. The most interesting finding is that the low- galaxies in HCGs show an enhanced [Mg/Fe] ratio and depleted metallicity [Z/H] with respect to their counterparts in the field. This anomalous behavior is interpreted as evidence for the action of a mechanism that truncates the star formation (SF). Hydrodynamic simulations of galaxy mergers (Di Matteo et al. 2005) support this interpretation by predicting the quenching of SF soon after the merger event. Combining this scenario and the evidence presented here, the HCGs, generally considered to be ideal environments for galaxy-galaxy interactions, become ideal places for SF truncation. |
| Area | CEA |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Truncated star formation... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | Truncated_La%20Rosa.pdf |
| User Group | administrator simone |
| Visibility | shown |
| Archiving Policy | denypublisher denyfinaldraft |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH |
| Dissemination | WEBSCI; PORTALCAPES. |
| Host Collection | lcp.inpe.br/ignes/2004/02.12.18.39 cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel documentstage doi e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |