| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3QL7GT5 | |||
| Repository | sid.inpe.br/mtc-m21b/2018/03.02.16.08 | |||
| Last Update | 2018:03.02.16.08.47 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2018/03.02.16.08.47 | |||
| Metadata Last Update | 2018:07.04.17.52.34 (UTC) administrator | |||
| DOI | 10.3847/1538-4357/aaa4f8 | |||
| ISSN | 0004-637X 1538-4357 | |||
| Label | self-archiving-INPE-MCTIC-GOV-BR | |||
| Citation Key | VitorianoBott:2018:UsCrEn | |||
| Title | Using cross entropy optimization to model active galactic nuclei light curves from VLBA MOJAVE Images  | |||
| Year | 2018 | |||
| Access Date | 2024, Apr. 16 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 2624 KiB | |||
| 2. Context | ||||
| Author | 1 Vitoriano, R. P. 2 Botti, Luiz Cláudio Lima | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JHN7 | |||
| Group | 1 2 DIDAS-CGCEA-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Universidade Presbiteriana Mackenzie 2 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 2 botti@craae.mackenzie.br | |||
| Journal | Astrophysical Journal | |||
| Volume | 854 | |||
| Number | 1 | |||
| Pages | e59 | |||
| Secondary Mark | A1_QUÍMICA A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A1_ASTRONOMIA_/_FÍSICA A2_ENGENHARIAS_IV B2_ENSINO | |||
| History (UTC) | 2018-03-02 16:10:12 :: simone -> administrator :: 2018 2018-06-06 09:26:53 :: administrator -> simone :: 2018 2018-06-20 17:16:58 :: simone -> administrator :: 2018 2018-07-04 17:52:34 :: administrator -> simone :: 2018 | |||
| 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: active – galaxies: jets – galaxies: nuclei – methods: statistical – radio continuum: galaxies – techniques: interferometric | |||
| Abstract | We present in this article a new method to derive the observed properties of outbursts in relativistic jets. We use the VLBI MOJAVE maps to obtain the light curves, based on the principle that the variability of extragalactic sources, in this case 3C 279 and 4C +29.45, should appear in high resolution observations since 1996 until 2016. The use of the cross entropy method (CE) can accurately determine the ranges of parameters for a sequence of outbursts based on the shock-wave model, where the decay/rise timescale ratio has a small spread and the use of a unique index 1.3 generates a good fit modeled by functions of outbursts and by the model of the three stages. By the CE method, one can automatically get the start epochs as well as the occurrence of rise and decline times of the outbursts in the light curves. The values found are in agreement with the power-law distribution of energy, which shows that the cooling of electrons is a predominant process during the initial phase of the shock model evolution. The results of the decomposition show that the outbursts match the VLBI components observed in jets in addition to showing strong evidence of the peaks in the frequencies of 15.3 GHz. With this, we can model the shock waves with reference to the distance at the core of AGN to obtain the Doppler factor and the Lorentz factor. | |||
| Area | CEA | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Using cross entropy... | |||
| 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/8JMKD3MGP3W34P/3QL7GT5 | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34P/3QL7GT5 | |||
| Language | en | |||
| User Group | self-uploading-INPE-MCTI-GOV-BR simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Read Permission | allow from all | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Linking | Trabalho não Vinculado à Tese/Dissertação | |||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH | |||
| Citing Item List | 5 | |||
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject targetfile tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||