| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m21d.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP3W34T/49RH78L |
| Repository | sid.inpe.br/mtc-m21d/2023/09.18.12.39 |
| Last Update | 2023:09.18.12.46.47 (UTC) simone |
| Metadata Repository | sid.inpe.br/mtc-m21d/2023/09.18.12.39.13 |
| Metadata Last Update | 2024:01.02.17.16.46 (UTC) administrator |
| DOI | 10.3847/1538-4357/ace596 |
| ISSN | 0004-637X 1538-4357 |
| Label | 20230918 |
| Citation Key | DamineliHNMWCGRHMEHMPSRHJTMCHHJBD:2023:ArThCa |
| Title | The Long-term Spectral Changes of Eta Carinae: Are they Caused by a Dissipating Occulter as Indicated by cmfgen Models?  |
| Year | 2023 |
| Access Date | 2024, May 18 |
| Type of Work | journal article |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 3869 KiB |
| 2. Context | |
| Author | 1 Damineli, Augusto 2 Hillier, Desmond J. 3 Navarete, Felipe 4 Moffat, Anthony F. J. 5 Weigelt, Gerd 6 Corcoran, Michael F. 7 Gull, Theodore. R. 8 Richardson, Noel D. 9 Ho, Peter 10 Madura, Thomas I. 11 Espinoza-Galeas, David 12 Hartman, Henrik 13 Morris, Patrick 14 Pickett, Connor S. 15 Stevens, Ian R. 16 Russell, Christopher M. P. 17 Hamaguchi, Kenji 18 Jablonski, Francisco José 19 Teodoro, Mairan 20 McGee, Padric 21 Cacella, Paulo 22 Heathcote, Bernard 23 Harrison, Ken M. 24 Johnston, Mark 25 Bohlsen, Terry 26 Di Scala, Giorgio |
| Resume Identifier | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 8JMKD3MGP5W/3C9JH4Q |
| ORCID | 1 0000-0002-7978-2994 2 0000-0001-5094-8017 3 0000-0002-0284-0578 4 0000-0002-4333-9755 5 0000-0001-9754-2233 6 0000-0002-7762-3172 7 0000-0002-6851-5380 8 0000-0002-2806-9339 9 10 0000-0001-7697-2955 11 0000-0003-2971-0439 12 0000-0001-9853-2555 13 0000-0002-5186-4381 14 15 0000-0001-7673-4340 16 0000-0002-1942-7296 17 0000-0001-7515-2779 18 0000-0002-0386-2306 19 0000-0002-8289-3660 20 21 0000-0002-3546-3190 |
| Group | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 DIAST-CGCE-INPE-MCTI-GOV-BR |
| Affiliation | 1 Universidade de São Paulo (USP) 2 Pittsburgh Particle Physics Astrophysics Cosmology Center (PITT PACC) 3 SOAR Telescope/NSF's NOIRLab 4 Université de Montréal 5 Max Planck Institute for Radio Astronomy 6 NASA/Goddard Space Flight Center 7 NASA/Goddard Space Flight Center 8 Embry-Riddle Aeronautical University 9 University of California Santa Cruz 10 San José State University 11 Universidad Nacional Autonoma de Honduras 12 Malmö University 13 California Institute of Technology 14 Embry-Riddle Aeronautical University 15 University of Birmingham 16 University of Delaware 17 NASA/Goddard Space Flight Center 18 Instituto Nacional de Pesquisas Espaciais (INPE) 19 Space Telescope Science Institute 20 University of Adelaide 21 SASER Team 22 SASER Team 23 SASER Team 24 SASER Team 25 SASER Team 26 SASER Team |
| Author e-Mail Address | 1 augusto.damineli@iag.usp.br 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 francisco.jablonski@inpe.br |
| Journal | Astrophysical Journal |
| Volume | 954 |
| Number | 1 |
| Pages | e65 |
| Secondary Mark | A1_QUÍMICA A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A1_ASTRONOMIA_/_FÍSICA A2_ENGENHARIAS_IV B2_ENSINO |
| History (UTC) | 2023-09-18 12:39:13 :: administrator -> simone :: 2023-09-18 12:46:49 :: simone -> administrator :: 2023 2023-09-18 12:46:50 :: administrator -> simone :: 2023 2023-09-18 12:47:03 :: simone -> administrator :: 2023 2024-01-02 17:16:46 :: administrator -> simone :: 2023 |
| 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 |
| Abstract | Eta Carinae ( ⢠Car) exhibits a unique set of P Cygni profiles with both broad and narrow components. Over many decades, the spectrum has changed - there has been an increase in observed continuum fluxes and a decrease in Fe ii and H i emission-line equivalent widths. The spectrum is evolving toward that of a P Cygni star such as P Cygni itself and HDE 316285. The spectral evolution has been attributed to intrinsic variations such as a decrease in the mass-loss rate of the primary star or differential evolution in a latitudinal-dependent stellar wind. However, intrinsic wind changes conflict with three observational results: the steady long-term bolometric luminosity; the repeating X-ray light curve over the binary period; and the constancy of the dust-scattered spectrum from the Homunculus. We extend previous work that showed a secular strengthening of P Cygni absorptions by adding more orbital cycles to overcome temporary instabilities and by examining more atomic transitions. cmfgen modeling of the primary wind shows that a time-decreasing mass-loss rate is not the best explanation for the observations. However, models with a small dissipating absorber in our line of sight can explain both the increase in brightness and changes in the emission and P Cygni absorption profiles. If the spectral evolution is caused by the dissipating circumstellar medium, and not by intrinsic changes in the binary, the dynamical timescale to recover from the Great Eruption is much less than a century, different from previous suggestions. © 2023. The Author(s). Published by the American Astronomical Society. |
| Area | CEA |
| Arrangement | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > The Long-term Spectral... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34T/49RH78L |
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34T/49RH78L |
| Language | en |
| Target File | Damineli_2023_ApJ_954_65.pdf |
| User Group | administrator simone |
| Reader Group | administrator simone |
| Visibility | shown |
| Archiving Policy | allowpublisher allowfinaldraft |
| Read Permission | allow from all |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/46KTFK8 |
| Citing Item List | sid.inpe.br/bibdigital/2022/04.03.17.52 1 |
| URL (untrusted data) | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85170544478&doi=10.3847%2f1538-4357%2face596&partnerID=40&md5=9258ad1dc999ff5ad4307524fe0a3f82 |
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. |
| Host Collection | urlib.net/www/2021/06.04.03.40 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords lineage mark mirrorrepository month nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype |
| 7. Description control | |
| e-Mail (login) | simone |
| update | |