| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34T/4AQP6H2 | |||
| Repository | sid.inpe.br/mtc-m21d/2024/02.26.19.30 | |||
| Last Update | 2024:02.26.19.30.53 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21d/2024/02.26.19.30.53 | |||
| Metadata Last Update | 2024:03.16.07.28.11 (UTC) administrator | |||
| DOI | 10.1093/mnras/stad3678 | |||
| ISSN | 0035-8711 1365-2966 | |||
| Citation Key | StecchiniJaDiDAOlPaSa:2023:ReEpOr | |||
| Title | Revised ephemeris and orbital period derivative of the supersoft X-ray source CAL 87 based on 34 yr of observations  | |||
| Year | 2023 | |||
| Month | Nov. | |||
| Access Date | 2024, May 18 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 956 KiB | |||
| 2. Context | ||||
| Author | 1 Stecchini, Paulo Eduardo Freire 2 Jablonski, Francisco José 3 Diaz, M. P. 4 D'Amico, Flávio 5 Oliveira, A. S. 6 Palivanas, N. 7 Saito, R. K. | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JH4Q | |||
| ORCID | 1 0000-0002-2503-2434 2 3 0000-0002-6040-0458 4 5 0000-0001-6422-9486 | |||
| Group | 1 DIAST-CGCE-INPE-MCTI-GOV-BR 2 DIAST-CGCE-INPE-MCTI-GOV-BR 3 4 DIAST-CGCE-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Universidade de São Paulo (USP) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Universidade do Vale do Paraíba (UNIVAP) 6 Universidade do Vale do Paraíba (UNIVAP) 7 Universidade Federal de Santa Catarina (UFSC) | |||
| Author e-Mail Address | 1 paulo.stecchini@inpe.br 2 francisco.jablonski@inpe.br 3 4 flavio.damico@inpe.br | |||
| Journal | Monthly Notices of the Royal Astronomical Society | |||
| Volume | 527 | |||
| Number | 3 | |||
| Pages | 8991-8995 | |||
| Secondary Mark | A1_QUÍMICA A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_ASTRONOMIA_/_FÍSICA B2_ENSINO B5_ENGENHARIAS_IV | |||
| History (UTC) | 2024-02-26 19:30:53 :: simone -> administrator :: 2024-02-26 19:30:59 :: administrator -> simone :: 2023 2024-02-26 19:32:13 :: simone -> administrator :: 2023 2024-03-16 07:28:11 :: 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 | |||
| Keywords | stars: individual: CAL 87 white dwarfs X-rays: binaries | |||
| Abstract | In this study, we present an analysis of over 34 yr of observational data from CAL 87, an eclipsing supersoft X-ray source. The primary aim of our study, which combines previously analysed measurements as well as unexplored publicly available data sets, is to examine the orbital period evolution of CAL 87. After meticulously and consistently determining the eclipse timings, we constructed an O - C (observed minus calculated) diagram using a total of 38 data points. Our results provide confirmation of a positive derivative in the system's orbital period, with a determined value of P-center dot= +8.18 +/- 1.46 x 10(-11) s s(-1). We observe a noticeable jitter in the eclipse timings and additionally identify a systematic delay in the X-ray eclipses compared to those observed in longer wavelengths. We discuss the interplay of the pertinent factors that could contribute to a positive period derivative and the inherent variability in the eclipses. | |||
| Area | CEA | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > Revised ephemeris and... | |||
| 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/8JMKD3MGP3W34T/4AQP6H2 | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34T/4AQP6H2 | |||
| Language | en | |||
| Target File | stad3678.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | urlib.net/www/2021/06.04.03.40.25 | |||
| Next Higher Units | 8JMKD3MGPCW/46KTFK8 | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.46.25 2 sid.inpe.br/bibdigital/2022/04.03.17.52 2 | |||
| Dissemination | WEBSCI; PORTALCAPES; MGA; COMPENDEX. | |||
| 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 label lineage mark nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||