ZTF IC 10 Variable Catalog
To study how massive variable stars affect their environment, we search for variability among Zwicky Transient Facility (ZTF) sources located within the optical extent of the nearby starburst galaxy IC 10. We present the ZTF IC 10 catalog, which classifies 1516 r- band sources and 864 g- band source...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal Supplement Series |
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| Online Access: | https://doi.org/10.3847/1538-4365/adc7fe |
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| author | Zehao Jin Joseph D. Gelfand |
| author_facet | Zehao Jin Joseph D. Gelfand |
| author_sort | Zehao Jin |
| collection | DOAJ |
| description | To study how massive variable stars affect their environment, we search for variability among Zwicky Transient Facility (ZTF) sources located within the optical extent of the nearby starburst galaxy IC 10. We present the ZTF IC 10 catalog, which classifies 1516 r- band sources and 864 g- band sources within a 225″ radius around IC 10 into three categories: 1388 (767) r- ( g )-band nonvariables, 150 (85) r- ( g )-band nonperiodic variables, and 37 (12) r- ( g )-band periodic variables. Among them 101 (48) r- ( g )-band nonperiodic variables and 22 (4) r- ( g )-band periodic variables are inside IC 10. We verify our classification by crossmatching with previous variability catalogs and machine learning–powered classifications. Various analysis including population demographics, color–magnitude diagrams, and crossmatching with a set of different surveys and database such as Gaia, XMM-Newton, Chandra, and SIMBAD are also presented. Based on source density and parallax, we distinguish sources within IC 10 from non–IC 10 sources. For IC 10 sources, we highlight flaring supergiants, a source with a long secondary period, and periodic supergiants including a possible S Doradus luminous blue variable and candidate Miras. For non–IC 10 sources, we present superred sources and compact objects such as a possible long-period subdwarf and a periodic X-ray source. The catalog can serve as a useful database to study the connections between various types of massive stars and their host galaxies. |
| format | Article |
| id | doaj-art-497361f98c994d4ebb6fdcfa5ba34274 |
| institution | OA Journals |
| issn | 0067-0049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj-art-497361f98c994d4ebb6fdcfa5ba342742025-08-20T02:27:35ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492025-01-0127813110.3847/1538-4365/adc7feZTF IC 10 Variable CatalogZehao Jin0https://orcid.org/0009-0000-2506-6645Joseph D. Gelfand1https://orcid.org/0000-0003-4679-1058New York University Abu Dhabi , PO Box 129188, Abu Dhabi, United Arab Emirates; Center for Astrophysics and Space Science (CASS), NYU Abu Dhabi , PO Box 129188, Abu Dhabi, United Arab EmiratesNew York University Abu Dhabi , PO Box 129188, Abu Dhabi, United Arab Emirates; Center for Astrophysics and Space Science (CASS), NYU Abu Dhabi , PO Box 129188, Abu Dhabi, United Arab EmiratesTo study how massive variable stars affect their environment, we search for variability among Zwicky Transient Facility (ZTF) sources located within the optical extent of the nearby starburst galaxy IC 10. We present the ZTF IC 10 catalog, which classifies 1516 r- band sources and 864 g- band sources within a 225″ radius around IC 10 into three categories: 1388 (767) r- ( g )-band nonvariables, 150 (85) r- ( g )-band nonperiodic variables, and 37 (12) r- ( g )-band periodic variables. Among them 101 (48) r- ( g )-band nonperiodic variables and 22 (4) r- ( g )-band periodic variables are inside IC 10. We verify our classification by crossmatching with previous variability catalogs and machine learning–powered classifications. Various analysis including population demographics, color–magnitude diagrams, and crossmatching with a set of different surveys and database such as Gaia, XMM-Newton, Chandra, and SIMBAD are also presented. Based on source density and parallax, we distinguish sources within IC 10 from non–IC 10 sources. For IC 10 sources, we highlight flaring supergiants, a source with a long secondary period, and periodic supergiants including a possible S Doradus luminous blue variable and candidate Miras. For non–IC 10 sources, we present superred sources and compact objects such as a possible long-period subdwarf and a periodic X-ray source. The catalog can serve as a useful database to study the connections between various types of massive stars and their host galaxies.https://doi.org/10.3847/1538-4365/adc7feTransient sourcesTime domain astronomyVariable starsPeriodic variable starsLight curve classificationPeriod search |
| spellingShingle | Zehao Jin Joseph D. Gelfand ZTF IC 10 Variable Catalog The Astrophysical Journal Supplement Series Transient sources Time domain astronomy Variable stars Periodic variable stars Light curve classification Period search |
| title | ZTF IC 10 Variable Catalog |
| title_full | ZTF IC 10 Variable Catalog |
| title_fullStr | ZTF IC 10 Variable Catalog |
| title_full_unstemmed | ZTF IC 10 Variable Catalog |
| title_short | ZTF IC 10 Variable Catalog |
| title_sort | ztf ic 10 variable catalog |
| topic | Transient sources Time domain astronomy Variable stars Periodic variable stars Light curve classification Period search |
| url | https://doi.org/10.3847/1538-4365/adc7fe |
| work_keys_str_mv | AT zehaojin ztfic10variablecatalog AT josephdgelfand ztfic10variablecatalog |