Academic Journal
The Next Generation Virgo Cluster Survey (NGVS). III. A Catalog of Surface Brightness Fluctuation Distances and the Three-dimensional Distribution of Galaxies in the Virgo Cluster
| العنوان: | The Next Generation Virgo Cluster Survey (NGVS). III. A Catalog of Surface Brightness Fluctuation Distances and the Three-dimensional Distribution of Galaxies in the Virgo Cluster |
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| المؤلفون: | Michele Cantiello, John P. Blakeslee, Laura Ferrarese, Patrick Côté, Gabriella Raimondo, Jean-Charles Cuillandre, Patrick R. Durrell, Stephen Gwyn, Nandini Hazra, Eric W. Peng, Joel C. Roediger, Rúben Sánchez-Janssen, Max Kurzner |
| المصدر: | The Astrophysical Journal, Vol 966, Iss 1, p 145 (2024) |
| بيانات النشر: | IOP Publishing |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Distance indicators, Galaxy distances, Distance measure, Virgo Cluster, Stellar populations, Population II stars, Astrophysics, QB460-466 |
| الوصف: | The surface brightness fluctuation (SBF) method is a robust and efficient way of measuring distances to galaxies containing evolved stellar populations. Although many recent applications of the method have used space-based imaging, SBF remains a powerful technique for ground-based telescopes. Deep, wide-field imaging surveys with subarcsecond seeing enable SBF measurements for numerous nearby galaxies. Using a preliminary calibration, Cantiello et al. presented SBF distances for 89 bright, mainly early-type galaxies observed in the Next Generation Virgo Cluster Survey. Here we present a refined calibration and SBF distances for 278 galaxies extending several magnitudes fainter than in previous work. The derived distances have uncertainties of 5%–12% depending on the properties of the individual galaxies, and our sample is more than 3 times larger than any previous SBF study of this region. Virgo has a famously complex structure with numerous subclusters, clouds, and groups; we associate individual galaxies with the various substructures and map their three-dimensional spatial distribution. Curiously, subcluster A, centered around M87, appears to have two peaks in distance: the main peak at ∼16.5 Mpc, and a smaller one at ∼19.4 Mpc. Subclusters B and C have distances of ∼15.8 Mpc. The W and W ${}^{{\prime} }$ groups form a filament-like structure, extending more than 15 Mpc behind the cluster with a commensurate velocity increase of ∼1000 km s ^−1 along its length. These measurements are a valuable resource for future studies of the relationship between galaxy properties and local environment within a dynamic and evolving region. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1538-4357 |
| Relation: | https://doi.org/10.3847/1538-4357/ad3453; https://doaj.org/toc/1538-4357; https://doaj.org/article/f417bfdabcaf4edfa127457099552216 |
| DOI: | 10.3847/1538-4357/ad3453 |
| الاتاحة: | https://doi.org/10.3847/1538-4357/ad3453 https://doaj.org/article/f417bfdabcaf4edfa127457099552216 |
| رقم الانضمام: | edsbas.CE1633AF |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 15384357 |
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| DOI: | 10.3847/1538-4357/ad3453 |