The Fornax Cluster VLT Spectroscopic Survey II - Planetary Nebulae kinematics within 200 kpc of the cluster core
| Autor: | E. Iodice, Chiara Spiniello, M. Capaccioli, Nicola R. Napolitano, Magda Arnaboldi, P. Schipani, M. Spavone, C. Tortora, Lodovico Coccato, Ortwin Gerhard, Maurizio Paolillo, Reynier Peletier, Michele Cantiello |
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| Přispěvatelé: | Spiniello, C., Napolitano, N. R., Arnaboldi, M., Tortora, C., Coccato, L., Capaccioli, M., Gerhard, O., Iodice, E., Spavone, M., Cantiello, M., Peletier, R., Paolillo, M., Schipani, P., Astronomy |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
COMA CLUSTER Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Catalogue dark matter VIRGO-CLUSTER Astronomical data base ELLIPTIC GALAXIES GLOBULAR-CLUSTERS 0103 physical sciences LARGE-SCALE STRUCTURE Coma Cluster Astrophysics::Solar and Stellar Astrophysics galaxies: formation EARLY-TYPE GALAXIES INTRACLUSTER LIGHT Fornax Cluster 10. No inequality 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics catalogues galaxies: kinematics and dynamics Physics Very Large Telescope 010308 nuclear & particles physics Velocity dispersion Astronomy and Astrophysics DIFFUSE LIGHT Astronomy and Astrophysic Virgo Cluster Planetary nebula Astrophysics - Astrophysics of Galaxies Galaxy COLD DARK-MATTER COSMOLOGICAL SIMULATIONS Space and Planetary Science Astronomical data bases Globular cluster Astrophysics of Galaxies (astro-ph.GA) Galaxies: Kinematics and dynamic Astrophysics::Earth and Planetary Astrophysics Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Monthly Notices of the Royal Astronomical Society, 477(2), 1867-1879. Oxford University Press Monthly Notices of the Royal Astronomical Society |
| ISSN: | 0035-8711 |
| Popis: | We present the largest and most spatially extended planetary nebulae (PNe) catalog ever obtained for the Fornax cluster. We measured velocities of 1452 PNe out to 200 kpc in the cluster core using a counter-dispersed slitless spectroscopic technique with data from FORS2 on the VLT. With such extended spatial coverage, we can study separately the stellar halos of some of the cluster main galaxies and the intracluster light. In this second paper of the Fornax Cluster VLT Spectroscopic Survey (FVSS), we identify and classify the emission-line sources, describe the method to select PNe and calculate their coordinates and velocities from the dispersed slitless images. From the PN 2D velocity map we identify stellar streams that are possibly tracing the gravitational interaction of NGC1399 with NGC1404 and NGC1387. We also present the velocity dispersion profile out to $\sim 200$ kpc radii, which shows signatures of a superposition of the bright central galaxy and the cluster potential, with the latter clearly dominating the regions outside R $\sim 1000$" ($\sim 100$ kpc). 13 pages, 8 figures, Accepted for publication in MNRAS, companion paper FVSS-I (Pota et al, 2018, submitted) |
| Databáze: | OpenAIRE |
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