The Fornax3D project: Planetary nebulae catalogue and independent distance measurements to Fornax cluster galaxies
| Autor: | Ling Zhu, P. T. de Zeeuw, Sébastien Viaene, B. Nedelchev, T. W. Spriggs, Ignacio Martín-Navarro, Richard M. McDermid, Ralf Napiwotzki, P. M. Galán-de Anta, Jesús Falcón-Barroso, Dimitri A. Gadotti, G. van de Ven, K. Fahrion, Mariya Lyubenova, F. Pinna, Enrichetta Iodice, Enrico Maria Corsini, Lodovico Coccato, L. Morelli, Marc Sarzi |
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| Rok vydání: | 2021 |
| Předmět: |
Stellar mass
Astrophysics - astrophysics of galaxies Population Continuum (design consultancy) FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics elliptical and lenticular cD [Galaxies] Galaxies: clusters: individual: Fornax Galaxies: distances and redshifts Galaxies: elliptical and lenticular cD Planetary nebulae: general Techniques: imaging spectroscopy 01 natural sciences 0103 physical sciences distances and redshifts [Galaxies] Astrophysics::Solar and Stellar Astrophysics Surface brightness Fornax Cluster education 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics Luminosity function (astronomy) Physics education.field_of_study Galaxies: elliptical and lenticular 010308 nuclear & particles physics imaging spectroscopy [Techniques] Astronomy and Astrophysics Planetary nebula Galaxy CD clusters: individual: Fornax [Galaxies] Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) general [Planetary nebulae] |
| Zdroj: | Astronomy and Astrophysics, 653, 1-21 Spriggs, T W, Sarzi, M, Galán-De Anta, P M, Napiwotzki, R, Viaene, S, Nedelchev, B, Coccato, L, Corsini, E M, Fahrion, K, Falcón-Barroso, J, Gadotti, D A, Iodice, E, Lyubenova, M, Martín-Navarro, I, McDermid, R M, Morelli, L, Pinna, F, van de Ven, G, de Zeeuw, P T & Zhu, L 2021, ' The Fornax3D project: planetary nebulae catalogue and independent distance measurements to Fornax cluster galaxies ', Astronomy and Astrophysics, vol. 653, A167 . https://doi.org/10.1051/0004-6361/202141314 Astronomy & Astrophysics |
| DOI: | 10.48550/arxiv.2107.09680 |
| Popis: | Extragalactic planetary nebulae (PNe) offer a way to determine the distance to their host galaxies thanks to the nearly universal shape of the planetary nebulae luminosity function (PNLF). Accurate PNe distance measurements rely on obtaining well-sampled PNLFs and the number of observed PNe scales with the encompassed stellar mass. This means either disposing of wide-field observations or focusing on the bright central regions of galaxies. In this work we take this second approach and conduct a census of the PNe population in the central regions of galaxies in the Fornax cluster, using VLT/MUSE data for the early-type galaxies observed over the course of the Fornax3D survey. Using such integral-field spectroscopic observations to carefully separate the nebular emission from the stellar continuum, we isolated [OIII] 5007 {\AA} sources of interest, filtered out unresolved impostor sources or kinematic outliers, and present a catalogue of 1350 unique PNe sources across 21 early-type galaxies, which includes their positions, [OIII] 5007 {\AA} line magnitudes, and line-of-sight velocities. Using the PNe catalogued within each galaxy, we present independently derived distance estimates based on the fit to the entire observed PNLF observed while carefully accounting for the PNe detection incompleteness. With these individual measurements, we arrive at an average distance to the Fornax cluster itself of 19.86 $\pm$ 0.32 Mpc ($\mu_{PNLF}$ = 31.49 $\pm$ 0.04 mag). Our PNLF distance measurements agree well with previous distances based on surface brightness fluctuations, finding no significant systematic offsets between the two methods as otherwise reported in previous studies. Comment: 26 pages, 16 figures, 3 tables. Accepted for publication in Astronomy and Astrophysics Journal. Corrected Fig. 7 legend |
| Databáze: | OpenAIRE |
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