2MTF - VII. 2MASS Tully-Fisher survey final data release:distances for 2,062 nearby spiral galaxies
| Autor: | Bärbel S. Koribalski, Lister Staveley-Smith, Cullan Howlett, Fei Qin, Lucas M. Macri, Thomas H. Jarrett, Karen L. Masters, Aidan C. Crook, D. Heath Jones, Tao Hong, Christopher M. Springob |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Spiral galaxy Cosmology and Nongalactic Astrophysics (astro-ph.CO) 010308 nuclear & particles physics Infrared astro-ph.GA Cosmic microwave background FOS: Physical sciences Astronomy and Astrophysics Astrophysics Lambda 01 natural sciences Astrophysics - Astrophysics of Galaxies Galaxy Amplitude Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) 0103 physical sciences Range (statistics) Peculiar velocity astro-ph.CO 010303 astronomy & astrophysics Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Hong, T, Staveley-Smith, L, Masters, K L, Springob, C M, Macri, L M, Koribalski, B S, Jones, D H, Jarrett, T H, Crook, A C, Howlett, C & Qin, F 2019, ' 2MTF-VII. 2MASS Tully-Fisher survey final data release : distances for 2,062 nearby spiral galaxies ', Monthly Notices of the Royal Astronomical Society . https://doi.org/10.1093/mnras/stz1413 |
| DOI: | 10.1093/mnras/stz1413 |
| Popis: | We present the final distance measurements for the 2MASS Tully-Fisher (2MTF) survey. The final 2MTF catalogue contains 2,062 nearby spiral galaxies in the CMB frame velocity range of 600 km s$^{-1}$ $< cz < 10,000$ km s$^{-1}$ with a mean velocity of 4,805 km s$^{-1}$. The main update in this release is the replacement of some archival HI data with newer ALFALFA data. Using the 2MTF template relation, we calculate the distances and peculiar velocities of all 2MTF galaxies. The mean uncertainties of the linear distance measurements are around 22\% in all three infrared bands. 2MTF measurements agree well with the distances from the Cosmicflows-3 compilation, which contains 1,117 common galaxies, including 28 with SNIa distance measurements. Using distances estimated from the `3-bands combined' 2MTF sample and a $\chi^2$ minimization method, we find best-fit bulk flow amplitudes of $308 \pm 26$ km s$^{-1}$, $318 \pm 29$ km s$^{-1}$, and $286 \pm 25$ km s$^{-1}$ at depths of $R_I = $ 20, 30 and 40 $h^{-1}{\rm Mpc}$, respectively, which is consistent with the $\Lambda$CDM model and with previous 2MTF results with different estimation techniques and a preliminary catalogue. Comment: 8 pages, 6 figures, 2 tables, accepted for publication in MNRAS |
| Databáze: | OpenAIRE |
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