The MURALES survey. V. Jet-induced star formation in 3C 277.3 (Coma A)
| Autor: | Capetti, A., Balmaverde, B., Tadhunter, C., Marconi, A., Venturi, G., Chiaberge, M., Baldi, R. D., Baum, S., Gilli, R., Grandi, P., Meyer, Eileen T., Miley, G., O'Dea, C., Sparks, W., Torresi, E., Tremblay, G. |
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| Rok vydání: | 2021 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1051/0004-6361/202141965 |
| Popis: | We present observations obtained with the VLT/MUSE optical integral field spectrograph of the radio source 3C277.3, located at a redshift of 0.085 and associated with the galaxy Coma A. An emission line region fully enshrouds the double-lobed radio source, which is ~60 kpc x 90 kpc in size. Based on the emission line ratios, we identified five compact knots in which the gas ionization is powered by young stars located as far as ~60 kpc from the host. The emission line filaments surrounding the radio emission are compatible with ionization from fast shocks (with a velocity of 350-500 km/s), but a contribution from star formation occurring at the edges of the radio source is likely. Coma A might be a unique example in the local Universe in which the expanding outflow triggers star formation throughout the whole radio source. Comment: Pre-proofs version - Accepted for publication in A&A |
| Databáze: | arXiv |
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