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http://hdl.handle.net/20.500.12386/32050
Titolo: | Accretion and outflows in young stars with CUBES | Autori: | ALCALA', JUAN MANUEL CUPANI, Guido Evans, C. J. FRANCHINI, Mariagrazia NISINI, Brunella |
Data pubblicazione: | 2022 | Rivista: | EXPERIMENTAL ASTRONOMY | Abstract: | The science case on studies of accretion and outflows in low-mass (<1.5M⊙) young stellar objects (YSOs) with the new CUBES instrument is presented. We show the need for a high-sensitivity, near-ultraviolet (NUV) spectrograph like CUBES, with a resolving power at least four times that of X-Shooter and combined with UVES via a fibrelink for simultaneous observations. Simulations with the CUBES exposure time calculator and the end-to-end software show that a significant gain in signal-to-noise can be achieved compared to current instruments, for both the spectral continuum and emission lines, including for relatively embedded YSOs. Our simulations also show that the low-resolution mode of CUBES will be able to observe much fainter YSOs (V ∼ 22 mag) in the NUV than we can today, allowing us extend studies to YSOs with background-limited magnitudes. The performance of CUBES in terms of sensitivity in the NUV will provide important new insights into the evolution of circumstellar disks, by studying the accretion, jets/winds and photo-evaporation processes, down to the low-mass brown dwarf regime. CUBES will also open-up new science as it will be able to observe targets that are several magnitudes fainter than those reachable with current instruments, facilitating studies of YSOs at distances of ∼ kpc scale. This means a step-change in the field of low-mass star formation, as it will be possible to expand the science case from relatively local star-forming regions to a large swathe of distances within the Milky Way. | URI: | http://hdl.handle.net/20.500.12386/32050 | URL: | https://api.elsevier.com/content/abstract/scopus_id/85126359725 https://link.springer.com/article/10.1007/s10686-022-09832-1 |
ISSN: | 0922-6435 | DOI: | 10.1007/s10686-022-09832-1 | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
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