Accretion and Outflows in Young Stars with CUBES
arXiv:2203.15581 · doi:10.1007/s10686-022-09832-1
Abstract
The science case on studies of accretion and outflows in low-mass (1.5 ) 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.
References in corpus (22)
- X-Shooter spectroscopy of young stellar objects in Lupus: Accretion properties of class II and transitional objects
- A Steeper than Linear Disk Mass-Stellar Mass Scaling Relation
- UV excess measures of accretion onto young very low-mass stars and brown dwarfs
- An Analysis of the Shapes of Interstellar Extinction Curves. VII. Milky Way Spectrophotometric Optical-through-Ultraviolet Extinction and Its R-Dependence
- Mapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry
- Accretion Disks around Young Stars: Lifetimes, Disk Locking and Variability
- Temperaments of young stars: Rapid mass-accretion rate changes in T Tauri and Herbig Ae stars
- Connection between jets, winds and accretion in T Tauri stars: the X-shooter view
- ALMA survey of Class II protoplanetary disks in Corona Australis: a young region with low disk masses
- Constraints from Dust Mass and Mass Accretion Rate Measurements on Angular Momentum Transport in Protoplanetary Disks
- Comparison of planetary Hα-emission models: A new correlation with accretion luminosity
- Photometric determination of the mass accretion rates of pre-main sequence stars. V. Recent star formation in the 30 Dor nebula
- GIARPS High-resolution Observations of T Tauri stars (GHOsT). III. A pilot study of stellar and accretion properties
- Magnetohydrodynamic modeling of the accretion shocks in classical T Tauri stars: the role of local absorption on the X-ray emission
- Forbidden line diagnostics of photoevaporative disc winds
- Empirical determination of Einstein A-coefficient ratios of bright [Fe II] lines
- GIARPS High-resolution Observations of T Tauri stars (GHOsT). I. Jet line emission
- X-Shooter spectroscopy of young stellar objects - VI - HI line decrements
- Photometric determination of the mass accretion rates of pre-main sequence stars. VI. The case of LH 95 in the Large Magellanic Cloud
- Velocity-Resolved [Ne III] from X-Ray Irradiated Sz 102 Microjets
- Revealing Ionization Conditions of Sz 102 with Spatially Resolved [Ne III] Microjets
- Accretion onto young stars: the key to disk evolution