Protoplanetary disks in the hostile environment of Carina

Abstract

We report the first direct imaging of protoplanetary disks in the star-forming region of Carina, the most distant, massive cluster in which disks have been imaged. Using the Atacama Large Millimeter/sub-millimeter Array (ALMA), disks are observed around two young stellar objects (YSOs) that are embedded inside evaporating gaseous globules and exhibit jet activity. The disks have an average size of 120 AU and total masses of 30 and 50 M_Jup. Given the measured masses, the minimum timescale required for planet formation (~1-2 Myr) and the average age of the Carina population (~1-4 Myr), it is plausible that young planets are present or their formation is currently ongoing in these disks. The non-detection of millimeter emission above the 4sigma threshold (~7 M_Jup) in the core of the massive cluster Trumpler~14, an area containing previously identified proplyd candidates, suggest evidence for rapid photo-evaporative disk destruction in the cluster's harsh radiation field. This would prevent the formation of giant gas planets in disks located in the cores of Carina's dense sub-clusters, whereas the majority of YSO disks in the wider Carina region remain unaffected by external photo-evaporation.

arXiv comment6 pages, 2 figures. Accepted for publication in ApJ Letters

References in corpus (35)

• Embedded Clusters in Molecular Clouds
• Protoplanetary Disks and Their Evolution
• First Results from High Angular Resolution ALMA Observations Toward the HL Tau Region
• Circumstellar Dust Disks in Taurus-Auriga: The Submillimeter Perspective
• The Mass Dependence Between Protoplanetary Disks and their Stellar Hosts
• Photoevaporation of Circumstellar Disks due to External FUV Radiation in Stellar Aggregates
• A Submillimeter View of Circumstellar Dust Disks in $\rho$ Ophiuchus
• On the theory of disc photoevaporation
• Models of Jupiter's Growth Incorporating Thermal and Hydrodynamic Constraints
• The Photoevaporation of Discs Around Young Stars in Massive Clusters
• A Keck High Resolution Spectroscopic Study of the Orion Nebula Proplyds
• A Pan-Carina YSO Catalog: Intermediate-Mass Young Stellar Objects in the Carina Nebula Identified Via Mid-Infrared Excess Emission
• ALMA Observations of the Orion Proplyds
• The Mass Budget of Planet Forming Discs: Isolating the Epoch of Planetesimal Formation
• Proplyds and Massive Disks in the Orion Nebula Cluster Imaged with CARMA and SMA
• Correlation between grain growth and disk geometry in Herbig Ae/Be systems
• A Submillimeter Array Survey of Protoplanetary Disks in the Orion Nebula Cluster
• Viscous Evolution and Photoevaporation of Circumstellar Disks due to External FUV Radiation Fields
• Accretion-related properties of Herbig Ae/Be stars. Comparison with T Tauris
• Massive Protoplanetary Disks in the Trapezium Region
• Photoevaporating Proplyd-like objects in Cygnus OB2
• An ALMA Continuum Survey of Circumstellar Disks in the Upper Scorpius OB Association
• Deep wide-field near-infrared survey of the Carina Nebula
• Near-Infrared properties of the X-ray emitting young stellar objects in the Carina Nebula
• Disk Dispersal: Theoretical Understanding and Observational Constraints
• The Eagle's EGGs: fertile or sterile?
• Candidate X-ray-Emitting OB Stars in the Carina Nebula Identified Via Infrared Spectral Energy Distributions
• Disk Masses at the end of the main accretion phase: CARMA Observations and Multi-Wavelength Modeling of Class I Protostars
• No evidence for protoplanetary disk destruction by OB stars in the MYStIX sample
• HST/WFC3 Imaging of Protostellar Jets in Carina: [Fe II] Emission Tracing Massive Jets from Intermediate Mass Protostars
• A SCUBA-2 850 micron survey of protoplanetary discs in the sigma Orionis cluster
• The VISTA Carina Nebula Survey II. Spatial distribution of the infrared-excess-selected young stellar population
• Are Large, Cometary-Shaped Proplyds really (free-floating) EGGs?
• A SCUBA-2 850 micron Survey of Protoplanetary Discs in the IC 348 Cluster
• Chemical abundances in Orion protoplanetary discs: integral field spectroscopy and photoevaporation models of HST 10

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