The Spitzer c2d Survey of Nearby Dense Cores: IV. Revealing the Embedded Cluster in B59

Abstract

Infrared images of the dark cloud core B59 were obtained with the Spitzer Space Telescope as part of the "Cores to Disks" Legacy Science project. Photometry from 3.6-70 microns indicates at least 20 candidate low-mass young stars near the core, more than doubling the previously known population. Out of this group, 13 are located within about 0.1 pc in projection of the molecular gas peak, where a new embedded source is detected. Spectral energy distributions span the range from small excesses above photospheric levels to rising in the mid-infrared. One other embedded object, probably associated with the millimeter source B59-MMS1, with a bolometric luminosity L(bol) roughly 2 L(sun), has extended structure at 3.6 and 4.5 microns, possibly tracing the edges of an outflow cavity. The measured extinction through the central part of the core is A(V) greater than of order 45 mag. The B59 core is producing young stars with a high efficiency.

References in corpus (2)

• 2MASS wide field extinction maps - I. The Pipe nebula
• An infrared study of galactic OH/IR stars. I. An optical/near-IR atlas of the Arecibo sample

Cited by in corpus (28)

• Filamentary structure of star-forming complexes
• The Nature of the Dense Core Population in the Pipe Nebula: Thermal Cores Under Pressure
• On the Rapid Collapse and Evolution of Molecular Clouds
• Optical polarimetry toward the Pipe nebula: Revealing the importance of the magnetic field
• Gas flow and accretion via spiral streamers and circumstellar disks in a young binary protostar
• Observations of Infalling and Rotational Motions on a 1,000-AU Scale around 17 Class 0 and 0/I Protostars: Hints of Disk Growth and Magnetic Braking?
• A case of simultaneous star and planet formation
• The nature of the dense core population in the Pipe Nebula: A survey of NH3, CCS, and HC5N molecular line emission
• Molecular outflow launched beyond the disk edge
• Significance Mode Analysis (SigMA) for hierarchical structures. An application to the Sco-Cen OB association
• The nature of the dense core population in the pipe nebula: core and cloud kinematics from C18O observations
• On the Evolution of the Dense Core Mass Function
• Deep Near-Infrared Survey of the Pipe Nebula II: Data, Methods, and Dust Extinction Maps
• Molecular line profiles as diagnostics of protostellar collapse: modelling the `blue asymmetry' in inside-out infall
• Observations of the Onset of Complex Organic Molecule Formation in Interstellar Ices
• Polarized emission by aligned grains in the Mie regime : application to protoplanetary disks observed by ALMA
• Hot methanol in the [BHB2007] 11 protobinary system: hot corino versus shock origin? : FAUST V
• Simultaneous evolution of the virial parameter and star formation rate in molecular clumps undergoing global hierarchical collapse
• 2MASS J17112318-2724315: A Deeply-Embedded Low-Mass Protostellar System in the B59 Molecular Cloud
• Not so different after all: Properties and Spatial Structure of Column Density Peaks in the Pipe and Orion A Clouds
• AST/RO 13CO(J=2-1) and 12CO(J=4-3) Mapping of Southern Spitzer c2d Small Clouds and Cores
• The Green Bank Ammonia Survey: Unveiling the Dynamics of the Barnard 59 star-forming Clump
• FAUST X: Formaldehyde in the Protobinary System [BHB2007] 11: Small Scale Deuteration
• Near-IR observations of the young star [BHB2007]-1: A sub-stellar companion opening the gap in the disk
• Constraining Spatial Densities of Early Ice Formation in Small Dense Molecular Cores from Extinction Maps
• FAUST XXV. A potential new molecular outflow in [BHB2007] 11
• Unveiling the role of magnetic fields in an accreting filament onto a young protocluster
• FORCAST imaging of two small nearby Clusters: The Coronet and B59