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NEWBORN BINARIES
Project Investigators: Bo Reipurth, Michael Connelley, John Bally
Other Project Members
Marcelo Guimaraes (Doctoral Student)Summary
Young binaries have orbital properties that still reflect their birth
conditions. We have studied such binaries in two cases: deeply
embedded newborn binaries still embedded in their nascent clouds and
young binaries in the Orion Nebula Cluster.Astrobiology Roadmap Objectives:
Project Progress
I have for 20 years pursued the study of young binaries, and during the past few years I have worked with my graduate student Michael Connelley (now postdoc at NASA/Ames) to push this study to ever younger targets. We have over the past year published several major papers on the youngest binaries ever studied, and have demonstrated that such binaries have properties that reflect their birth conditions and are different from older binaries. In another large study, we have examined the distribution of binary separations in the Orion Nebula Cluster using the Hubble Space Telescope, demonstrating that the closer to the center of the cluster, the closer are the binary components to each other, because binaries with wider separations have been disrupted by passage through the dense cluster center. This is a result predicted by numerical models, and now for the first time demonstrated empirically.
Cross-Team Collaborations
John Bally is member of the Colorado NAI
Publications
Bally, J., Reipurth, B. & Davis, C.J. (2007). Observations of Jets and Outflows from Young Stars. In: B. Reipurth, D. Jewitt & K. Keil (Eds.). Review for Protostars and Planets V (pp. 215-230).
Connelley, M.S., Reipurth, B. & Tokunaga, A.T. (2008). The evolution of the multiplicity of embedded protostars. I. Sample properties and binary detections. Astronomical Journal, 135(6):2496-2525 [Online].
Connelley, M.S., Reipurth, B. & Tokunaga, A.T. (2008). The evolution of the multiplicity of embedded protostars. II. Binary separation distribution and analysis. Astronomical Journal, 135(6):2526-2536 [Online].
Reipurth, B., Guimaraes, M.M., Connelley, M.S. & Bally, J. (2007). Visual binaries in the Orion Nebula Cluster. Astronomical Journal, 134(6):2272-2285 [Online].
Walawender, J., Reipurth, B. & Bally, J. (). Multiple Outflows and Protostars in Barnard 1. II Deep Optical and Near Infrared Images. Astronomical Journal, In press.
Whitworth, A., Bate, M.R., Nordlund, A., Reipurth, B. & Zinnecker, H. (2007). The Formation of Brown Dwarfs: Theory. In: B. Reipurth, D. Jewitt & K. Keil (Eds.). Review for Protostars and Planets (pp. 459-476).
- HANDBOOK OF STAR FORMING REGIONS
- A Rare low mass quadruple spectroscopic AND eclipsing binary
- A search for Main Belt Comets in Pan-STARRS 1
- A search for primordial water from deep in the Earth's mantle
- A spectroscopically unique Main Belt asteroid: 10537 (1991 RY16)
- A Supertree Analysis of the Metazoan Phylogeny
- Acquisition and Installation of a new Cameca ims 1280 ion microprobe
- Acquisition and Installation of Witec Confocal Raman microscope scanning system
- Amorphization of Crystalline Water Ice in the Solar System
- Assessing the likelihood of supernova impact of protoplanetary disks
- Carbonate Lithologies on Devon Island, Canada
- Chemistry and biology of ultramafic-hosted alkaline springs
- Chemistry of the NH3/H2O system
- DIVERSITY AND BIOGEOGRAPHY OF THE UNIQUE TROPICAL PHYLUM PLACOZOA
- Dynamical Evolution of Astroid Belt and the Parent Bodies of Iron Meteorites
- Ecology of a Hawaiian lava cave microbial mat
- FMARS Long Duration Mission: a simulation of manned Mars exploration in an analogue environment, Devon Island, Canada
- Formation and Detection of Hot-Earth Objects in Systems with Close-in Jupiters
- Formation and the Prospects of the Detection of Habitable Planets in Extreme Planetary Systems
- Formation of Molecular Hydrogen via Interaction of Ionizing Radiation with Hydrocarbon Ices in the Interstellar Medium
- Formation of Planetesimals in a Dynamically Evolving Nebula
- FU ORIONIS ERUPTIONS
- Ice Ages on Mars
- Ice at the Mars Phoenix Landing Site
- Ice on Main Belt Comets
- Icelandic subglacial lakes
- Mechanisms of Marine Microbial Community Structuring
- Mechanistical Studies on the Non-Equilibrium Chemistry of Unusual Carbon Oxide in Solar System Ices
- Modeling grain surface reaction pathways for large organic molecules
- Molecular Deuteration on grain surfaces
- NEWBORN BINARIES
- Observations and Models of comet 17P/Holmes
- Origin and Activation Mechanism of Main Belt Comets
- Origin of Irregular Satellites
- Recovery of comet 85P/Boethin for the Deep Impact Extended Mission
- Sediment-buried basement deep biosphere
- Serpentinazation and abiogenic methane in the Mariana Forearc
- Sleeping through the Arctic Martian Sol
- Spectropolarimetric studies of stars with hot jupiters
- TES study of intracrater low albedo deposits, Amazonis Planitia, Mars
- The delivery of short-lived radionucleides to the solar system
- The effect of lunar-like satellites on the orbital infrared lightcurves of Earth-analog planets
- The Main Belt distribution of basaltic asteroids
- The Size Distribution of Small KBOs
- THE VYSOS PROJECT
- Ultra-violet processing of ices in the Rosette Nebula
- Unveiling the evolution and interplay of ice and gas in quiescent clouds
- Variable Young Stellar Objects Survey (VYSOS)
- Water on Mars
- X-ray- and UV-bright low-mass stars in the solar neighborhood