Search Results - "Blake, Geoffrey A."

Two-dimensional infrared-Raman spectroscopy as a probe of water’s tetrahedrality by Begušić, Tomislav, Blake, Geoffrey A.

“…Two-dimensional spectroscopic techniques combining terahertz (THz), infrared (IR), and visible pulses offer a wealth of information about coupling among…”
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Breaking Degeneracies in Formation Histories by Measuring Refractory Content in Gas Giants by Chachan, Yayaati, Knutson, Heather A., Lothringer, Joshua, Blake, Geoffrey A.

“…Abstract Relating planet formation to atmospheric composition has been a long-standing goal of the planetary science community. So far, most modeling studies…”
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Tracing the ingredients for a habitable earth from interstellar space through planet formation by Bergin, Edwin A, Geoffrey A. Blake, Fred Ciesla, Marc M. Hirschmann, Jie Li

“…We use the C/N ratio as a monitor of the delivery of key ingredients of life to nascent terrestrial worlds. Total elemental C and N contents, and their ratio,…”
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Discovery of the interstellar chiral molecule propylene oxide (CH₃CHCH₂O) by McGuire, Brett A., Carroll, P. Brandon, Loomis, Ryan A., Finneran, Ian A., Jewell, Philip R., Remijan, Anthony J., Blake, Geoffrey A.

“…Life on Earth relies on chiral molecules—that is, species not superimposable on their mirror images. This manifests itself in the selection of a single…”
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Unlocking CO Depletion in Protoplanetary Disks. I. The Warm Molecular Layer by Schwarz, Kamber R., Bergin, Edwin A., Cleeves, L. Ilsedore, Zhang, Ke, Öberg, Karin I., Blake, Geoffrey A., Anderson, Dana

“…CO is commonly used as a tracer of the total gas mass in both the interstellar medium and in protoplanetary disks. Recently, there has been much debate about…”
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The Structure and Dynamics of Molecular Gas in Planet-forming Zones: A CRIRES Spectro-astrometric Survey by Pontoppidan, Klaus M, Blake, Geoffrey A, Smette, Alain

“…We present a spectro-astrometric survey of molecular gas in the inner regions of 16 protoplanetary disks using CRIRES, the high-resolution infrared imaging…”
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Imaging of the CO Snow Line in a Solar Nebula Analog by Qi, Chunhua, Öberg, Karin I., Wilner, David J., D'Alessio, Paola, Bergin, Edwin, Andrews, Sean M., Blake, Geoffrey A., Hogerheijde, Michiel R., van Dishoeck, Ewine F.

“…Planets form in the disks around young stars. Their formation efficiency and composition are intimately linked to the protoplanetary disk locations of "snow…”
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The TW Hya Rosetta Stone Project. III. Resolving the Gaseous Thermal Profile of the Disk by Calahan, Jenny K., Bergin, Edwin, Zhang, Ke, Teague, Richard, Cleeves, Ilsedore, Bergner, Jennifer, Blake, Geoffrey A., Cazzoletti, Paolo, Guzmán, Viviana, R. Hogerheijde, Michiel, Huang, Jane, Kama, Mihkel, Loomis, Ryan, Öberg, Karin, Qi, Charlie, van Dishoeck, Ewine F., van Scheltinga, Jeroen Terwisscha, Walsh, Catherine, Wilner, David

“…Abstract The thermal structure of protoplanetary disks is a fundamental characteristic of the system that has wide-reaching effects on disk evolution and…”
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The Evolution of Disk Winds from a Combined Study of Optical and Infrared Forbidden Lines by Pascucci, Ilaria, Banzatti, Andrea, Gorti, Uma, Fang, Min, Pontoppidan, Klaus, Alexander, Richard, Ballabio, Giulia, Edwards, Suzan, Salyk, Colette, Sacco, Germano, Flaccomio, Ettore, Blake, Geoffrey A., Carmona, Andres, Hall, Cassandra, Kamp, Inga, Käufl, Hans Ulrich, Meeus, Gwendolyn, Meyer, Michael, Pauly, Tyler, Steendam, Simon, Sterzik, Michael

“…We analyze high-resolution (Δv ≤ 10 km s−1) optical and infrared spectra covering the [O i] λ6300 and [Ne ii] 12.81 m lines from a sample of 31 disks in…”
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Coherent two-dimensional terahertz-terahertz-Raman spectroscopy by Finneran, Ian A., Welsch, Ralph, Allodi, Marco A., Miller, Thomas F., Blake, Geoffrey A.

“…We present 2D terahertz-terahertz-Raman (2D TTR) spectroscopy, the first technique, to our knowledge, to interrogate a liquid with multiple pulses of terahertz…”
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Destruction of Refractory Carbon in Protoplanetary Disks by Anderson, Dana E., Bergin, Edwin A., Blake, Geoffrey A., Ciesla, Fred J., Visser, Ruud, Lee, Jeong-Eun

“…The Earth and other rocky bodies in the inner solar system contain significantly less carbon than the primordial materials that seeded their formation. These…”
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Ocean-like water in the Jupiter-family comet 103P/Hartley 2 by Hartogh, Paul, Lis, Dariusz C., Bockelée-Morvan, Dominique, de Val-Borro, Miguel, Biver, Nicolas, Küppers, Michael, Emprechtinger, Martin, Bergin, Edwin A., Crovisier, Jacques, Rengel, Miriam, Moreno, Raphael, Szutowicz, Slawomira, Blake, Geoffrey A.

“…A drop in the ocean Earth's bulk composition is similar to that of a group of oxygen-poor meteorites called enstatite chondrites, thought to have formed in the…”
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Unlocking CO Depletion in Protoplanetary Disks. II. Primordial C/H Predictions inside the CO Snowline by Schwarz, Kamber R., Bergin, Edwin A., Cleeves, L. Ilsedore, Zhang, Ke, Öberg, Karin I., Blake, Geoffrey A., Anderson, Dana E.

“…CO is thought to be the main reservoir of volatile carbon in protoplanetary disks, and thus the primary initial source of carbon in the atmospheres of forming…”
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An Evolutionary Study of Volatile Chemistry in Protoplanetary Disks by Bergner, Jennifer B., Öberg, Karin I., Bergin, Edwin A., Andrews, Sean M., Blake, Geoffrey A., Carpenter, John M., Cleeves, L. Ilsedore, Guzmán, Viviana V., Huang, Jane, Jørgensen, Jes K., Qi, Chunhua, Schwarz, Kamber R., Williams, Jonathan P., Wilner, David J.

“…The volatile composition of a planet is determined by the inventory of gas and ice in the parent disk. The volatile chemistry in the disk is expected to evolve…”
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MEASUREMENTS OF WATER SURFACE SNOW LINES IN CLASSICAL PROTOPLANETARY DISKS by Blevins, Sandra M., Pontoppidan, Klaus M., Banzatti, Andrea, Zhang, Ke, Najita, Joan R., Carr, John S., Salyk, Colette, Blake, Geoffrey A.

“…ABSTRACT We present deep Herschel-PACS spectroscopy of far-infrared water lines from a sample of four protoplanetary disks around solar-mass stars, selected to…”
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A High-resolution Mid-infrared Survey of Water Emission from Protoplanetary Disks by Salyk, Colette, Lacy, John, Richter, Matt, Zhang, Ke, Pontoppidan, Klaus, Carr, John S., Najita, Joan R., Blake, Geoffrey A.

“…We present the largest survey of spectrally resolved mid-infrared water emission to date, with spectra for 11 disks obtained with the Michelle and TEXES…”
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The Nitrogen Carrier in Inner Protoplanetary Disks by Pontoppidan, Klaus M., Salyk, Colette, Banzatti, Andrea, Blake, Geoffrey A., Walsh, Catherine, Lacy, John H., Richter, Matthew J.

“…The dominant reservoirs of elemental nitrogen in protoplanetary disks have not yet been observationally identified. Likely candidates are HCN, NH3, and N2. The…”
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Molecular Gas Tracers in Young and Old Protoplanetary Disks by Anderson, Dana E., Cleeves, L. Ilsedore, Blake, Geoffrey A., Qi, Chunhua, Bergin, Edwin A., Carpenter, John M., Schwarz, Kamber R., Thilenius, Claire, Zhang, Ke

“…Abstract Molecular emission is used to investigate both the physical and chemical properties of protoplanetary disks. Therefore, to derive disk properties…”
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Detection of the Water Reservoir in a Forming Planetary System by Hogerheijde, Michiel R., Bergin, Edwin A., Brinch, Christian, Cleeves, L. Ilsedore, Fogel, Jeffrey K. J., Blake, Geoffrey A., Dominik, Carsten, Lis, Dariusz C., Melnick, Gary, Neufeld, David, Panić, Olja, Pearson, John C., Kristensen, Lars, Yildiz, Umut A., van Dishoeck, Ewine F.

“…Icy bodies may have delivered the oceans to the early Earth, yet little is known about water in the ice-dominated regions of extrasolar planet-forming disks…”
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An ALMA Survey of H2CO in Protoplanetary Disks by Pegues, Jamila, Öberg, Karin I., Bergner, Jennifer B., Loomis, Ryan A., Qi, Chunhua, Gal, Romane Le, Cleeves, L. Ilsedore, Guzmán, Viviana V., Huang, Jane, Jørgensen, Jes K., Andrews, Sean M., Blake, Geoffrey A., Carpenter, John M., Schwarz, Kamber R., Williams, Jonathan P., Wilner, David J.

“…H2CO is one of the most abundant organic molecules in protoplanetary disks and can serve as a precursor to more complex organic chemistry. We present an…”
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