Search Results - "Durda, Daniel D."

New Horizons Observations of the Cosmic Optical Background by Lauer, Tod R., Postman, Marc, Weaver, Harold A., Spencer, John R., Stern, S. Alan, Buie, Marc W., Durda, Daniel D., Lisse, Carey M., Poppe, A. R., Binzel, Richard P., Britt, Daniel T., Buratti, Bonnie J., Cheng, Andrew F., Grundy, W. M., Horányi, Mihaly, Kavelaars, J. J., Linscott, Ivan R., McKinnon, William B., Moore, Jeffrey M., Núñez, J. I., Olkin, Catherine B., Parker, Joel W., Porter, Simon B., Reuter, Dennis C., Robbins, Stuart J., Schenk, Paul, Showalter, Mark R., Singer, Kelsi N., Verbiscer, Anne J., Young, Leslie A.

“…Abstract We used existing data from the New Horizons Long-range Reconnaissance Imager (LORRI) to measure the optical-band (0.4 ≲  λ  ≲ 0.9 μ m) sky brightness…”
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Delivery of dark material to Vesta via carbonaceous chondritic impacts by Reddy, Vishnu, Le Corre, Lucille, O’Brien, David P., Nathues, Andreas, Cloutis, Edward A., Durda, Daniel D., Bottke, William F., Bhatt, Megha U., Nesvorny, David, Buczkowski, Debra, Scully, Jennifer E.C., Palmer, Elizabeth M., Sierks, Holger, Mann, Paul J., Becker, Kris J., Beck, Andrew W., Mittlefehldt, David, Li, Jian-Yang, Gaskell, Robert, Russell, Christopher T., Gaffey, Michael J., McSween, Harry Y., McCord, Thomas B., Combe, Jean-Philippe, Blewett, David

“…► Dark material on Vesta observed by Dawn is remnant carbonaceous chondrite impactor. ► Global abundance of carbonaceous chondrite material <6vol.% similar to…”
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Momentum transfer in hypervelocity cratering of meteorites and meteorite analogs: Implications for orbital evolution and kinetic impact deflection of asteroids by Flynn, George J., Durda, Daniel D., Molesky, Mason J., May, Brian A., Congram, Spenser N., Loftus, Colleen L., Reagan, Jacob R., Strait, Melissa M., Macke, Robert J.

“…•Ejecta from hypervelocity impact cratering results in significant momentum transfer, equaling or exceeding the direct momentum transfer from the…”
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A comparison between rubble-pile and monolithic targets in impact simulations: Application to asteroid satellites and family size distributions by Benavidez, Paula G., Durda, Daniel D., Enke, Brian L., Bottke, William F., Nesvorný, David, Richardson, Derek C., Asphaug, Erik, Merline, William J.

“…► We compare impact simulations of rubble-pile and monolithic targets. ► Size–frequency distributions (SFDs) for each type display different features. ► The…”
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Hypervelocity cratering and disruption of porous pumice targets: Implications for crater production, catastrophic disruption, and momentum transfer on porous asteroids by Flynn, George J., Durda, Daniel D., Patmore, Emma B., Clayton, Angela N., Jack, Sarah J., Lipman, Miriam D., Strait, Melissa M.

“…Most asteroids for which porosities have been inferred have porosities from 20% to>50%. To investigate the effects of target porosity on cratering, impact…”
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The shapes of fragments from catastrophic disruption events: Effects of target shape and impact speed by Durda, Daniel D., Campo Bagatin, Adriano, Alemañ, Rafael A., Flynn, George J., Strait, Melissa M., Clayton, Angela N., Patmore, Emma B.

“…We conducted impact experiments at the NASA Ames Vertical Gun Range in the context of an ongoing set of experiments to investigate both target shape and impact…”
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Experimental determination of the coefficient of restitution for meter-scale granite spheres by Durda, Daniel D., Movshovitz, Naor, Richardson, Derek C., Asphaug, Erik, Morgan, Alex, Rawlings, Alan R., Vest, Chris

“…We present results of a series of large-scale experiments to measure the coefficient of restitution for 1-m-diameter rocky bodies in impacts with collision…”
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Trajectories and distribution of material ejected from the Chicxulub impact crater: Implications for postimpact wildfires by Kring, David A., Durda, Daniel D.

“…The trajectories of low‐ and high‐energy ejecta from the Chicxulub impact crater have been computed using a numerical code and compared with analyses of debris…”
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Experimental investigation of the impact fragmentation of blocks embedded in regolith by DURDA, Daniel D., CHAPMAN, Clark R., CINTALA, Mark J., FLYNN, George J., STRAIT, Melissa M., MINNICK, Anderson

“…– We present results of a set of impact experiments designed to examine the effects of impacts onto rocky blocks resting on and embedded within regoliths. The…”
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Ignition threshold for impact-generated fires by Durda, Daniel D., Kring, David A.

“…Widespread fires can be generated after large impact events by atmospheric heating caused by the reaccretion of high‐energy, vapor‐rich plume material. We…”
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Momentum enhancement simulations for hypervelocity impacts on sandstone by Chocron, Sidney, Walker, James D., Grosch, Donald J., Beissel, Stephen R., Durda, Daniel D., Housen, Kevin R.

“…•Generated material constants from test and literature data that capture the proper physics (pressure dependence, strain rate, strength of failed material,…”
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The fossilized size distribution of the main asteroid belt by Bottke, William F., Durda, Daniel D., Nesvorný, David, Jedicke, Robert, Morbidelli, Alessandro, Vokrouhlický, David, Levison, Hal

“…Planet formation models suggest the primordial main belt experienced a short but intense period of collisional evolution shortly after the formation of…”
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Linking the collisional history of the main asteroid belt to its dynamical excitation and depletion by Bottke, William F., Durda, Daniel D., Nesvorný, David, Jedicke, Robert, Morbidelli, Alessandro, Vokrouhlický, David, Levison, Harold F.

“…The main belt is believed to have originally contained an Earth mass or more of material, enough to allow the asteroids to accrete on relatively short…”
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Size–frequency distributions of fragments from SPH/N-body simulations of asteroid impacts: Comparison with observed asteroid families by Durda, Daniel D., Bottke, William F., Nesvorný, David, Enke, Brian L., Merline, William J., Asphaug, Erik, Richardson, Derek C.

“…We investigate the morphology of size–frequency distributions (SFDs) resulting from impacts into 100-km-diameter parent asteroids, represented by a suite of…”
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Hypervelocity cratering and disruption of the Northwest Africa 869 ordinary chondrite meteorite: Implications for crater production, catastrophic disruption, momentum transfer and dust production on asteroids by Flynn, George J., Durda, Daniel D., Patmore, Emma B., Jack, Sarah J., Molesky, Mason J., May, Brian A., Congram, Spenser N., Strait, Melissa M., Macke, Robert J.

“…Most asteroids for which porosities have been inferred have porosities from 20% to more than 50%, comparable to the range measured on chondritic meteorites. To…”
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A New Facility for Airborne Solar Astronomy: NASA's WB-57 at the 2017 Total Solar Eclipse by Caspi, Amir, Seaton, Daniel B., Tsang, Constantine C. C., DeForest, Craig E., Bryans, Paul, DeLuca, Edward E., Tomczyk, Steven, Burkepile, Joan T., Casey, Thomas "Tony", Collier, John, Darrow, Donald "DD", Del Rosso, Dominic, Durda, Daniel D., Gallagher, Peter T., Golub, Leon, Jacyna, Matthew, Johnson, David "DJ", Judge, Philip G., Klemm, Cary "Diddle", Laurent, Glenn T., Lewis, Johanna, Mallini, Charles J., Parent, Thomas "Duster", Propp, Timothy, Steffl, Andrew J., Warner, Jeff, West, Matthew J., Wiseman, John, Yates, Mallory, Zhukov, Andrei N.

“…NASA's WB-57 High Altitude Research Program provides a deployable, mobile, and stratospheric platform for scientific research. Airborne platforms are of…”
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Detecting crater ejecta-blanket boundaries and constraining source crater regions for boulder tracks and elongated secondary craters on Eros by DURDA, Daniel D., CHAPMAN, Clark R., MERLINE, William J., ENKE, Brian L.

“…– We present results of a numerical model of the dynamics of ejecta emplacement on asteroid 433 Eros. Ejecta blocks represent the coarsest fraction of Eros’…”
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Karin cluster formation by asteroid impact by Nesvorný, David, Enke, Brian L., Bottke, William F., Durda, Daniel D., Asphaug, Erik, Richardson, Derek C.

“…Insights into collisional physics may be obtained by studying the asteroid belt, where large-scale collisions produced groups of asteroid fragments with…”
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The formation of asteroid satellites in large impacts: results from numerical simulations by Durda, Daniel D., Bottke, William F., Enke, Brian L., Merline, William J., Asphaug, Erik, Richardson, Derek C., Leinhardt, Zoë M.

“…We present results of 161 numerical simulations of impacts into 100-km diameter asteroids, examining debris trajectories to search for the formation of bound…”
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Collisional Models and Scaling Laws: A New Interpretation of the Shape of the Main-Belt Asteroid Size Distribution by Durda, Daniel D., Greenberg, Richard, Jedicke, Robert

“…Numerical models of the collisional evolution of the main-belt asteroids lead to a new interpretation of the shape of the observed size distribution. Using…”
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