Search Results - "GAINSFORTH, Zack"

Chondrules from high-velocity collisions: thermal histories and the agglomeration problem by Choksi, Nick, Chiang, Eugene, Connolly, Harold C, Gainsforth, Zack, Westphal, Andrew J

“…ABSTRACT We assess whether chondrules, once-molten mm-sized spheres filling the oldest meteorites, could have formed from super-km s−1 collisions between…”
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Oxygen isotopic composition of coarse- and fine-grained material from comet 81P/Wild 2 by Ogliore, Ryan C., Nagashima, Kazuhide, Huss, Gary R., Westphal, Andrew J., Gainsforth, Zack, Butterworth, Anna L.

“…Individual particles from comet 81P/Wild 2 collected by NASA’s Stardust mission vary in size from small sub-μm fragments found in the walls of the aerogel…”
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Characterization of preserved primitive fine-grained material from the Jupiter family comet 81P/Wild 2 – A new link between comets and CP-IDPs by Stodolna, Julien, Gainsforth, Zack, Butterworth, Anna L., Westphal, Andrew J.

“…We report the presence of preserved primitive fine-grained material containing an enstatite whisker with the crystallographic characteristics of a primary…”
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Comprehensive examination of large mineral and rock fragments in Stardust tracks: Mineralogy, analogous extraterrestrial materials, and source regions by JOSWIAK, David J., BROWNLEE, Donald E., MATRAJT, Graciela, WESTPHAL, Andrew J., SNEAD, Christopher J., GAINSFORTH, Zack

“…– Transmission electron microscopy examination of 87 large fragments from 16 carrot‐shaped and bulbous Stardust (SD) tracks was performed to study the range…”
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Constraints on the formation environment of two chondrule-like igneous particles from comet 81P/Wild 2 by Gainsforth, Zack, Butterworth, Anna L., Stodolna, Julien, Westphal, Andrew J., Huss, Gary R., Nagashima, Kazu, Ogliore, Ryan, Brownlee, Donald E., Joswiak, David, Tyliszczak, Tolek, Simionovici, Alexandre S.

“…Using chemical and petrologic evidence and modeling, we deduce that two chondrule‐like particles named Iris and Callie, from Stardust cometary track…”
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Iron valence state of fine-grained material from the Jupiter family comet 81P/Wild 2 – A coordinated TEM/STEM EDS/STXM study by Stodolna, Julien, Gainsforth, Zack, Leroux, Hugues, Butterworth, Anna L., Tyliszczak, Tolek, Jacob, Damien, Westphal, Andrew J.

“…The oxidation state of transition metal elements is an indicator of the environmental conditions during formation and history of extraterrestrial materials. We…”
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Discovery of non-random spatial distribution of impacts in the Stardust cometary collector by Westphal, Andrew J., Bastien, Ronald K., Borg, Janet, Bridges, John, Brownlee, Donald E., Burchell, Mark J., Cheng, Andrew F., Clark, Benton C., Djouadi, Zahia, Floss, Christine, Franchi, Ian, Gainsforth, Zack, Graham, Giles, Green, Simon F., Heck, Philipp R., HorÁNYI, Mihaly, Hoppe, Peter, Hörz, Friedrich P., Huth, Joachim, Kearsley, Anton, Leroux, Hugues, Marhas, Kuljeet, Nakamura-Messenger, Keiko, Sandford, Scott A., See, Thomas H., Stadermann, Frank J., Teslich, Nick E., Tsitrin, Samuel, Warren, Jack L., Wozniakiewicz, Penelope J., Zolensky, Michael E.

“…— We report the discovery that impacts in the Stardust cometary collector are not distributed randomly in the collecting media, but appear to be clustered on…”
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Measurement of the Oxidation State of Fe in the ISM Using X-Ray Absorption Spectroscopy by Westphal, Andrew J., Butterworth, Anna L., Tomsick, John A., Gainsforth, Zack

“…The relative fractions of Fe in metal, sulfide, or oxide-the Fe oxidation state-in the interstellar medium (ISM) can provide constraints on the processes that…”
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The Emerging Layered Hydroxide Plates with Record Thickness for Enhanced High‐Mass‐Loading Energy Storage by Guo, Wei, Dun, Chaochao, Marcus, Matthew A., Venturi, Victor, Gainsforth, Zack, Yang, Feipeng, Feng, Xuefei, Viswanathan, Venkatasubramanian, Urban, Jeffrey J., Yu, Chang, Zhang, Qiuyu, Guo, Jinghua, Qiu, Jieshan

“…The past decade has witnessed the development of layered‐hydroxide‐based self‐supporting electrodes, but the low active mass ratio impedes its all‐around…”
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Comet 81P/Wild 2 dust impactors of Stardust turnip-like tracks analogous to cluster IDPs by Zhang, Mingming, Chaumard, Noël, Defouilloy, Céline, Nachlas, William O., Brownlee, Donald E., Joswiak, David J., Westphal, Andrew J., Gainsforth, Zack, Kitajima, Kouki, Kita, Noriko T.

“…We measured oxygen isotope ratios of 16 silicate fragments from seven aerogel tracks (turnip-like type B tracks 77, 149, 172, 191, and 220; carrot-like type A…”
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Nanoscale infrared spectroscopy as a non-destructive probe of extraterrestrial samples by Dominguez, Gerardo, Mcleod, A. S., Gainsforth, Zack, Kelly, P., Bechtel, Hans A., Keilmann, Fritz, Westphal, Andrew, Thiemens, Mark, Basov, D. N.

“…Advances in the spatial resolution of modern analytical techniques have tremendously augmented the scientific insight gained from the analysis of natural…”
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Coevolution of phyllosilicate, carbon, sulfide, and apatite in Ryugu's parent body by Gainsforth, Zack, Dominguez, Gerardo, Amano, Kana, Matsumoto, Megumi, Fujioka, Yuri, Kagawa, Eiichi, Nakamura, Tomoki, Tachibana, Shogo, Morita, Tomoyo, Kikuiri, Mizuha, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masano, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei‐ichiro, Tsuda, Yuichi

“…We analyzed an asteroid Ryugu sample returned to Earth by JAXA's Hayabusa2 mission using nanoIR, SEM, and TEM microscopy. We identified multiple distinct…”
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Q-gases in a late-forming refractory interplanetary dust particle: A link to comet Wild 2 by Ogliore, Ryan C., Palma, Russell L., Stodolna, Julien, Nagashima, Kazuhide, Pepin, Robert O., Schlutter, D.J., Gainsforth, Zack, Westphal, Andrew J., Huss, Gary R.

“…We report the structure, chemical composition, O, Al-Mg, He, and Ne isotope systematics of an interplanetary dust particle, “Manchanito”. These analyses…”
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Automatic detection of impact craters on Al foils from the Stardust interstellar dust collector using convolutional neural networks by Jaeger, Logan, Butterworth, Anna L., Gainsforth, Zack, Lettieri, Robert, Zevin, Dan, Ardizzone, Augusto, Capraro, Michael, Burchell, Mark, Wozniakiewicz, Penny, Ogliore, Ryan C., De Gregorio, Bradley T., Stroud, Rhonda M., Westphal, Andrew J.

“…Abstract NASA's Stardust mission utilized a sample collector composed of aerogel and aluminum foil to return cometary and interstellar particles to Earth…”
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Automatic detection of impact craters on Al foils from the Stardust interstellar dust collector using convolutional neural networks by Jaeger, Logan, Butterworth, Anna L., Gainsforth, Zack, Lettieri, Robert, Zevin, Dan, Ardizzone, Augusto, Capraro, Michael, Burchell, Mark, Wozniakiewicz, Penny, Ogliore, Ryan C., De Gregorio, Bradley T., Stroud, Rhonda M., Westphal, Andrew J., Brownlee, Donald

“…NASA's Stardust mission utilized a sample collector composed of aerogel and aluminum foil to return cometary and interstellar particles to Earth. Analysis of…”
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Stardust Interstellar Preliminary Examination IV: Scanning transmission X-ray microscopy analyses of impact features in the Stardust Interstellar Dust Collector by Butterworth, Anna L., Westphal, Andrew J., Tyliszczak, Tolek, Gainsforth, Zack, Stodolna, Julien, Frank, David R., Allen, Carlton, Anderson, David, Ansari, Asna, Bajt, Saša, Bastien, Ron K., Bassim, Nabil, Bechtel, Hans A., Borg, Janet, Brenker, Frank E., Bridges, John, Brownlee, Donald E., Burchell, Mark, Burghammer, Manfred, Changela, Hitesh, Cloetens, Peter, Davis, Andrew M., Doll, Ryan, Floss, Christine, Flynn, George, Grün, Eberhard, Heck, Philipp R., Hillier, Jon K., Hoppe, Peter, Hudson, Bruce, Huth, Joachim, Hvide, Brit, Kearsley, Anton, King, Ashley J., Lai, Barry, Leitner, Jan, Lemelle, Laurence, Leroux, Hugues, Leonard, Ariel, Lettieri, Robert, Marchant, William, Nittler, Larry R., Ogliore, Ryan, Ong, Wei Ja, Postberg, Frank, Price, Mark C., Sandford, Scott A., Sans͂ Tresseras, Juan-Angel, Schmitz, Sylvia, Schoonjans, Tom, Silversmit, Geert, Simionovici, Alexandre S., Solé, Vicente A., Srama, Ralf, Stadermann, Frank J., Stephan, Thomas, Sterken, Veerle J., Stroud, Rhonda M., Sutton, Steven, Trieloff, Mario, Tsou, Peter, Tsuchiyama, Akira, Vekemans, Bart, Vincze, Laszlo, Von Korff, Joshua, Wordsworth, Naomi, Zevin, Daniel, Zolensky, Michael E.

“…We report the quantitative characterization by synchrotron soft X‐ray spectroscopy of 31 potential impact features in the aerogel capture medium of the…”
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Comparison of the oxidation state of Fe in comet 81P/Wild 2 and chondritic-porous interplanetary dust particles by Ogliore, R.C., Butterworth, A.L., Fakra, S.C., Gainsforth, Z., Marcus, M.A., Westphal, A.J.

“…The fragile structure of chondritic-porous interplanetary dust particles (CP-IDPs) and their minimal parent-body alteration have led researchers to believe…”
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Stardust Interstellar Preliminary Examination V: XRF analyses of interstellar dust candidates at ESRF ID13 by Brenker, Frank E., Westphal, Andrew J., Vincze, Laszlo, Burghammer, Manfred, Schmitz, Sylvia, Schoonjans, Tom, Silversmit, Geert, Vekemans, Bart, Allen, Carlton, Anderson, David, Ansari, Asna, Bajt, Saša, Bastien, Ron K., Bassim, Nabil, Bechtel, Hans A., Borg, Janet, Bridges, John, Brownlee, Donald E., Burchell, Mark, Butterworth, Anna L., Changela, Hitesh, Cloetens, Peter, Davis, Andrew M., Doll, Ryan, Floss, Christine, Flynn, George, Fougeray, Patrick, Frank, David R., Gainsforth, Zack, Grün, Eberhard, Heck, Philipp R., Hillier, Jon K., Hoppe, Peter, Hudson, Bruce, Huth, Joachim, Hvide, Brit, Kearsley, Anton, King, Ashley J., Lai, Barry, Leitner, Jan, Lemelle, Laurence, Leroux, Hugues, Leonard, Ariel, Lettieri, Robert, Marchant, William, Nittler, Larry R., Ogliore, Ryan, Ong, Wei Ja, Postberg, Frank, Price, Mark C., Sandford, Scott A., Tresseras, Juan-Angel Sans, Simionovici, Alexandre S., Solé, Vicente A., Srama, Ralf, Stadermann, Frank, Stephan, Thomas, Sterken, Veerle J., Stodolna, Julien, Stroud, Rhonda M., Sutton, Steven, Trieloff, Mario, Tsou, Peter, Tsuchiyama, Akira, Tyliszczak, Tolek, Von Korff, Joshua, Wordsworth, Naomi, Zevin, Daniel, Zolensky, Michael E.

“…Here, we report analyses by synchrotron X‐ray fluorescence microscopy of the elemental composition of eight candidate impact features extracted from the…”
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Surface modifications of comet-exposed aerogel from the Stardust cometary collector by BECHTEL, Hans A., GAINSFORTH, Zack, OGLIORE, Ryan C., BAJT, Saša, WESTPHAL, Andrew J.

“…– Keystones removed from the Stardust cometary collector show varying degrees of visible fluorescence when exposed to UV light, with the brightest fluorescence…”
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Stardust Interstellar Preliminary Examination V: XRF analyses of interstellar dust candidates at ESRF ID 13 by Brenker, Frank E., Westphal, Andrew J., Vincze, Laszlo, Burghammer, Manfred, Schmitz, Sylvia, Schoonjans, Tom, Silversmit, Geert, Vekemans, Bart, Allen, Carlton, Anderson, David, Ansari, Asna, Bajt, Saša, Bastien, Ron K., Bassim, Nabil, Bechtel, Hans A., Borg, Janet, Bridges, John, Brownlee, Donald E., Burchell, Mark, Butterworth, Anna L., Changela, Hitesh, Cloetens, Peter, Davis, Andrew M., Doll, Ryan, Floss, Christine, Flynn, George, Fougeray, Patrick, Frank, David R., Gainsforth, Zack, Grün, Eberhard, Heck, Philipp R., Hillier, Jon K., Hoppe, Peter, Hudson, Bruce, Huth, Joachim, Hvide, Brit, Kearsley, Anton, King, Ashley J., Lai, Barry, Leitner, Jan, Lemelle, Laurence, Leroux, Hugues, Leonard, Ariel, Lettieri, Robert, Marchant, William, Nittler, Larry R., Ogliore, Ryan, Ong, Wei Ja, Postberg, Frank, Price, Mark C., Sandford, Scott A., Tresseras, Juan‐Angel Sans, Simionovici, Alexandre S., Solé, Vicente A., Srama, Ralf, Stadermann, Frank, Stephan, Thomas, Sterken, Veerle J., Stodolna, Julien, Stroud, Rhonda M., Sutton, Steven, Trieloff, Mario, Tsou, Peter, Tsuchiyama, Akira, Tyliszczak, Tolek, Von Korff, Joshua, Wordsworth, Naomi, Zevin, Daniel, Zolensky, Michael E.

“…Here, we report analyses by synchrotron X‐ray fluorescence microscopy of the elemental composition of eight candidate impact features extracted from the…”
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