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Richard C. Flagan

california institute of technology

122H-index
719Paper Count
6.0WCitation Count
Published Papers 197
Publication Date
Role of methanesulfonic acid in atmospheric particle nucleation and growth
errNature
IF48.5
err2026-06-24
err0
PREAI
errRima Baalbaki; Jiali Shen; Mario Simon; Hannah Klebach; Samuel Ruhl; Jenna DeVivo; Mingyi Wang; Wiebke Scholz; Lubna Dada; Birte Rörup; Dominik Stolzenburg; Hanna E. Manninen; Eva Sommer; Lucía Caudillo-Plath; Guillaume Marie; Martin Friedrich; Wenjuan Yu; Markus Leiminger; Dina Alfaouri; Antonio Amorim; Tatjana Arnoldi-Meadows; Hannah Beckmann; Moritz Berntheusel; Steffen Bräkling; Zoé Brasseur; Randall Chiu; Jonathan Duplissy; Henning Finkenzeller; Martin Heinritzi; Felix Kunkler; Houssni Lamkaddam; Brandon Lopez; Naser Mahfouz; Vladimir Makhmutov; Monica Martinez; Ruby Marten; Dario Massabo; Roy Mauldin; Bernhard Mentler; Markus Müller; Maxim Philippov; Ana A. Piedehierro; Pedro Rato; Tobias Reinecke; Sarah Richter; Douglas M. Russell; Benjamin Schulze; Mihnea Surdu; Roseline Thakur; Yee Jun Tham; Ping Tian; António Tomé; Yandong Tong; Jens Top; Andrea C. Wagner; Dongyu S. Wang; Yonghong Wang; Ryan X. Ward; Stefan K. Weber; André Welti; Yusheng Wu; Marcel Zauner-Wieczorek; Jiangyi Zhang; Joachim Curtius; Neil M. Donahue; Imad El Haddad; Richard C. Flagan; Armin Hansel; Hartwig Harder; Andreas Kürten; Tuukka Petäjä; Siegfried Schobesberger; Mikko Sipilä; Rainer Volkamer; Paul M. Winkler; Douglas R. Worsnop; Theodoros Christoudias; Andrea Pozzer; Markku Kulmala; Jasper Kirkby; Katrianne Lehtipalo; Xu-Cheng He
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On describing particle nucleation within the Volatility Basis Set
err2026-06-15
err0
errOAAI
errNeil M. Donahue; Lubna Dada; Dominik Stolzenburg; Eva Sommer; Mario Simon; Meredith Schervish; Jenna DeVivo; Alexandra Stinchfield; Natalie Burton; Nirvan Bhattacharyya; Brandon Lopez; Mingyi Wang; Wiebke Scholz; João Almeida; Bin Zhao; Martin Heinritzi; Hamish Gordon; Armin Hansel; Joachim Curtius; Katrianne Lehtipalo; Imad El Haddad; Jasper Kirkby; Richard Flagan; Markku Kulmala; Douglas Worsnop
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Calibrating interdependent photochemistry; nucleation; and aerosol microphysics in chamber experiments
err2026-05-28
err0
errOAAI
errNeil M. Donahue; Victoria Hofbauer; Henning Finkenzeller; Dominik Stolzenburg; Paulus S. Bauer; Randall Chiu; Lubna Dada; Jonathan Duplissy; Xu-Cheng He; Martin Heinritzi; Christopher R. Hoyle; Andreas Kürten; Aleksandr Kvashnin; Katrianne Lehtipalo; Naser Mahfouz; Vladimir Makhmutov; Roy L. Mauldin III; Ugo Molteni; Lauriane L. J. Quéléver; Matti Rissanen; Siegfried Schobesberger; Mario Simon; Andrea C. Wagner; Mingyi Wang; Chao Yan; Penglin Ye; Ilona Riipinen; Hamish Gordon; Joachim Curtius; Armin Hansel; Imad El Haddad; Markku Kulmala; Douglas R. Worsnop; Rainer Volkamer; Paul M. Winkler; Jasper Kirkby; Richard Flagan
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Isoprene chemistry under upper-tropospheric conditions
err2025-09-29
err0
errOAAI
errDouglas M. Russell; Felix Kunkler; Jiali Shen; Matthias Kohl; Jenna DeVivo; Nirvan Bhattacharyya; Christos Xenofontos; Hannah Klebach; Lucía Caudillo-Plath; Mario Simon; Emelda Ahongshangbam; João Almeida; Antonio Amorim; Hannah Beckmann; Mattia Busato; Manjula R. Canagaratna; Anouck Chassaing; Romulo Cruz-Simbron; Lubna Dada; Philip Holzbeck; Bernhard Judmaier; Milin Kaniyodical Sebastian; Paap Koemets; Timm Krüger; Lu Liu; Monica Martinez; Bernhard Mentler; Aleksandra Morawiec; Antti Onnela; Tuukka Petäjä; Pedro Rato; Mago Reza; Samuel Ruhl; Wiebke Scholz; Eva Sommer; António Tomé; Yandong Tong; Jens Top; Nsikanabasi Silas Umo; Gabriela R. Unfer; Ryan X. Ward; Jakob Weissbacher; Boxing Yang; Wenjuan Yu; Marcel Zauner-Wieczorek; Imad Zgheib; Jiangyi Zhang; Zhensen Zheng; Imad El Haddad; Richard C. Flagan; Armin Hansel; Heikki Junninen; Markku Kulmala; Katrianne Lehtipalo; Jos Lelieveld; Ottmar Möhler; Siegfried Schobesberger; Rainer Volkamer; Paul M. Winkler; Douglas R. Worsnop; Theodoros Christoudias; Andrea Pozzer; Neil M. Donahue; Hartwig Harder; Jasper Kirkby; Xu-Cheng He; Joachim Curtius
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A diagonal volatility basis set to assess the condensation of organic vapors onto particles
err2025-07-21
err0
errOAAI
errBrandon Lopez; Nirvan Bhattacharyya; Jenna DeVivo; Mingyi Wang; Lucia Caudillo; Mihnea Surdu; Federico Bianchi; Zoé Brasseur; Angela Buchholz; Dexian Chen; Jonathan Duplissy; Xucheng He; Victoria Hofbauer; Naser Mahfouz; Vladimir Makhmutov; Ruby Marten; Bernhard Mentler; Maxim Philippov; Meredith Schervish; Dongyu Wang; Stefan K Weber; André Welti; Imad El Haddad; Katrianne Lehtipalo; Markku Kulmala; Doug Worsnop; Jasper Kirkby; Roy Lee Mauldin; Dominik Stolzenburg; Siegfried Schobesberger; Richard Flagan; Neil McPherson Donahue
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Poorly quantified trends in ammonium nitrate remain critical to understand future urban aerosol control strategies
err2025-05-23
err0
PREAI
errWard, Ryan X.; Baliaka, Haroula D.; Schulze, Benjamin C.; Kerr, Gaige H.; Crounse, John D.; Hasheminassab, Sina; Bahreini, Roya; Dillner, Ann M.; Russell, Armistead; Ng, Nga L.; Wennberg, Paul O.; Flagan, Richard C.; Seinfeld, John H.
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The impact of ammonia on particle formation in the Asian Tropopause Aerosol Layer
err2024-09-12
err0
errOAAI
errXenofontos, Christos; Kohl, Matthias; Ruhl, Samuel; Almeida, Joao; Beckmann, Hannah M.; Caudillo-Plath, Lucia; Ehrhart, Sebastian; Hoehler, Kristina; Kaniyodical Sebastian, Milin; Kong, Weimeng; Kunkler, Felix; Onnela, Antti; Rato, Pedro; Russell, Douglas M.; Simon, Mario; Stark, Leander; Umo, Nsikanabasi Silas; Unfer, Gabriela R.; Yang, Boxing; Yu, Wenjuan; Zauner-Wieczorek, Marcel; Zgheib, Imad; Zheng, Zhensen; Curtius, Joachim; Donahue, Neil M.; El Haddad, Imad; Flagan, Richard C.; Gordon, Hamish; Harder, Hartwig; He, Xu-Cheng; Kirkby, Jasper; Kulmala, Markku; Moehler, Ottmar; Poehlker, Mira L.; Schobesberger, Siegfried; Volkamer, Rainer; Wang, Mingyi; Borrmann, Stephan; Pozzer, Andrea; Lelieveld, Jos; Christoudias, Theodoros
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Quantification of face seal leakage using parallel resistance model
err2023-12-27
err2
errOAAI
errPushpawela, Buddhi; Chea, Peter; Ward, Ryan; Flagan, Richard C.
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Atmospheric new particle formation from the CERN CLOUD experiment
err2023-11-07
err16
PREAI
errKirkby, Jasper; Amorim, Antonio; Baltensperger, Urs; Carslaw, Kenneth S.; Christoudias, Theodoros; Curtius, Joachim; Donahue, Neil M.; El Haddad, Imad; Flagan, Richard C.; Gordon, Hamish; Hansel, Armin; Harder, Hartwig; Junninen, Heikki; Kulmala, Markku; Kuerten, Andreas; Laaksonen, Ari; Lehtipalo, Katrianne; Lelieveld, Jos; Moehler, Ottmar; Riipinen, Ilona; Stratmann, Frank; Tome, Antonio; Virtanen, Annele; Volkamer, Rainer; Winkler, Paul M.; Worsnop, Douglas R.
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Measurement of the collision rate coefficients between atmospheric ions and multiply charged aerosol particles in the CERN CLOUD chamber
err2023-06-20
err4
errOAAI
errPfeifer, Joschka; Mahfouz, Naser G. A.; Schulze, Benjamin C.; Mathot, Serge; Stolzenburg, Dominik; Baalbaki, Rima; Brasseur, Zoe; Caudillo, Lucia; Dada, Lubna; Granzin, Manuel; He, Xu-Cheng; Lamkaddam, Houssni; Lopez, Brandon; Makhmutov, Vladimir; Marten, Ruby; Mentler, Bernhard; Mueller, Tatjana; Onnela, Antti; Philippov, Maxim; Piedehierro, Ana A.; Rorup, Birte; Schervish, Meredith; Tian, Ping; Umo, Nsikanabasi S.; Wang, Dongyu S.; Wang, Mingyi; Weber, Stefan K.; Welti, Andre; Wu, Yusheng; Zauner-Wieczorek, Marcel; Amorim, Antonio; El Haddad, Imad; Kulmala, Markku; Lehtipalo, Katrianne; Petaja, Tuukka; Tome, Antonio; Mirme, Sander; Manninen, Hanna E.; Donahue, Neil M.; Flagan, Richard C.; Kuerten, Andreas; Curtius, Joachim; Kirkby, Jasper
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An intercomparison study of four different techniques for measuring the chemical composition of nanoparticles
err2023-06-15
err3
errOAAI
errCaudillo, Lucia; Surdu, Mihnea; Lopez, Brandon; Wang, Mingyi; Thoma, Markus; Brakling, Steffen; Buchholz, Angela; Simon, Mario; Wagner, Andrea C.; Mueller, Tatjana; Granzin, Manuel; Heinritzi, Martin; Amorim, Antonio; Bell, David M.; Brasseur, Zoe; Dada, Lubna; Duplissy, Jonathan; Finkenzeller, Henning; He, Xu-Cheng; Lamkaddam, Houssni; Mahfouz, Naser G. A.; Makhmutov, Vladimir; Manninen, Hanna E.; Marie, Guillaume; Marten, Ruby; Mauldin, Roy L.; Mentler, Bernhard; Onnela, Antti; Petaja, Tuukka; Pfeifer, Joschka; Philippov, Maxim; Piedehierro, Ana A.; Rorup, Birte; Scholz, Wiebke; Shen, Jiali; Stolzenburg, Dominik; Tauber, Christian; Tian, Ping; Tome, Antonio; Umo, Nsikanabasi Silas; Wang, Dongyu S.; Wang, Yonghong; Weber, Stefan K.; Welti, Andre; Zauner-Wieczorek, Marcel; Baltensperger, Urs; Flagan, Richard C.; Hansel, Armin; Kirkby, Jasper; Kulmala, Markku; Lehtipalo, Katrianne; Worsnop, Douglas R.; El Haddad, Imad; Donahue, Neil M.; Vogel, Alexander L.; Kuerten, Andreas; Curtius, Joachim
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The gas-phase formation mechanism of iodic acid as an atmospheric aerosol source
err2022-11-14
err28
errOAAI
errFinkenzeller, Henning; Iyer, Siddharth; He, Xu-Cheng; Simon, Mario; Koenig, Theodore K.; Lee, Christopher F.; Valiev, Rashid; Hofbauer, Victoria; Amorim, Antonio; Baalbaki, Rima; Baccarini, Andrea; Beck, Lisa; Bell, David M.; Caudillo, Lucia; Chen, Dexian; Chiu, Randall; Chu, Biwu; Dada, Lubna; Duplissy, Jonathan; Heinritzi, Martin; Kemppainen, Deniz; Kim, Changhyuk; Krechmer, Jordan; Kurten, Andreas; Kvashnin, Alexandr; Lamkaddam, Houssni; Lee, Chuan Ping; Lehtipalo, Katrianne; Li, Zijun; Makhmutov, Vladimir; Manninen, Hanna E.; Marie, Guillaume; Marten, Ruby; Mauldin, Roy L.; Mentler, Bernhard; Muller, Tatjana; Petaja, Tuukka; Philippov, Maxim; Ranjithkumar, Ananth; Rorup, Birte; Shen, Jiali; Stolzenburg, Dominik; Tauber, Christian; Tham, Yee Jun; Tome, Antonio; Vazquez-Pufleau, Miguel; Wagner, Andrea C.; Wang, Dongyu S.; Wang, Mingyi; Wang, Yonghong; Weber, Stefan K.; Nie, Wei; Wu, Yusheng; Xiao, Mao; Ye, Qing; Zauner-Wieczorek, Marcel; Hansel, Armin; Baltensperger, Urs; Brioude, Jerome; Curtius, Joachim; Donahue, Neil M.; Haddad, Imad El; Flagan, Richard C.; Kulmala, Markku; Kirkby, Jasper; Sipila, Mikko; Worsnop, Douglas R.; Kurten, Theo; Rissanen, Matti; Volkamer, Rainer
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High Gas-Phase Methanesulfonic Acid Production in the OH-Initiated Oxidation of Dimethyl Sulfide at Low Temperatures
err2022-09-22
err23
errOAAI
errShen, Jiali; Scholz, Wiebke; He, Xu-Cheng; Zhou, Putian; Marie, Guillaume; Wang, Mingyi; Marten, Ruby; Surdu, Mihnea; Rorup, Birte; Baalbaki, Rima; Amorim, Antonio; Ataei, Farnoush; Bell, David M.; Bertozzi, Barbara; Brasseur, Zoe; Caudillo, Lucia; Chen, Dexian; Chu, Biwu; Dada, Lubna; Duplissy, Jonathan; Finkenzeller, Henning; Granzin, Manuel; Guida, Roberto; Heinritzi, Martin; Hofbauer, Victoria; Iyer, Siddharth; Kemppainen, Deniz; Kong, Weimeng; Krechmer, Jordan E.; Kuerten, Andreas; Lamkaddam, Houssni; Lee, Chuan Ping; Lopez, Brandon; Mahfouz, Naser G. A.; Manninen, Hanna E.; Massabo, Dario; Mauldin, Roy L.; Mentler, Bernhard; Mueller, Tatjana; Pfeifer, Joschka; Philippov, Maxim; Piedehierro, Ana A.; Roldin, Pontus; Schobesberger, Siegfried; Simon, Mario; Stolzenburg, Dominik; Tham, Yee Jun; Tome, Antonio; Umo, Nsikanabasi Silas; Wang, Dongyu; Wang, Yonghong; Weber, Stefan K.; Welti, Andre; de Jonge, Robin Wollesen; Wu, Yusheng; Zauner-Wieczorek, Marcel; Zust, Felix; Baltensperger, Urs; Curtius, Joachim; Flagan, Richard C.; Hansel, Armin; Moehler, Ottmar; Petaja, Tuukka; Volkamer, Rainer; Kulmala, Markku; Lehtipalo, Katrianne; Rissanen, Matti; Kirkby, Jasper; El-Haddad, Imad; Bianchi, Federico; Sipila, Mikko; Donahue, Neil M.; Worsnop, Douglas R.
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Chemical composition of nanoparticles from α-pinene nucleation and the influence of isoprene and relative humidity at low temperature
err2021-11-25
err22
errOAAI
errCaudillo, Lucia; Rorup, Birte; Heinritzi, Martin; Marie, Guillaume; Simon, Mario; Wagner, Andrea C.; Mueller, Tatjana; Granzin, Manuel; Amorim, Antonio; Ataei, Farnoush; Baalbaki, Rima; Bertozzi, Barbara; Brasseur, Zoe; Chiu, Randall; Chu, Biwu; Dada, Lubna; Duplissy, Jonathan; Finkenzeller, Henning; Carracedo, Loic Gonzalez; He, Xu-Cheng; Hofbauer, Victoria; Kong, Weimeng; Lamkaddam, Houssni; Lee, Chuan P.; Lopez, Brandon; Mahfouz, Naser G. A.; Makhmutov, Vladimir; Manninen, Hanna E.; Marten, Ruby; Massabo, Dario; Mauldin, Roy L.; Mentler, Bernhard; Molteni, Ugo; Onnela, Antti; Pfeifer, Joschka; Philippov, Maxim; Piedehierro, Ana A.; Schervish, Meredith; Scholz, Wiebke; Schulze, Benjamin; Shen, Jiali; Stolzenburg, Dominik; Stozhkov, Yuri; Surdu, Mihnea; Tauber, Christian; Tham, Yee Jun; Tian, Ping; Tome, Antonio; Vogt, Steffen; Wang, Mingyi; Wang, Dongyu S.; Weber, Stefan K.; Welti, Andre; Wang Yonghong; Wu Yusheng; Zauner-Wieczorek, Marcel; Baltensperger, Urs; El Haddad, Imad; Flagan, Richard C.; Hansel, Armin; Hoehler, Kristina; Kirkby, Jasper; Kulmala, Markku; Lehtipalo, Katrianne; Moehler, Ottmar; Saathoff, Harald; Volkamer, Rainer; Winkler, Paul M.; Donahue, Neil M.; Kuerten, Andreas; Curtius, Joachim
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The driving factors of new particle formation and growth in the polluted boundary layer
err2021-09-27
err50
errOAAI
errXiao, Mao; Hoyle, Christopher R.; Dada, Lubna; Stolzenburg, Dominik; Kuerten, Andreas; Wang, Mingyi; Lamkaddam, Houssni; Garmash, Olga; Mentler, Bernhard; Molteni, Ugo; Baccarini, Andrea; Simon, Mario; He, Xu-Cheng; Lehtipalo, Katrianne; Ahonen, Lauri R.; Baalbaki, Rima; Bauer, Paulus S.; Beck, Lisa; Bell, David; Bianchi, Federico; Brilke, Sophia; Chen, Dexian; Chiu, Randall; Dias, Antonio; Duplissy, Jonathan; Finkenzeller, Henning; Gordon, Hamish; Hofbauer, Victoria; Kim, Changhyuk; Koenig, Theodore K.; Lampilahti, Janne; Lee, Chuan Ping; Li, Zijun; Mai, Huajun; Makhmutov, Vladimir; Manninen, Hanna E.; Marten, Ruby; Mathot, Serge; Mauldin, Roy L.; Nie, Wei; Onnela, Antti; Partoll, Eva; Petaja, Tuukka; Pfeifer, Joschka; Pospisilova, Veronika; Quelever, Lauriane L. J.; Rissanen, Matti; Schobesberger, Siegfried; Schuchmann, Simone; Stozhkov, Yuri; Tauber, Christian; Tham, Yee Jun; Tome, Antonio; Vazquez-Pufleau, Miguel; Wagner, Andrea C.; Wagner, Robert; Wang, Yonghong; Weitz, Lena; Wimmer, Daniela; Wu, Yusheng; Yan, Chao; Ye, Penglin; Ye, Qing; Zha, Qiaozhi; Zhou, Xueqin; Amorim, Antonio; Carslaw, Ken; Curtius, Joachim; Hansel, Armin; Volkamer, Rainer; Winkler, Paul M.; Flagan, Richard C.; Kulmala, Markku; Worsnop, Douglas R.; Kirkby, Jasper; Donahue, Neil M.; Baltensperger, Urs; El Haddad, Imad; Dommen, Josef
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The nano-scanning electrical mobility spectrometer (nSEMS) and its application to size distribution measurements of 1.5-25nm particles
err2021-08-09
err9
errOAAI
errKong, Weimeng; Amanatidis, Stavros; Mai, Huajun; Kim, Changhyuk; Schulze, Benjamin C.; Huang, Yuanlong; Lewis, Gregory S.; Hering, Susanne, V; Seinfeld, John H.; Flagan, Richard C.
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Efficacy of a portable, moderate-resolution, fast-scanning differential mobility analyzer for ambient aerosol size distribution measurements
err2021-06-18
err3
errOAAI
errAmanatidis, Stavros; Huang, Yuanlong; Pushpawela, Buddhi; Schulze, Benjamin C.; Kenseth, Christopher M.; Ward, Ryan X.; Seinfeld, John H.; Hering, Susanne, V; Flagan, Richard C.
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Novel estimation of aerosol processes with particle size distribution measurements: a case study with the TOMAS algorithm v1.0.0
err2021-04-01
err1
errOAAI
errMcGuffin, Dana L.; Huang, Yuanlong; Flagan, Richard C.; Petaja, Tuukka; Ydstie, B. Erik; Adams, Peter J.
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Breath-, air- and surface-borne SARS-CoV-2 in hospitals
err2021-02-01
err95
errOAAI
errZhou, Lian; Yao, Maosheng; Zhang, Xiang; Hu, Bicheng; Li, Xinyue; Chen, Haoxuan; Zhang, Lu; Liu, Yun; Du, Meng; Sun, Bochao; Jiang, Yunyu; Zhou, Kai; Hong, Jie; Yu, Na; Ding, Zhen; Xu, Yan; Hu, Min; Morawska, Lidia; Grinshpun, Sergey A.; Biswas, Pratim; Flagan, Richard C.; Zhu, Baoli; Liu, Wenqing; Zhang, Yuanhang
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Overview of measurements and current instrumentation for 1-10 nm aerosol particle number size distributions
err2020-10-01
err65
errOAAI
errKangasluoma, Juha; Cai, Runlong; Jiang, Jingkun; Deng, Chenjuan; Stolzenburg, Dominik; Ahonen, Lauri R.; Chan, Tommy; Fu, Yueyun; Kim, Changhyuk; Laurila, Tiia M.; Zhou, Ying; Dada, Lubna; Sulo, Juha; Flagan, Richard C.; Kulmala, Markku; Petaja, Tuukka; Lehtipalo, Katrianne
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