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Carbenium ion-mediated oligomerization of methylglyoxal for secondary organic aerosol formation 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (24) : 13294-13299
作者:  Ji, Yuemen;  Shi, Qiuju;  Li, Yixin;  An, Taicheng;  Zheng, Jun;  Peng, Jianfei;  Gao, Yanpeng;  Chen, Jiangyao;  Li, Guiying;  Wang, Yuan;  Zhang, Fang;  Zhang, Annie L.;  Zhao, Jiayun;  Molina, Mario J.;  Zhang, Renyi
收藏  |  浏览/下载：19/0  |  提交时间：2020/06/09
secondary organic aerosol  aqueous  oligomerization  brown carbon  cationic  
Global airborne sampling reveals a previously unobserved dimethyl sulfide oxidation mechanism in the marine atmosphere 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (9) : 4505-4510
作者:  Veres, Patrick R.;  Neuman, J. Andrew;  Bertram, Timothy H.;  Assaf, Emmanuel;  Wolfe, Glenn M.;  Williamson, Christina J.;  Weinzierl, Bernadett;  Tilmes, Simone;  Thompson, Chelsea R.;  Thames, Alexander B.;  Schroder, Jason C.;  Saiz-Lopez, Alfonso;  Rollins, Andrew W.;  Roberts, James M.;  Price, Derek;  Peischl, Jeff;  Nault, Benjamin A.;  Moller, Kristian H.;  Miller, David O.;  Meinardi, Simone;  Li, Qinyi;  Lamarque, Jean-Francois;  Kupc, Agnieszka;  Kjaergaard, Henrik G.;  Kinnison, Douglas;  Jimenez, Jose L.;  Jernigan, Christopher M.;  Hornbrook, Rebecca S.;  Hills, Alan;  Dollner, Maximilian;  Day, Douglas A.;  Cuevas, Carlos A.;  Campuzano-Jost, Pedro;  Burkholder, James;  Bui, T. Paul;  Brune, William H.;  Brown, Steven S.;  Brock, Charles A.;  Bourgeois, Ilann;  Blake, Donald R.;  Apel, Eric C.;  Ryerson, Thomas B.
收藏  |  浏览/下载：25/0  |  提交时间：2020/05/13
dimethyl sulfide  marine sulfur  autoxidation  marine aerosols  aerosol sulfate  
Nightside condensation of iron in an ultrahot giant exoplanet 期刊论文
NATURE, 2020, 580 (7805) : 597-+
作者:  Lu, Zhihao;  Zou, Jianling;  Li, Shuang;  Topper, Michael J.;  Tao, Yong;  Zhang, Hao;  Jiao, Xi;  Xie, Wenbing;  Kong, Xiangqian;  Vaz, Michelle;  Li, Huili;  Cai, Yi;  Xia, Limin;  Huang, Peng;  Rodgers, Kristen;  Lee, Beverly;  Riemer, Joanne B.;  Day, Chi-Ping;  Yen, Ray-Whay Chiu;  Cui, Ying;  Wang, Yujiao;  Wang, Yanni;  Zhang, Weiqiang;  Easwaran, Hariharan;  Hulbert, Alicia;  Kim, KiBem;  Juergens, Rosalyn A.;  Yang, Stephen C.;  Battafarano, Richard J.;  Bush, Errol L.;  Broderick, Stephen R.;  Cattaneo, Stephen M.;  Brahmer, Julie R.;  Rudin, Charles M.;  Wrangle, John;  Mei, Yuping;  Kim, Young J.;  Zhang, Bin;  Wang, Ken Kang-Hsin;  Forde, Patrick M.;  Margolick, Joseph B.;  Nelkin, Barry D.;  Zahnow, Cynthia A.;  Pardoll, Drew M.;  Housseau, Franck;  Baylin, Stephen B.;  Shen, Lin;  Brock, Malcolm V.
收藏  |  浏览/下载：66/0  |  提交时间：2020/07/03

Ultrahot giant exoplanets receive thousands of times Earth'  s insolation(1,2). Their high-temperature atmospheres (greater than 2,000 kelvin) are ideal laboratories for studying extreme planetary climates and chemistry(3-5). Daysides are predicted to be cloud-free, dominated by atomic species(6) and much hotter than nightsides(5,7,8). Atoms are expected to recombine into molecules over the nightside(9), resulting in different day and night chemistries. Although metallic elements and a large temperature contrast have been observed(10-14), no chemical gradient has been measured across the surface of such an exoplanet. Different atmospheric chemistry between the day-to-night ('  evening'  ) and night-to-day ('  morning'  ) terminators could, however, be revealed as an asymmetric absorption signature during transit(4,7,15). Here we report the detection of an asymmetric atmospheric signature in the ultrahot exoplanet WASP-76b. We spectrally and temporally resolve this signature using a combination of high-dispersion spectroscopy with a large photon-collecting area. The absorption signal, attributed to neutral iron, is blueshifted by -11 +/- 0.7 kilometres per second on the trailing limb, which can be explained by a combination of planetary rotation and wind blowing from the hot dayside(16). In contrast, no signal arises from the nightside close to the morning terminator, showing that atomic iron is not absorbing starlight there. We conclude that iron must therefore condense during its journey across the nightside.


Absorption lines of iron in the dayside atmosphere of an ultrahot giant exoplanet disappear after travelling across the nightside, showing that the iron has condensed during its travel.


  
An unexpected catalyst dominates formation and radiative forcing of regional haze 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (8) : 3960-3966
作者:  Zhang, Fang;  Wang, Yuan;  Peng, Jianfei;  Chen, Lu;  Sun, Yele;  Duan, Lian;  Ge, Xinlei;  Li, Yixin;  Zhao, Jiayun;  Liu, Chao;  Zhang, Xiaochun;  Zhang, Gen;  Pan, Yuepeng;  Wang, Yuesi;  Zhang, Annie L.;  Ji, Yuemeng;  Wang, Gehui;  Hu, Min;  Molina, Mario J.;  Zhang, Renyi
收藏  |  浏览/下载：20/0  |  提交时间：2020/05/13
black carbon  air pollution  climate  multiphase chemistry  haze  
Fast oxidation of sulfur dioxide by hydrogen peroxide in deliquesced aerosol particles 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (3) : 1354-1359
作者:  Liu, Tengyu;  Clegg, Simon L.;  Abbatt, Jonathan P. D.
收藏  |  浏览/下载：12/0  |  提交时间：2020/05/13
air pollution  Chinese haze  sulfate aerosol  multiphase chemistry  aerosol kinetics  
Deep magma ocean formation set the oxidation state of Earth's mantle 期刊论文
SCIENCE, 2019, 365 (6456) : 903-+
作者:  Armstrong, Katherine;  Frost, Daniel J.;  McCammon, Catherine A.;  Rubie, David C.;  Ballaran, Tiziana Boffa
收藏  |  浏览/下载：9/0  |  提交时间：2019/11/27
Isotopic constraint on the twentieth-century increase in tropospheric ozone 期刊论文
NATURE, 2019, 570 (7760) : 224-+
作者:  Yeung, Laurence Y.;  Murray, Lee. T.;  Martinerie, Patricia;  Witrant, Emmanuel;  Hu, Huanting;  Banerjee, Asmita;  Orsi, Anais;  Chappellaz, Jerome
收藏  |  浏览/下载：6/0  |  提交时间：2019/11/27
Secondary organic aerosol reduced by mixture of atmospheric vapours 期刊论文
NATURE, 2019, 565 (7741) : 587-593
作者:  McFiggans, Gordon;  Mentel, Thomas F.;  Wildt, Juergen;  Pullinen, Iida;  Kang, Sungah;  Kleist, Einhard;  Schmitt, Sebastian;  Springer, Monika;  Tillmann, Ralf;  Wu, Cheng;  Zhao, Defeng;  Hallquist, Mattias;  Faxon, Cameron;  Le Breton, Michael;  Hallquist, Asa M.;  Simpson, David;  Bergstrom, Robert;  Jenkin, Michael E.;  Ehn, Mikael;  Thornton, Joel A.;  Alfarra, M. Rami;  Bannan, Thomas J.;  Percival, Carl J.;  Priestley, Michael;  Topping, David;  Kiendler-Scharr, Astrid
收藏  |  浏览/下载：13/0  |  提交时间：2019/11/27
Severe haze in northern China: A synergy of anthropogenic emissions and atmospheric processes 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (18) : 8657-8666
作者:  An, Zhisheng;  Huang, Ru-Jin;  Zhang, Renyi;  Tie, Xuexi;  Li, Guohui;  Cao, Junji;  Zhou, Weijian;  Shi, Zhengguo;  Han, Yongming;  Gu, Zhaolin;  Ji, Yuemeng
收藏  |  浏览/下载：12/0  |  提交时间：2019/11/27
severe haze  synergetic effects  anthropogenic emission  atmospheric chemistry  climate change  
Direct detection of atmospheric atomic bromine leading to mercury and ozone depletion 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (29) : 14479-14484
作者:  Wang, Siyuan;  McNamara, Stephen M.;  Moore, Christopher W.;  Obrist, Daniel;  Steffen, Alexandra;  Shepson, Paul B.;  Staebler, Ralf M.;  Raso, Angela R. W.;  Pratt, Kerri A.
收藏  |  浏览/下载：24/0  |  提交时间：2019/11/27
atmosphere  bromine  ozone  mercury