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A remnant planetary core in the hot-Neptune desert 期刊论文
NATURE, 2020, 583 (7814) : 39-+
作者:  David J. Armstrong;  Thé;  o A. Lopez;  Vardan Adibekyan;  Richard A. Booth;  Edward M. Bryant;  Karen A. Collins;  Magali Deleuil;  Alexandre Emsenhuber;  Chelsea X. Huang;  George W. King;  Jorge Lillo-Box;  Jack J. Lissauer;  Elisabeth Matthews;  Olivier Mousis;  Louise D. Nielsen;  Hugh Osborn;  Jon Otegi;  Nuno C. Santos;  ;  rgio G. Sousa;  Keivan G. Stassun;  Dimitri Veras;  Carl Ziegler;  Jack S. Acton;  Jose M. Almenara;  David R. Anderson;  David Barrado;  Susana C. C. Barros;  Daniel Bayliss;  Claudia Belardi;  Francois Bouchy;  ;  sar Briceñ;  o;  Matteo Brogi;  David J. A. Brown;  Matthew R. Burleigh;  Sarah L. Casewell;  Alexander Chaushev;  David R. Ciardi;  Kevin I. Collins;  Knicole D. Coló;  n;  Benjamin F. Cooke;  Ian J. M. Crossfield;  Rodrigo F. Dí;  az;  Elisa Delgado Mena;  Olivier D. S. Demangeon;  Caroline Dorn;  Xavier Dumusque;  Philipp Eigmü;  ller;  Michael Fausnaugh;  Pedro Figueira;  Tianjun Gan;  Siddharth Gandhi;  Samuel Gill;  Erica J. Gonzales;  Michael R. Goad;  Maximilian N. Gü;  nther;  Ravit Helled;  Saeed Hojjatpanah;  Steve B. Howell;  James Jackman;  James S. Jenkins;  Jon M. Jenkins;  Eric L. N. Jensen;  Grant M. Kennedy;  David W. Latham;  Nicholas Law;  Monika Lendl;  Michael Lozovsky;  Andrew W. Mann;  Maximiliano Moyano;  James McCormac;  Farzana Meru;  Christoph Mordasini;  Ares Osborn;  Don Pollacco;  Didier Queloz;  Liam Raynard;  George R. Ricker;  Pamela Rowden;  Alexandre Santerne;  Joshua E. Schlieder;  Sara Seager;  Lizhou Sha;  Thiam-Guan Tan;  Rosanna H. Tilbrook;  Eric Ting;  Sté;  phane Udry;  Roland Vanderspek;  Christopher A. Watson;  Richard G. West;  Paul A. Wilson;  Joshua N. Winn;  Peter Wheatley;  Jesus Noel Villasenor;  Jose I. Vines;  Zhuchang Zhan
收藏  |  浏览/下载:24/0  |  提交时间:2020/07/06

The interiors of giant planets remain poorly understood. Even for the planets in the Solar System, difficulties in observation lead to large uncertainties in the properties of planetary cores. Exoplanets that have undergone rare evolutionary processes provide a route to understanding planetary interiors. Planets found in and near the typically barren hot-Neptune '  desert'  (1,2)(a region in mass-radius space that contains few planets) have proved to be particularly valuable in this regard. These planets include HD149026b(3), which is thought to have an unusually massive core, and recent discoveries such as LTT9779b(4)and NGTS-4b(5), on which photoevaporation has removed a substantial part of their outer atmospheres. Here we report observations of the planet TOI-849b, which has a radius smaller than Neptune'  s but an anomalously large mass of39.1-2.6+2.7Earth masses and a density of5.2-0.8+0.7grams per cubic centimetre, similar to Earth'  s. Interior-structure models suggest that any gaseous envelope of pure hydrogen and helium consists of no more than3.9-0.9+0.8 per cent of the total planetary mass. The planet could have been a gas giant before undergoing extreme mass loss via thermal self-disruption or giant planet collisions, or it could have avoided substantial gas accretion, perhaps through gap opening or late formation(6). Although photoevaporation rates cannot account for the mass loss required to reduce a Jupiter-like gas giant, they can remove a small (a few Earth masses) hydrogen and helium envelope on timescales of several billion years, implying that any remaining atmosphere on TOI-849b is likely to be enriched by water or other volatiles from the planetary interior. We conclude that TOI-849b is the remnant core of a giant planet.


Observations of TOI-849b reveal a radius smaller than Neptune'  s but a large mass of about 40 Earth masses, indicating that the planet is the remnant core of a gas giant.


  
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  
Integration of airborne and ground observations of nitryl chloride in the Seoul metropolitan area and the implications on regional oxidation capacity during KORUS-AQ 2016 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2019, 19 (19) : 12779-12795
作者:  Jeong, Daun;  Seco, Roger;  Gu, Dasa;  Lee, Youngro;  Nault, Benjamin A.;  Knote, Christoph J.;  Mcgee, Tom;  Sullivan, John T.;  Jimenez, Jose L.;  Campuzano-Jost, Pedro;  Blake, Donald R.;  Sanchez, Dianne;  Guenther, Alex B.;  Tanner, David;  Huey, L. Gregory;  Long, Russell;  Anderson, Bruce E.;  Hall, Samuel R.;  Ullmann, Kirk;  Shin, Hye-jung;  Herndon, Scott C.;  Lee, Youngjae;  Kim, Danbi;  Ahn, Joonyoung;  Kim, Saewung
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
Contributions of biomass-burning, urban, and biogenic emissions to the concentrations and light-absorbing properties of particulate matter in central Amazonia during the dry season 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2019, 19 (12) : 7973-8001
作者:  de Sa, Suzane S.;  Rizzo, Luciana V.;  Palm, Brett B.;  Campuzano-Jost, Pedro;  Day, Douglas A.;  Yee, Lindsay D.;  Wernis, Rebecca;  Isaacman-VanWertz, Gabriel;  Brito, Joel;  Carbone, Samara;  Liu, Yingjun J.;  Sedlacek, Arthur;  Springston, Stephen;  Goldstein, Allen H.;  Barbosa, Henrique M. J.;  Alexander, M. Lizabeth;  Artaxo, Paulo;  Jimenez, Jose L.;  Martin, Scot T.
收藏  |  浏览/下载:17/0  |  提交时间:2019/11/26
The genomic history of the Iberian Peninsula over the past 8000 years 期刊论文
SCIENCE, 2019, 363 (6432) : 1230-+
作者:  Olalde, Inigo;  Mallick, Swapan;  Patterson, Nick;  Rohland, Nadin;  Villalba-Mouco, Vanessa;  Silva, Marina;  Dulias, Katharina;  Edwards, Ceiridwen J.;  Gandini, Francesca;  Pala, Maria;  Soares, Pedro;  Ferrando-Bernal, Manuel;  Adamski, Nicole;  Broomandkhoshbacht, Nasreen;  Cheronet, Olivia;  Culleton, Brendan J.;  Fernandes, Daniel;  Lawson, Ann Marie;  Mah, Matthew;  Oppenheimer, Jonas;  Stewardson, Kristin;  Zhang, Zhao;  Arenas, Juan Manuel Jimenez;  Moyano, Isidro Jorge Toro;  Salazar-Garcia, Domingo C.;  Castanyer, Pere;  Santos, Marta;  Tremoleda, Joaquim;  Lozano, Marina;  Borja, Pablo Garcia;  Fernandez-Eraso, Javier;  Mujika-Alustiza, Jose Antonio;  Barroso, Cecilio;  Bermudez, Francisco J.;  Minguez, Enrique Viguera;  Burch, Josep;  Coromina, Neus;  Vivo, David;  Cebria, Artur;  Fullola, Josep Maria;  Garcia-Puchol, Oreto;  Morales, Juan Ignacio;  Oms, F. Xavier;  Majo, Tona;  Verges, Josep Maria;  Diaz-Carvajal, Antonia;  Ollich-Castanyer, Imma;  Lopez-Cachero, F. Javier;  Silva, Ana Maria;  Alonso-Fernandez, Carmen;  De Castro, German Delibes;  Echevarria, Javier Jimenez;  Moreno-Marquez, Adolfo;  Berlanga, Guillermo Pascual;  Ramos-Garcia, Pablo;  Munoz, Jose Ramos;  Vila, Eduardo Vijande;  Arzo, Gustau Aguilella;  Arroyo, Angel Esparza;  Lillios, Katina T.;  Mack, Jennifer;  Velasco-Vazquez, Javier;  Waterman, Anna;  Enrich, Luis Benitez De Lugo;  Sanchez, Maria Benito;  Agusti, Bibiana;  Codina, Ferran;  De Prado, Gabriel;  Estalrrich, Almudena;  Flores, Alvaro Fernandez;  Finlayson, Clive;  Finlayson, Geraldine;  Finlayson, Stewart;  Giles-Guzman, Francisco;  Rosas, Antonio;  Gonzalez, Virginia Barciela;  Atienzar, Gabriel Garcia;  Perez, Mauro S. Hernandez;  Llanos, Armando;  Marco, Yolanda Carrion;  Beneyto, Isabel Collado;  Lopez-Serrano, David;  Tormo, Mario Sanz;  Valera, Antonio C.;  Blasco, Concepcion;  Liesau, Corina;  Rios, Patricia;  Daura, Joan;  de Pedro Micho, Maria Jesus;  Diez-Castillo, Agustin A.;  Fernandez, Raul Flores;  Farre, Joan Frances;  Garrido-Pena, Rafael;  Goncalves, Victor S.;  Guerra-Doce, Elisa;  Herrero-Corral, Ana Mercedes;  Juan-Cabanilles, Joaquim;  Lopez-Reyes, Daniel;  McClure, Sarah B.;  Perez, Marta Merino;  Foix, Arturo Oliver;  Borras, Montserrat Sanz;  Sousa, Ana Catarina;  Encinas, Julio Manuel Vidal;  Kennett, Douglas J.;  Richards, Martin B.;  Alt, Kurt Werner;  Haak, Wolfgang;  Pinhasi, Ron;  Lalueza-Fox, Carles;  Reich, David
收藏  |  浏览/下载:22/0  |  提交时间:2019/11/27
Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2018, 18 (14) : 10433-10457
作者:  Yee, Lindsay D.;  Isaacman-VanWertz, Gabriel;  Wernis, Rebecca A.;  Meng, Meng;  Rivera, Ventura;  Kreisberg, Nathan M.;  Hering, Susanne V.;  Bering, Mads S.;  Glasius, Marianne;  Upshur, Mary Alice;  Be, Ariana Gray;  Thomson, Regan J.;  Geiger, Franz M.;  Offenberg, John H.;  Lewandowski, Michael;  Kourtchev, Ivan;  Kalberer, Markus;  de Sa, Suzane;  Martin, Scot T.;  Alexander, M. Lizabeth;  Palm, Brett B.;  Hu, Weiwei;  Campuzano-Jost, Pedro;  Day, Douglas A.;  Jimenez, Jose L.;  Liu, Yingjun;  McKinney, Karena A.;  Artaxo, Paulo;  Viegas, Juarez;  Manzi, Antonio;  Oliveira, Maria B.;  de Souza, Rodrigo;  Machado, Luiz A. T.;  Longo, Karla;  Goldstein, Allen H.
收藏  |  浏览/下载:13/0  |  提交时间:2019/04/09
Secondary organic aerosol formation from ambient air in an oxidation flow reactor in central Amazonia 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2018, 18 (1) : 467-493
作者:  Palm, Brett B.;  de Sa, Suzane S.;  Day, Douglas A.;  Campuzano-Jost, Pedro;  Hu, Weiwei;  Seco, Roger;  Sjostedt, Steven J.;  Park, Jeong-Hoo;  Guenther, Alex B.;  Kim, Saewung;  Brito, Joel;  Wurm, Florian;  Artaxo, Paulo;  Thalman, Ryan;  Wang, Jian;  Yee, Lindsay D.;  Wernis, Rebecca;  Isaacman-VanWertz, Gabriel;  Goldstein, Allen H.;  Liu, Yingjun;  Springston, Stephen R.;  Souza, Rodrigo;  Newburn, Matt K.;  Alexander, M. Lizabeth;  Martin, Scot T.;  Jimenez, Jose L.
收藏  |  浏览/下载:12/0  |  提交时间:2019/04/09
Comprehensive characterization of atmospheric organic carbon at a forested site 期刊论文
NATURE GEOSCIENCE, 2017, 10 (10)
作者:  Hunter, James F.;  Day, Douglas A.;  Palm, Brett B.;  Yatavelli, Reddy L. N.;  Chan, ArthurW. H.;  Kaser, Lisa;  Cappellin, Luca;  Hayes, Patrick L.;  Cross, Eben S.;  Carrasquillo, Anthony J.;  Campuzano-Jost, Pedro;  Stark, Harald;  Zhao, Yunliang;  Hohaus, Thorsten;  Smith, James N.;  Hansel, Armin;  Karl, Thomas;  Goldstein, Allen H.;  Guenther, Alex;  Worsnop, Douglas R.;  Thornton, Joel A.;  Heald, Colette L.;  Jimenez, Jose L.;  Kroll, Jesse H.
收藏  |  浏览/下载:12/0  |  提交时间:2019/04/09
Secondary organic aerosol formation from in situ OH, O-3, and NO3 oxidation of ambient forest air in an oxidation flow reactor 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2017, 17 (8)
作者:  Palm, Brett B.;  Campuzano-Jost, Pedro;  Day, Douglas A.;  Ortega, Amber M.;  Fry, Juliane L.;  Brown, Steven S.;  Zarzana, Kyle J.;  Dube, William;  Wagner, Nicholas L.;  Draper, Danielle C.;  Kaser, Lisa;  Jud, Werner;  Karl, Thomas;  Hansel, Armin;  Gutierrez-Montes, Candido;  Jimenez, Jose L.
收藏  |  浏览/下载:11/0  |  提交时间:2019/04/09
Global atmospheric teleconnections during Dansgaard-Oeschger events 期刊论文
NATURE GEOSCIENCE, 2017, 10 (1)
作者:  Markle, Bradley R.;  Steig, Eric J.;  Buizert, Christo;  Schoenemann, Spruce W.;  Bitz, Cecilia M.;  Fudge, T. J.;  Pedro, Joel B.;  Ding, Qinghua;  Jones, Tyler R.;  White, JamesW. C.;  Sowers, Todd
收藏  |  浏览/下载:17/0  |  提交时间:2019/04/09