Early Release Science of the exoplanet WASP-39b with JWST NIRCam.
Early Release Science of the exoplanet WASP-39b with JWST NIRCam.
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利用JWST NIRCam对系外行星WASP-39b的早期释放科学。
DOI：
10.1038/s41586-022-05590-4
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发表时间：
2023-03
期刊：
影响因子：
64.8
通讯作者：
Zhang, Xi
中科院分区：
文献类型：
--
作者：
Ahrer, Eva-Maria;Stevenson, Kevin B.;Mansfield, Megan;Moran, Sarah E.;Brande, Jonathan;Morello, Giuseppe;Murray, Catriona A.;Nikolov, Nikolay K.;de la Roche, Dominique J. M. Petit Dit;Schlawin, Everett;Wheatley, Peter J.;Zieba, Sebastian;Batalha, Natasha E.;Damiano, Mario;Goyal, Jayesh M.;Lendl, Monika;Lothringer, Joshua D.;Mukherjee, Sagnick;Ohno, Kazumasa;Batalha, Natalie M.;Battley, Matthew P.;Bean, Jacob L.;Beatty, Thomas G.;Benneke, Bjorn;Berta-Thompson, Zachory K.;Carter, Aarynn L.;Cubillos, Patricio E.;Daylan, Tansu;Espinoza, Nestor;Gao, Peter;Gibson, Neale P.;Gill, Samuel;Harrington, Joseph;Hu, Renyu;Kreidberg, Laura;Lewis, Nikole K.;Line, Michael R.;Lopez-Morales, Mercedes;Parmentier, Vivien;Powell, Diana K.;Sing, David K.;Tsai, Shang-Min;Wakeford, Hannah R.;Welbanks, Luis;Alam, Munazza K.;Alderson, Lili;Allen, Natalie H.;Anderson, David R.;Barstow, Joanna K.;Bayliss, Daniel;Bell, Taylor J.;Blecic, Jasmina;Bryant, Edward M.;Burleigh, Matthew R.;Carone, Ludmila;Casewell, S. L.;Changeat, Quentin;Chubb, Katy L.;Crossfield, Ian J. M.;Crouzet, Nicolas;Decin, Leen;Desert, Jean-Michel;Feinstein, Adina D.;Flagg, Laura;Fortney, Jonathan J.;Gizis, John E.;Heng, Kevin;Iro, Nicolas;Kempton, Eliza M. -R.;Kendrew, Sarah;Kirk, James;Knutson, Heather A.;Komacek, Thaddeus D.;Lagage, Pierre-Olivier;Leconte, Jeremy;Lustig-Yaeger, Jacob;MacDonald, Ryan J.;Mancini, Luigi;May, E. M.;Mayne, N. J.;Miguel, Yamila;Mikal-Evans, Thomas;Molaverdikhani, Karan;Palle, Enric;Piaulet, Caroline;Rackham, Benjamin V.;Redfield, Seth;Rogers, Laura K.;Roy, Pierre-Alexis;Rustamkulov, Zafar;Shkolnik, Evgenya L.;Sotzen, Kristin S.;Taylor, Jake;Tremblin, P.;Tucker, Gregory S.;Turner, Jake D.;de Val-Borro, Miguel;Venot, Olivia;Zhang, Xi
测量系外行星大气中的金属丰度和碳氧比（C/O）是限制主要化学过程的基本步骤，如果处于平衡状态，则揭示行星形成历史。透射光谱（例如，参考文献）通过限制含氧和含碳物种的丰度提供了必要的手段;然而，这需要宽波长覆盖范围、中等光谱分辨率和高精度，而这些都是以前的观测站无法实现的。现在JWST已经开始科学运作，我们能够以以前未知的波长和光谱分辨率观测系外行星。在这里，我们报告了使用JWST的近红外相机（NIRCam）对凌日系外行星WASP-39 b的时间序列观测。长波长分光和短波长光度计的光变曲线跨度为2.0-4.0微米，显示出最低限度的系统分类，并揭示了该行星光谱中明确的分子吸收特征。具体来说，我们检测大气中的气态水，并对甲烷的丰度设定上限。在2.8微米处的二氧化碳特征在很大程度上被水掩盖了。最适合的化学平衡模型支持大气金属丰度为太阳的1-100倍（即相对于太阳而言，比氦重的元素富集）和亚恒星C/O比。推断的高金属丰度和低C/O比可能表明在行星形成期间固体物质的显著吸积（例如，参考文献104）。，）或高层大气中的不平衡过程（例如，参考文献10）。). JWST对凌日系外行星WASP-39 b的时间序列观测显示，行星大气中存在气态水，并对甲烷丰度设定了上限。
Measuring the metallicity and carbon-to-oxygen (C/O) ratio in exoplanet atmospheres is a fundamental step towards constraining the dominant chemical processes at work and, if in equilibrium, revealing planet formation histories. Transmission spectroscopy (for example, refs. ) provides the necessary means by constraining the abundances of oxygen- and carbon-bearing species; however, this requires broad wavelength coverage, moderate spectral resolution and high precision, which, together, are not achievable with previous observatories. Now that JWST has commenced science operations, we are able to observe exoplanets at previously uncharted wavelengths and spectral resolutions. Here we report time-series observations of the transiting exoplanet WASP-39b using JWST’s Near InfraRed Camera (NIRCam). The long-wavelength spectroscopic and short-wavelength photometric light curves span 2.0–4.0 micrometres, exhibit minimal systematics and reveal well defined molecular absorption features in the planet’s spectrum. Specifically, we detect gaseous water in the atmosphere and place an upper limit on the abundance of methane. The otherwise prominent carbon dioxide feature at 2.8 micrometres is largely masked by water. The best-fit chemical equilibrium models favour an atmospheric metallicity of 1–100-times solar (that is, an enrichment of elements heavier than helium relative to the Sun) and a substellar C/O ratio. The inferred high metallicity and low C/O ratio may indicate significant accretion of solid materials during planet formation (for example, refs. ,) or disequilibrium processes in the upper atmosphere (for example, refs. ). Time-series observations from the JWST of the transiting exoplanet WASP-39b show gaseous water in the planet’s atmosphere and place an upper limit on the abundance of methane.
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影响因子：
64.8
作者：
Feinstein, Adina D.;Radica, Michael;Welbanks, Luis;Murray, Catriona Anne;Ohno, Kazumasa;Coulombe, Louis-Philippe;Espinoza, Nestor;Bean, Jacob L.;Teske, Johanna K.;Benneke, Bjorn;Line, Michael R.;Rustamkulov, Zafar;Saba, Arianna;Tsiaras, Angelos;Barstow, Joanna K.;Fortney, Jonathan J.;Gao, Peter;Knutson, Heather A.;MacDonald, Ryan J.;Mikal-Evans, Thomas;Rackham, Benjamin V.;Taylor, Jake;Parmentier, Vivien;Batalha, Natalie M.;Berta-Thompson, Zachory K.;Carter, Aarynn L.;Changeat, Quentin;dos Santos, Leonardo A.;Gibson, Neale P.;Goyal, Jayesh M.;Kreidberg, Laura;Lopez-Morales, Mercedes;Lothringer, Joshua D.;Miguel, Yamila;Molaverdikhani, Karan;Moran, Sarah E.;Morello, Giuseppe;Mukherjee, Sagnick;Sing, David K.;Stevenson, Kevin B.;Wakeford, Hannah R.;Ahrer, Eva-Maria;Alam, Munazza K.;Alderson, Lili;Allen, Natalie H.;Batalha, Natasha E.;Bell, Taylor J.;Blecic, Jasmina;Brande, Jonathan;Caceres, Claudio;Casewell, S. L.;Chubb, Katy L.;Crossfield, Ian J. M.;Crouzet, Nicolas;Cubillos, Patricio E.;Decin, Leen;Desert, Jean-Michel;Harrington, Joseph;Heng, Kevin;Henning, Thomas;Iro, Nicolas;Kempton, Eliza M. -R.;Kendrew, Sarah;Kirk, James;Krick, Jessica;Lagage, Pierre-Olivier;Lendl, Monika;Mancini, Luigi;Mansfield, Megan;May, E. M.;Mayne, N. J.;Nikolov, Nikolay K.;Palle, Enric;de la Roche, Dominique J. M. Petit Dit;Piaulet, Caroline;Powell, Diana;Redfield, Seth;Rogers, Laura K.;Roman, Michael T.;Roy, Pierre-Alexis;Nixon, Matthew C.;Schlawin, Everett;Tan, Xianyu;Tremblin, P.;Turner, Jake D.;Venot, Olivia;Waalkes, William C.;Wheatley, Peter J.;Zhang, Xi
通讯作者：
Zhang, Xi
影响因子：
64.8
作者：
Alderson, Lili;Wakeford, Hannah R.;Alam, Munazza K.;Batalha, Natasha E.;Lothringer, Joshua D.;Redai, Jea Adams;Barat, Saugata;Brande, Jonathan;Damiano, Mario;Daylan, Tansu;Espinoza, Nestor;Flagg, Laura;Goyal, Jayesh M.;Grant, David;Hu, Renyu;Inglis, Julie;Lee, Elspeth K. H.;Mikal-Evans, Thomas;Ramos-Rosado, Lakeisha;Roy, Pierre-Alexis;Wallack, Nicole L.;Batalha, Natalie M.;Bean, Jacob L.;Benneke, Bjorn;Berta-Thompson, Zachory K.;Carter, Aarynn L.;Changeat, Quentin;Colon, Knicole D.;Crossfield, Ian J. M.;Desert, Jean-Michel;Foreman-Mackey, Daniel;Gibson, Neale P.;Kreidberg, Laura;Line, Michael R.;Lopez-Morales, Mercedes;Molaverdikhani, Karan;Moran, Sarah E.;Morello, Giuseppe;Moses, Julianne I.;Mukherjee, Sagnick;Schlawin, Everett;Sing, David K.;Stevenson, Kevin B.;Taylor, Jake;Aggarwal, Keshav;Ahrer, Eva-Maria;Allen, Natalie H.;Barstow, Joanna K.;Bell, Taylor J.;Blecic, Jasmina;Casewell, Sarah L.;Chubb, Katy L.;Crouzet, Nicolas;Cubillos, Patricio E.;Decin, Leen;Feinstein, Adina D.;Fortney, Joanthan J.;Harrington, Joseph;Heng, Kevin;Iro, Nicolas;Kempton, Eliza M. -R.;Kirk, James;Knutson, Heather A.;Krick, Jessica;Leconte, Jeremy;Lendl, Monika;MacDonald, Ryan J.;Mancini, Luigi;Mansfield, Megan;May, Erin M.;Mayne, Nathan J.;Miguel, Yamila;Nikolov, Nikolay K.;Ohno, Kazumasa;Palle, Enric;Parmentier, Vivien;de la Roche, Dominique J. M. Petit Dit;Piaulet, Caroline;Powell, Diana;Rackham, Benjamin V.;Redfield, Seth;Rogers, Laura K.;Rustamkulov, Zafar;Tan, Xianyu;Tremblin, P.;Tsai, Shang-Min;Turner, Jake D.;de Val-Borro, Miguel;Venot, Olivia;Welbanks, Luis;Wheatley, Peter J.;Zhang, Xi
通讯作者：
Zhang, Xi
影响因子：
64.8
作者：
Ahrer, Eva-Maria;Alderson, Lili;Batalha, Natalie M.;Batalha, Natasha E.;Bean, Jacob L.;Beatty, Thomas G.;Bell, Taylor J.;Benneke, Bjorn;Berta-Thompson, Zachory K.;Carter, Aarynn L.;Crossfield, Ian J. M.;Espinoza, Nestor;Feinstein, Adina D.;Fortney, Jonathan J.;Gibson, Neale P.;Goyal, Jayesh M.;Kempton, Eliza M-R;Kirk, James;Kreidberg, Laura;Lopez-Morales, Mercedes;Line, Michael R.;Lothringer, Joshua D.;Moran, Sarah E.;Mukherjee, Sagnick;Ohno, Kazumasa;Parmentier, Vivien;Piaulet, Caroline;Rustamkulov, Zafar;Schlawin, Everett;Sing, David K.;Stevenson, Kevin B.;Wakeford, Hannah R.;Allen, Natalie H.;Birkmann, Stephan M.;Brande, Jonathan;Crouzet, Nicolas;Cubillos, Patricio E.;Damiano, Mario;Desert, Jean-Michel;Gao, Peter;Harrington, Joseph;Hu, Renyu;Kendrew, Sarah;Knutson, Heather A.;Lagage, Pierre-Olivier;Leconte, Jeremy;Lendl, Monika;MacDonald, Ryan J.;May, E. M.;Miguel, Yamila;Molaverdikhani, Karan;Moses, Julianne, I;Murray, Catriona Anne;Nehring, Molly;Nikolov, Nikolay K.;de la Roche, D. J. M. Petit Dit;Radica, Michael;Roy, Pierre-Alexis;Stassun, Keivan G.;Taylor, Jake;Waalkes, William C.;Wachiraphan, Patcharapol;Welbanks, Luis;Wheatley, Peter J.;Aggarwal, Keshav;Alam, Munazza K.;Banerjee, Agnibha;Barstow, Joanna K.;Blecic, Jasmina;Casewell, S. L.;Changeat, Quentin;Chubb, K. L.;Colon, Knicole D.;Coulombe, Louis-Philippe;Daylan, Tansu;De Val-Borro, Miguel;Decin, Leen;Dos Santos, Leonardo A.;Flagg, Laura;France, Kevin;Fu, Guangwei;Munoz, A. Garcia;Gizis, John E.;Glidden, Ana;Grant, David;Heng, Kevin;Henning, Thomas;Hong, Yu-Cian;Inglis, Julie;Iro, Nicolas;Kataria, Tiffany;Komacek, Thaddeus D.;Krick, Jessica E.;Lee, Elspeth K. H.;Lewis, Nikole K.;Lillo-Box, Jorge;Lustig-Yaeger, Jacob;Mancini, Luigi;Mandell, Avi M.;Mansfield, Megan;Marley, Mark S.;Mikal-Evans, Thomas;Morello, Giuseppe;Nixon, Matthew C.;Ceballos, Kevin Ortiz;Piette, Anjali A. A.;Powell, Diana;Rackham, Benjamin, V;Ramos-Rosado, Lakeisha;Rauscher, Emily;Redfield, Seth;Rogers, Laura K.;Roman, Michael T.;Roudier, Gael M.;Scarsdale, Nicholas;Shkolnik, Evgenya L.;Southworth, John;Spake, Jessica J.;Steinrueck, Maria E.;Tan, Xianyu;Teske, Johanna K.;Tremblin, Pascal;Tsai, Shang-Min;Tucker, Gregory S.;Turner, Jake D.;Valenti, Jeff A.;Venot, Olivia;Waldmann, Ingo P.;Wallack, Nicole L.;Zhang, Xi;Zieba, Sebastian
通讯作者：
Zieba, Sebastian
影响因子：
4.9
作者：
Fischer, Patrick D.;Knutson, Heather A.;Vidal-Madjar, Alfred
通讯作者：
Vidal-Madjar, Alfred
影响因子：
4.9
作者：
Fortney, JJ;Marley, MS;Freedman, R
通讯作者：
Freedman, R