Zobrazeno 1 - 10 of 125 pro vyhledávání: '"Anita M S Richards"'
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Akademický článek
Comment on 'Phosphine in the Venusian Atmosphere: A Strict Upper Limit From SOFIA GREAT Observations' by Cordiner et al.
Autor: Jane S. Greaves, Janusz J. Petkowski, Anita M. S. Richards, Clara Sousa‐Silva, Sara Seager, David L. Clements
Publikováno v: Geophysical Research Letters, Vol 50, Iss 23, Pp n/a-n/a (2023)
Abstract Searches for phosphine in Venus' atmosphere have sparked a debate. Cordiner et al. (2022, https://doi.org/10.1029/2022gl101055) analyze spectra from the Stratospheric Observatory For Infrared Astronomy (SOFIA) and infer
Externí odkaz: https://doaj.org/article/32f9fe41292347f0bd96e432667bfa84
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(Sub)stellar companions shape the winds of evolved stars
Autor: D. Gobrecht, Sandra Etoka, Malcolm Gray, I. El Mellah, Theo Khouri, W. Homan, K. T. Wong, Manali Jeste, Sofia Wallström, J. De Ridder, Pierre Kervella, E. De Beck, L. B. F. M. Waters, F. De Ceuster, E. Cannon, Leen Decin, E. Lagadec, Alain Baudry, Hugues Sana, Albert A. Zijlstra, Anita M. S. Richards, Taissa Danilovich, Raghvendra Sahai, J. A. Yates, J. Bolte, Carl A. Gottlieb, A. de Koter, John M. C. Plane, Karl M. Menten, M. Van de Sande, Iain McDonald, Miguel Montargès, Holger S. P. Müller, Tom J. Millar, Fabrice Herpin
Publikováno v: Science
Science, American Association for the Advancement of Science, 2020, 369 (6510), pp.1497-1500. ⟨10.1126/science.abb1229⟩
Decin, L, Montargès, M, Richards, A M S, Gottlieb, C A, Homan, W, McDonald, I, Mellah, I E, Danilovich, T, Wallström, S H J, Zijlstra, A, Baudry, A, Bolte, J, Cannon, E, Beck, E D, Ceuster, F D, Koter, A D, Ridder, J D, Etoka, S, Gobrecht, D, Gray, M, Herpin, F, Jeste, M, Lagadec, E, Kervella, P, Khouri, T, Menten, K, Millar, T J, Müller, H S P, Plane, J M C, Sahai, R, Sana, H, Sande, M V D, Waters, L B F M, Wong, K T & Yates, J 2020, ' (Sub)-Stellar Companions Shape the Winds of Evolved Stars ', Science, vol. 369, no. 6510, pp. 1497-1500 . https://doi.org/10.1126/science.abb1229
Science, 369(6510), 1497-1500. American Association for the Advancement of Science
Binary interactions dominate the evolution of massive stars, but their role is less clear for low- and intermediate-mass stars. The evolution of a spherical wind from an asymptotic giant branch (AGB) star into a nonspherical planetary nebula (PN) cou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f58528ddd4dd6d63bcaf358be16732c1
https://doi.org/10.1126/science.abb1229
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Phosphine gas in the cloud decks of Venus
Autor: Sara Seager, Jim Hoge, Janusz J. Petkowski, David L. Clements, Jane Greaves, E’lisa Lee, Paul B. Rimmer, Anita M. S. Richards, Per Friberg, Sukrit Ranjan, William Bains, Hideo Sagawa, Clara Sousa-Silva, Emily Drabek-Maunder, Zhuchang Zhan, Iain Coulson, Ingo Mueller-Wodarg, Helen J. Fraser, Annabel Cartwright
Publikováno v: Greaves, J S, Richards, A M S, Bains, W, Rimmer, P B, Sagawa, H, Clements, D L, Seager, S, Petkowski, J J, Sousa-Silva, C, Ranjan, S, Drabek-Maunder, E, Fraser, H J, Cartwright, A, Mueller-Wodarg, I, Zhan, Z, Friberg, P, Coulson, I, Lee, E & Hoge, J 2020, ' Phosphine Gas in the Cloud Decks of Venus ', Nature Astronomy, vol. 5, no. 7, pp. 655-664 . https://doi.org/10.1038/s41550-020-1174-4
Measurements of trace gases in planetary atmospheres help us explore chemical conditions different to those on Earth. Our nearest neighbour, Venus, has cloud decks that are temperate but hyperacidic. Here we report the apparent presence of phosphine
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e549bb7affafd27d53f3a8cf3b42a26
https://doi.org/10.1038/s41550-020-1174-4
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7
Venusian phosphine: a 'Wow!' signal in chemistry?
Autor: Sukrit Ranjan, Clara Sousa-Silva, William Bains, Zhuchang Zhan, Paul B. Rimmer, Jane S. Greaves, Anita M. S. Richards, Sara Seager, Janusz J. Petkowski
The potential detection of ppb levels phosphine (PH3) in the clouds of Venus through millimeter-wavelength astronomical observations is extremely surprising as PH3 is an unexpected component of an oxidized environment of Venus. A thorough analysis of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67ef26f5b46a67a16e268312de7c06b3
http://arxiv.org/abs/2111.05182
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8
ATOMIUM: The astounding complexity of the near circumstellar environment of the M-type AGB star R Hydrae - I. Morpho-kinematical interpretation of CO and SiO emission
Autor: John M. C. Plane, Raghvendra Sahai, Dylan Kee, Tom J. Millar, Fabrice Herpin, Alain Baudry, Joe Nuth, Ward Homan, Iain McDonald, S. Maes, Albert A. Zijlstra, Malcolm Gray, Marie Van de Sande, D. Gobrecht, K. T. Wong, Holger S. P. Müller, Alex de Koter, Bannawit Pimpanuwat, Taissa Danilovich, Eric Lagadec, Jan Philip Sindel, Frederik De Ceuster, Kelvin Lee, Sofia Wallström, Anita M. S. Richards, J. Malfait, Miguel Montargès, Sandra Etoka, Jeremy Yates, Leen Decin, Carl A. Gottlieb, Rens Waters, Pierre Kervella, J. Bolte, Ileyk El Mellah, E. Cannon, Daniel Price, Manali Jeste, Karl M. Menten
Publikováno v: Homan, W, Pimpanuwat, B, Herpin, F, Danilovich, T, McDonald, I, Wallström, S H J, Richards, A M S, Baudry, A, Sahai, R, Millar, T, de Koter, A, Gottlieb, C A, Kervella, P, Montarges, M, Van de Sande, M, Decin, L, Zijlstra, A A, Etoka, S, Jeste, M, Müller, H S P, Maes, S, Malfait, J, Menten, K, Plane, J, Lee, K, Waters, R, Tat Wong, K, Lagadec, E, Gobrecht, D, Yates, J A, Price, D, Cannon, E, Bolte, J, De Ceuster, F, Nuth, J, Sindel, J P, Kee, D, Gray, M & El Mellah, I 2021, ' ATOMIUM: The astounding complexity of the near circumstellar environment of the M-type AGB star R Hydrae I. Morpho-kinematical interpretation of CO and SiO emission ', Astronomy and Astrophysics, vol. 651, A82 . https://doi.org/10.1051/0004-6361/202140512
Astronomy & Astrophysics, 651:A82. EDP Sciences
Astronomy & Astrophysics
Evolved low- to intermediate-mass stars are known to shed their gaseous envelope into a large, dusty, molecule-rich circumstellar nebula which typically develops a high degree of structural complexity. Most of the large-scale, spatially correlated st
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a007303154375a00a21973fc0cf6159b
https://eprints.whiterose.ac.uk/172647/1/R_Hya_v08.pdf
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ATOMIUM: A high-resolution view on the highly asymmetric wind of the AGB star pi(1)Gruis: I. First detection of a new companion and its effect on the inner wind
Autor: Marie Van de Sande, Eric Lagadec, Dylan Kee, Raghvendra Sahai, Holger S. P. Müller, Alain Baudry, Albert A. Zijlstra, Joe Nuth, D. Gobrecht, Malcolm D. Grey, Tom J. Millar, Ileyk El Mellah, Alex de Koter, Kelvin Lee, Elaine Gottlieb, Iain McDonald, E. Cannon, Bannawit Pimpanuwat, M. Montargès, K. T. Wong, Manali Jeste, Karl M. Menten, Fabrice Herpin, Jeremy Yates, Ward Homan, Jan Philip Sindel, Frederik De Ceuster, Anita M. S. Richards, Sandra Etoka, Taissa Danilovich, Sofia Wallström, J. Bolte, John M. C. Plane, Daniel J. Price, Leen Decin, Carl A. Gottlieb, Pierre Kervella, Rens Waters
Publikováno v: Homan, W, Montarges, M, Pimpanuwat, B, Richards, A M S, Wallstrom, S H J, Kervella, P, Decin, L, Zijlstra, A, Danilovich, T, Koter, A D, Menten, K, Sahai, R, Plane, J, Lee, K, Waters, R, Baudry, A, Wong, K T, Millar, T J, Sande, M V D, Lagadec, E, Gobrecht, D, Yates, J, Price, D, Cannon, E, Bolte, J, Ceuster, F D, Herpin, F, Nuth, J, Sindel, J P, Kee, D, Grey, M D, Etoka, S, Jeste, M, Gottlieb, C A, Gottlieb, E, McDonald, I, Mellah, I E & Muller, H S P 2020, ' Atomium : A high-resolution view on the highly asymmetric wind of the AGB star Pi1 Gruis. I. First detection of a new companion and its effect on the inner wind ', A&A, vol. 644, A61 . https://doi.org/10.1051/0004-6361/202039185
Astronomy & Astrophysics
Astronomy & Astrophysics, 644:A61. EDP Sciences
The nebular circumstellar environments of cool evolved stars are known to harbour a rich morphological complexity of gaseous structures on different length scales. A large part of these density structures are thought to be brought about by the intera
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa4021904217b6313b9cbc6392611276
https://lirias.kuleuven.be/handle/123456789/667469
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A detailed view on the circumstellar environment of the M-type AGB star EP Aquarii I. High-resolution ALMA and SPHERE observations
Autor: Miguel Montargès, Anita M. S. Richards, Ward Homan, E. Cannon, Leen Decin, Tom J. Millar
Publikováno v: Astronomy & Astrophysics
Cool evolved stars are known to be significant contributors to the enrichment of the interstellar medium through their dense and dusty stellar winds. High resolution observations of these outflows have shown them to possess high degrees of morphologi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b9b11e45d32a3a93efa000dcbd6f06c
https://lirias.kuleuven.be/handle/123456789/661448
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