Nature Astronomy最新文献

Water D/H in 3I/ATLAS as a probe of formation conditions in another planetary system 水D/H在3I/ATLAS中作为另一行星系统形成条件的探测

IF 14.1 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-23 DOI: 10.1038/s41550-026-02850-5

Luis E. Salazar Manzano, Teresa Paneque-Carreño, Martin A. Cordiner, Edwin A. Bergin, Hsing Wen Lin (林省文), Dariusz C. Lis, David W. Gerdes, Jennifer B. Bergner, Nicolas Biver, Dominique Bockelée-Morvan, Dennis Bodewits, Steven B. Charnley, Jacques Crovisier, Davide Farnocchia, Viviana V. Guzmán, Stefanie N. Milam, John W. Noonan, Anthony J. Remijan, Nathan X. Roth, John J. Tobin

{"title":"Water D/H in 3I/ATLAS as a probe of formation conditions in another planetary system","authors":"Luis E. Salazar Manzano, Teresa Paneque-Carreño, Martin A. Cordiner, Edwin A. Bergin, Hsing Wen Lin \u0000 (林省文), Dariusz C. Lis, David W. Gerdes, Jennifer B. Bergner, Nicolas Biver, Dominique Bockelée-Morvan, Dennis Bodewits, Steven B. Charnley, Jacques Crovisier, Davide Farnocchia, Viviana V. Guzmán, Stefanie N. Milam, John W. Noonan, Anthony J. Remijan, Nathan X. Roth, John J. Tobin","doi":"10.1038/s41550-026-02850-5","DOIUrl":"https://doi.org/10.1038/s41550-026-02850-5","url":null,"abstract":"Water reservoirs in the Solar System exhibit a deuterium enrichment that links back to the physical environment at the time of stellar birth. Gas-phase and ice-grain deuterium enrichments occur through chemical processes that operate at low temperatures (<30 K) pointing towards an origin in the prestellar molecular cloud or in the outer parts of the protoplanetary disk. However, not all stars are born in environments similar to our Sun, nor do their subsequent evolutionary histories follow the same path. These environmental differences can be traced by the water deuterium-to-hydrogen (D/H) ratio. Here we use ALMA observations of the interstellar comet 3I/ATLAS to constrain the water D/H ratio in extrasolar cometary material. With a water D/H value of ({[{rm{D}}/{rm{H}}]}_{{{rm{H}}}_{2}{rm{O}}} > 6.6times 1{0}^{-3}), 3I/ATLAS shows a deuterium enrichment exceeding Earth’s ocean value by more than a factor of about 40 and typical Solar System cometary values by more than a factor of about 30. The elevated deuterium enrichment points to water that formed under colder, less irradiated conditions and from less thermally processed material, consistent with an origin in a planetary system that formed under different physical and chemical conditions than our own.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"17 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147734040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reply to: Challenges to detecting present-day volcanism on Venus 回复：探测金星上现今火山活动的挑战

IF 14.3 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-22 DOI: 10.1038/s41550-026-02833-6

Davide Sulcanese, Giuseppe Mitri, Marco Mastrogiuseppe

引用次数: 0

Self-consistent numerical simulations for the formation and dynamics of solar prominences 太阳日珥形成和动力学的自洽数值模拟

IF 14.1 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-22 DOI: 10.1038/s41550-026-02840-7

Lisa-Marie Zessner, Robert H. Cameron, Sami K. Solanki, Damien Przybylski

{"title":"Self-consistent numerical simulations for the formation and dynamics of solar prominences","authors":"Lisa-Marie Zessner, Robert H. Cameron, Sami K. Solanki, Damien Przybylski","doi":"10.1038/s41550-026-02840-7","DOIUrl":"https://doi.org/10.1038/s41550-026-02840-7","url":null,"abstract":"Solar prominences are cool and dense plasma structures floating in the hot solar corona. They are ubiquitous features in the solar atmosphere, but their formation mechanism is still unclear. Here we perform comprehensive fully three-dimensional numerical simulations of prominence formation including the physics necessary to describe all atmospheric layers of the sun. With appropriate initial conditions for the magnetic field, solar prominences form self-consistently in the simulations. The formation starts by the random ejection of a dense plasma seed from the chromosphere into the corona. Subsequently, the prominence is built up by a combination of plasma injections from the chromosphere and condensation of inflowing coronal plasma. The prominence properties qualitatively match those of observed prominences. Our findings demonstrate the importance of the dynamics at and below the solar surface in the formation and evolution of solar prominences. This suggests that subsurface dynamics should also be considered in the study of prominence eruptions, which can be associated with coronal mass ejections.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"17 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147734048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Super-size simulations for super-size surveys 超大规模调查的超大规模模拟

IF 14.3 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-22 DOI: 10.1038/s41550-026-02849-y

Lindsay Oldham

引用次数: 0

A spear through the outflows 一根矛穿过外流

IF 14.3 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-22 DOI: 10.1038/s41550-026-02853-2

Bokyoung Kim

引用次数: 0

γ marks the spot γ标记了这个点

IF 14.3 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-22 DOI: 10.1038/s41550-026-02852-3

Paul Woods

引用次数: 0

The Uranus system’s struggle for survival 天王星系统的生存斗争

IF 14.3 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-22 DOI: 10.1038/s41550-026-02851-4

Luca Maltagliati

引用次数: 0

Challenges to detecting present-day volcanism on Venus 探测金星现今火山活动的挑战

IF 14.3 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-22 DOI: 10.1038/s41550-026-02832-7

S. S. Bhiravarasu, J. Brossier, P. D’Incecco, J. Filiberto, P. G. Ford, G. Gallardo i Peres, I. Ganesh, J. B. Garvin, M. Ivanov, I. López, P. J. Mason

引用次数: 0

Towards a coordinated approach to LLMs in astronomy 迈向天文学法学硕士的协调方法

IF 14.3 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-22 DOI: 10.1038/s41550-026-02858-x

引用次数: 0

A jet bent by a stellar wind in the black hole X-ray binary Cygnus X-1 黑洞x射线双星天鹅座X-1中被恒星风弯曲的喷流

IF 14.1 1区物理与天体物理

Nature Astronomy Pub Date : 2026-04-16 DOI: 10.1038/s41550-026-02828-3

S. Prabu, J. C. A. Miller-Jones, A. Bahramian, V. Bosch-Ramon, S. Heinz, S. J. Tingay, C. M. Wood, A. J. Tetarenko, T. N. O’Doherty, V. Tudose

{"title":"A jet bent by a stellar wind in the black hole X-ray binary Cygnus X-1","authors":"S. Prabu, J. C. A. Miller-Jones, A. Bahramian, V. Bosch-Ramon, S. Heinz, S. J. Tingay, C. M. Wood, A. J. Tetarenko, T. N. O’Doherty, V. Tudose","doi":"10.1038/s41550-026-02828-3","DOIUrl":"https://doi.org/10.1038/s41550-026-02828-3","url":null,"abstract":"Jets provide an important channel for kinetic feedback from accreting black holes into their environment, without which models of the formation of large-scale structure in the Universe fail to reproduce the observed properties of galaxies. Hence, an accurate measurement of jet power is critical for understanding black hole growth through accretion and also for quantifying the impact of kinetic feedback. However, the absence of instantaneous jet power measurements has precluded direct comparisons with the accretion luminosity, forcing kinetic feedback models to rely on ad hoc assumptions about how much jet power is released per accreted amount of mass. Here using 18 years of high-resolution radio imaging, we report the detection of stellar wind-induced bending of the jets in the black hole X-ray binary Cygnus X-1. By modelling jet–wind interactions, we determine the current kinetic instantaneous power of the jet to be ({log }_{10}[{L}_{{rm{j}}{rm{e}}{rm{t}}},({{rm{erg}},{rm{s}}}^{-1})]=37.{3}_{-0.2}^{+0.1}), comparable with the bolometric X-ray luminosity. This result critically places prevailing assumptions about the energetics of black hole-powered jets in both galaxy formation simulations and in scaling models of black hole accretion on a firm empirical footing.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"126 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147709315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0