Nature Astronomy最新文献

{"title":"Lyman continuum escape during the onset of galactic winds in compact starbursts","authors":"Cody Carr,Renyue Cen,Stephan McCandliss,Jack Ford,Alberto Saldana-Lopez,Claudia Scarlata,Mason S. Huberty,Anne Jaskot,Sophia Flury,M. S. Oey,Ricardo O. Amorín,Sanchayeeta Borthakur,Matthew Haye,Timothy Heckman,Zhiyuan Ji,Lena Komarova,Alexandra Le Reste,Floriane Leclercq,Rui Marques-Chaves,Leo Michel-Dansac,Göran Östlin,Swara Ravindranath,Michael J. Rutkowski,Daniel Schaerer,Trinh Thuan,Eros Vanzella,Bingjie Wang,Xinfeng Xu","doi":"10.1038/s41550-026-02999-z","DOIUrl":"https://doi.org/10.1038/s41550-026-02999-z","url":null,"abstract":"","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"51 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149210502","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}

{"title":"A spatial map of the atmospheric limb of a hot Jupiter","authors":"Lili Alderson,Hannah R. Wakeford,David Grant,Nikole K. Lewis,Avinash Verma,Jayesh Goyal,Mark Hammond,Daniel Valentine,Natalie H. Allen,Ana Glidden,Amélie Gressier,Jingcheng Huang,Maura Lally,Dana R. Louie,Jacob Lustig-Yaeger,Cathal Maguire,Elijah Mullens,Kristin S. Sotzen,Jeff A. Valenti,Roeland P. van der Marel,Tiffany Kataria","doi":"10.1038/s41550-026-02986-4","DOIUrl":"https://doi.org/10.1038/s41550-026-02986-4","url":null,"abstract":"Abstract Planets are inherently three-dimensional objects shaped by their thermal structure and dynamics. Observations of transiting exoplanets have begun to uncover this three-dimensional nature, with JWST measuring their dayside atmosphere structure with eclipse mapping and exploring spectroscopic asymmetries in the limbs of planets during transit. Here we apply the novel transmission strings mapping method to the hot Jupiter WASP-17 b. With this method, we are not only able to extract hemispheric limb asymmetries from east-to-west, but can also map equator-to-pole variations around the transmitting atmosphere as a function of angle, spanning 0.6–12 μm. We find a clear transition in the thermal scale height around the limb of the atmosphere, with an approximately 650 K temperature difference between the morning ( $$85{8}_{-233}^{+434},{mathrm{K}}$$ 85 8 − 233 + 434 K ) and evening $$1{,}52{2}_{-114}^{+116},{mathrm{K}}$$ 1 , 52 2 − 114 + 116 K ). These results are consistent with both nightside emission and dayside eclipse mapping measurements, and represent a fully comprehensive set of observations for a transiting exoplanet. We are also able to constrain the abundances of H 2 O and CO 2 to constant values around the limb, providing observational constraints for results from global circulation models. The transmission string technique, combined with the outstanding observability of WASP-17 b, pushes the study of exoplanet atmospheres further into a three-dimensional understanding of hot Jupiter dynamics and chemistry.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"37 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149208803","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}

{"title":"A ∧-like metallicity profile in the disk of the Sagittarius dwarf galaxy","authors":"Zixi Guo,Xiang-Xiang Xue,Jiang Chang,Chao Liu,Zehao Zhong,Bingqing Zhang,Ruizhi Zhang,Shi Shao,Gang Zhao,Zhuohan Li,Xi Kang,Jie Wang,Jianhui Lian,Haining Li,Ruizheng Jiang","doi":"10.1038/s41550-026-02996-2","DOIUrl":"https://doi.org/10.1038/s41550-026-02996-2","url":null,"abstract":"","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"2 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149208802","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}

{"title":"Two families of multi-planet systems with distinct architectures and stellar hosts","authors":"Diego Turrini,Camilla Danielski,Danae Polychroni,Robert Przyłuski,Hans Rickman,Diego Bossini,J. M. Diederik Kruijssen,Angelo Zinzi,Simon Goodwin,Steven N. Longmore,Mélanie Chevance,Lise Ramambason","doi":"10.1038/s41550-026-02990-8","DOIUrl":"https://doi.org/10.1038/s41550-026-02990-8","url":null,"abstract":"Abstract The rapidly growing census of exoplanets now includes over a thousand multi-planet systems, revealing architectures that span more than four orders of magnitude in mass and five in orbital scale. Explaining the origin of this striking diversity remains a central challenge for planet formation theory, compounded by observational biases that limit access to Solar System-like regimes. Here we introduce architecture-agnostic metrics to uniformly analyse four independently defined samples of multi-planet systems, uncovering unifying patterns across their diversity. We identify a clear bimodality in system masses, dividing known architectures into two distinct families. The lower-mass family, predominantly hosted by subsolar-to-solar stars, exhibits tightly packed configurations with mass distributions consistent with the ‘peas-in-a-pod’ pattern and modal dynamical excitation comparable with that of the Solar System. By contrast, the high-mass family forms in metal-rich environments around solar-to-supersolar stars, displays gravitationally compact architectures and is an order of magnitude dynamically hotter than both the Solar System and the lower-mass counterparts. Their high level of dynamical excitation points to violent evolutionary pathways driven by global instabilities and planet–planet scattering. Together, these results show that the architectures of planetary systems are born from the combined influence of formation processes and host star properties. Signatures of these roots are preserved across the post-formation dynamical evolution that reshaped most known multi-planet systems.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149208858","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}

{"title":"Transitioning from ADS to SciX to serve twenty-first century astronomy","authors":"Jennifer Lynn Bartlett, Suze Kundu, Alberto Accomazzi, Michael J. Kurtz","doi":"10.1038/s41550-026-02997-1","DOIUrl":"10.1038/s41550-026-02997-1","url":null,"abstract":"For decades, the NASA Astrophysics Data System (ADS) has been the foundational digital library for astronomy. As ADS now becomes the Science Explorer (SciX), the team prioritizes preserving this trusted experience while increasing their support for space and Earth sciences more broadly, without diluting its commitment to astrophysics.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 10","pages":"1414-1417"},"PeriodicalIF":15.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177768","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}

{"title":"Farewell NASA ADS","authors":"","doi":"10.1038/s41550-026-03009-y","DOIUrl":"10.1038/s41550-026-03009-y","url":null,"abstract":"After more than 33 years, NASA’s Astrophysics Data System will close its virtual doors in November 2026 and be replaced by its much-expanded successor, Science Explorer. While the core functionality and astrophysics database will remain the same, SciX will extend its relevance to a broader range of scientists.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 10","pages":"1411-1411"},"PeriodicalIF":15.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41550-026-03009-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fostering a culture of technology transfer in astrophysics","authors":"P. B. Tissera, R. J. Assef, S. Prat Letelier, C. San Martin, R. Finger, J. S. Jenkins, D. Minniti","doi":"10.1038/s41550-026-02994-4","DOIUrl":"10.1038/s41550-026-02994-4","url":null,"abstract":"In Chile, the Center for Astrophysics and Associated Technologies has been working towards turning scientific investment into economic success for two decades, through the transfer of technology and techniques from astrophysics to industry. Many successful projects provide tangible examples of the real-world benefits of astronomy.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 10","pages":"1420-1422"},"PeriodicalIF":15.2,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150567","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}

{"title":"The formation of merging black holes via stable mass transfer in massive binary stars","authors":"Xiao-Tian Xu,Norbert Langer,Jakub Klencki,Chen Wang,Xiang-Dong Li","doi":"10.1038/s41550-026-03000-7","DOIUrl":"https://doi.org/10.1038/s41550-026-03000-7","url":null,"abstract":"","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"52 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150563","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}

{"title":"On the coronal origin of magnetic switchbacks in the solar wind","authors":"Jesse T. Coburn, Stephanie L. Yardley, Nawin Ngampoopun, Ryan Dewey, Yeimy J. Rivera, Rossana De Marco, Daniel Verscharen, Christopher J. Owen, Gabriel H. H. Suen, Benjamin Alterman, Deborah Baker, Andrew Fazakerley, Antoinette B. Galvin, Jiansen He, Timothy S. Horbury, Chuanpeng Hou, Charalambos Ioannou, Lynn M. Kistler, Susan T. Lepri, Stefano Livi, Philippe Louarn, Georgios Nicolaou, Jim M. Raines, Alexis P. Rouillard","doi":"10.1038/s41550-026-02928-0","DOIUrl":"10.1038/s41550-026-02928-0","url":null,"abstract":"The Sun continuously releases a stream of charged particles known as the solar wind, threaded by magnetic field lines that occasionally fold back on themselves in sharp reversals called magnetic switchbacks. These structures are frequently observed by spacecraft near the Sun, but their formation mechanism remains an open question. Using measurements from Solar Orbiter at 0.55 AU, we report heavy ion observations within a magnetic switchback that provide direct evidence of its solar source. Elevated charge-state ratios of oxygen and carbon, combined with a depletion of helium relative to protons, indicate that the switchback plasma originated from hot, closed coronal loop structures. A semi-empirical coronal model, constrained by electron temperature and density measurements from the Solar Dynamics Observatory, traces the ion signatures to either a coronal hole boundary or loops within the coronal hole, implicating the source mechanism as interchange reconnection, where closed loops reconnect with open magnetic field and eject plasma. The proton velocity and magnetic field fluctuations of the switchback are in accordance with an outward-propagating Alfvén wave. These findings suggest that interchange reconnection and wave or turbulence mechanisms jointly govern switchback origin and propagation, respectively. Most importantly, we show that switchbacks preserve measurable signatures, carrying information about the physical processes that heat the solar atmosphere and accelerate the solar wind. Solar Orbiter’s detection of the ion composition of a magnetic switchback reveals its origin in hot coronal loops, implicating interchange reconnection as the release mechanism of the solar wind plasma, where it then propagates as an Alfvén wave.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 10","pages":"1454-1466"},"PeriodicalIF":15.2,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41550-026-02928-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reduced incidence of little red dots at z < 3 based on number density and halo mass evolution","authors":"Chenxuan Zhang,Huanian Zhang,Qingwen Wu,Luis C. Ho,Jian-Min Wang","doi":"10.1038/s41550-026-03001-6","DOIUrl":"https://doi.org/10.1038/s41550-026-03001-6","url":null,"abstract":"","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150564","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}