Leiden Preprints

arXiv:2608.27913v1 [pdf]
Title: Dense Cores in the Vicinity of an HII Region
Authors: Ruofei Zhang, Xing Lu, Jingwen Wu, Sihan Jiao, Hauyu Baobab Liu, Guang-Xing Li, Roberto Galván-Madrid, Aiyuan Yang, Siju Zhang, Shanghuo Li, Fengwei Xu, Xindi Tang, Yu Cheng, Weiyuan Zhang, Andrés E. Guzmán, Yuxin Lin, Yuhua Liu, Qizhou Zhang, Patricio Sanhueza, Ke Wang, Siyi Feng, Linjing Feng, Fangyuan Deng, Hao Ruan, Yuanzhen Xiong, Yuxiang Liu
Comments: Accepted for publication in Astronomy & Astrophysics
Subjects: astro-ph.GA
arXiv:2608.26798v1 [pdf]
Title: Alkali lines at extreme densities and their impact on giant planet interior structure
Authors: Louis Siebenaler, Nicole F. Allard, Esther van Dijk, Yamila Miguel
Comments: Accepted for publication in A&A, 14 pages, 11 figures
Subjects: astro-ph.EP
arXiv:2608.27691v1 [pdf]
Title: Spin-disc misalignment drives periodic accretion and pulse profile asymmetry in X-ray pulsars
Authors: A. A. Mushtukov, V. Ganesh, S. S. Tsygankov, S. Portegies Zwart, A. Palyam
Comments: accepted for publication in MNRAS, 14 pages, 7 figures
Subjects: astro-ph.HE, astro-ph.SR
arXiv:2608.27560v1 [pdf]
Title: Resolved Dust in $z\approx1$ Galaxies with JWST/MIRI MRS: Survey Description and First View on PAHs, Mid-IR Atomic Emission, and Warm H$_2$
Authors: Wuji Wang, Andreas L. Faisst, Thomas S. -Y. Lai, Kyle Finner, Jed McKinney, Andrew J. Battisti, Irene Shivaei, Leindert A. Boogaard, Daizhong Liu, Yu-Heng Lin, Lun-Jun Liu, Georgios Magdis, Vincenzo Mainieri, Alexander Rodriguez, John D. Silverman, Zhaoxuan Liu, Minju M. Lee, Ghassem Gozaliasl, Maximilien Franco
Comments: Accepted for publication in ApJ; main text 20 pages, 12 figures, 2 Tables
Subjects: astro-ph.GA
arXiv:2608.26461v1 [pdf]
Title: A radio continuum view of Stephan's Quintet: age, dynamics and origin of the shock
Authors: K. Rajpurohit, E. O'Sullivan, G. Schellenberger, A. Botteon, R. J. van Weeren, U. Lisenfeld, J. M. Vrtilek, L. P. David, S. Giacintucci, W. Forman, C. Jones, C. K. Xu, A. Togi
Comments: 25 pages, 13 Figures, Accepted for publication in ApJ
Subjects: astro-ph.GA
arXiv:2608.26275v1 [pdf]
Title: The origin of the stellar mass-size relation of satellite galaxies in the COLIBRE simulations
Authors: Bruno M. Celiz, Julio F. Navarro, Joop Schaye, Mario G. Abadi, Alejandro Benitez-Llambay, Evgenii Chaikin, Carlos S. Frenk, Filip Huško, Aaron D. Ludlow, Sylvia Ploeckinger, Alexander J. Richings, Matthieu Schaller
Comments: 12 pages, 8 figures. Submitted to Astronomy & Astrophysics (A&A)
Subjects: astro-ph.GA
arXiv:2608.26097v1 [pdf]
Title: The Isotopic and Elemental Abundances of Planet-Host Star TRAPPIST-1
Authors: Darío González Picos, Ian J. M. Crossfield, David Coria, Joshua Lothringer, Eric Gaidos, Elisabeth A. C. Mills, Sam de Regt, Donatella Romano, Ignas Snellen
Comments: 20 pages, 10 figures, accepted for publication in The Astrophysical Journal (ApJ)
Subjects: astro-ph.SR, astro-ph.EP
arXiv:2608.25982v1 [pdf]
Title: REBELS-25: multi-phase morphology and kinematics at z = 7.31
Authors: Lucie E. Rowland, Hiddo S. B. Algera, Jacqueline Hodge, Mauro Stefanon, Rychard Bouwens, Manuel Aravena, Lucy Astles, Karin Cescon, Elisabete da Cunha, Ilse de Looze, Andrea Ferrara, Rebecca Fisher, Yoshinobu Fudamoto, Thomas Herard-Demanche, Hanae Inami, Mahsa Kohandel, Lena Komarova, Andrés Laza Ramos, Themiya Nanayakkara, Katherine Ormerod, Andrea Pallottini, Siân Phillips, Sander Schouws, Piyush Sharda, Renske Smit, Paul van der Werf
Comments: 28 pages, 11 figures. Submitted to MNRAS
Subjects: astro-ph.GA, astro-ph.CO
arXiv:2608.24678v1 [pdf]
Title: Spatially resolved molecular gas conditions in the circumnuclear disc of 3C 84
Authors: Bin Jia, Tom Oosterloo, Serena Viti, Raffaella Morganti
Comments: No journal ref found
Subjects: astro-ph.GA
arXiv:2608.24445v1 [pdf]
Title: Forward modelling coronagraphic images with a fully physical, differentiable digital twin of MagAO-X: first laboratory results
Authors: Matthijs Mars, Sebastiaan Y. Haffert, Louis Desdoigts, Joseph D. Long, Rico Landman, Jared R. Males, Laird M. Close, Kyle Van Gorkom, Olivier Guyon, Alexander D. Hedglen, Sandrine Juillard, Jennifer Lumbres, Lauren Schatz
Comments: No journal ref found
Subjects: astro-ph.IM
arXiv:2608.24442v1 [pdf]
Title: NEXT: The Netherlands EXoplanet Testbed I. Goals and opto-mechanical design
Authors: Rico Landman, Sebastiaan Haffert, Louis Desdoigts, Matthijs Mars, Dhwanil Patel, Daniel Smith, Remko Stuik, Adam Taras, Elena Tonucci, Yinzi Xin
Comments: 14 pages, 7 figures, SPIE Astronomical Telescopes + Instrumentation 2026
Subjects: astro-ph.IM
arXiv:2608.24438v1 [pdf]
Title: No need to modulate: On-sky results of a Neural Network enhanced pyramid wavefront sensor and prospects for the ELTs
Authors: Rico Landman, Liam Koning, Sebastiaan Y. Haffert, Joseph D. Long, Jared R. Males, Matthijs Mars, Laird M. Close, Olivier Guyon, Warren B. Foster, Kyle Van Gorkom, Alexander D. Hedglen, Parker T. Johnson, Maggie Y. Kautz, Jay K. Kueny, Jialin Li, Joshua Liberman, Miles Lucas, Jennifer Lumbres, Eden A. McEwen, Avalon McLeod, Lauren Schatz, Elena Tonucci, Katie Twitchell
Comments: 14 pages, 12 figures, SPIE Astronomical Telescopes + Instrumentation 2026
Subjects: astro-ph.IM
arXiv:2608.24343v1 [pdf]
Title: Digging dark holes on-sky with the Self-Coherent Camera: Preliminary results
Authors: Elena Tonucci, Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close, Kyle van Gorkom, Olivier Guyon, Alexander D. Hedglen, Parker T. Johnson, Maggie Y. Kautz, Jay K. Kueny, Jialin Li, Joshua Liberman, Joseph D. Long, Jennifer Lumbres, Matthijs Mars, Eden A. McEwen, Avalon McLeod, María Eugenia Redondo González, Lauren Schatz, Katie Twitchell
Comments: 6 pages, 2 figures, SPIE Astronomical Telescopes + Instrumentation 2026
Subjects: astro-ph.IM
arXiv:2608.24339v1 [pdf]
Title: On-sky demonstration of self-learning predictive control with MagAO-X
Authors: Sebastiaan Y. Haffert, Jared R. Males, Parker T. Johnson, Laird M. Close, Olivier Guyon, Jay Kueny, Joshua Liberman, Joseph D. Long, Miles Lucas, Eden McEwen, Tiffany Nguyen, Adam K. Taras, Kyle Van Gorkom, Maggie Kautz, Katie Twitchell, Lauren Schatz
Comments: Submitted to SPIE 2026 Astronomical Telescopes and Instruments. Proc. SPIE 14150, Adaptive Optics Systems X, 1415078 (19 Aug 2026);
Subjects: astro-ph.IM
arXiv:2608.24333v1 [pdf]
Title: Sub-diffraction-limited coronagraphic imaging with nano-printed PIAACMC phase masks
Authors: Elena Tonucci, Sebastiaan Y. Haffert, Warren B. Foster, Jared R. Males, Olivier Guyon, Laird M. Close, Kyle van Gorkom, Alexander D. Hedglen, Parker T. Johnson, Maggie Y. Kautz, Jay K. Kueny, Rico Landman, Jialin Li, Joshua Liberman, Joseph D. Long, Miles Lucas, Jennifer Lumbres, Matthijs Mars, Eden A. McEwen, Avalon McLeod, Tiffany Nguyen, Logan A. Pearce, María Eugenia Redondo González, Lauren Schatz, Katie Twitchell
Comments: 8 pages, 5 figures, SPIE Astronomical Telescopes + Instrumentation 2026
Subjects: astro-ph.IM, astro-ph.EP, astro-ph.SR
arXiv:2608.24324v1 [pdf]
Title: The final design of GMagAO-X: the wavefront sensing and control (WFS&C) architecture of GMagAO-X
Authors: Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close, Olivier Guyon, Olivier Durney, Maggie Kautz, Liam Koning, Louis Desdoigts, Matthijs Mars, Elena Tonucci, Adam K. Taras, Yinzi Xin, Rico Landman
Comments: Submitted to SPIE Astronomical Telescopes and Instruments 2026. Proc. SPIE 14150, Adaptive Optics Systems X, 141502Y (19 Aug 2026)
Subjects: astro-ph.IM
arXiv:2608.24315v1 [pdf]
Title: Quantum-optimal instruments for high-contrast imaging with multi-plane light converters
Authors: Sebastiaan Y. Haffert, Yinzi Xin, Rico Landman
Comments: Submitted to SPIE Astronomical Telescopes and Instruments. Proc. SPIE 14154, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VII, 1415419 (21 Aug 2026)
Subjects: astro-ph.IM, physics.optics
arXiv:2608.24311v1 [pdf]
Title: The Hot Neptune Initiative (HONEI) III. An ultra-hot super Neptune orbiting the metal-rich subgiant star TOI-5646: the largest host for a desert dweller
Authors: L. Mancini, F. Manni, D. Kubyshkina, E. A. van Dijk, L. Naponiello, M. Damasso, V. D'Orazi, K. Biazzo, A. V. Bonomo, L. Fossati, Y. Miguel, J. de Leon, M. E. Everett, W. Fong, A. Fukui, D. Gandolfi, S. B. Howell, D. W. Latham, M. Lopez-Morales, P. MacQueen, F. Murgas, N. Narita, E. Palle, M. Pinamonti, T. Pugh, A. Sozzetti, S. Vissapragada, S. W. Yee
Comments: 18 pages, 16 figures. Accepted for publication in Astronomy & Astrophysics
Subjects: astro-ph.EP
arXiv:2608.24309v1 [pdf]
Title: A "MeerKAT-meets-LOFAR" Study of 2A 0335+096: Discovery of a Complex 500 kpc Radio Halo in a Disturbed Cool-Core Cluster
Authors: C. J. Riseley, R. J. van Weeren, L. Lovisari, R. Timmerman, A. Botteon, A. Bonafede, A. Ignesti, N. Biava, G. Brunetti, B. Colquhoun, Y. Perrott, T. Vernstrom
Comments: Accepted for publication in A&A. Main article is 13 pages, appendix 3 pages
Subjects: astro-ph.CO
arXiv:2608.24308v1 [pdf]
Title: The Photonic Lantern Nuller: from concept to laboratory and on-sky demonstrations
Authors: Yinzi Xin, Nemanja Jovanovic, Dimitri Mawet, Daniel Echeverri, Yoo Jung Kim, Jonathan Lin, Julien Lozi, Sebastien Vievard, Olivier Guyon, Grace Piroscia, Vincent Deo, Sergio Leon-Saval, Rodrigo Amezcua-Correa, Stephanos Yerolatsitis, Sebastiaan Y. Haffert, Michael P. Fitzgerald, Pradip Gatkine, Suvinay Goyal, Barnaby Norris, Garreth Ruane, Steph Sallum
Comments: 9 pages, 7 figures, proceedings of SPIE Astronomical Telescopes + Instrumentation 2026, 14148-61
Subjects: astro-ph.IM
arXiv:2608.24289v1 [pdf]
Title: Demonstration of simultaneous PIAA- coronagraphy and wavefront sensing using a single metasurface-based focal-plane optic
Authors: Dhwanil Patel, Sebastiaan Y. Haffert, Skyler Palatnick, Adam Taras, Maxwell A. Millar-Blanchaer, Matthijs Mars, Elena Tonucci, Jared R. Males, Laird M. Close, Joshua Liberman, Warren B. Foster, Kyle Van Gorkom, Olivier Guyon, Alexander D. Hedglen, Parker T. Johnson, Maggie Y. Kautz, Jay K. Kueny, Jialin Li, Joseph D. Long, Jennifer Lumbres, Eden A. McEwen, Avalon McLeod, Lauren Schatz, Katie Twitchell, Robert J. Harris, Viktoria Kutnohorsky
Comments: No journal ref found
Subjects: astro-ph.IM
arXiv:2608.23729v1 [pdf]
Title: An analysis of the Herbig star population and their protoplanetary disks within 1 kpc
Authors: L. M. Stapper, M. Vioque, A. J. Winter, D. J. Wilner, J. P. Williams, M. Benisty, A. S. Booth, S. L. Grant, M. R. Hogerheijde
Comments: Accepted for publication in Astronomy and Astrophysics. 19 pages, 11 figures, plus appendices
Subjects: astro-ph.EP, astro-ph.GA, astro-ph.SR
arXiv:2608.23558v1 [pdf]
Title: The descendants of $z \gtrsim 10$ JWST galaxies in the COLIBRE simulations
Authors: Xu Zhao, Carlos S. Frenk, Andrew Pontzen, Kyle A. Oman, Evgenii Chaikin, Isabel Santos-Santos, Shengdong Lu, Joop Schaye, Alejandro Benítez-Llambay, Filip Huško, Alexander J. Richings, Matthieu Schaller
Comments: 16Pages, 15 figures, submitted to MNRAS
Subjects: astro-ph.GA
arXiv:2608.23464v1 [pdf]
Title: Fragmentation and tidal locking in young quadruple systems
Authors: Xunchuan Liu
Comments: first version
Subjects: astro-ph.GA
arXiv:2608.21138v1 [pdf]
Title: The curious case of HCO$^+$: Extreme abundances under extreme conditions
Authors: Katarzyna M. Dutkowska, Bin Jia, Serena Viti, Tobias M. Dijkhuis, Gijs Vermariën
Comments: Accepted for publication in A&A. 13 pages, 16 figures
Subjects: astro-ph.GA
arXiv:2608.20898v1 [pdf]
Title: EXPO: a quantum leap in fast, wide-band X-ray polarimetry for astrophysics
Authors: Paolo Soffitta, Sebastien Guillot, Ian Hutchinson, Fabio Muleri, Mark Pearce, Andrea Santangelo, Daniele Spiga, Ivan Agudo, Gino Bruno Amata, Jaroslaw Bakala, Elisabetta Baracchini, Stefano Basso, Jorg Bayer, Benedikt Bergmann, Jaroslaw Borek, Enrico Bozzo, Soren Krinstian Brandt, Carl Budtz-Jorgensen, Vadim Burwitz, Stefano Cesare, Jerome Chenevez, Enrico Costa, Elisa Costantini, Vincenzo Cotroneo, Walter Cugno, Riccardo Ferrazzoli, Nicolas De Angelis, Desiree Della Monica Ferreira, Klaus Desch, Giorgio Dho, Giuseppe Di Persio, Sergio Fabiani, Davide Fiorina, Szymon Gburek, Markus Gruber, Allan Hornstrup, Jennifer Jones, Jochen Kaminski, Mozsi Kiss, Irfan Kuvvetli, Carlo Lefevre, Hannah Lerman, Honghui Liu, Pasqualino Loffredo, Niels Lund, Hemanth Manikantan, Melissa McHugh, Paul O'Brien, Stephane Paltani, Giovanni Pareschi, Stefano Piacentini, Vladislavs Plesanovs, John Rankin, Ajay Ratheesh, Selina Ringsborg Howalt Owe, Alda Rubini, Miguel Andres Sanchez Carrasco, Emanuele Scalise, Konrad R. Skup, Gianpiero Tagliaferri, Chris Tenzer, Berend Winter, Silvia Zane, Lorenzo Amati, Alessio Anitra, Maria Cristina Baglio, Thibault Barnouin, Stefano Bianchi, Fabrizio Bocchino, Markus Boettcher, Niccolo Bucciantini, Sara Capecchiacci, Fiamma Capitanio, Martina Cardillo, Eugene Churazov, Stefano Covino, Filippo D'Ammando, Laura Di Gesu, Alessandro Di Marco, Tiziana Di Salvo, Michal Dovciak, Lorenzo Ducci, Hua Feng, Giorgio Galanti, Giancarlo Ghirlanda, Vittoria Elvezia Gianolli, Andrea Gnarini, Emanuele Greco, Jeremy Heyl, Adam Ingram, Svetlana Jorstad, Philip Kaaret, Ildar Khabibullin, Fabian Kislat, Henric Krawczynski, Josefin Larsson, Ioannis Liodakis, Frederic Marin, Andrea Marinucci, Lorenzo Marra, Alan Marscher, Herman Marshall, Giorgio Matt, Marco Miceli, Riccardo Middei, Romana Mikusincova, Alexander Mushtukov, Kirpal Nandra, Lara Nava, Giuseppe Maria Oppedisano, Salvatore Orlando, Simone Pagliarella, Alessandro Papitto, Pierre-Olivier Petrucci, Oleh Petruk, Jakub Podgorny, Juri Poutanen, Arne Rau, Agata Roszanska, Felix Ryde, Vincenzo Sapienza, Patrick Slane, James Steiner, Valery Suleimanov, Jiri Svoboda, Daniele Tagliacozzo, Antonella Tarana, Fabrizio Tavecchio, Roberto Taverna, Francesco Tombesi, Sergey Tsygankov, Youli Tuo, Roberto Turolla, Francesco Ursini, Alexandra Veledina, Jacco Vink, Martin C. Weisskopf, Fei Xie, Haocheng Zhang, Menglei Zhou
Comments: 21 pages; 10 figures, 6 tables, SPIE Proceedings Astronomical Telescope + Instrumentation 2026: Ultraviolet to Gamma-rays Conference, Copenaghen, 5-10 July 2026
Subjects: astro-ph.IM, astro-ph.HE
arXiv:2608.19409v1 [pdf]
Title: ADORA: a differentiable optical modeling and astrometric retrieval framework for SHERA
Authors: Dylan McKeithen, Stuart Shaklan, Gautam Vasisht, Joe Green, Rhonda Morgan, Louis Desdoigts, Peter Tuthill
Comments: Submitted to Proceedings of SPIE, Astronomical Telescopes + Instrumentation 2026
Subjects: astro-ph.IM
arXiv:2608.19007v1 [pdf]
Title: The progenitors of $z\gtrsim10$ JWST galaxies in the COLIBRE simulations
Authors: Evgenii Chaikin, Andrew Pontzen, Carlos S. Frenk, Joop Schaye, Shengdong Lu, Robert A. Crain, Anna Durrant
Comments: 27 pages, 18 figures; submitted to MNRAS
Subjects: astro-ph.GA
arXiv:2608.18823v1 [pdf]
Title: Automatically distinguishing Rubin transients from AGN using variability metrics
Authors: Dylan Magill, Matt Nicholl, Philip Wiseman, Charlotte R. Angus, Paige Ramsden, Christopher Frohmaier, Sjoert van Velzen, Vysakh Anilkumar, Jaimee Greenwood, Joshua G. Weston
Comments: No journal ref found
Subjects: astro-ph.HE, astro-ph.CO
arXiv:2608.18212v1 [pdf]
Title: Quasar Impostors: Two Extremely UV-Bright ($M_{\rm UV}\approx-23.5$) Reionisation-Epoch Galaxies Powered by Very Massive Stars
Authors: Daming Yang, Joseph F. Hennawi, Sarah E. I. Bosman, Frederick B. Davies, Rychard Bouwens, Timo Kist, Eduardo Bañados, Jiamu Huang, Alice E. Shapley, Marianne Vestergaard, Hiddo S. B. Algera, Silvia Belladitta, Anna-Christina Eilers, Xiaohui Fan, Francesco Guarneri, Xiangyu Jin, Romain A. Meyer, Elia Pizzati, Huub Röttgering, Jan-Torge Schindler, Mauro Stefanon, Feige Wang, Jinyi Yang
Comments: 18 figures, 4 tables. Submitted
Subjects: astro-ph.GA, astro-ph.SR
arXiv:2608.17380v1 [pdf]
Title: Candidates for the most [$O_{III}$] $\lambda5007$-luminous planetary nebula in the Milky Way. I. Integrated light properties of NGC 6572, NGC 6884, and M 1-71
Authors: Azlizan A. Soemitro, Martin M. Roth, Jeremy R. Walsh, Ana Monreal-Ibero, Brigitte G. A. Pruijt, Nicholas Chornay
Comments: 21 pages, 10 figures, accepted in A&A
Subjects: astro-ph.GA, astro-ph.SR
arXiv:2608.17348v1 [pdf]
Title: The Roman Coronagraph Community Participation Program: early calibration plan and pilot observation of a companion
Authors: Julien H. Girard, Eric Cady, Neil T. Zimmerman, Clarissa R. Do Ó, Jingwen Zhang, Guillermo Gonzalez, Bijan Nemati, Vanessa P. Bailey, Alexis Lau, Sophie Noiret, John Krist, Julia Milton, Marie Ygouf, Ramya M. Anche, Schuyler Wolff, Justin Hom, Amanda Chavez, Jason J. Wang, Maxwell A. Millar-Blanchaer, Jessica Gersh-Range, Matthias Samland, Macarena Vega-Pallauta, Wolfgang Brandner, Toshiyuki Mizuki, Masayuki Kuzuhara, Susan Redmond, Kevin Ludwick, Jaren N. Ashcraft, William O. Balmer, Rusland Belikov, Beth Biller, Sarah Blunt, Ellis Bogat, Oscar Carrión-González, Gael Chauvin, Alexandra Z. Greenbaum, Sebastiaan Haffert, Jim Ingalls, Brian Kern, Bertrand Mennesson, Laurent Pueyo, Dmitry Savransky, Dan Sirbu, Peter Williams, Chen Xie
Comments: 15 pages, 6 figures, proceedings the SPIE Astronomical Telescopes \& Instrumentation 2026
Subjects: astro-ph.IM, astro-ph.EP
arXiv:2608.17057v1 [pdf]
Title: The Roman Coronagraph Community Participation Program: pre-launch reference star list and impact of reference star properties on post-processing performance
Authors: Justin Hom, Schuyler G. Wolff, Jessica Gersh-Range, Ramya M. Anche, Vanessa P. Bailey, Jean-Philippe Berger, Beth A. Biller, Wolfgang Brandner, Marah Brinjikji, Gaël Chauvin, David R. Ciardi, Catherine A. Clark, Laird M. Close, Robert J. De Rosa, Sarah Deveny, Warren B. Foster, Julien H. Girard, Alexandra Z. Greenbaum, Olivier Guyon, Sebastiaan Y. Haffert, Alexander D. Hedglen, Steve B. Howell, Parker T. Johnson, Maggie Y. Kautz, Jay K. Kueny, Masayuki Kuzuhara, Manon Lallement, Rico Landman, Colin Littlefield, Jean-Baptiste Le Bouquin, Jialin Li, Joshua Liberman, Joseph D. Long, Miles Lucas, Jennifer Lumbres, Bruce Macintosh, Jared R. Males, Eric Mamajek, Matthijs Mars, Eden A. McEwen, Avalon L. McLeod, Maxwell A. Millar-Blanchaer, Toshiyuki Mizuki, Sophie Noiret, Tiffany Nguyen, Lauren Schatz, Nicholas T. Schragal, Adam K. Taras, Elena Tonucci, Katie Twitchell, Kyle Van Gorkom, Macarena C. Vega-Pallauta, Jason J. Wang, Jingwen Zhang
Comments: Submitted to SPIE Astronomical Telescopes and Instrumentation 2026, Space Telescopes and Instrumentation 2026: Optical, Infrared, and Millimeter Wave, Paper 14145-32, 20 pages, 10 figures
Subjects: astro-ph.IM, astro-ph.EP, astro-ph.SR
arXiv:2608.17032v1 [pdf]
Title: Validating direct solvers for Newton's gravitational N-body problem, and the systematic comparison between IEEE floating point and Posits
Authors: Simon Portegies Zwart
Comments: submitted to Computer Physics Communication
Subjects: physics.comp-ph, astro-ph.IM, cs.PL, nlin.CD
arXiv:2608.16996v1 [pdf]
Title: Diverse ionized gas conditions in a dynamically hot, interacting galaxy at $z = 9.31$ revealed by JWST/NIRSpec IFU
Authors: Ryota Ikeda, Takahiro Morishita, Massimo Stiavelli, Antonello Calabrò
Comments: Submitted to MNRAS, 12 pages
Subjects: astro-ph.GA
arXiv:2608.16665v1 [pdf]
Title: Two domains of extended Lyman-alpha emission around galaxies: from local radiation to environmental regulation
Authors: Daria Kozlova, Lutz Wisotzki, John Pharo, Tanya Urrutia, Ramona Augustin, Yucheng Guo, Haruka Kusakabe, Joop Schaye, Daniil Smirnov, Ismael Pessa
Comments: Accepted for publication in A&A
Subjects: astro-ph.GA
arXiv:2608.14900v1 [pdf]
Title: VAPOLA - A multiyear, multiband polarization survey of AGNs and Sgr A* at millimeter wavelengths with ALMA II. Spectropolarimetric properties and their evolution from 2017 to 2023
Authors: Douglas Carlos, Ciriaco Goddi, Alejandro Mus, Nicola Marchili, Kazi L. J. Rygl, Ezequiel Albentosa-Ruíz, Iván Martí-Vidal, The Event Horizon Telescope Collaboration
Comments: No journal ref found
Subjects: astro-ph.GA
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