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Postperihelion Coma Composition of the Interstellar Comet 3I/ATLAS from Optical Spectroscopy
The Astrophysical Journal LettersWe present multiepoch optical spectroscopy of the interstellar comet 3I/ATLAS obtained between 2025 December and 2026 January (heliocentric distances of 1.8–3.3 au), yielding postperihelion production rates and mixing ratios for CN, C _3 , C _2 , CH, and Ruining Zhao, Xiliang Zhang, Bin Yang, Xiangyu Fan, Shu Wang, Yang Huang, Jifeng Liu +6 moredoaj +1 more sourceOrigin of comets [PDF]
Astronomical School’s Report, 2003 Three basic conceptions of origin of comets are under discussion. The first one belongs to Laplace who supposed that comets are becoming the members of the Solar system being captured by a giant planet, e.g. Jupiter. It is the hypothesis of capture. Oort supposed that there is a giant cloud of cometary nuclei at the heliocentric distance ∼105 AU.openaire +2 more sourcesSingularities in mass-loaded MHD flow: The cometary bow shock [PDF]
, 1991 We present a one-dimensional model of the mass-loading of the solar wind by cometary ions which predicts a singularity in the mass-loaded flow at M = 2. Further, a subshock occurs when the flow speed reaches M almost-equal-to 1.15.A. J. Coates, Coates, AJ, Khabibrakhmanov, IK, I. Kh. Khabibrakhmanov, V. L. Galinsky, Galinsky, VL +5 morecore +1 more sourceNSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
The Astrophysical Journal LettersWe report on the observation and measurement of astrometry, photometry, morphology, and activity of the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS) with the NSF-DOE Vera C. Rubin Observatory.Colin Orion Chandler, Pedro H. Bernardinelli, Mario Jurić, Devanshi Singh, Henry H. Hsieh, Ian Sullivan, R. Lynne Jones, Jacob A. Kurlander, Dmitrii Vavilov, Siegfried Eggl, Matthew Holman, Federica Spoto, Megan E. Schwamb, Lauren A. MacArthur, Rahil Makadia, Marco Micheli, Aren Heinze, Eric J. Christensen, Wilson Beebe, Aaron Roodman, Kian-Tat Lim, Tim Jenness, James Bosch, Brianna M. Smart, Eric Bellm, Sean MacBride, Meredith L. Rawls, Sarah Greenstreet, Colin Slater, Željko Ivezić, Robert D. Blum, Andrew Connolly, Gregory Daues, Michelle Gower, J. Bryce Kalmbach, Michele T. Bannister, Luke Dones, Rosemary C. Dorsey, Davide Farnocchia, Wesley C. Fraser, John C. Forbes, Cesar Fuentes, Carrie E. Holt, Laura Inno, Geraint H. Jones, Matthew M. Knight, Chris J. Lintott, Tim Lister, Robert Lupton, Mark Jesus M. Magbanua, Renu Malhotra, Beatrice E. A. Mueller, Joseph Murtagh, Nitya Pandey, William T. Reach, Nalin H. Samarasinha, Darryl Z. Seligman, Colin Snodgrass, Michael Solontoi, Gyula M. Szabó, Peter Vereš, Ellie White, Maria Womack, Leslie A. Young, Russ Allbery, Shreya Anand, Roberto Armellin, Éric Aubourg, Chrysa Avdellidou, Farrukh Azfar, James Bauer, Keith Bechtol, Valerie Becker, Matthew Belyakov, Susan D. Benecchi, Ivano Bertini, Dennis Bodewits, Patricia Boeshaar, Bryce T. Bolin, Maitrayee Bose, Alexandre Boucaud, Rodrigo C. Boufleur, Dominique Boutigny, Andrew Bradshaw, Felipe Braga-Ribas, Johan Bregeon, Laura E. Buchanan, Daniel Calabrese, J. I. B. Camargo, Neven Caplar, Jeffrey L. Carlin, Benoit Carry, Juan Pablo Carvajal, Ross Ceballo, Hsin-Fang Chiang, Yumi Choi, Céline Combet, Luiz da Costa, Preeti Cowan, John Franklin Crenshaw, Steve Croft, Matija Ćuk, Philip N. Daly, Filippo D’Ammando, Felipe Daruich, Guillaume Daubard, James R. A. Davenport, Tansu Daylan, Jennifer Delgado, Hadrien A. R. Devillepoix, Peter E. Doherty, Abbie Donaldson, Holger Drass, Stephanie J. H. Deppe, Gregory P. Dubois-Felsmann, Peter S. Ferguson, Frossie Economou, Marielle R. Eduardo, Ioana Sotuela Elorriaga, Anthony Englert, Edward Karavakis, Kevin Fanning, Maxwell K. Frissell, Grigori Fedorets, Maryann Benny Fernandes, Agnès Ferté, Merlin Fisher-Levine, Mark L Freytag, Marco Fulle, Poshak Gandhi, John Gates, David W. Gerdes, Alex R. Gibbs, A. Fraser Gillan, Massimiliano Giordano Orsini, T. Glanzman, Iain Goodenow, Altair Ramos Gomes-Júnior, Miranda R. Gorsuch, Mikael Granvik, Wen Guan, Leanne P. Guy, Mark Hammergren, Andrew Hanushevsky, Fabio Hernandez, Ǎdis Herrold, Daniel Hestroffer, Joshua Hoblitt, Guillem Megias Homar, Matthew J. Hopkins, Simone Ieva, Patrick Ingraham, David H. Irving, Buell T. Jannuzi, M. James Jee, David Jimenez, Claire Juramy, Steven M. Kahn, Yijung Kang, Arun Kannawadi, JJ Kavelaars, Michael S. P. Kelley, Kshitija Kelkar, Lee S. Kelvin, Ivan Kotov, Alec Koumjian, Gábor Kovács, K. Simon Krughoff, Agnieszka Kryszczyńska, Petr Kubánek, Craig Lage, Travis J. Lange, Pierre-François Léget, Laurent Le Guillou, Benjamin Levine, W. Garrett Levine, Zhuofu (Chester) Li, Shuang Liang, Javier Licandro, Hsing Wen Lin, Carey Lisse, Nate B. Lust, Ryan R. Lyttle, Ashish A. Mahabal, Max Mahlke, Gabriele Mainetti, Rachel Mandelbaum, Steven J. Margheim, Giuliano Margoti, Phil Marshall, Andrés A. Plazas Malagón, Dušan Marčeta, Mario D. Melita, Felipe Menanteau, Joshua Meyers, Dave Mills, Marc Moniez, C.A.L. Morales Marín, Naomi Morato, Surhud More, Christopher B. Morrison, Kris Mortensen, Youssef Moulane, Karlo Mrakovčić, Fritz Mueller, Marco A. Muñoz-Gutiérrez, Homer Neal, F. M. Newcomer, Erfan Nourbakhsh, Paul O’Connor, Drew Oldag, William J. Oldroyd, William O’Mullane, Cyrielle Opitom, Dagmara Oszkiewicz, Gary L. Page, Jack Patterson, Maria T Patterson, Matthew J. Payne, Eske M. Pedersen, Julien Peloton, Chrystian Luciano Pereira, John R. Peterson, Stephen R. Pietrowicz, Edyta Podlewska-Gaca, Rebekah Polen, Daniel Polin, Hannah Mary Margaret Pollek, Yongqiang Qiu, Bruno Quint, Markus Rabus, Darin Ragozzine, Jayadev Rajagopal, Arianna Ranabhat, Kevin Reil, Tiago Ribeiro, Malena Rice, Stephen T. Ridgway, Steven M. Ritz, Andrew S. Rivkin, James E. Robinson, Agata Rożek, Eli Rykoff, Luis E. Salazar Manzano, Andrei Salnikov, Bruno O. Sánchez, David Sanmartim, Gal Sarid, Charles A. Schambeau, Rafe H. Schindler, Samuel J. Schmidt, German Schumacher, Theo Schutt, Daniel Scolnic, Robert Seaman, Jacques Sebag, Nima Sedaghat, Jacqueline Seron, Richard A. Shaw, Alysha Shugart, Jonathan Sick, Jaladh Singhal, Amir Siraj, Michael C. Sitarz, Adam Snyder, Shahram Sobhani, Christine Soldahl, Dallin Spencer, Brian Stalder, Steven Stetzler, Alan Strauss, Christopher W. Stubbs, Krzysztof L. Suberlak, John D. Swinbank, László Szigeti, Dan S. Taranu, Michael Tauraso, John Gregg Thayer, Sandrine Thomas, Adam Thornton, Luca Tonietti, Laura Toribio San Cipriano, David E. Trilling, Chadwick A. Trujillo, Te-Wei Tsai, Douglas L. Tucker, Max Turri, Tony Tyson, Elana K. Urbach, Wouter van Reeven, Antonia Sierra Villarreal, Stelios Voutsinas, Christopher W. Walter, Yuankun (David) Wang, Charlotte Ward, Michael Warner, Maxine West, Emerson Whittaker, Ian Wong, W. M. Wood-Vasey, Bin Yang, Quanzhi Ye, Peter Yoachim, R. Zanmar Sanchez, Jinshuo Zhang, Conghao Zhou +305 moredoaj +1 more sourceThe Origins of Comets
Eos, Transactions American Geophysical Union, 1992 Do we live in astronomically disappointing times? Are the skies duller than they've been in the past‐comets less spectacular, meteors less frequent, and the zodiacal lights dimmer? Certainly as an amateur astronomer I have been haunted by that impression.openaire +1 more sourceThe Comet Interceptor mission to a dynamically new comet
, 2023 openL'elaborato mira ad affrontare il problema del tipo di manovre orbitali richieste per lo scopo della missione Comet Interceptor, ovvero il raggiungimento di un fly-by attorno a una cometa dinamicamente nuova proveniente dalla regione esterna al ...SIMULA, SUSANNAcore Status of the COMET experiment [PDF]
, 2018 The COMET experiment, currently under construction at J-PARC, is designed to search for the the neutrinoless flavour-changing charged-lepton process μ- + A → e- + A, which is a promising channel to look for new physics.Litchfield, R.P., COMET collaboration, .core +1 more sourceFar‐UV emissions from the SL9 impacts with Jupiter [PDF]
, 1995 Observations with the International Ultraviolet Explorer (IUE) during the impacts of the fragments of comet D/Shoemaker-Levy 9 with Jupiter show far-UV emissions from the impact sites within a similar to 10 min time scale.Liu, X, Rego, D, Fireman, G, Ajello, JM, Combi, M. R., Harris, W. M., Feldman, P. D., ben Jaffel, L., Liu, X., Strobel, DF, Jessup, K. L., Feldman, PD, Talavera, A., Livengood, T. A., Gladstone, GR, Budzien, SA, McGrath, MA, Clarke, J. T., ben Jaffel, L, Talavera, A, Prangé, R., Strobel, D. F., Ajello, J. M., Fireman, G., Vincent, M. B., Vincent, MB, Jessup, KL, Emerich, C., Miller, S., Hall, D. T., Combi, MR, Gladstone, G. R., McGrath, M. A., Woodney, L, Emerich, C, Rego, D., Budzien, S. A., Harris, WM, Miller, S, Clarke, JT, Ballester, GE, Livengood, TA, Ballester, G. E., Prangé, R, Woodney, L., Hall, DT +45 morecore +1 more source
