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Search for Continuous Gravitational Waves from Known Pulsars in the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run
Adrian Abac, Robert Abbott, I. Abouelfettouh, F Acernese, K. Ackley, S Adhicary, N Adhikari, R.X Adhikari, V.K Adkins, D. Agarwal, M. Agathos, Maryam Aghaei Abchouyeh, Ignácio Aguilar, L. Aiello, A. Ain, P. Ajith, T. Akutsu, S. Albanesi, R. A. Alfaidi, Ammar Al-Jodah, C Alléné, A. Allocca, Shahd Alshammari, P. A. Altin, S. Álvarez-López, A. Amato, L. Amez-Droz, Anthony Amorosi, Claude Amra, A. Ananyeva, Sandra Anderson, W. G. Anderson, M. Andia, Mizuo Ando, T Andrade, N. Andres, M. Andrés‐Carcasona, T. Andrić, J. D. Anglin, S. Ansoldi, J.M Antelis, S. Antier, M. Aoumi, E. Z. Appavuravther, S. Appert, S. K. Apple, K. Arai, A. Araya, M. C. Araya, J.S Areeda, L Argianas, N. Aritomi, F. Armato, N. Arnaud, M Arogeti, S.M Aronson, G. Ashton, Y. Aso, M. Assiduo, S. Assis de Souza Melo, S. M. Aston, P. Astone, F. Attadio, K. AultONeal, S. Babak, F. Badaracco, C. Badger, S. Bae, S. Bagnasco, E. Bagui, J.G Baier, Luca Baiotti, R. Bajpai, T. Baka, M. Ball, G. Ballardin, S.W Ballmer, S. Banagiri, B. Banerjee, D. Bankar, P Baral, J. C. Barayoga, B. C. Barish, D. Barker, P. Barneo, F Barone, B. Barr, L Barsotti, M. Barsuglia, D. Barta, Alice Bartoletti, M. A. Barton, I Bartos, S. Basak, A Basalaev, R. Bassiri, A. Basti, D.E Bates, M. Bawaj, J. C. Bayley, A. C. Baylor, Ii P.A Baynard, M. Bazzan, V.M Bedakihale, F. Beirnaert, M. Bejger, Daniele Belardinelli, A. S. Bell, V. Benedetto, William Benoit, J.D Bentley, M. Ben Yaala, S. Bera, M. Berbel, F. Bergamin, B.K Berger, Sebastiano Bernuzzi, M Beroiz, D. Bersanetti, A. Bertolini, J. Betzwieser, D. Beveridge, N. Bevins, R. Bhandare, U. Bhardwaj, R Bhatt, D. Bhattacharjee, S. Bhaumik, S. Bhowmick, A. Bianchi, I. A. Bilenko, G. Billingsley, A Binetti, S. Bini, O. Birnholtz, S. Biscoveanu, A. Bisht, M. Bitossi, M. A. Bizouard, J.K Blackburn, L. A. Blagg, C. D. Blair, D. G. Blair, F Bobba, N Bode, Guillaume Boileau, M. Boldrini, G. N. Bolingbroke, Adrien Bolliand, L. D. Bonavena, R. Bondarescu, F. Bondu, E Bonilla, M.S Bonilla, A. Bonino, R. Bonnand, P. Booker, Andrea T. Borchers, V. Boschi, Sougato Bose, V. Bossilkov, V. Boudart, Alexis Boudon, A. Bozzi, C Bradaschia, P. R. Brady, Matteo Braglia, A. Branch, M. Branchesi, Jim Brandt, I. Braun, M. Breschi, T. Briant, A. Brillet, M. Brinkmann, P. Brockill, E Brockmueller, A. F. Brooks, Benjamin Brown, D.D Brown, M. L. Brozzetti, S. Brunett, G. Bruno, R. Bruntz, Jennifer Bryant, F Bucci, J Buchanan, O. M. Bulashenko, T. Bulik, H. J. Bulten, Alessandra Buonanno, K Burtnyk, R. Buscicchio, D. Buskulic, C. Buy, Robert L. Byer, G.S Cabourn Davies, G. Cabras, R. Cabrita, V. Cáceres-Barbosa, L. Cadonati, G. Cagnoli, C Cahillane, J. Calderón Bustillo, T. A. Callister, E. Calloni, J.B Camp, M. Canepa, G. Caneva Santoro, K. C. Cannon, H Cao, L. A. Capistran, E. Capocasa, E. Capote, G. Carapella, F. Carbognani, M Carlassara, M. Carpinelli, G Carrillo, J. J. Carter, G. Carullo, J. Casanueva Diaz, C. Casentini, S. Y. Castro-Lucas, S. Caudill, M. Cavaglià, R. Cavalieri, G. Cella, P. Cerdá–Durán, E. Cesarini, W. Chaibi, Pulak K. Chakraborty, S. Chalathadka Subrahmanya, C. Chan, M. Chan, Koustav Chandra, R.-J. Chang, S. Chao, E. L. Charlton, P. Charlton, E. Chassande‐Mottin, C. Chatterjee, Debarati Chatterjee, Deep Chatterjee, M. Chaturvedi, S. Chaty, A. Chen, D Chen, Hong‐Yuan Chen, H. Y. Chen, J Chen, Kuei‐Hsien Chen, Y. Chen, Yanbei Chen, Yitian Chen, H.P Cheng, P. Chessa, H. T. Cheung, S.Y Cheung, F. Chiadini, G. Chiarini, R. Chierici, A. Chincarini, Maria Luisa Chiofalo, A. Chiummo, Clifford C. Chou, S. Choudhary, N. Christensen, S. Chua, Priti Chugh, G. Ciani, P. Ciecieląg, M. Cieślar, M. Cifaldi, R. Ciolfi, F Clara, J. A. Clark, John Clarke, T.A Clarke, P. Clearwater, S Clesse, Eliana M. Coccia, E. Codazzo, P.-F. Cohadon, M Colleoni, C. G. Collette, Josh N. Collins, Sean D. Colloms, A Colombo, M. Colpi, C. M. Compton, Gavin Connolly, T. R. Corbitt, I. Cordero-Carrión, S. Corezzi, Neil J. Cornish, S. Cortese, C. A. Costa, R Cottingham, M. W. Coughlin, A. Couineaux, J.‐P. Coulon, S. T. Countryman, J.-F. Coupechoux, P Couvares, D. M. Coward, M. J. Cowart, R. Coyne, K. Craig, R Creed, P. Cremonese, A.W Criswell, J. C. G. Crockett-Gray, Stephen Crook, Robert Crouch, J. Csizmazia, J. R. Cudell, T. J. Cullen, A Cumming, E. Cuoco, M. Cusinato, P. Dabadie, T. Dal Canton, S. Dall’Osso, Stefano Dal Pra, G. Dálya, B. D’Angelo, S. L. Danilishin, S. D’Antonio, K. Danzmann, K. E. Darroch, L. P. Dartez, V. Dattilo, Aurélie Daumas, N. Davari, I Dave, Anthony P. Davenport, M. Davier, Terry F. Davies, D Davis, L Davis, M.C Davis, Philip Davis, M Dax, J. De Bolle, M. Deenadayalan, J. Degallaix, M. De Laurentis, S. Deléglise, F. De Lillo, D. Dell’Aquila, W. Del Pozzo, F de Marco, F. De Matteis, V d'Emilio, Nicholas Demos, T. Dent, A. Depasse, N. DePergola, R. De Pietri, R. De Rosa, C. De Rossi, R. DeSalvo, R. De Simone, A. Dhani, R Diab, M. C. Díaz, M Di Cesare, G. Dideron, N.A Didio, Tim Dietrich, L Di Fiore, C. Di Fronzo, M. Di Giovanni, T. Di Girolamo, D Diksha, Alessandro Di Michele, J. Ding, S. Di Pace, I Di Palma, F. Di Renzo, M Divyajyoti, A. Dmitriev, Z. Doctor, E. Dohmen, P.P Doleva, Daniel Domı́nguez, L. D’Onofrio, Frederick J Donovan, K. L. Dooley, T. Dooney, S. Doravari, O. Dorosh, M. Drago, J.C Driggers, J.-G. Ducoin, L. Dunn, U. Dupletsa, D d'Urso, P.-A. Duverne, S. E. Dwyer, C Eassa, M. Ebersold, T Eckhardt, G. Eddolls, B. Edelman, T. B. Edo, O. Edy, A. Effler, J. Eichholz, H. Einsle, M. Eisenmann, R. A. Eisenstein, A. Ejlli, R.M Eleveld, M. Emma, Kazuhiko Endo, A. J. Engl, E Enloe, L. Errico, R.C Essick, H. Estellés, D. Estevez, T. Etzel, M.W. Evans, Tamara Evstafyeva, B.E Ewing, José María Ezquiaga, F. Fabrizi, F Faedi, V. Fafone, S. Fairhurst, A.M Farah, B. Farr, W. M. Farr, G Favaro, M. Favata, M. Fays, Mariana Fazio, J. Feicht, M. M. Fejer, R. Felicetti, E. Fenyvesi, D. L. Ferguson, S. Ferraiuolo, I. Ferrante, T. A. Ferreira, F. Fidecaro, P. Figura, A. Fiori, I Fiori, M. Fishbach, R. P. Fisher, R. Fittipaldi, V Fiumara, R. Flaminio, S. M. Fleischer, L. S. Fleming, E. Floden, E. Foley, H Fong, José A. Font, B Fornal, P. W. F. Forsyth, K. Franceschetti, Nicola Franchini, S. Frasca, F. Frasconi, A. Frattale Mascioli, Z. Frei, A. Freise, O. Freitas, W. Frischhertz, P. Fritschel, V. V. Frolov, G.G Fronzé, P. Fritschel, Satoshi Fujii, Toshihiko Fujimori, P. Fulda, M. Fyffe, B. U. Gadre, J. R. Gair, S. Galaudage, Vincenzo Galdi, H. Gallagher, Soledad Gallardo, B. Gallego, Rossella Gamba, D. Ganapathy, A. Ganguly, B. Garaventa, J. García-Bellido, C. García‐Núñez, C. García-Quirós, K.A Gardner, J. Gargiulo, A. Garron, F. Garufi, C. Gasbarra, B Gateley, V. Gayathri, G. Gemme, A. Gennai, V. Gennari, J George, Oliver Gerberding, L. Gergely, Archisman Ghosh, Sayantan Ghosh, Shaon Ghosh, Shrobana Ghosh, Suprovo Ghosh, Tathagata Ghosh, L. Giacoppo, J. A. Giaime, K. D. Giardina, D.R Gibson, D.T Gibson, C. Gier, P. Giri, F. Gissi, S. Gkaitatzis, J. Glanzer, F Glotin, J. Godfrey, P. Godwin, N. L. Goebbels, E. Goetz, Jacob Golomb, S. Gomez Lopez, B. Goncharov, Yingyun Gong, G González, P. Goodarzi, Simon Goode, A. W. Jones, M Gosselin, Alexandre Göttel, R. Gouaty, D.W Gould, K. Govorkova, Srashti Goyal, B. Grace, A. Grado, V Graham, A.E Granados, M. Granata, Slawomir Gras, P. Grassia, A Gray, C Gray, G. Greco, A.C Green, S.M Green, S.R Green, A.M Gretarsson, E.M Gretarsson, D. Griffith, W.L Griffiths, H. L. Griggs, G. Grignani, A. Grimaldi, C. Grimaud, H Grote, D. Guerra, D Guetta, G. M. Guidi, A. R. Guimaraes, H. K. Gulati, F. Gulminelli, A. M. Gunny, W. Guo, Y. Guo, Anchal Gupta, Anuradha Gupta, Ish Gupta, N.C Gupta, Sunil Gupta, Nikhil Gupte, J Gurs, N. Gutierrez, F. Guzman, H H.-Y, Danisia Haba, Michael Haberland, S. Haino, E. D. Hall, E.Z Hamilton, G. Hammond, Wen-Biao Han, M. Haney, J Hanks, C Hanna, M. D. Hannam, O. A. Hannuksela, A. G. Hanselman, H Hansen, J. Hanson, Ryosuke Harada, A. R. Hardison, K Haris, Troels Harmark, J. Harms, John Hart, B. Haskell, C.‐J. Haster, J. S. Hathaway, K. Haughian, H Hayakawa, K. Hayama, Richard D. Hayes, Anna Heffernan, A. Heidmann, M. C. Heintze, J Heinzel, H. Heitmann, F. Hellman, P. Hello, A. F. Helmling-Cornell, G Hemming, O Henderson-Sapir, M. Hendry, I.S Heng, E. Hennes, C. Henshaw, Thomas Hertog, M. Heurs, A. Hewitt, J. Heyns, S Higginbotham, S. Hild, Stephen Hill, Y. Himemoto, N Hirata, C. Hirose, Wynn C. G. Ho, S. Hoang, S. Hochheim, D. Hofman, N. A. Holland, Kelly Holley‐Bockelmann, Z.J Holmes, D. E. Holz, L. Honet, Chien‐Hui Hong, Jean‐Pierre Hornung, S Hoshino, J. Hough, S. Hourihane, E. J. Howell, C. G. Hoy, C. A. Hrishikesh, H-F. Hsieh, C Hsiung, Hsu‐Cheng Hsu, W.-F Hsu, Ping Hu, Q. Hu, A.D Huddart, B. Hughey, C. Y. Hui, V. Hui, S. Husa, R. Huxford, T. Huynh–Dinh, L. Iampieri, G.A Iandolo, M. Ianni, A. Iess, H. Imafuku, Kohei Inayoshi, Yuki Inoue, G Iorio, Muhammad Iqbal, J. Irwin, Rie Ishikawa, M. Isi, Y. Itoh, H. Iwanaga, M. Iwaya, B. R. Iyer, V Jaberianhamedan, C Jacquet, P.-E. Jacquet, S. J. Jadhav, S.P Jadhav, T Jain, A. L. James, P. A. James, Rasa Jamshidi, Justin Janquart, K. Janssens, N.N Janthalur, S Jaraba, P. Jaranowski, R. Jaume, Wajiha Javed, Alan L. Jennings, W. Jia, Jun Jiang, Hong-Bo Jin, Jerzy Kubisz, Conrad E. Johanson, G. R. Johns, N. A. Johnson, M. C. Johnston, Ron Johnston, N Johny, D. H. P. Jones, D. I. Jones, Rebecca B. Jones, S Jose, P. Joshi, L. Ju, K Jung, J Junker, V Juste, T. Kajita, Ikou Kaku, C. V. Kalaghatgi, V. Kalogera, M Kamiizumi, N. Kanda, S. Kandhasamy, G. Kang, J.B Kanner, S. J. Kapadia, D. P. Kapasi, S. Karat, C. Karathanasis, Rahul Kashyap, M Kasprzack, W. Kastaun, Takeo Kato, E. Katsavounidis, W. Katzman, K Kawabe, R Kawamoto, A Kazemi, D. Keitel, J. Kelley-Derzon, James Kennington, Ravi Kesharwani, J. S. Key, R. Khadela, S Khadka, F. Y. Khalili, Faheem Khan, I. Khan, T Khanam, M Khursheed, N. M. Khusid, W. Kiendrébéogo, N. Kijbunchoo, C Kim, J C Kim, K Kim, M.H Kim, Y.-M Kim, C. Kimball, M. Kinley-Hanlon, M. Kinnear, J.S Kissel, S Klimenko, A. M. Knee, N. Knust, Kazuya Kobayashi, P Koch, S. M. Koehlenbeck, G. Koekoek, Kazunori Kohri, K Kokeyama, S. Koley, P. Kolitsidou, M. Kolstein, K Komori, A. K. H. Kong, A Kontos, M. Korobko, R.V Kossak, X Kou, Anita Koushik, M. Kovalam, D. B. Kozak, S. L. Kranzhoff, V Kringel, N.V Krishnendu, A. Królak, K. Kruska, G. Kuehn, P. Kuijer, S Kulkarni, A. Kulur Ramamohan, Amit Kumar, P. Kumar, Rahul Kumar, Rakesh Kumar, J. Kume, K. Kuns, N. Kuntimaddi, Sachiko Kuroyanagi, N.J Kurth, S. Kuwahara, Kit Yue Kwan, Jennifer Kwok, G. Lacaille, P. Lagabbe, D. Laghi, Siang Hui Lai, A. H. Laity, M. H. Lakkis, É. Lalande, M Lalleman, P. C. Lalremruati, M Landry, B. B. Lane, R.N Lang, J Lange, B. Lantz, A La Rana, I. La Rosa, A. Lartaux-Vollard, P. D. Lasky, Jack Lawrence, M.N Lawrence, M. Laxen, A. Lazzarini, C. Lazzaro, P. Leaci, Y. K. Lecoeuche, Hyung Mok Lee, K Lee, R.-K Lee, Ray‐Kuang Lee, Y. Lee, I.N Legred, J. Lehmann, Luis Lehner, M. Le Jean, Meri Lenti, M. Leonardi, Michel Lequime, N. Leroy, M. Lesovsky, N. Letendre, M. Lethuillier, S.E Levin, Y. Levin, K. Leyde, A.K.Y Li, K.L Li, T. G. F. Li, X. Li, Zijian Li, A. Lihos, E.T Lin, F. Lin, H. Lin, L. C.-C. Lin, Y.-C Lin, F Linde, S. D. Linker, T. Littenberg, Guo-Chin Liu, J. Liu, F. Llamas Villarreal, J. Llobera-Querol, R. K. L. Lo, Jean‐Pierre Locquet, L. T. London, A. Longo, D. Lopez, M. Lorenzini, A. Lorenzo-Medina, V. Loriette, M. Lormand, G. Losurdo, Iv T.P Lott, J. D. Lough, Hudson A. Loughlin, C.O Lousto, M.J Lowry, N Lu, Harald Lück, D. Lumaca, A. P. Lundgren, A. W. Lussier, Longfei Ma, Shuguo Ma, M Ma'Arif, R. Macas, Alexandra Lorandi Macedo, M. MacInnis, R. R. Maciy, D. M. Macleod, I.A.O Macmillan, A. Macquet, D. Macri, Kei‐ichi Maeda, S. Maenaut, I. Magaña Hernandez, Sourabh Magare, C. Magazzù, Elisa Maggio, R. Maggiore, M. Magnozzi, M Mahesh, S Mahesh, Mala K. Maini, Santosh Kumar Majhi, E. Majorana, C.N Makarem, E Makelele, J. A. Malaquias-Reis, U. Mali, S. Maliakal, A. Malik, N. Man, Vuk Mandic, V. Mangano, B Mannix, G. L. Mansell, G Mansingh, M Manske, M. Mantovani, Michela Mapelli, F. Marchesoni, D. Marín Pina, F. Marion, S. Márka, Z Márka, A. S. Markosyan, A. Markowitz, E Maros, F Martelli, I. W. Martin, R. M. Martin, B.B Martinez, M. Martı́nez, V. Martínez, Alberto Martini, K. Martinovic, J. C. Martins, Д. В. Мартынов, E.J Marx, L Massaro, A. Masserot, M. Masso‐Reid, M. Mastrodicasa, S. Mastrogiovanni, T. Matcovich, M. Matiushechkina, M. Matsuyama, N. Mavalvala, Nicholas Maxwell, G. McCarrol, R. McCarthy, D. E. McClelland, Sheila McCormick, L Mcculler, S. McEachin, C. McElhenny, G. I. McGhee, J Mcginn, K. B. M. McGowan, J. McIver, T. McRae, D Meacher, Q. Meijer, A. Melatos, S Mellaerts, A. Menéndez-Vázquez, Carmen S. Menoni, F. Mera, R. A. Mercer, L. Mereni, K. Merfeld, E.L Merilh, J.R Mérou, J. D. Merritt, M. Merzougui, C. Messenger, C. Messick, Zachary Metzler, M. Meyer-Conde, F. Meylahn, A. Mhaske, A. Miani, H. Miao, I. Michaloliakos, C. Michel, Y Michimura, H. Middleton, S. Miller, M. Millhouse, E. Milotti, Valeria Milotti, Y Minenkov, N. Mio, L. M. Mir, L. Mirasola, M. Miravet-Tenés, C.-A. Miritescu, Abhishek Mishra, C Mishra, T. Mishra, A. L. Mitchell, J.G Mitchell, S Mitra, V. P. Mitrofanov, R. Mittleman, O Miyakawa, S. Miyamoto, S. Miyoki, Geoffrey Mo, L. Mobilia, S.R.P Mohapatra, S.R Mohite, M. Molina-Ruiz, C. Mondal, M. Mondin, M. Montani, C. J. Moore, D Moraru, Anupreeta More, Surhud More, G Moreno, C. Morgan, S. Morisaki, Y Moriwaki, Gonzalo Morrás, A. Moscatello, Pierre Mourier, B. Mours, C. M. Mow–Lowry, F. Muciaccia, Arunava Mukherjee, D Mukherjee, Samanwaya Mukherjee, Soma Mukherjee, S. Mukherjee, Suvodip Mukherjee, N. Mukund, A Mullavey, J Munch, J. Mundi, C. L. Mungioli, W. R. Munn Oberg, Yoshio Murakami, Masanori Murakoshi, S. Muusse, D. Nabari, S.L Nadji, A. Nagar, Neeraja Nagarajan, K. N. Nagler, K Nakagaki, K. Nakamura, Hiroyuki Nakano, Masayuki Nakano, Dibyendu Nandi, V. Napolano, P. Narayan, I. Nardecchia, Tatsuya Narikawa, H Narola, L. Naticchioni, R.K Nayak, J. Neilson, A Nelson, T.J.N Nelson, M Nery, A. Neunzert, S. Ng, L. Nguyen Quynh, S.A Nichols, A. B. Nielsen, G. Nieradka, A Niko, Yohei Nishino, A. Nishizawa, S Nissanke, E. Nitoglia, W Niu, F Nocera, Michael L. Norman, C. North, J. Novák, J. F. Nuño Siles, K. Obayashi, J Oberling, J. O’Dell, Micaela Oertel, Anne-Marie Offermans, G. Oganesyan, J. J. Oh, T. O’Hanlon, M. Ohashi, Masashi Ohkawa, F. Ohme, A.S Oliveira, Roberto Oliveri, B O'Neal, K. Oohara, B. O’Reilly, N.D Ormsby, Marta Orselli, R. O’Shaughnessy, Sebastian O’Shea, Yuichi Oshima, S. Oshino, Serguei Ossokine, C. Osthelder, I. Ota, D. J. Ottaway, A. Ouzriat, H. Overmier, B. J. Owen, Alberto Pace, R Pagano, A. Pai, András Pál, S. Pal, M. A. Palaia, M Pálfi, P. P. Palma, C. Palomba, Pierre Palud, H Pan, Jing Pan, K. Pan, R Panai, P.K Panda, Sanjay Pandey, L. Panebianco, P. T. H. Pang, F. Pannarale, Kristina Pannone, B.C Pant, F. H. Panther, F. Paoletti, A. Paolone, Evangelos E. Papalexakis, L. Papalini, G. Papigkiotis, A. Paquis, A. Parisi, B.-J Park, J. Park, W Parker, Gennaro De Pascale, D. Pascucci, A Pasqualetti, R. Passaquieti, L. Passenger, D Passuello, O. Patane, D. Pathak, M. Pathak, Abani Patra, B. Patricelli, A.S Patron, K. Paul, S Paul, E. Payne, Timothy R. Pearce, M. Pedraza, R. Pegna, A. Pele, F.E. Peña Arellano, S. Penn, M. D. Penuliar, Albino Perego, Z. Pereira, J. J. Perez, C. Périgois, A. Perreca, Jennifer L. Perret, S. Perriès, J. W. Perry, D Pesios, S. Petracca, C. Petrillo, Harald Pfeiffer, H. Pham, K. A. Pham, K. S. Phukon, H Phurailatpam, M. Piarulli, M. Piendibene, O. J. Piccinni, M. Pichot, F. Piergiovanni, L Pierini, G. Pierra, V. Pierro, Michał Bernard Pietrzak, F. Pilo, L. Pinard, I. M. Pinto, M Pinto, B.J Piotrzkowski, M Pirello, M. Pitkin, A. Placidi, E. Placidi, M.L Planas, W. Plastino, R. Poggiani, E. Polini, Lorenzo Pompili, J. Poon, E Porcelli, E. K. Porter, C Posnansky, R Poulton, J. Powell, M. Pracchia, Bhabendra K. Pradhan, T. Pradier, A. K. Prajapati, K Prasai, P. Prasia, G. Pratten, G. Principe, M. Principe, G. A. Prodi, L. Prokhorov, P. Prosposito, A. Puecher, Jorge Pullin, M. Punturo, P Puppo, M Pürrer, H. Qi, J. Qin, G. Qúeḿener, V. Quetschke, Cliodhna Quigley, P. J. Quinonez, F. J. Raab, S.S Raabith, G. Raaijmakers, S Raja, C Rajan, K. E. Ramirez, F. A. Ramis Vidal, A. Ramos-Buades, Divya Rana, Karen Ransom, P. Rapagnani, B. Ratto, Siddharth Rawat, Anarya Ray, V. Raymond, M. Razzano, J. Read, María Recamán Payo, T. Regimbau, L. Rei, S. Reid, D. H. Reitze, P. Relton, A.I Renzini, P. Rettegno, B. Revenu, Renato G. Reyes, A.S Rezaei, F Ricci, Angelo Ricciardone, M. Richardson, A. Rijal, K. Riles, H. K. Riley, S. Rinaldi, J. Rittmeyer, C Robertson, F. Robinet, Mitchell B. Robinson, A. Rocchi, L. Rolland, Antonio Enea Romano, R. Romano, A. Romero, I.M Romero-Shaw, J. H. Romie, S. Ronchini, T. J. Roocke, L Rosa, T. J. Rosauer, C.A Rose, D. Rosińska, M.P Ross, M Rossello, S. Rowan, S. Roy, D. Rozza, P. Ruggi, N. Ruhama, E. Ruiz Morales, K Ruiz-Rocha, S Sachdev, T Sadecki, J. Sadiq, P Saffarieh, Surojit Saha, T. Sainrat, S. Sajith Menon, K Sakai, Mairi Sakellariadou, S Sakon, F. Salces-Cárcoba, L. Salconi, M. Saleem, F. Salemi, M. Sallé, S. Salvador, A Sanchez, J.H Sanchez, N. Sanchis-Gual, Filippo Santoliquido, N. Sarin, Seiya Sasaoka, A. Sasli, Paola Sassi, B. Sassolas, H. Satari, Ricardo Sato, Yuri Sato, O. Sauter, T. Sawada, S. Sayah, V. Scacco, D. Schaetzl, A. Schiebelbein, P. Schmidt, S. Schmidt, R Schnabel, Koen Schouteden, E. Schwartz, M. Scialpi, M. Seglar-Arroyo, Yuichiro Sekiguchi, James A. Sellers, D. Sentenac, V Sequino, G. Servignat, Alexander Sevrin, T. Shaffer, Lijing Shao, P Sharma, S. Sharma-Chaudhary, P. Shawhan, Elijah Sheridan, Yutaka Shikano, M. Shikauchi, K. Shimode, H. Shinkai, J Shiota, Deirdre Shoemaker, S. ShyamSundar, A Sider, Harrison Siegel, M. Sieniawska, D. Sigg, L. Silenzi, Mark Simmonds, A. Singh, D Singh, Seema Singh, A. Singha, N. Singh, V. Skliris, B. J. J. Slagmolen, J. Smetana, L Smith, J Soldateschi, K. Somiya, I. Song, K. Soni, S. Soni, V. Sordini, F. Sorrentino, N. Sorrentino, Hajime Sotani, R. Soulard, A Southgate, V. Spagnuolo, M. Spera, P Spinicelli, F. Stachurski, J. Steinlechner, S. Steinlechner, Nikolaos Stergioulas, Paul E. Stevens, Marie V. St–Pierre, G. Stratta, A Strunk, R. Sturani, M. Suchenek, S. Sudhagar, N. Sueltmann, L. Suleiman, L. Sun, J. Suresh, Y. Suzuki, A Syx, P. Szewczyk, M. Tacca, H. Tagoshi, H Takahashi, R Takahashi, A. Takamori, Tsunenobu Takase, K. Takatani, H. Takeda, Kenichi Takeshita, C. Talbot, M. Tamaki, N Tamanini, D. Tanabe, К. Таnака, Dan Tang, S. Tanioka, L Tao, R. Tarafder, C. Taranto, Atsushi Taruya, M. Teloi, R. Tenorio, H Themann, A. Theodoropoulos, M Thomas, Patrick Thomas, E. Thrane, Jacopo Tissino, K. A. Thorne, Pawan Tiwari, Srishti Tiwari, V. Tiwari, K. Toland, T. Tomaru, K. Tomita, T. Tomura, C. Tong-Yu, Akira Toriyama, N Toropov, I. Tosta e Melo, E Tournefier, A Trapananti, F. Travasso, G. Traylor, M Trevor, A. Tripathee, G. Troian, Luigi Troiano, A. Trovato, L. Trozzo, R. Tso, S. Tsuchida, Leo Tsukada, T. Tsutsui, K. Turbang, M. Turconi, C Turski, H Ubach, T. Uehara, Masaaki Uematsu, K Ueno, S. Ueno, V. Undheim, T. Ushiba, M. Vacatello, H. Vahlbruch, Nina Vaidya, G. Vajente, A. Vajpeyi, G. Valdes, S. Vallero, V. Valsan, N van Bakel, M. van Beuzekom, M. van Dael, Marc van der Sluys, Axel van de Walle, J. van Dongen, K. Vandra, Hans Van Haevermaet, P. Van Hove, M. VanKeuren, J. Vanosky, Z. van Ranst, N. Van Remortel, M. Vardaro, V. Varma, M. Vasúth, A. Vecchio, G. Vedovato, J Veitch, S. Venikoudis, J. Venneberg, P. Verdier, D. Verkindt, B Verma, Paritosh Verma, Y. Verma, F. Vetrano, A. Veutro, A Viceré, S. Vidyant, A. Vijaykumar, A. Vilkha, V. Villa-Ortega, J.-Y. Vinet, S. Viret, A Virtuoso, Alejandra Vives, H. Vocca, D Voigt, M. Wade, Aftab Wajid, M Walker, L. Wallace, W. H. Wang, Zhen Wang, G. Waratkar, J Warner, M. Wąs, T. Washimi, B Weaver, M. Weinert, Robert A. Weiss, F. Wellmann, Liangjian Wen, K. Wette, C. Whittle, D. Wilken, K. Willetts, D. R. Williams, B. Willke, M Wils, J. Winterflood, G. Woan, J. Woehler, I.C.F Wong, M Wright, E. Wuchner, Y. Xu, N Yadav, H Yamamoto, Shigeo Yamamura, Ryo Yamazaki, Shengyu Yan, Tong Yan, Fan Yang, Z. Yarbrough, Hiroyuki Yasui, Sang‐Wook Yeh, Xiaofan Yin, J Yokoyama, T. Yokozawa, J. Yoo, H Yu, Sihan Yuan, H. Yuzurihara, A. Zadrożny, M Zanolin, T. Zelenova, J.‐P. Zendri, M Zeoli, Myriam Zerrad, M Zevin, L. Zhang, R Zhang, T. Zhang, Ya Zhang, C. Zhao, Yue Zhao, Yang Zhao, H Zhong, R. Zhou, X. J. Zhu, J. Zweizig, Zaven Arzoumanian, Avishek Basu, A. Cassity, I. Cognard, Kathryn Crowter, S. del Palacio, Emmanuel Fonseca, G. 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Bibliographic record
VenueThe Astrophysical Journal · 2025
Typearticle
Languageen
FieldPhysics and Astronomy
TopicPulsars and Gravitational Waves Research
Canadian institutionsnot available
FundersEuropean Social FundAstrophysics DivisionAstrophysics Science DivisionNational Research, Development and Innovation OfficeInstitute for Cosmic Ray Research, University of TokyoInstitut National de Physique Nucléaire et de Physique des ParticulesGreat Southern Development Commission, Government of Western AustraliaAgencia Estatal de InvestigaciónFonds de recherche du Québec – Nature et technologiesScience and Engineering Research BoardJapan Society for the Promotion of ScienceSmithsonian Astrophysical ObservatoryGoddard Space Flight CenterNational Science and Technology CouncilEuropean Regional Development FundCentre National de la Recherche ScientifiqueICTP South American Institute for Fundamental ResearchMinistry of Science and ICT, South KoreaNemzeti Kutatási Fejlesztési és Innovációs HivatalNational Research FoundationVlaamse regeringNational Astronomical Observatory of JapanConseil Régional, Île-de-FranceIsrael Science FoundationScottish Universities Physics AllianceNational Natural Science Foundation of ChinaNational Research Foundation of KoreaDivision of Human Resource DevelopmentKorea Astronomy and Space Science InstituteMinisterio de Ciencia, Innovación y UniversidadesNuclear Safety and Security CommissionObservatoire de Paris, Université de Recherche Paris Sciences et LettresHungarian Scientific Research FundGeneralitat de CatalunyaGeneralitat ValencianaFonds Wetenschappelijk OnderzoekMinistry of Education, IndiaConsejo Nacional de Investigaciones Científicas y TécnicasAgencia Nacional de Investigación y DesarrolloIstituto Nazionale di Fisica NucleareSmithsonian InstitutionU.S. Department of EnergyScience and Technology Facilities CouncilSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen ForschungCentre National d’Etudes SpatialesKorea Institute of Science and Technology InformationNederlandse Organisatie voor Wetenschappelijk OnderzoekNatural Sciences and Engineering Research Council of CanadaMinistry of Education, Culture, Sports, Science and TechnologyCouncil of Scientific and Industrial Research, IndiaRussian Science FoundationUniversidad Nacional de La PlataEuropean CommissionLeverhulme TrustScottish Funding CouncilMcGill Space InstituteNarodowa Agencja Wymiany AkademickiejCentres de Recerca de CatalunyaInstitut des Origines de LyonMcGill UniversityFonds De La Recherche Scientifique - FNRSFundacja na rzecz Nauki PolskiejAcademia SinicaAbdus Salam International Centre for Theoretical PhysicsNational Aeronautics and Space AdministrationNational Science Foundation
KeywordsPhysicsLIGOPulsarNeutron starGravitational waveMillisecond pulsarAstrophysicsAmplitudeBinary pulsarAstronomyCrab PulsarGeneral relativityChirpClassical mechanicsQuantum mechanics
Abstract
Abstract Continuous gravitational waves (CWs) emission from neutron stars carries information about their internal structure and equation of state, and it can provide tests of general relativity. We present a search for CWs from a set of 45 known pulsars in the first part of the fourth LIGO–Virgo–KAGRA observing run, known as O4a. We conducted a targeted search for each pulsar using three independent analysis methods considering single-harmonic and dual-harmonic emission models. We find no evidence of a CW signal in O4a data for both models and set upper limits on the signal amplitude and on the ellipticity, which quantifies the asymmetry in the neutron star mass distribution. For the single-harmonic emission model, 29 targets have the upper limit on the amplitude below the theoretical spin-down limit. The lowest upper limit on the amplitude is 6.4 × 10 −27 for the young energetic pulsar J0537−6910, while the lowest constraint on the ellipticity is 8.8 × 10 −9 for the bright nearby millisecond pulsar J0437−4715. Additionally, for a subset of 16 targets, we performed a narrowband search that is more robust regarding the emission model, with no evidence of a signal. We also found no evidence of nonstandard polarizations as predicted by the Brans–Dicke theory.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.004
Threshold uncertainty score0.009
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
Opus teacher head0.017
GPT teacher head0.308
Teacher spread0.291 · how far apart the two teachers sit on this one work
Validation status
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".
Quick stats
Citations14
Published2025
Admission routes1
Has abstractyes