MSGID: 1:317/3 64ae2c7d   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
   galaxy supernova    
    By combining the efforts of professional and citizen scientists, the   
   study of cosmic cataclysms expands our understanding of the universe's   
   extraordinary phenomena    
      
     Date:   
         July 11, 2023   
     Source:   
         SETI Institute   
     Summary:   
         Citizen scientists have set a new record for the SETI Institute   
         and Unistellar, comprising the highest number of observers   
         providing data on a single event. Amateur astronomers conducted   
         a groundbreaking observation of supernova (SN) 2023ixf. The   
         observations, which began just one hour after the supernova's   
         first known appearance, have generated the longest continuous   
         light curve of this supernova gathered by citizen scientists.   
      
      
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   FULL STORY   
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   In an unprecedented achievement, citizen scientists have set a   
   new record for the SETI Institute and Unistellar, comprising the   
   highest number of observers providing data on a single event. Amateur   
   astronomers participating in the SETI Institute's and Unistellar's   
   Cosmic Cataclysms program conducted a groundbreaking observation of   
   supernova (SN) 2023ixf. The observations, which began just one hour   
   after the supernova's first known appearance, have generated the longest   
   continuous light curve of this supernova gathered by citizen scientists   
   that has been published to date. The data collection effort involved   
   123 observers and utilized Unistellar's eVscope, with observations set   
   to continue until the supernova is no longer visible, likely sometime   
   in August. The accomplishment highlights the significant contributions   
   made by citizen scientists in advancing astronomical research.   
      
   "It is really incredible what this citizen science network can do," said   
   Lauren Sgro, who led the study along with Tom Esposito. The two are part   
   of a team of SETI Institute researchers guided by Franck Marchis, a senior   
   astronomer at the SETI Institute and Chief Science Officer and co-founder   
   at Unistellar. "This was the closest supernova of the last decade, and   
   observers took full advantage of the special occasion. They jumped on   
   target as soon as possible and kept observing, which allowed us to witness   
   the full potential of this program."  The research note, published in   
   Research Notes of the American Astronomical Society, revealed that for   
   35 days, 252 observations from 115 telescopes captured the supernova's   
   escalating brightness, followed by its gradual decline. This extensive   
   dataset provides valuable insights into the behavior of this supernova,   
   thanks to the collaborative efforts of dedicated amateur astronomers.   
      
   The supernova (SN) 2023ixf occurred in the Pinwheel Galaxy, a spiral   
   galaxy located approximately 21 million light-years from Earth. This   
   explosive event was first discovered on May 19, 2023 by Japanese amateur   
   astronomer Koichi Itagaki, although others' observations show that it   
   first appeared on May 18.   
      
   Astronomers believe that the explosion likely led= to the formation of   
   a neutron star, marking the final evolutionary stage of the star that   
   went supernova.   
      
   The citizen science campaign is part of the Cosmic Cataclysms science   
   program, jointly undertaken by the SETI Institute and Unistellar. Funded   
   by the Richard Lounsbery Foundation and the Gordon and Betty Moore   
   Foundation, this program allows citizen astronomers to participate in   
   studying cataclysmic events such as supernovae and gamma-ray bursts. By   
   leveraging a newly developed alerts system, the program enables observers   
   to receive real-time notifications when objects of interest are detected,   
   ensuring swift initiation of observation campaigns. Analyzing the   
   increase in brightness and subsequent fading of cataclysmic events,   
   citizen astronomers assist researchers in unraveling crucial details   
   about the progenitor object and the surrounding interstellar material.   
      
   Looking ahead, the Unistellar network of citizen astronomers will continue   
   their endeavors by collaborating with other teams to investigate similar   
   transient events when the Vera C. Rubin Observatory in Chile commences   
   operations next year. By combining the efforts of professional and   
   citizen scientists, the study of cosmic cataclysms reaches new heights,   
   expanding our understanding of the universe's extraordinary phenomena.   
      
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   Source: Materials provided by SETI_Institute. Note: Content may be edited   
   for style and length.   
      
      
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   Journal Reference:   
      1. Lauren A. Sgro, Thomas M. Esposito, Guillaume Blaclard, Sebastian   
      Gomez,   
         Franck Marchis, Alexei V. Filippenko, Daniel O'Conner Peluso,   
         Stephen S.   
      
         Lawrence, Aad Verveen, Andreas Wagner, Anouchka Nardi, Barbara   
         Wiart, Benjamin Mirwald, Bill Christensen, Bob Eramia, Bruce   
         Parker, Bruno Guillet, Byungki Kim, Chelsey A. Logan, Christopher   
         C. M. Kyba, Christopher Toulmin, Claudio G. Vantaggiato, Dana   
         Adhis, Dave Gary, Dave Goodey, David Dickinson, David Koster,   
         Davy Martin, Eliud Bonilla, Enner Chung, Eric Miny, Fabrice   
         Mortecrette, Fadi Saibi, Francois O. Gagnon, Franois Simard, Gary   
         Vacon, Georges Simard, Gerrit Dreise, Hiromi Funakoshi, Janet   
         Vacon, James Yaniz, Jean-Charles Le Tarnec, Jean-Marie Laugier,   
         Jennifer L. W. Siders, Jim Sweitzer, Jiri Dvoracek, John Archer,   
         John Deitz, John K. Bradley, Keiichi Fukui, Kendra Sibbernsen,   
         Kevin Borrot, Kevin Cross, Kevin Heider, Koichi Yamaguchi, Lea   
         A. Hirsch, Liouba Leroux, Mario Billiani, Markus Lorber, Martin   
         J. Smallen, Masao Shimizu, Masayoshi Nishimura, Matthew Ryno,   
         Michael Cunningham, Michael Gagnon, Michael Primm, Michael Rushton,   
         Michael Sibbernsen, Mike Mitchell, Neil Yoblonsky, Niniane Leroux,   
         Olivier Clerget, Ozren Stojanović, Patrice Unique, Patrick   
         Huth, Raymund John Ang, Regis Santoni, Robert Foster, Roberto   
         Poggiali, Ruyi Xu, Ryuichi Kukita, Sanja Sćepanović,   
         Sophie Saibi, Stefan Will, Stephan Latour, Stephen Haythornthwaite,   
         Sylvain Cadieux, Thoralf Mu"ller, Tze Yang Chung, Yoshiya Watanabe,   
         Yvan Arnaud. Photometry of Type II Supernova SN 2023ixf with a   
         Worldwide Citizen Science Network. Research Notes of the AAS,   
         2023; 7 (7): 141 DOI: 10.3847/2515-5172/ace41f   
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   Link to news story:   
   https://www.sciencedaily.com/releases/2023/07/230711133116.htm   
      
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