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D. A. Howell

las cumbres observatory

90H-index
881Paper Count
3.5WCitation Count
Published Papers 309
Publication Date
SN 2024abfl: A Flat-plateau; Low-luminosity Type IIP Supernova with Early Circumstellar Matter Interaction
err2026-04-27
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errOAAI
errMadison Gerard; Jennifer E. Andrews; Geoffrey C. Clayton; David J. Sand; K. Azalee Bostroem; Jeniveve Pearson; Raya Dastidar; Aravind P. Ravi; Conor L. Ransome; Bhagya Subrayan; Griffin Hosseinzadeh; Brian Hsu; Yize Dong; Manisha Shrestha; Stefano Valenti; Nathan Smith; Daryl Janzen; M. J. Lundquist; Nicolás Meza; Saurabh W. Jha; Kate D. Alexander; Collin Christy; Noah Franz; Lindsey A. Kwok; Moira Andrews; Joseph Farah; Daichi Hiramatsu; D. Andrew Howell; Curtis McCully; Kathryn Wynn; Réka Könyves-Tóth; Xiaofeng Wang; Alexei V. Filippenko; Thomas G. Brink
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Photometry and Spectroscopy of SN 2024pxl: A Luminosity Link among Type Iax Supernovae
err2026-03-09
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errOAAI
errMridweeka Singh; Lindsey A. Kwok; Saurabh W. Jha; R. Dastidar; Conor Larison; Alexei V. Filippenko; Jennifer E. Andrews; Moira Andrews; G. C. Anupama; Prasiddha Arunachalam; Katie Auchettl; Dominik Bánhidi; Barnabas Barna; K. Azalee Bostroem; Thomas G. Brink; Régis Cartier; Ping Chen; Collin T. Christy; David A. Coulter; Sofia Covarrubias; Kyle W. Davis; Connor B. Dickinson; Yize Dong; Joseph Farah; Andreas Flörs; Ryan J. Foley; Noah Franz; Christoffer Fremling; Lluís Galbany; Anjasha Gangopadhyay; Aarna Garg; Elinor L. Gates; Or Graur; Alexa C. Gordon; Daichi Hiramatsu; Emily Hoang; D. Andrew Howell; Brian Hsu; Joel Johansson; Arti Joshi; Lordrick A. Kahinga; Ravjit Kaur; Sahana Kumar; Piramon Kumnurdmanee; Hanindyo Kuncarayakti; Natalie LeBaron; C. Lidman; Chang Liu; Keiichi Maeda; Kate Maguire; Bailey Martin; Curtis McCully; Darshana Mehta; Luca M. Menotti; Anne J. Metevier; A. A. Miller; Kuntal Misra; C. Tanner Murphey; Megan Newsome; Estefania Padilla Gonzalez; Kishore C. Patra; Jeniveve Pearson; Anthony L. Piro; Abigail Polin; Aravind P. Ravi; Armin Rest; Nabeel Rehemtulla; Nicolas Meza Retamal; O. M. Robinson; César Rojas-Bravo; Devendra K. Sahu; David J. Sand; Brian P. Schmidt; Steve Schulze; Michaela Schwab; Manisha Shrestha; Matthew R. Siebert; Sunil Simha; Nathan Smith; Jesper Sollerman; Shubham Srivastav; Bhagya M. Subrayan; Tamás Szalai; Kirsty Taggart; Rishabh Singh Teja; Jacco H. Terwel; Samaporn Tinyanont; Stefano Valenti; József Vinkó; Aya L. Westerling; J. Craig Wheeler; Yi Yang; WeiKang Zheng
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SN 2023zcu: A Type IIP SN with Early Flash Features
err2026-02-25
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errOAAI
errMonalisa Dubey; Kuntal Misra; Géza Csörnyei; Raya Dastidar; D. Andrew Howell; David J. Sand; Stefano Valenti; WeiKang Zheng; Alexei V. Filippenko; Saurabh Jha; Jesper Sollerman; Peter Brown; Kate D. Alexander; Moira Andrews; Jennifer Andrews; Dre Betz; Emma Born; Kate Bostow; K. Azalee Bostroem; Sea’n J. Brennan; Thomas G. Brink; Collin Christy; Elma Chuang; Yize Dong; Naveen Dukiya; Joseph R. Farah; Noah Franz; Estefania Padilla Gonzalez; Joshua Haislip; Emily Hoang; Griffin Hosseinzadeh; Brian Hsu; Connor Jennings; Vladimir Kouprianov; M. J. Lundquist; Colin Macrie; Curtis McCully; Andrew Mchaty; Darshana Mehta; Katie Mora; Megan Newsome; Jeniveve Pearson; Neil Pichay; Conor Ransome; Aravind P. Ravi; Daniel E. Reichart; Nicolás Meza Retamal; Sophia Risin; Manisha Shrestha; Ajay Kumar Singh; Nathan Smith; Bhagya Subrayan; Giacomo Terreran; William Wu
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When IIb Ceases To Be: Bridging the Gap between IIb and Short-plateau Supernovae
err2026-02-18
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errOAAI
errJoseph R. Farah; D. Andrew Howell; Daichi Hiramatsu; Curtis McCully; Moira Andrews; Megan Newsome; Estefania Padilla Gonzalez; Craig Pellegrino; Edo Berger; Peter Blanchard; Sebastian Gomez; Harsh Kumar; K. Azalee Bostroem; Yuan Qi Ni; A. Gagliano; Aravind P. Ravi
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SN 2024afav: A Superluminous Supernova with Multiple Light-curve Bumps and Spectroscopic Signatures of Circumstellar Interaction
err2026-02-02
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errOAAI
errHarsh Kumar; Peter K. Blanchard; Edo Berger; Wasundara Athukoralalage; Daichi Hiramatsu; Sebastian Gomez; Moira Andrews; K. Azalee Bostroem; Joseph R. Farah; D. Andrew Howell; Curtis McCully
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Early Lightcurves of Type Ia Supernovae Are Consistent with Nondegenerate Progenitor Companions
err2025-11-17
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errOAAI
errJ. Burke; M. Andrews; D. A. Howell; D. J. Sand; R. C. Amaro; P. J. Brown; J. E. Andrews; K. A. Bostroem; Y. Dong; J. Haislip; D. Hiramatsu; G. Hosseinzadeh; V. Kouprianov; M. J. Lundquist; C. McCully; C. Pellegrino; D. Reichart; L. Tartaglia; S. Valenti; S. Wyatt; S. Yang
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A new way to find symbiotic stars: accretion disc detection with continuum survey photometry
err2025-11-01
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errOAAI
errLucy, A. B.; Sokoloski, J. L.; Luna, G. J. M.; Mukai, K.; Nunez, N. E.; Buckley, D. A. H.; Breytenbach, H.; Paul, B.; Potter, S. B.; Manick, R.; Howell, D. A.; Wolf, C.; Onken, C. A.
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SN 2019hnl: A Type IIP Supernova with a Partially Stripped; Low-mass Progenitor
err2025-10-22
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errOAAI
errAidan Martas; Stefano Valenti; Aravind P. Ravi; Yize Dong; K. Azalee Bostroem; Jeniveve Pearson; Manisha Shrestha; Jennifer E. Andrews; David J. Sand; Griffin Hosseinzadeh; Michael Lundquist; Emily Hoang; Darshana Mehta; Nicolás Meza Retamal; Saurabh W. Jha; Daryl Janzen; D. Andrew Howell; Curtis McCully; Daichi Hiramatsu; Craig Pellegrino
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A Detection of Helium in the Bright Superluminous Supernova SN 2024rmj
err2025-10-09
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errOAAI
errHarsh Kumar; Edo Berger; Peter K. Blanchard; Daichi Hiramatsu; Sebastian Gomez; Alex Gagliano; Moira Andrews; K. Azalee Bostroem; Joseph Farah; D. Andrew Howell; Curtis McCully
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Early Shock Cooling Observations and Progenitor Constraints of Type IIb Supernova SN 2024uwq
err2025-09-10
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errOAAI
errBhagya M. Subrayan; David J. Sand; K. Azalee Bostroem; Saurabh W. Jha; Aravind P. Ravi; Michaela Schwab; Jennifer E. Andrews; Griffin Hosseinzadeh; Stefano Valenti; Yize Dong; Jeniveve Pearson; Manisha Shrestha; Lindsey A. Kwok; Emily Hoang; Jeonghee Rho; Seong Hyun Park; Sung-Chul Yoon; T. R. Geballe; Joshua Haislip; Daryl Janzen; Vladimir Kouprianov; Darshana Mehta; Nicolás Meza Retamal; Daniel E. Reichart; Moira Andrews; Joseph Farah; Megan Newsome; D. Andrew Howell; Curtis McCully
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EP241021a: A Months-duration X-Ray Transient with Luminous Optical and Radio Emission
err2025-08-29
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errOAAI
errXinwen Shu; Lei Yang; Haonan Yang; Fan Xu; Jin-Hong Chen; Rob A. J. Eyles-Ferris; Lixin Dai; Yunwei Yu; Rong-Feng Shen; Luming Sun; Hucheng Ding; WeiKang Zheng; Ning Jiang; Wenxiong Li; Ning-Chen Sun; Dong Xu; Zhumao Zhang; Chichuan Jin; Arne Rau; Tinggui Wang; Xue-feng Wu; Weimin Yuan; Bing Zhang; Kirpal Nandra; Alexei V. Filippenko; Frédérick Poidevin; Roberto Soria; Amit Kumar; David S. Aguado; Fangxia An; Tao An; Jie An; Moira Andrews; Rungrit Anutarawiramkul; Pietro Baldini; Thomas G. Brink; Pathompong Butpan; Zhiming Cai; Alberto J. Castro-Tirado; Huaqing Cheng; Weiwei Cui; Joseph Farah; Shaoyu Fu; Johan P.U. Fynbo; Xing Gao; Dawei Han; Xuhui Han; D. Andrew Howell; Jingwei Hu; Shuaiqing Jiang; Brajesh Kumar; Weihua Lei; Dongyue Li; Chengkui Li; Huaqiu Liu; Xing Liu; Yuan Liu; Xiaowei Liu; Alicia López-Oramas; David López Fernández-Nespral; Justyn R. Maund; Curtis McCully; Zexi Niu; Megan Newsome; Paul O’Brien; Haiwu Pan; Yu Pan; Estefania Padilla Gonzalez; Ismael Pérez-Fournon; Walter Silima; Hui Sun; Shengli Sun; Xiaojin Sun; Giacomo Terreran; Samaporn Tinyanont; Junxian Wang; Yanan Wang; Yun Wang; Klaas Wiersema; Yunfei Xu; Yongquan Xue; Yi Yang; Fabao Zhang; Juan Zhang; Pinpin Zhang; Wenda Zhang; Yonghe Zhang; Haisheng Zhao; Zipei Zhu; Liping Xin; Zhuheng Yao; Bertrand Cordier; Jianyan Wei; Yulei Qiu; Frédéric Daigne
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AT 2019aalc: A Bowen Fluorescence Flare with a Precursor Flare in an Active Galactic Nucleus
err2025-08-13
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PREAI
errMarzena Śniegowska; Benny Trakhtenbrot; Lydia Makrygianni; Iair Arcavi; Claudio Ricci; Sara Faris; Biswaraj Palit; D. Andrew Howell; Megan Newsome; Joseph Farah; Curtis McCully; Estefania Padilla-Gonzalez; Giacomo Terreran
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JWST and Ground-based Observations of the Type Iax Supernovae SN 2024pxl and SN 2024vjm: Evidence for Weak Deflagration Explosions
err2025-08-13
err0
PREAI
errLindsey A. Kwok; Mridweeka Singh; Saurabh W. Jha; Stéphane Blondin; Raya Dastidar; Conor Larison; Adam A. Miller; Jennifer E. Andrews; Moira Andrews; G. C. Anupama; Katie Auchettl; Dominik Bánhidi; Barnabas Barna; K. Azalee Bostroem; Thomas G. Brink; Régis Cartier; Ping Chen; Collin T. Christy; David A. Coulter; Sofia Covarrubias; Kyle W. Davis; Connor B. Dickinson; Yize Dong; Joseph R. Farah; Alexei V. Filippenko; Andreas Flörs; Ryan J. Foley; Noah Franz; Christoffer Fremling; Lluís Galbany; Anjasha Gangopadhyay; Aarna Garg; Peter Garnavich; Elinor L. Gates; Or Graur; Alexa C. Gordon; Daichi Hiramatsu; Emily Hoang; D. Andrew Howell; Brian Hsu; Joel Johansson; Arti Joshi; Lordrick A. Kahinga; Ravjit Kaur; Sahana Kumar; Piramon Kumnurdmanee; Hanindyo Kuncarayakti; Natalie LeBaron; Chang Liu; Keiichi Maeda; Kate Maguire; Curtis McCully; Darshana Mehta; Luca M. Menotti; Anne J. Metevier; Kuntal Misra; C. Tanner Murphey; Megan Newsome; Estefania Padilla Gonzalez; Kishore C. Patra; Jeniveve Pearson; Anthony L. Piro; Abigail Polin; Aravind P. Ravi; Armin Rest; Nabeel Rehemtulla; Nicolas Meza Retamal; Olivia M. Robinson; César Rojas-Bravo; Devendra K. Sahu; David J. Sand; Brian P. Schmidt; Steve Schulze; Michaela Schwab; Manisha Shrestha; Matthew R. Siebert; Sunil Simha; Nathan Smith; Jesper Sollerman; Bhagya M. Subrayan; Tamás Szalai; Kirsty Taggart; Rishabh Singh Teja; Tea Temim; Jacco H. Terwel; Samaporn Tinyanont; Stefano Valenti; Jorge Anais Vilchez; József Vinkó; Aya L. Westerling; Yi Yang; WeiKang Zheng
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The Gravity Collective: A Comprehensive Analysis of the Electromagnetic Search for the Binary Neutron Star Merger GW190425
err2025-07-23
err0
PREAI
errD. A. Coulter; C. D. Kilpatrick; D. O. Jones; R. J. Foley; J. Anais Vilchez; I. Arcavi; K. E. Clever; G. Dimitriadis; A. V. Filippenko; N. Muñoz-Elgueta; A. L. Piro; P. J. Quiñonez; G. S. Rahman; C. Rojas-Bravo; M. R. Siebert; H. E. Stacey; J. J. Swift; W. Zheng; J. S. Bloom; M. J. Bustamante-Rosell; K. W. Davis; J. Kutcka; P. Macias; P. McGill; E. Ramirez-Ruiz; K. Siellez; S. Tinyanont; S. B. Cenko; M. R. Drout; R. Hausen; D. Andrew Howell; W. V. Jacobson-Galán; D. Kasen; C. McCully; A. Rest; K. Taggart; S. Valenti
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Progenitor insights of Type IIP SN 2018pq: a comprehensive photometric and spectroscopic study
err2025-07-01
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errOAAI
errDubey, Monalisa; Misra, Kuntal; Dastidar, Raya; Csoernyei, Geza; Dukiya, Naveen; Ailawadhi, Bhavya; Arcavi, Iair; Bostroem, K. Azalee; Hiramatsu, Daichi; Hosseinzadeh, Griffin; Howell, D. Andrew; Mccully, Curtis; Singh, Ajay Kumar
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A fast X-ray transient from a weak relativistic jet associated with a type Ic-BL supernova
err2025-06-26
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PREAI
errH. Sun; W.-X. Li; L.-D. Liu; H. Gao; X.-F. Wang; W. Yuan; B. Zhang; A. V. Filippenko; D. Xu; T. An; S. Ai; T. G. Brink; Y. Liu; Y.-Q. Liu; C.-Y. Wang; Q.-Y. Wu; X.-F. Wu; Y. Yang; B.-B. Zhang; W.-K. Zheng; T. Ahumada; Z.-G. Dai; J. Delaunay; N. Elias-Rosa; S. Benetti; S.-Y. Fu; D. A. Howell; Y.-F. Huang; M. M. Kasliwal; V. Karambelkar; R. Stein; W.-H. Lei; T.-Y. Lian; Z.-K. Peng; D. D. Frederiks; A. V. Ridnaia; D. S. Svinkin; X.-Y. Wang; A.-L. Wang; D.-M. Wei; J. An; M. Andrews; J.-M Bai; C.-Y. Dai; S. A. Ehgamberdiev; Z. Fan; J. Farah; H.-C. Feng; J. P. U. Fynbo; W.-J. Guo; Z. Guo; M.-K. Hu; J.-W. Hu; S.-Q. Jiang; J.-J. Jin; A. Li; J.-D. Li; R.-Z. Li; Y.-F. Liang; Z.-X. Ling; X. Liu; J.-R. Mao; C. McCully; D. Mirzaqulov; M. Newsome; E. Padilla Gonzalez; X. Pan; G. Terreran; S. Tinyanont; B.-T. Wang; L.-Z. Wang; X.-D. Wen; D.-F. Xiang; S.-J. Xue; J. Yang; Z.-P. Zhu; Z.-M. Cai; A. J. Castro-Tirado; F.-S. Chen; H.-L. Chen; T.-X. Chen; W. Chen; Y.-H. Chen; Y.-F. Chen; Y. Chen; H.-Q. Cheng; B. Cordier; C.-Z. Cui; W.-W. Cui; Y.-F. Dai; D.-W. Fan; H. Feng; J. Guan; D.-W. Han; D.-J. Hou; H.-B. Hu; M.-H. Huang; J. Huo; S.-M. Jia; Z.-Q. Jia; B.-W. Jiang; C.-C. Jin; G. Jin; E. Kuulkers; C.-K. Li; D.-Y. Li; J.-F. Li; L.-H. Li; M.-S. Li; W. Li; Z.-D. Li; C.-Z. Liu; H.-Y. Liu; H.-Q. Liu; M.-J. Liu; F.-J. Lu; L.-D. Luo; J. Ma; X. Mao; K. Nandra; P. O’Brien; H.-W. Pan; A. Rau; N. Rea; J. Sanders; L.-M. Song; S.-L. Sun; X.-J. Sun; Y. -Y. Tan; Q.-J. Tang; Y.-H. Tao; H. Wang; J. Wang; L. Wang; W.-X. Wang; Y.-L. Wang; Y.-S. Wang; D.-R. Xiong; H.-T. Xu; J.-J. Xu; X.-P. Xu; Y.-F. Xu; Z. Xu; C.-B. Xue; Y.-L. Xue; A.-L. Yan; H.-N. Yang; X.-T. Yang; Y.-J. Yang; C. Zhang; J. Zhang; M. Zhang; S.-N. Zhang; W.-D. Zhang; W.-J. Zhang; Y.-H. Zhang; Z. Zhang; Z. Zhang; Z.-L. Zhang; D.-H. Zhao; H.-S. Zhao; X.-F. Zhao; Z.-J. Zhao; Y.-L. Zhou; Y.-X. Zhu; Z.-C. Zhu; H. Zou
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SN 2021hpr: A Normal Type Ia Supernova Showing Excess Emission in the Early Rising Phase
err2025-05-08
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errOAAI
errIskandar, Abdusamatjan; Wang, Xiaofeng; Esamdin, Ali; Zeng, Xiangyun; Pellegrino, Craig; Yan, Shengyu; Liu, Jialian; Filippenko, Alexei V.; Howell, D. Andrew; McCully, Curtis; Brink, Thomas G.; Hu, Maokai; Yang, Yi; Zheng, WeiKang; Lu, Guoliang; Zhang, Jujia; Song, Cuiying; Huang, Ruifeng; Amaro, Rachael C.; Bai, Chunhai; Dettman, Kyle G.; Galbany, Lluis; Hiramatsu, Daichi; Azalee, Bostroem K.; Itagaki, Koichi; Jha, Saurabh W.; Ma, Shuguo; Sand, David J.; Andrews, Jennifer E.; Jencson, Jacob; Milne, Peter; Pearson, Jeniveve; Shrestha, Manisha; Smith, Nathan; Koenyves-Toth, Reka; Wyatt, Samuel; Zhang, Xuan; Yaqup, Shahidin; Wang, Letian; Zhang, Mengfan
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Shock-cooling Constraints via Early-time Observations of the Type IIb SN 2022hnt
err2025-04-25
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errOAAI
errFarah, Joseph R.; Howell, D. Andrew; Terreran, Giacomo; Irani, Ido; Morag, Jonathan; Pellegrino, Craig; McCully, Curtis; Newsome, Megan; Gonzalez, Estefania Padilla; Bostroem, K. Azalee; Hosseinzadeh, Griffin; Andrews, Moira; Prust, Logan; Hiramatsu, Daichi
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Detection of an Orphan X-Ray Flare from a Blazar Candidate EP240709a with the Einstein Probe
err2025-04-21
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errOAAI
errLiu, Mingjun; Zhang, Yijia; Wang, Yun; Xue, Rui; Buckley, David; Howell, D. Andrew; Jin, Chichuan; Li, Wenxiong; Monageng, Itumeleng; Pan, Haiwu; Sun, Ning-Chen; Tinyanont, Samaporn; Wang, Lingzhi; Yuan, Weimin; An, Jie; Andrews, Moira; Anutarawiramkul, Rungrit; Butpan, Pathompong; Chen, Yong; Cheng, Huaqing; Cui, Weiwei; Dai, Cui-Yuan; Dai, Lixin; Farah, Joseph; Feng, Hua; Fu, Shaoyu; Guo, Zhen; Jia, Shumei; Jiang, Shuaiqing; Li, An; Li, Chengkui; Li, Dongyue; Lian, Tianying; Liang, Yifang; Liu, Heyang; Liu, Xing; Liu, Yuan; Mao, Jirong; Mccully, Curtis; Newsome, Megan; Padilla Gonzalez, Estefania; Pan, Xin; Sun, Xinxiang; Terreran, Giacomo; Wang, Ze-Rui; Wu, Qinyu; Xiao, Hubing; Xiong, Dingrong; Xu, Dong; Xu, Xinpeng; Xue, Suijian; Yang, Haonan; Yang, Jun; Zhang, Jin; Zhang, Wenda; Zhang, Wenjie; Zou, Hu
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A Multiwavelength Autopsy of the Interacting Type IIn Supernova 2020ywx: Tracing Its Progenitor Mass-loss History for 100 Yr Before Death
err2025-04-11
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errOAAI
errBaer-Way, Raphael; Chandra, Poonam; Modjaz, Maryam; Kumar, Sahana; Pellegrino, Craig; Chevalier, Roger; Crawford, Adrian; Sarangi, Arkaprabha; Smith, Nathan; Maeda, Keiichi; Nayana, A. J.; Filippenko, Alexei V.; Andrews, Jennifer E.; Arcavi, Iair; Bostroem, K. Azalee; Brink, Thomas G.; Dong, Yize; Dwarkadas, Vikram; Farah, Joseph R.; Howell, D. Andrew; Hiramatsu, Daichi; Hosseinzadeh, Griffin; Mccully, Curtis; Meza, Nicolas; Newsome, Megan; Padilla Gonzalez, Estefania; Pearson, Jeniveve; Sand, David J.; Shrestha, Manisha; Terreran, Giacomo; Valenti, Stefano; Wyatt, Samuel; Yang, Yi; Zheng, Weikang
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