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Browsing by Author "Bostroem, K. Azalee"

Browsing by Author "Bostroem, K. Azalee"

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  • JWST and ground-based observations of the Type Iax Supernovae SN 2024pxl and SN 2024vjm: evidence for Weak Deflagration Explosions 
    Kwok, Lindsey A; Singh, Mridweeka; Jha, Saurabh W; Blondin, Stephane; Dastidar, Raya; Larison, Conor; Miller, Adam A; Andrews, Jennifer E; Andrews, Moira; Anupama, G. C; Auchettl, Katie; Banhidi, Dominik; Barna, Barnabas; Bostroem, K. Azalee; Brink, Thomas G; Cartier, Regis; Chen, Ping; Christy, Collin T; Coulter, David A; Covarrubias, Sofia; Davis, Kyle W; Dickinson, Connor B; Dong, Yize; Farah, Joseph R; Filippenko, Alexei V; Flors, Andreas; Foley, Ryan J; Franz, Noah; Fremling, Christoffer; Galbany, Lluis; Gangopadhyay, A; Garg, Aarna; Garnavich, Peter; Gates, Elinor L; Graur, Or; Gordon, Alexa C; Hiramatsu, Daichi; Hoang, Emily; Howell, D. Andrew; Hsu, Brian; Johansson, J; Joshi, Arti; Kahinga, Lordrick A; Kaur, Ravjit; Kumar, Sahana; Kumnurdmanee, Piramon; Kuncarayakti, H; LeBaron, Natalie; Liu, Chang; Maeda, Keiichi; Maguire, Kate; McCully, Curtis; Mehta, Darshana; Menotti, Luca M; Metevier, Anne J; Misra, K; Murphey, C. Tanner; Newsome, Megan; Gonzalez, Estefania Padilla; Patra, Kishore C; Pearson, Jeniveve; Piro, Anthony L; Polin, Abigail; Ravi, Aravind P; Rest, Armin; Rehemtulla, Nabeel; Retamal, Nicolas Meza; Robinson, Olivia M; Rojas-Bravo, Cesar; Sahu, D. K; Sand, David J; Schmidt, Brian P; Schulze, Steve; Schwab, Michaela; Shrestha, Manisha; Siebert, Matthew R; Simha, Sunil; Smith, Nathan; Sollerman, Jesper; Subrayan, Bhagya M; Szalai, Tamas; Taggart, Kirsty; Teja, Rishabh Singh; Temim, Tea; Terwel, Jacco H; Tinyanont, Samaporn; Valenti, S; Vilchez, Jorge Anais; Vinko, Jozsef; Westerling, Aya L; Yang, Yi; Zheng, WeiKang (American Astronomical Society, 2025-08-20)
    We present panchromatic optical + near-infrared (NIR) + mid-infrared (MIR) observations of the intermediate luminosity Type Iax supernova (SN Iax) 2024pxl and the extremely low-luminosity SN Iax 2024vjm. JWST observations ...
  • JWST spectroscopy of SNe Ia 2022aaiq and 2024gy: Evidence for enhanced central stable Ni abundance and a deflagration-to-detonation transition 
    Kwok, Lindsey A; Liu, Chang; Jha, Saurabh W; Blondin, Stephane; Larison, Conor; Miller, Adam A; Dai, Mi; Foley, Ryan J; Filippenko, A. V; Andrews, Jennifer E; Andrews, Moira; Auchettl, Katie; Badenes, Carles; Bostroem, K. Azalee; Brink, Thomas G; Koelln, Cristine; Davis, Kyle W; Flors, Andreas; Galbany, L; Graur, Or; Howell, D. A; Kumar, Sahana; Konyves-Toth, Reka; LeBaron, Natalie; Macrie, Colin W; Maeda, K; Maguire, Kate; McCully, Curtis; Retamal, Nicolas Meza; Padilla Gonzalez, E; Pakmor, Rudiger; Pearson, Jeniveve; Piro, Anthony L; Polin, Abigail; Rehemtulla, Nabeel; Cesar, Rojas-Bravo; Sand, D. J; Sangkachan, Chita; Schwab, Michaela; Sears, Huei; Singh, Mridweeka; Subrayan, Bhagya M; Taggart, Kirsty; Temim, Tea; Terwel, Jacco H; Tinyanont, S; Vinko, J; Wang, Xiaofeng; Wheeler, J. C; Yang, Y; Zheng, W (American Astronomical Society, 2026-07-01)
    We present optical + near-infrared + mid-infrared (MIR) observations of the normal Type Ia supernovae (SNe Ia) 2022aaiq and 2024gy in the nebular phase, continuously spanning 0.35─28 μm. Medium-resolution JWST spectroscopy ...
  • A multiwavelength autopsy of the interacting type IIn supernova 2020ywx: tracing its progenitor mass-loss history for 100 yr before death 
    Baer-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; Gonzalez, Estefania Padilla; Pearson, Jeniveve; Sand, David J; Shrestha, Manisha; Terreran, Giacomo; Valenti, Stefano; Wyatt, Samuel; Yang, Yi; Zheng, WeiKang (American Astronomical Society, 2025-04-20)
    While the subclass of interacting supernovae (SNe) with narrow hydrogen emission lines (Type IIn supernovae (SNe IIn)) consists of some of the longest-lasting and brightest supernovae (SNe) ever discovered, their progenitors ...
  • Observational Properties of a Bright Type lax SN 2018cni and a Faint Type Iax SN 2020kyg 
    Singh, Mridweeka; Sahu, D. K; Dastidar, Raya; Barna, Barnabas; Misra, Kuntal; Gangopadhyay, Anjasha; Howell, D. Andrew; Jha, Saurabh W.; Im, Hyobin; Taggart, Kirsty; Andrews, Jennifer; Hiramatsu, Daichi; Teja, Rishabh Singh; Pellegrino, Craig; Foley, Ryan J.; Joshi, Arti; Anupama, G. C; Bostroem, K. Azalee; Burke, Jamison; Camacho-Neves, Yssavo; Dutta, Anirban; Kwok, Lindsey A.; McCully, Curtis; Pan, Yen-Chen; Siebert, Matt; Srivastav, Shubham; Szalai, Tamás; Swift, Jonathan J.; Yang, Grace; Zhou, Henry; DiLullo, Nico; Scheer, Jackson (American Astronomical Society, 2023-08-10)
    We present the optical photometric and spectroscopic analysis of two Type Iax supernovae (SNe), 2018cni and 2020kyg. SN 2018cni is a bright Type Iax SN (MV,peak = −17.81 ± 0.21 mag), whereas SN 2020kyg (MV,peak = −14.52 ± ...
  • Optical studies of a bright Type Iax supernova SN 2020rea 
    Singh, Mridweeka; Misra, Kuntal; Sahu, D. K; Ailawadhi, Bhavya; Dutta, Anirban; Howell, D. Andrew; Anupama, G. C; Bostroem, K. Azalee; Burke, Jamison; Dastidar, Raya; Gangopadhyay, Anjasha; Hiramatsu, Daichi; Im, Hyobin; McCully, Curtis; Pellegrino, Craig; Srivastav, Shubham; Teja, Rishabh Singh (Oxford University Press on behalf of Royal Astronomical Society, 2022-12)
    We present optical photometric and spectroscopic analysis of a Type Iax supernova (SN) 2020rea situated at the brighter luminosity end of Type Iax supernovae (SNe). The light curve decline rate of SN 2020rea is m15(g) = ...
  • Photometry and spectroscopy of SN 2024pxl: A luminosity link among type Iax supernovae 
    Singh, Mridweeka; Kwok, Lindsey A; Jha, Saurabh W; Dastidar, R; Larison, Conor; Filippenko, A. V; Andrews, Jennifer E; Andrews, Moira; Anupama, G. C; Arunachalam, Prasiddha; Auchettl, Katie; Banhidi, Dominik; Barna, Barnabas; Bostroem, K. Azalee; Brink, Thomas G; Cartier, Regis; Chen, Ping; Christy, Collin T; Coulter, David A; Covarrubias, Sofia; Davis, Kyle W; Dickinson, Connor B; Dong, Yize; Farah, Joseph R; Flors, Andreas; Foley, Ryan J; Franz, Noah; Fremling, Christoffer; Galbany, L; Gangopadhyay, A; Garg, Aarna; Gates, Elinor L; Graur, Or; Gordon, Alexa C; Hiramatsu, Daichi; Hoang, Emily; Howell, D. A; Hsu, Brian; Johansson, J; Joshi, Arti; Kahinga, Lordrick A; Kaur, Ravjit; Kumar, Sahana; Kumnurdmanee, Piramon; Kuncarayakti, H; LeBaron, Natalie; Lidman, C; Liu, Chang; Maeda, K; Maguire, Kate; Martin, Bailey; McCully, Curtis; Mehta, Darshana; Menotti, Luca M; Metevier, Anne J; Miller, Adam A; Misra, K; Murphey, C. Tanner; Newsome, Megan; Padilla Gonzalez, E; Patra, Kishore C; Pearson, Jeniveve; Piro, Anthony L; Polin, Abigail; Ravi, Aravind P; Rest, Armin; Rehemtulla, Nabeel; Retamal, Nicolas Meza; Robinson, Olivia M; Rojas-Bravo, Cesar; Sahu, D. K; Sand, D. J; Schmidt, B. P; Schulze, Steve; Schwab, Michaela; Shrestha, Manisha; Siebert, Matthew R; Simha, Sunil; Smith, Nathan; Sollerman, Jesper; Srivastav, S; Subrayan, Bhagya M; Szalai, Tamas; Taggart, Kirsty; Teja, Rishabh Singh; Terwel, Jacco H; Tinyanont, S; Valenti, S; Vinko, J; Westerling, Aya L; Wheeler, J. C; Yang, Yi; Zheng, W (American Astronomical Society, 2026-03-10)
    We present extensive ultraviolet to optical photometric and optical to near-infrared (NIR) spectroscopic follow-up observations of the nearby intermediate-luminosity (MV = −16.81 ± 0.19 mag) Type Iax supernovae (SNe Iax) ...
  • SN 2019nyk: A rapidly declining Type II supernova with early interaction signatures 
    Dastidar, Raya; Pignata, Giuliano; Dukiya, Naveen; Misra, Kuntal; Hiramatsu, Daichi; Silva-Farfan, Javier; Howel, D. Andrew; Bostroem, K. Azalee; Singh, Mridweeka; Gangopadhyay, Anjasha; Kumar, Amit; McCully, Curtis (EDP Sciences, 2024-05)
    We present an optical photometric and spectroscopic analysis of the fast-declining hydrogen-rich Type II supernova (SN) 2019nyk. The light curve properties of SN 2019nyk align well with those of other fast-declining Type ...
  • SN 2020udy: A New Piece of the Homogeneous Bright Group in the Diverse Iax Subclass 
    Singh, Mridweeka; Sahu, D. K; Barna, Barnabas; Gangopadhyay, Anjasha; Dastidar, Raya; Teja, Rishabh Singh; Misra, Kuntal; Howell, D. Andrew; Wang, Xiaofeng; Mo, Jun; Yan, Shengyu; Hiramatsu, Daichi; Pellegrino, Craig; Anupama, G. C; Joshi, Arti; Bostroem, K. Azalee; Burke, Jamison; McCully, Curtis; Rama Subramanian, V; Li, Gaici; Xi, Gaobo; Li, Xin; Li, Zhitong; Srivastav, Shubham; Im, Hyobin; Dutta, Anirban (American Astronomical Society, 2024-04-10)
    We present optical observations and analysis of the bright type Iax supernova SN 2020udy hosted by NGC 0812. The evolution of the light curve of SN 2020udy is similar to that of other bright type Iax SNe. Analytical modeling ...
  • SN 2021foa: the bridge between SN IIn and Ibn 
    Gangopadhyay, A; Dukiya, Naveen; Moriya, Takashi J; Tanaka, M; Maeda, K; Howell, D. A; Singh, Mridweeka; Singh, Avinash; Sollerman, Jesper; Kawabata, K. S; Brennan, Sean J; Pellegrino, Craig; Dastidar, R; Nakaoka, Tatsuya; Kawabata, Miho; Misra, K; Schulze, Steve; Chandra, P; Taguchi, Kenta; Sahu, D. K; McCully, Curtis; Bostroem, K. Azalee; Gonzalez, Estefania Padilla; Newsome, Megan; Hiramatsu, Daichi; Takei, Yuki; Yamanaka, Masayuki; Tajitsu, A; Isogai, Keisuke (Oxford University Press on behalf of Royal Astronomical Society, 2025-03)
    We present the long-term photometric and spectroscopic analysis of a transitioning SN IIn/Ibn from −10.8 d to 150.7 d post V -band maximum. SN 2021foa shows prominent He I lines comparable in strength to the H α line around ...
  • A study of two Type IIb supernovae: SNe 2008aq and 2019gaf 
    Singh, Mridweeka; Sahu, D. K; Dastidar, R; Teja, Rishabh Singh; Gangopadhyay, A; Anupama, G. C; Howell, D. A; Bostroem, K. Azalee; McCully, Curtis; Burke, Jamison; Joshi, Arti; Hiramatsu, Daichi; Im, Hyobin; Srivastav, S; Misra, K (Oxford University Press on behalf of Royal Astronomical Society, 2026-02)
    We present photometric and spectroscopic studies of two core-collapse supernovae (SNe) 2008aq and 2019gaf in the optical wav elengths. Light curv e and spectral sequence of both the SNe are similar to those of other Type ...

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