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Photometry and Spectroscopy of SN 2024pxl: A Luminosity Link Among Type Iax Supernovae

Fuente: arXiv

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Detalles Bibliográficos
Autores principales:	Singh, Mridweeka, Kwok, Lindsey A., Jha, Saurabh W., Dastidar, R., Larison, Conor, Filippenko, Alexei V., Andrews, Jennifer E., Andrews, Moira, Anupama, G. C., Arunachalam, Prasiddha, Auchettl, Katie, BÁnhidi, Dominik, Barna, Barnabas, Bostroem, K. Azalee, Brink, Thomas G., Cartier, RÉgis, Chen, Ping, Christy, Collin T., Coulter, David A., Covarrubias, Sofia, Davis, Kyle W., Dickinson, Connor B., Dong, Yize, Farah, Joseph, FlÖrs, Andreas, Foley, Ryan J., Franz, Noah, Fremling, Christoffer, Galbany, LluÍs, Gangopadhyay, Anjasha, Garg, Aarna, Gates, Elinor L., Graur, Or, Gordon, Alexa C., Hiramatsu, Daichi, Hoang, Emily, Howell, D. Andrew, Hsu, Brian, Johansson, Joel, Joshi, Arti, Kahinga, Lordrick A., Kaur, Ravjit, Kumar, Sahana, Kumnurdmanee, Piramon, Kuncarayakti, Hanindyo, Lebaron, Natalie, Lidman, C., Liu, Chang, Maeda, Keiichi, Maguire, Kate, Martin, Bailey, Mccully, Curtis, Mehta, Darshana, Menotti, Luca M., Metevier, Anne J., Miller, A. A., Misra, Kuntal, 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, O. M., Rojas-Bravo, CÉsar, Sahu, Devendra K., Sand, David J., Schmidt, Brian P., Schulze, Steve, Schwab, Michaela, Shrestha, Manisha, Siebert, Matthew R., Simha, Sunil, Smith, Nathan, Sollerman, Jesper, Srivastav, Shubham, Subrayan, Bhagya M., Szalai, TamÁs, Taggart, Kirsty, Teja, Rishabh Singh, Terwel, Jacco H., Tinyanont, Samaporn, Valenti, Stefano, VinkÓ, JÓzsef, Westerling, Aya L., Wheeler, J. Craig, Yang, Yi, Zheng, Weikang
Formato:	Preprint
Publicado:	2025
Materias:	High Energy Astrophysical Phenomena
Acceso en línea:	Acceder al recurso
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

_version_	1866914302402756608
author	Singh, Mridweeka Kwok, Lindsey A. Jha, Saurabh W. Dastidar, R. Larison, Conor Filippenko, Alexei V. Andrews, Jennifer E. Andrews, Moira Anupama, G. C. Arunachalam, Prasiddha Auchettl, Katie BÁnhidi, Dominik Barna, Barnabas Bostroem, K. Azalee Brink, Thomas G. Cartier, RÉgis Chen, Ping Christy, Collin T. Coulter, David A. Covarrubias, Sofia Davis, Kyle W. Dickinson, Connor B. Dong, Yize Farah, Joseph FlÖrs, Andreas Foley, Ryan J. Franz, Noah Fremling, Christoffer Galbany, LluÍs Gangopadhyay, Anjasha Garg, Aarna Gates, Elinor L. Graur, Or Gordon, Alexa C. Hiramatsu, Daichi Hoang, Emily Howell, D. Andrew Hsu, Brian Johansson, Joel Joshi, Arti Kahinga, Lordrick A. Kaur, Ravjit Kumar, Sahana Kumnurdmanee, Piramon Kuncarayakti, Hanindyo Lebaron, Natalie Lidman, C. Liu, Chang Maeda, Keiichi Maguire, Kate Martin, Bailey Mccully, Curtis Mehta, Darshana Menotti, Luca M. Metevier, Anne J. Miller, A. A. Misra, Kuntal 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, O. M. Rojas-Bravo, CÉsar Sahu, Devendra K. Sand, David J. Schmidt, Brian P. Schulze, Steve Schwab, Michaela Shrestha, Manisha Siebert, Matthew R. Simha, Sunil Smith, Nathan Sollerman, Jesper Srivastav, Shubham Subrayan, Bhagya M. Szalai, TamÁs Taggart, Kirsty Teja, Rishabh Singh Terwel, Jacco H. Tinyanont, Samaporn Valenti, Stefano VinkÓ, JÓzsef Westerling, Aya L. Wheeler, J. Craig Yang, Yi Zheng, Weikang
author_facet	Singh, Mridweeka Kwok, Lindsey A. Jha, Saurabh W. Dastidar, R. Larison, Conor Filippenko, Alexei V. Andrews, Jennifer E. Andrews, Moira Anupama, G. C. Arunachalam, Prasiddha Auchettl, Katie BÁnhidi, Dominik Barna, Barnabas Bostroem, K. Azalee Brink, Thomas G. Cartier, RÉgis Chen, Ping Christy, Collin T. Coulter, David A. Covarrubias, Sofia Davis, Kyle W. Dickinson, Connor B. Dong, Yize Farah, Joseph FlÖrs, Andreas Foley, Ryan J. Franz, Noah Fremling, Christoffer Galbany, LluÍs Gangopadhyay, Anjasha Garg, Aarna Gates, Elinor L. Graur, Or Gordon, Alexa C. Hiramatsu, Daichi Hoang, Emily Howell, D. Andrew Hsu, Brian Johansson, Joel Joshi, Arti Kahinga, Lordrick A. Kaur, Ravjit Kumar, Sahana Kumnurdmanee, Piramon Kuncarayakti, Hanindyo Lebaron, Natalie Lidman, C. Liu, Chang Maeda, Keiichi Maguire, Kate Martin, Bailey Mccully, Curtis Mehta, Darshana Menotti, Luca M. Metevier, Anne J. Miller, A. A. Misra, Kuntal 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, O. M. Rojas-Bravo, CÉsar Sahu, Devendra K. Sand, David J. Schmidt, Brian P. Schulze, Steve Schwab, Michaela Shrestha, Manisha Siebert, Matthew R. Simha, Sunil Smith, Nathan Sollerman, Jesper Srivastav, Shubham Subrayan, Bhagya M. Szalai, TamÁs Taggart, Kirsty Teja, Rishabh Singh Terwel, Jacco H. Tinyanont, Samaporn Valenti, Stefano VinkÓ, JÓzsef Westerling, Aya L. Wheeler, J. Craig Yang, Yi Zheng, Weikang
contents	We present extensive ultraviolet to optical photometric and optical to near-infrared (NIR) spectroscopic follow-up observations of the nearby intermediate-luminosity ($M_V = -16.81\pm0.19$~mag) Type Iax supernova (SN) 2024pxl in NGC 6384. SN~2024pxl exhibits a faster light curve than the high-luminosity members of this class, and slower than low-luminosity events. The observationally well-constrained rise time of $\sim$11 days and an estimated synthesized $^{56}$Ni mass of 0.03\, M$_\odot$, based on analytical modeling of the integrated spectral energy distribution light curve, are consistent with models of the weak deflagration of a carbon-oxygen white dwarf. Our optical spectral sequence of SN~2024pxl shows weak \ion{Si}{2} lines and spectral evolution similar to other high-luminosity Type Iax SNe, but also a prominent early-time \ion{C}{2} line, like lower-luminosity Type Iax SNe. The late-time optical spectrum of SN~2024pxl closely matches that of SN~2014dt, and its NIR spectral evolution aligns with that of other well-studied, high-luminosity Type Iax SNe. The spectral-line expansion velocities of SN~2024pxl are at the lower end of the Type Iax SN velocity distribution, and the velocity distribution of iron-group elements compared to intermediate-mass elements suggests that the ejecta are mixed on large scales, as expected in pure deflagration models. SN~2024pxl exhibits characteristics intermediate between those of high-luminosity and low-luminosity Type~Iax SNe, further establishing a link across this diverse class.
format	Preprint
id	arxiv_https___arxiv_org_abs_2505_02943
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	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, Alexei V. Andrews, Jennifer E. Andrews, Moira Anupama, G. C. Arunachalam, Prasiddha Auchettl, Katie BÁnhidi, Dominik Barna, Barnabas Bostroem, K. Azalee Brink, Thomas G. Cartier, RÉgis Chen, Ping Christy, Collin T. Coulter, David A. Covarrubias, Sofia Davis, Kyle W. Dickinson, Connor B. Dong, Yize Farah, Joseph FlÖrs, Andreas Foley, Ryan J. Franz, Noah Fremling, Christoffer Galbany, LluÍs Gangopadhyay, Anjasha Garg, Aarna Gates, Elinor L. Graur, Or Gordon, Alexa C. Hiramatsu, Daichi Hoang, Emily Howell, D. Andrew Hsu, Brian Johansson, Joel Joshi, Arti Kahinga, Lordrick A. Kaur, Ravjit Kumar, Sahana Kumnurdmanee, Piramon Kuncarayakti, Hanindyo Lebaron, Natalie Lidman, C. Liu, Chang Maeda, Keiichi Maguire, Kate Martin, Bailey Mccully, Curtis Mehta, Darshana Menotti, Luca M. Metevier, Anne J. Miller, A. A. Misra, Kuntal 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, O. M. Rojas-Bravo, CÉsar Sahu, Devendra K. Sand, David J. Schmidt, Brian P. Schulze, Steve Schwab, Michaela Shrestha, Manisha Siebert, Matthew R. Simha, Sunil Smith, Nathan Sollerman, Jesper Srivastav, Shubham Subrayan, Bhagya M. Szalai, TamÁs Taggart, Kirsty Teja, Rishabh Singh Terwel, Jacco H. Tinyanont, Samaporn Valenti, Stefano VinkÓ, JÓzsef Westerling, Aya L. Wheeler, J. Craig Yang, Yi Zheng, Weikang High Energy Astrophysical Phenomena We present extensive ultraviolet to optical photometric and optical to near-infrared (NIR) spectroscopic follow-up observations of the nearby intermediate-luminosity ($M_V = -16.81\pm0.19$~mag) Type Iax supernova (SN) 2024pxl in NGC 6384. SN~2024pxl exhibits a faster light curve than the high-luminosity members of this class, and slower than low-luminosity events. The observationally well-constrained rise time of $\sim$11 days and an estimated synthesized $^{56}$Ni mass of 0.03\, M$_\odot$, based on analytical modeling of the integrated spectral energy distribution light curve, are consistent with models of the weak deflagration of a carbon-oxygen white dwarf. Our optical spectral sequence of SN~2024pxl shows weak \ion{Si}{2} lines and spectral evolution similar to other high-luminosity Type Iax SNe, but also a prominent early-time \ion{C}{2} line, like lower-luminosity Type Iax SNe. The late-time optical spectrum of SN~2024pxl closely matches that of SN~2014dt, and its NIR spectral evolution aligns with that of other well-studied, high-luminosity Type Iax SNe. The spectral-line expansion velocities of SN~2024pxl are at the lower end of the Type Iax SN velocity distribution, and the velocity distribution of iron-group elements compared to intermediate-mass elements suggests that the ejecta are mixed on large scales, as expected in pure deflagration models. SN~2024pxl exhibits characteristics intermediate between those of high-luminosity and low-luminosity Type~Iax SNe, further establishing a link across this diverse class.
title	Photometry and Spectroscopy of SN 2024pxl: A Luminosity Link Among Type Iax Supernovae
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2505.02943