Results 121 to 130 of about 2,618 (181)

Peculiar Type II supernovae from blue supergiants [PDF]

, 2019
The vast majority of Type II supernovae (SNeII) are produced by red supergiants, but SN 1987A revealed that blue supergiants (BSGs) can produce members of this class as well, albeit with some peculiar properties.
Kleiser, Io K. W., Matheson, Thomas, Young, Timothy R., Kasen, Daniel, Nugent, Peter E., Chornock, Ryan, Li, Weidong, Challis, Peter, Silverman, Jeffrey M., Poznanski, Dovi, Ganeshalingam, Mohan, Kirshner, Robert P., Filippenko, Alexei V.   +12 more
core   +1 more source

Discovery of a Variable Yellow Supergiant Progenitor for the Type IIb SN 2024abfo

The Astrophysical Journal Letters
We report the discovery of a progenitor candidate for the Type IIb SN 2024abfo using multiepoch pre-explosion images from the Hubble Space Telescope and the Dark Energy Camera Legacy Survey.
Zexi Niu, Ning-Chen Sun, Justyn R. Maund, Zhen Guo, Wenxiong Li, Meng Sun, Jifeng Liu   +6 more
doaj   +1 more source

Discovery of a Dusty Yellow Supergiant Progenitor for the Type IIb SN 2017gkk

The Astrophysical Journal Letters
Type IIb supernovae are an important subclass of stripped-envelope supernovae (SNe), which show H lines only at early times. Their progenitors are believed to contain a low-mass H envelope before explosion. This work reports the discovery of a progenitor
Zexi Niu, Ning-Chen Sun, Jifeng Liu
doaj   +1 more source

Type II supernovae as probes of environment metallicity: observations of host He II regions [PDF]

, 2019
Context. Spectral modelling of type II supernova atmospheres indicates a clear dependence of metal line strengths on progenitor metallicity. This dependence motivates further work to evaluate the accuracy with which these supernovae can be used as ...
Dessart, L., Anderson, J. P., Kuncarayakti, H., Boffin, H. M. J., Hamuy, M., Galbany, L., Gutiérrez, C. P., Jaeger, T. de, Stritzinger, M. D., Morrell, Nidia Irene, Phillips, M. M., Folatelli, Gastón, Prieto, J. L.   +12 more
core  

JWST MIRI Imager Observations of Supernova SN 1987A

The Astrophysical Journal
There exist very few mid-infrared (IR) observations of supernovae (SNe) in general. Therefore, SN 1987A, the closest visible SN in 400 yr, gives us the opportunity to explore the mid-IR properties of SNe, the dust in their ejecta, and the surrounding ...
P. Bouchet, R. Gastaud, A. Coulais, M. J. Barlow, C. Fransson, P. J. Kavanagh, J. Larsson, T. Temim, O. C. Jones, A. S. Hirschauer, T. Tikkanen, J. A. D. L. Blommaert, O. D. Fox, A. Glasse, N. Habel, J. Hjorth, J. Jaspers, O. Krause, R. M. Lau, L. Lenkić, M. Meixner, O. Nayak, A. Rest, B. Sargent, R. Wesson, G. S. Wright, L. Colina, E. F. van Dishoeck, M. Güdel, Th. Henning, P.-O. Lagage, G. Östlin, T. P. Ray, B. Vandenbussche   +33 more
doaj   +1 more source

Revealing the Diversity of Type IIn Supernova Progenitors through Their Environments

The Astrophysical Journal
Type IIn supernovae (SNe IIn) are hydrogen-rich explosions embedded in dense circumstellar medium, which gives rise to their characteristic narrow hydrogen emission lines.
Zexi Niu, Ning-Chen Sun, Emmanouil Zapartas, Conor L. Ransome, Justyn R. Maund, Cesar Rojas-Bravo, Jifeng Liu   +6 more
doaj   +1 more source

Type II Supernovae as Probes of Cosmology [PDF]

, 2009
- Constraining the cosmological parameters and understanding Dark Energy have tremendous implications for the nature of the Universe and its physical laws.
Livio, Mario, Matheson, Thomas, Nomoto, Ken'ichi, Dessart, Luc, Ellis, Richard S, Wood-Vasey, W Michael, Bloom, Joshua S, Hicken, Malcolm, Goobar, Ariel, D'Andrea, Christopher B, Valle, Massimo Della, Poznanski, Dovi, Dyk, Schuyler D Van, Krisciunas, Kevin L, Quimby, Robert, Sullivan, Mark, Baron, Eddie, Neill, James D, Hamuy, Mario, Kasen, Daniel N, Sako, Masao, Nugent, Peter E, Thomas, Rollin C, Gal-Yam, Avishay, Li, Weidong, Blondin, Stephane, Turatto, Massimo, Marion, Howie, Leonard, Douglas C   +28 more
core  

SN 2023ixf in Messier 101: The Twilight Years of the Progenitor as Seen by Pan-STARRS

The Astrophysical Journal
The nearby type II supernova, SN 2023ixf in M101 exhibits signatures of early time interaction with circumstellar material in the first week postexplosion. This material may be the consequence of prior mass loss suffered by the progenitor, which possibly
Conor L. Ransome, V. Ashley Villar, Anna Tartaglia, Sebastian Javier Gonzalez, Wynn V. Jacobson-Galán, Charles D. Kilpatrick, Raffaella Margutti, Ryan J. Foley, Matthew Grayling, Yuan Qi Ni, Ricardo Yarza, Christine Ye, Katie Auchettl, Thomas de Boer, Kenneth C. Chambers, David A. Coulter, Maria R. Drout, Diego Farias, Christa Gall, Hua Gao, Mark E. Huber, Adaeze L. Ibik, David O. Jones, Nandita Khetan, Chien-Cheng Lin, Collin A. Politsch, Sandra I. Raimundo, Armin Rest, Richard J. Wainscoat, S. Karthik Yadavalli, Yossef Zenati   +30 more
doaj   +1 more source

Observational diversity of bright long-lived Type II supernovae [PDF]

Publisher Copyright: © The Authors 2025.Context. In various types of supernovae (SNe), strong interaction between the SN ejecta and circumstellar material (CSM) has been reported.
Fraser, M., Ferrari, Lucía, Sollerman, J., Sollerman, Jesper, Reynolds, T. M., Kuncarayakti, H., Guti'errez, C. P., Ferrari, L., Fraser, Morgan, Inserra, Cosimo, Chen, T. W., Müller-Bravo, T. E., Gutiérrez, Claudia P., Anderson, Joseph P., Gromadzki, Mariusz, Reguitti, A., Mattila, S., Pignata, Giuliano, Young, D. R., Müller-Bravo, Tomás E., Gonzalez-Bañuelos, Maider, Petrushevska, Tanja, Pessi, P. J., González-Bañuelos, M., Reynolds, Thomas M., Mattila, Seppo, Anderson, J. P., Maeda, K., Moran, S., Kuncarayakti, Hanindyo, Gromadzki, M., Reguitti, Andrea, Ragosta, F., Kopsacheili, M., Kopsacheili, Maria, Chen, T. -W., Gutiérrez, C. P., Pignata, G., Nagao, T., Cartier, R., Lundqvist, P., Petrushevska, T., Moran, Shane, Nagao, Tohru, Inserra, C.   +44 more
core   +1 more source

The Red Supergiant Progenitor Luminosity Problem

The Astrophysical Journal
Analysis of pre-explosion imaging has confirmed red supergiants (RSGs) as the progenitors to Type II-P supernovae (SNe). However, extracting an RSG's luminosity requires assumptions regarding the star’s temperature or spectral type and the corresponding ...
Emma R. Beasor, Nathan Smith, Jacob E. Jencson   +2 more
doaj   +1 more source