Results 51 to 60 of about 2,618 (181)

Dust formation in primordial Type II supernovae [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
11 pages, LaTeX, 11 figures, MNRAS ...
Todini, Paolo, Ferrara, Andrea
openaire   +2 more sources

On the nature of the progenitors of three Type II-P supernovae: 2004et, 2006my and 2006ov [PDF]

, 2010
The pre-explosion observations of the Type II-P supernovae 2006my, 2006ov and 2004et are re-analysed. In the cases of supernovae 2006my and 2006ov we argue that the published candidate progenitors are not coincident with their respective supernova sites ...
Smartt, Stephen; id_orcid, R. M. Crockett, Smartt, S.J., Eldridge, John, Stephens, A.W., Ekdridge, J.J., Maund, J.R., Crockett...[et al.], R.M., S. Mattila, Mattila, Seppo, Pastorello, A., J. J. Eldridge, Maund, Justyn Robert, Pastorello, Andrea, J. R. Maund, A. Pastorello, Crockett, Rhonda, A. W. Stephens, S. J. Smartt   +18 more
core   +1 more source

JWST Observations of SN 2024ggi. II. NIRSpec Spectroscopy and CO Modeling at +285–385 Days past the Explosion

The Astrophysical Journal
We present James Webb Space Telescope (JWST) Near-Infrared Spectrograph observations of SN 2024ggi, spanning wavelengths of 1.7–5.5 μ m at +285.51 and +385.27 days postexplosion.
T. Mera, C. Ashall, P. Hoeflich, K. Medler, M. Shahbandeh, C. R. Burns, E. Baron, J. M. DerKacy, N. Morrell, J. Lu, J. T. Hinkle, P. A. Mazzali, E. Fereidouni, C. M. Pfeffer, S. Shiber, T. Temim, L. Galbany, D. A. Coulter, L. Ferrari, W. B. Hoogendam, E. Y. Hsiao, M. M. Phillips, B. J. Shappee   +22 more
doaj   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Optical observations of Type II supernovae

AIP Conference Proceedings, 2000
18 pages, 10 embedded figures, latex with aipproc style file included, to appear in "Cosmic Explosions" -- eds. S. Holt and W. W.
openaire   +2 more sources

Type II supernova energetics

The Astrophysical Journal, 1985
In this paper we exploit the fact that the collapsing core of a massive star, at the endpoint of its thermonuclear life, rapidly becomes hydrostatic after bouncing at nuclear densities. The energy transferred by pdV work from the inner unshocked core as it becomes hydrostatic to the bounce shock in the outer core is, to a good approximation, the ...
J. M. Lattimer, A. Burrows, A. Yahil
openaire   +1 more source

Bolometric Luminosities of Peculiar Type II-P Supernovae [PDF]

, 2018
In this work, I analyze the bolometric luminosities of several peculiar Type II-P supernovae which are thought to originate from the same class of blue supergiant progenitor stars as the famous SN 1987A.
Lusk, Jeremy
core  

Multimessenger Constraints on the Central Engine in SN 2023ixf: Neutron Star or Black Hole?

The Astrophysical Journal
The physical trigger of core-collapse supernovae (CC-SNe) is a central theme in modern surveys of the transient Universe. A multimessenger approach may provide a unique window to CC-SNe produced by a newly born neutron star (NS) or black hole (BH). Here,
Maryam Aghaei Abchouyeh, Maurice H.P.M. van Putten, Massimo Della Valle   +2 more
doaj   +1 more source

The Prevalence and Influence of Circumstellar Material around Hydrogen-rich Supernova Progenitors

The Astrophysical Journal, 2023
Narrow transient emission lines (flash-ionization features) in early supernova (SN) spectra trace the presence of circumstellar material (CSM) around the massive progenitor stars of core-collapse SNe.
Rachel J. Bruch, Avishay Gal-Yam, Ofer Yaron, Ping Chen, Nora L. Strotjohann, Ido Irani, Erez Zimmerman, Steve Schulze, Yi Yang, Young-Lo Kim, Mattia Bulla, Jesper Sollerman, Mickael Rigault, Eran Ofek, Maayane Soumagnac, Frank J. Masci, Christoffer Fremling, Daniel Perley, Jakob Nordin, S. Bradley Cenko, Anna Y. Q. Ho, S. Adams, Igor Adreoni, Eric C. Bellm, Nadia Blagorodnova, Kevin Burdge, Kishalay De, Richard G. Dekany, Suhail Dhawan, Andrew J. Drake, Dmitry A. Duev, Matthew Graham, Melissa L. Graham, Jacob Jencson, Emir Karamehmetoglu, Mansi M. Kasliwal, Shrinivas Kulkarni, A. A. Miller, James D. Neill, Thomas A. Prince, Reed Riddle, Benjamin Rusholme, Y. Sharma, Roger Smith, Niharika Sravan, Kirsty Taggart, Richard Walters, Lin Yan   +47 more
doaj   +1 more source

Effect of molecular perturbation on cocrystal formation: theophylline and its 8‐halo analogues with flavonoids

Acta Crystallographica Section C, EarlyView.
The tendency for alkaloid–flavonoid cocrystal formation is found to be markedly different for theophylline (Tph) compared to its 8‐halo analogues. Through screening with 13 common flavonoids, Tph is found to form cocrystals with six flavonoids, whereas 8‐Cl‐Tph and 8‐Br‐Tph each form cocrystals with just two, myricetin and kaempferol.
Weijian Ye, Herman H-Y. Sung, Ian D. Williams   +2 more
wiley   +1 more source