Results 41 to 50 of about 7,335,139 (174)

Two type Ic supernovae in low-metallicity, dwarf galaxies: diversity of explosions

, 2010
Aims. The aim of this paper is to discuss the nature of two type Ic supernovae SN 2007bg and SN 2007bi and their host galaxies. Both supernovae were discovered in wide-field, non-targeted surveys and are found to be associated with sub-luminous blue ...
Snellen, I. A. G., Hunter, Ian, Mattila, Seppo,, D. R. Young (7602041), H. Navasardyan (7602080), S. Valenti (7194734), Valenti, S., D. Bersier, De Mooij, E.J.W., L. Zampieri, D. Bersier (7602056), C. R. Benn (7602053), N. R. Tanvir (7601726), Smartt, Stephen; id_orcid, Snellen, I.A.G., R. L. M. Corradi (7602062), S. Mattila, Mattila, Seppo, S. Mattila (7602074), Pastorello, A., Benn, C.R., E. J. W. de Mooij, Pastorello, Andrea, Hunter, I., Benetti, S., L. Zampieri (7602086), Smartt, S. J., Zampieri, L., M. Hrudkova, Tanvir, N. R., A. Pastorello (7602047), S. Valenti, A. H. Harutyunyan, de Mooij, E. J. W., Young, David; id_orcid, R. L. M. Corradi, I. A. G. Snellen, Corradi, R.L.M., Harutyunyan, A.H., M. T. Botticella, H. Navasardyan, Tanvir, N.R., Navasardyan, H., Benn, C. R., C. R. Benn, Young, D. R., S. Benetti, I. Hunter, A. H. Harutyunyan (7602065), Corradi, R. L. M., D. R. Young, I. A. G. Snellen (7602083), Bersier, D., I. Hunter (7602071), S. J. Smartt (7602044), M. Hrudkova (7602068), Hrudkova, M., Botticella, M. T., A. Pastorello, de Mooij EJW (7602077), N. R. Tanvir, Valenti, Stefano, S. J. Smartt, Harutyunyan, A. H., Botticella, Maria, S. Benetti (7602050), M. T. Botticella (7602059)   +66 more
core   +1 more source

Photometric and Spectroscopic Studies of Type Ic Supernovae SN 2020akf and SN 2021mxx

The Astrophysical Journal
We present a comprehensive analysis of optical photometry and medium-resolution spectroscopy for Type Ic supernovae (SNe) SN 2020akf and SN 2021mxx.
Mulchand Kurre, K. R. Sahu, Shrutika Tiwari, Yogita Patel, N. K. Chakradhari, D. K. Sahu, Rishabh Singh Teja, G. C. Anupama, Mridweeka Singh, Anirban Dutta, Anjasha Gangopadhyay   +10 more
doaj   +1 more source

Mechanisms underlying the loss of migratory behaviour in a long‐lived bird

Journal of Animal Ecology, Volume 94, Issue 5, Page 1061-1075, May 2025.
White stork populations in Iberia are undergoing a profound change in their migratory patterns, becoming mostly resident. By combining census data, GPS‐tracking and genomic analyses, Andrade et al. link this behavioural change to inter‐generational shifts in the frequency of migratory and non‐migratory young individuals (likely associated with ...
Pedro Andrade, Aldina M. A. Franco, Marta Acácio, Sandra Afonso, Cristiana I. Marques, Francisco Moreira, Miguel Carneiro, Inês Catry   +7 more
wiley   +1 more source

Long γ‐Ray Bursts and Type Ic Core‐Collapse Supernovae Have Similar Locations in Hosts

, 2019
When the afterglow fades at the site of a long-duration gamma-ray burst (LGRB), Type Ic supernovae (SNe Ic) are the only type of core-collapse supernova observed.
Kelly, Patrick L., Pahre, Michael, Kirshner, Robert P.   +2 more
core   +1 more source

Pulsed‐Laser‐Driven CO2 Reduction Reaction for the Control of the Photoluminescence Quantum Yield of Organometallic Gold Nanocomposites

Small Science, Volume 4, Issue 7, July 2024.
Pulsed‐laser‐driven CO2 reduction reaction allows the synthesis of carbon‐monoxide‐rich gold nanoparticles and organometallic nanocomposites composed by gold nanoclusters and carboxylic salts, characterized by a photoluminescent quantum yield of 20% in the visible (blue) region.
Tahir, Guilherme C. Concas, Mariana Gisbert, Marco Cremona, Fernando Lazaro, Marcelo Eduardo H. Maia da Costa, Suellen D. T. De Barros, Ricardo Q. Aucélio, Tatiana Saint Pierre, José Marcus Godoy, Diogo Mendes, Gino Mariotto, Nicola Daldosso, Francesco Enrichi, Alexandre Cuin, Aldebarã F. Ferreira, Walter M. de Azevedo, Geronimo Perez, Celso SantAnna, Braulio Soares Archanjo, Yordy E. Licea Fonseca, Andre L. Rossi, Francis L. Deepak, Rajwali Khan, Quaid Zaman, Sven Reichenberger, Theo Fromme, Giancarlo Margheri, José R. Sabino, Gabriella Fibbi, Mario Del Rosso, Anastasia Chillà, Francesca Margheri, Anna Laurenzana, Tommaso Del Rosso   +34 more
wiley   +1 more source

Revealing the binary origin of Type Ic superluminous supernovae through nebular hydrogen emission

, 2015
We propose that nebular Hα emission, as detected in the Type Ic superluminous supernova iPTF13ehe, stems from matter that is stripped from a companion star when the supernova ejecta collide with it.
Takashi J. Moriya, Zheng-Wei Liu, Ting-Wan Chen, Jonathan Mackey, Norbert Langer   +4 more
core   +1 more source

Exploitation of Mechanistic Product Selectivity for the Two‐Step Synthesis of Optically Active Bio‐Derived Cyclic Carbonates Incorporating Amino Acids

European Journal of Organic Chemistry, Volume 27, Issue 21, June 3, 2024.
Synthesis of cyclic carbonates bearing amino acid functionality is described. The use of enantiopure amino acids and glycidol, in the initial formation of the substrate, combined with the stereo‐retentive mechanism of the cycloaddition with CO2 furnishes bio‐derived cyclic carbonates which display a range of optical activities.
Diego Jaraba Cabrera, Lucía Álvarez‐Miguel, Adrián Hernando Rodríguez, Alex Hamilton, Marta E. G. Mosquera, Christopher J. Whiteoak   +5 more
wiley   +1 more source

IC² Institute Update, Fall 2012 [PDF]

, 2012
Fall, 2012, issue of the IC² Institute newsletter. Topics in this issue include: IC² Innovation Readiness Series; the UT Austin|Portugal program and UTEN; IC² partnership with Ruta N in Colombia; the Austin Technology Incubator's graduating class of
IC² Institute, The University of Texas at Austin
core   +1 more source

Optical Spectra of Thermonuclear Supernovae in the Local and Distant Universe [PDF]

, 2005
This thesis is devoted to the study of optical spectra of thermonuclear supernovae, known as ``Type Ia'' supernovae (SN Ia). These violent stellar explosions, visible across a large fraction of the observable universe, are used to measure distances on ...
Blondin, Stephane
core   +1 more source

N,N’‐Diaryl‐Sulfurdiimides are Strongly Redox Tuned

Chemistry – A European Journal, Volume 30, Issue 26, May 8, 2024.
A series of 4‐ and 2,4,6‐substituted diaryl sulfur diimides induce a large dependence on redox properties, such as the one‐electron reduction CV waves shown here, that correlate linearly with the redox MO energies. One‐electron transfers are confirmed using in situ EPR spectroscopy, identifying radical anions that have longer lifetimes the more ...
Nathan D. D. Hill, René T. Boeré
wiley   +1 more source