Results 51 to 60 of about 7,219,823 (215)

Investigating the Observational Properties of Type Ib Supernova SN 2017iro

The Astrophysical Journal, 2022
Abstract We report results of optical imaging and low-resolution spectroscopic monitoring of supernova (SN) 2017iro that occurred in the nearby (∼31 Mpc) galaxy NGC 5480. The He i λ5876 feature present in the earliest spectrum (−7 days) classified it as a Type Ib SN.
Brajesh Kumar, Avinash Singh, D. K. Sahu, G. C. Anupama   +3 more
openaire   +2 more sources

Dinuclear Gallium(III) Complex With 1,3‐Propanediamine‐N,N′‐Diacetate: Structural Characterization, Antimicrobial Activity, and DNA/BSA Interactions

Bioinorganic Chemistry and Applications, Volume 2025, Issue 1, 2025.
In this study, a tetradentate 1,3‐propanediamine‐N,N′-diacetate (1,3‐pdda2−) was utilized for the synthesis of a dinuclear gallium(III) complex, uns‐cis‐[Ga(1,3‐pdda)(µ‐OH)]2.2H2O (1). Complex 1 was characterized using IR and NMR (1H and 13C) spectroscopy, and its crystal structure was determined by single‐crystal X‐ray diffraction analysis.
Bojana V. Pantović, Darko P. Ašanin, Žiko Milanović, Franc Perdih, Tatjana Ilic-Tomic, Dušanka D. Radanović, Iztok Turel, Miloš I. Djuran, Biljana Đ. Glišić, Elena R. Milaeva   +9 more
wiley   +1 more source

Experimental and Theoretical Insights into the Optical Properties and Intermolecular Interactions in Push‐Pull Bromide Salts

ChemistryOpen, Volume 8, Issue 4, Page 483-496, April 2019., 2019
Inside the salt: Experimental and theoretical insights into the nature of optical, charge transfer and intermolecular interactions in 1‐allyl‐4‐(1‐cyano‐2‐(4‐(dimethylamino)phenyl)vinyl)pyridin‐1‐ium bromide salts (I and II) are compared with their precursors (Ia–IIa).
Perumal Venkatesan, Margarita Cerón, Enrique Pérez‐Gutiérrez, Armando E. Castillo, Subbiah Thamotharan, Fernando Robles, Maxime A. Siegler, M. Judith Percino   +7 more
wiley   +1 more source

Characterizing the Rapid Hydrogen Disappearance in SN 2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties

The Astrophysical Journal
We present optical and near-infrared (NIR) observations of SN 2022crv, a stripped-envelope supernova in NGC 3054, discovered within 12 hr of explosion by the Distance Less Than 40 Mpc Survey.
Yize Dong, Stefano Valenti, Chris Ashall, Marc Williamson, David J. Sand, Schuyler D. Van Dyk, Alexei V. Filippenko, Saurabh W. Jha, Michael Lundquist, Maryam Modjaz, Jennifer E. Andrews, Jacob E. Jencson, Griffin Hosseinzadeh, Jeniveve Pearson, Lindsey A. Kwok, Teresa Boland, Eric Y. Hsiao, Nathan Smith, Nancy Elias-Rosa, Shubham Srivastav, Stephen Smartt, Michael Fulton, WeiKang Zheng, Thomas G. Brink, Melissa Shahbandeh, K. Azalee Bostroem, Emily Hoang, Daryl Janzen, Darshana Mehta, Nicolas Meza, Manisha Shrestha, Samuel Wyatt, Katie Auchettl, Christopher R. Burns, Joseph Farah, Lluís Galbany, Estefania Padilla Gonzalez, Joshua Haislip, Jason T. Hinkle, D. Andrew Howell, Thomas De Jaeger, Vladimir Kouprianov, Sahana Kumar, Jing Lu, Curtis McCully, Shane Moran, Nidia Morrell, Megan Newsome, Craig Pellegrino, Abigail Polin, Daniel E. Reichart, B. J. Shappee, Maximilian D. Stritzinger, Giacomo Terreran, M. A. Tucker   +54 more
doaj   +1 more source

Optical observations of the fast declining Type Ib supernova iPTF13bvn [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
Accepted for publication in MNRAS, 11 pages, 12 ...
Srivastav, Shubham, Anupama, G. C., Sahu, D. K.   +2 more
openaire   +2 more sources

Circumstellar Emission from Type Ib and Ic Supernovae

, 2006
The presumed Wolf-Rayet star progenitors of Type Ib/c supernovae have fast, low-density winds, and the shock waves generated by the supernova interaction with the wind are not expected to be radiative at typical times of observation.
Chevalier, Roger, Fransson, Claes,
core   +1 more source

Regularity for Micropolar Fluid Equations Subjected to Hall Current

Journal of Applied Mathematics, Volume 2025, Issue 1, 2025.
In this paper, we consider the density‐dependent incompressible Hall‐magnetomicropolar fluid equations and establish a regularity condition involving the Lt1Lx∞ norm of the velocity gradient and the microrotational velocity gradient and the Lt2r/r−3Lxr norm of the magnetic field gradient for r > 3.
Mingyu Zhang, Arpan Hazra
wiley   +1 more source

Infrared Ejecta and Cold Dust in the Young Supernova Remnant N132D

The Astrophysical Journal, 2023
We present Spitzer, Wide-field Infrared Survey Explorer (WISE), and Herschel observations of the young supernova remnant (SNR) N132D in the Large Magellanic Cloud, including 3–40 μ m Spitzer Infrared Spectrograph (IRS) mapping, 12 μ m WISE and 70, 100 ...
Jeonghee Rho, Aravind P. Ravi, Jonathan D. Slavin, Heechan Cha   +3 more
doaj   +1 more source

Type Ib and IIb Supernova Progenitors in Interacting Binary Systems [PDF]

The Astrophysical Journal, 2017
Abstract We explore properties of Type Ib and IIb SN progenitors that are produced by stable mass transfer in binary systems using a new grid of stellar evolution models from an initial primary mass in the range of at solar and Large Magellanic Cloud metallicities. We find
Sung-Chul Yoon, Luc Dessart, Alejandro Clocchiatti   +2 more
openaire   +4 more sources

Integral field spectroscopy of supernova explosion sites: constraining mass and metallicity of the progenitors - I. Type Ib and Ic supernovae

, 2013
16 pages, 14 figures, accepted to the Astronomical JournalIntegral field spectroscopy of 11 type-Ib/c supernova explosion sites in nearby galaxies has been obtained using UH88/SNIFS and Gemini-N/GMOS.
Usuda, Tomonori, Maeda, Keiichi, Pereira, R., Aldering, Greg, Doi, Mamoru, Kuncarayakti, Hanindyo, Hashiba, Yasuhito, Arimoto, Nobuo, Morokuma, Tomoki   +8 more
core   +1 more source