Results 71 to 80 of about 62,809 (202)

Mathematically Processed UV Spectroscopic Method for Quantification of Chlorthalidone and Azelnidipine in Bulk and Formulation: Evaluation of Greenness and Whiteness

Journal of Spectroscopy, 2022
A simple, eco-friendly four analytical methods were established by improving the selectivity through the application of mathematical processing of UV absorption spectra for concurrent quantification of chlorthalidone (CTL) and azelnidipine (AZE).
Mahesh Attimarad, Muhammad Shahzad Chohan, Venugopala Katharigatta Narayanaswamy, Anroop Balachandran Nair, N. Sreeharsha, Sheeba Shafi, Marysheela David, Abdulmalek Ahmed Balgoname, Abdulrahman Ibrahim Altaysan, Efren II Plaza Molina, Pran Kishore Deb   +10 more
doaj   +1 more source

Confirmation of simultaneous p and g mode excitation in HD 8801 and Gamma Peg from time-resolved multicolour photometry of six candidate "hybrid" pulsators

, 2009
We carried out a multi-colour time-series photometric study of six stars claimed as "hybrid" p and g mode pulsators in the literature. Gamma Peg was confirmed to show short-period oscillations of the Beta Cep type and simultaneous long-period pulsations ...
Abt, Asplund, Balona, Balona, Blaauw, Breger, Campos, Chapellier, Chapellier, Chapellier, Chapellier, Chevalier, Christensen-Dalsgaard, Cugier, De Cat, Dupret, Dziembowski, Dziembowski, Flower, G. Handler, Garrido, Gonzalez Bedolla, Grevesse, Guzik, Handler, Handler, Handler, Handler, Handler, Henry, Hill, Jerzykiewicz, Jerzykiewicz, Jerzykiewicz, Jerzykiewicz, King, Kurtz, Kurtz, Künzli, Le Contel, Lenz, Lenz, Loumos, Lutz, Lyubimkov, Mathias, Matthews, McMillan, Mermilliod, Miglio, Montgomery, Moon, Morel, Morossi, Napiwotzki, Niemczura, Niemczura, Oreiro, Pamyatnykh, Rodríguez, Rogers, Rowe, Saio, Sareyan, Schuh, Seaton, Stamford, Stankov, Sterken, Telting, van Leeuwen, Walborn, Walker, Watson, Zdravkov   +74 more
core   +1 more source

Photometric and Spectroscopic Investigations of Three Large Amplitude Contact Binaries

The Astronomical Journal
Abstract We performed photometric and spectroscopic studies of three large amplitude contact binaries: NSVS 2418361, ATLAS J057.1170+31.2384, and NSVS 7377875. The amplitudes of these three systems’ light curves are more than 0.7 mag. We analyzed the light curves using the Wilson–Devinney code to yield physical parameters.
Xin Xu, Kai Li, Fei Liu, Qian-Xue Yan, Yi-Fan Wang, Xin-Yu Cui, Jing-Yi Wang, Xing Gao, Guo-You Sun, Cheng-Yu Wu, Mu-Zi-Mei Li   +10 more
openaire   +3 more sources

Effect of stellar activity on the high precision transit light curve

EPJ Web of Conferences, 2015
Stellar activity features such as spots and plages can create difficulties in determining planetary parameters through spectroscopic and photometric observations.
Oshagh, M., Santos, N. C., Boisse, I., Boué, G., Ehrenreich, D., Haghighipour, N., Figueira, P., Santerne, A., Dumusque, X.   +8 more
doaj   +1 more source

7Li(18O, 17N)8Be reaction and the 17N + 8Be-potential [PDF]

Ядерна фізика та енергетика, 2010
Angular distributions of the 7Li(18O, 17N)8Be reaction were measured for the transitions to the ground states of 8Be and 17N and excited states of 17N at the energy Elab(18O) = 114 MeV. The data were analyzed with coupled-reaction-channels method for one-
A. T. Rudchik, Yu. M. Stepanenko, A. A. Rudchik, O. A. Ponkratenko, E. I. Koshchy, S. Kliczewski, K. Rusek, A. Budzanowski, S. Yu. Mezhevych, Val. M. Pirnak, I. Skwirczyńska, R. Siudak, B. Czech, A. Szczurek, J. Choiński, L. Głowacka   +15 more
doaj  

Multi-wavelength photometric variation of PG1605+072

, 2008
In a large coordinated attempt to further our understanding of the $p$-mode pulsating sdB star PG1605+072, the Multi-Site Spectroscopic Telescope (MSST) collaboration has obtained simultaneous time-resolved spectroscopic and photometric observations. The
collaborations, MSST, Cordes, O., Dreizler, S., Heber, U., Jeffery, C. S., Lutz, R., O'Toole, S. J., Schuh, S., Stahn, T., Tillich, A., WET, the   +10 more
core  

Energy dependence of the 13C + 16O scattering and quasi-molecular absorptian potential [PDF]

Ядерна фізика та енергетика, 2010
Experimental data of the 13С + 16O elastic scattering at the energies Еc.m.. = 6.28 - 59.17 MeV were analyzed within the optical model and coupled-reaction-channels method. The energy dependence for the 13С + 16O potential of the Woods - Saxon type with
A. T. Rudchik, Yu. O. Shyrma, V. A. Plujko, O. A. Ponkratenko, I. V. Simenog   +4 more
doaj  

Astronomical Cardiology: A Search For Heartbeat Stars Using $\textit{Gaia}$ and $\textit{TESS}$

The Open Journal of Astrophysics
Heartbeat stars are a subclass of binary stars with short periods, high eccentricities, and phase-folded light curves that resemble an electrocardiogram.
Jowen Callahan, D. M. Rowan, C. S. Kochanek, K. Z. Stanek   +3 more
doaj   +1 more source

Cooper pair transfer in nuclei

, 2013
The second order DWBA implementation of two-particle transfer direct reactions which includes simultaneous and successive transfer, properly corrected by non-orthogonality effects is tested with the help of controlled nuclear structure and reaction ...
Barranco, F., Broglia, R. A., Idini, A., Potel, G., Vigezzi, E.   +4 more
core   +1 more source

Modeling of Two Low-amplitude Radially Pulsating δ Scuti Stars: KIC 12602250 and KIC 5768203

The Astrophysical Journal
In this research, we conducted systematic photometric, spectroscopic, and theoretical modeling analyses of two δ Scuti stars—KIC 12602250 and KIC 5768203—that pulsate only in radial modes.
Shuguo Ma, A-Li Luo, Peng Wei, Chenglong Lv, Ming Yang, Fang Zuo, Yingzhen Cui, Shuo Li, Gang Meng, Wen Hou, Yuji He, Yinbi Li, Zhongyang Liu, Xiao-Xiao Ma, Jun-Chao Liang, Fei Dang, Daoye Yang, Ali Esamdin, Hao Zeng, Cai-Xia Qu   +19 more
doaj   +1 more source