Results 31 to 40 of about 3,198,190 (296)

Predicting the mass loss rates of Mdwarfs

, 2021
Prominences, cool condensations of coronal plasma, have been observed on many types of star. Rapidly rotating stars are known to show “slingshot prominences”, that form multiple stellar radii above the surface. Models of these features typically focus on solar type stars, especially the prototype AB Doradus.
Waugh, Rose, Jardine, Moira
openaire   +1 more source

Mass loss rates of Li‐rich AGB/RGB stars [PDF]

Astronomische Nachrichten, 2018
A sample of AGB/RGB stars with an excess of Li abundances is considered in order to estimate their mass loss rates. Our method is based on a correlation between the Li abundances and the stellar luminosity, using a modified version of Reimers formula. We have adopted a calibration on the basis of an empirical correlation between the mass loss rate and ...
Maciel, W. J., Costa, R. D. D.
openaire   +2 more sources

Supernovae: Little Bear's mass loss rate [PDF]

Nature, 1985
H6 influx of shallow-water carbonate debris, a rapid reduction in the amount of pelagic carbonate and a period of slow or con- densed sedimentation; it is followed by the onset of accumulation of carbonate- poor bioturbated clay containing organic- rich layers (black shales).
openaire   +3 more sources

TGA-FT-IR Analysis of Evolution of Oxygenated Organics by Isothermal Low-Temperature Decomposition of Rice Straw Hydrolysis Residue [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2023
The study presents a TGA-FT-IR analysis of low-temperature thermochemical transformations of Rice straw hydrolysis residue (RSHR). Isothermal decomposition of RSHR was carried out for 3 h, at decomposition temperatures of 200, 250, 300, and 350 oC.
Himadri Ghatak
doaj   +1 more source

Mass-losing accretion discs around supermassive black holes [PDF]

, 2008
We study the effects of outflow/wind on the gravitational stability of accretion discs around supermassive black holes using a set of analytical steady-state solutions.
A. Merloni, A. Toomre, C. Combet, C. Knigge, D. Proga, E. Quataert, F. Khajenabi, F. Khajenabi, G. Pelletier, I. Shlosman, J. Fukue, J. Goodman, J. Goodman, J.C. Tan, K.-Y. Watarai, K.M. Leighly, K.M. Leighly, N. Murray, N.I. Shakura, R. Ganguly, R. Misra, R. Turolla, R.D. Blandford, R.E. Taam, R.P. Fender, S. Nayakshin, T. Beckert, V. Das, V. Das, Y. Levin   +29 more
core   +1 more source

Mass-Loss Rates of Very Massive Stars [PDF]

, 2014
36 pages, 15 figures, Book Chapter in "Very Massive Stars in the Local Universe", Springer, Ed.
openaire   +2 more sources

Crystallinity versus mass-loss rate in asymptotic giant branch stars [PDF]

Astronomy & Astrophysics, 2001
accepted by A&A, 10 pages, 11 ...
Kemper, F., Waters, L.B.F.M., de Koter, A., Tielens, A.G.G.M.   +3 more
openaire   +6 more sources

On the reliability of mass-loss-rate estimates for AGB stars

, 2008
In the recent literature there has been some doubt as to the reliability of CO multi-transitional line observations as a mass-loss-rate estimator for AGB stars.
A. A. Lundgren, Bains, Balega, Battinelli, Bergeat, Bloecker, Bowen, Cherchneff, Cohen, Dehaes, Dorschner, Epchtein, F. L. Schöier, Feast, Fong, Forestini, González Delgado, Groenewegen, Groenewegen, Groenewegen, Groenewegen, H. Olofsson, Habing, Habing, Heras, Heske, Hogerheijde, Höfner, Höfner, Ivezic, Jones, Justtanont, Justtanont, Justtanont, Kahane, Kahane, Kastner, Kemper, Kerschbaum, Knapp, Knapp, Lambert, Le Bertre, Le Bertre, Lepine, Leão, Maercker, Mamon, Marengo, Marigo, Marshall, Mauron, Mauron, Mauron, Mauron, Monnier, Morris, Neri, Olivier, Olofsson, Olofsson, Olofsson, Ramstedt, S. Ramstedt, Sahai, Sandin, Schröder, Schöier, Schöier, Schöier, Schöier, Sedlmayr, Simis, Skinner, Sopka, Speck, Stanek, Steffen, Suh, Teyssier, Volk, Walmsley, Whitelock, Willson, Winters, Woitke, Woods, Zuckerman   +87 more
core   +1 more source

Rate equation and scaling for fragmentation with mass loss

Physical Review A, 1990
A linear rate equation describes fragmentation with continuous and discrete mass loss typified by consumption of porous reactive solids and two-phase heterogeneous solids. For a mass-dependent fragmentation rate ${\mathit{x}}^{\mathrm{\ensuremath{\alpha}}}$ and a continuous-mass-loss rate \ensuremath{\epsilon}${\mathit{x}}^{\ensuremath{\gamma ...
Edwards, Boyd F., Cai, M., Han, H.
openaire   +5 more sources

Experimental study on the influence of different laying methods on the thermomechanical properties of carbon fiber/epoxy hybrid composite

Materials Research Express, 2020
The thermomechanical tests were carried out on the composite materials under different laying methods (thickness and angle) based on cone calorimetry, high temperature oxygen index method, vertical/horizontal combustion method and high temperature ...
Lei Zhang, Haiyan Wang, Junpen Zhang, Yao Tian, Jinglei Li, Xiao Chen   +5 more
doaj   +1 more source