Results 21 to 30 of about 1,250,119 (305)

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   +2 more sources

Mass-loss rates for transiting exoplanets [PDF]

Astronomy & Astrophysics, 2011
Exoplanets at small orbital distances from their host stars are submitted to intense levels of energetic radiations, X-rays and extreme ultraviolet (EUV). Depending on the masses and densities of the planets and on the atmospheric heating efficiencies, the stellar energetic inputs can lead to atmospheric mass loss.
Ehrenreich, David, Désert, Jean-Michel
openaire   +2 more sources

Mass Loss Rates of Three Comets [PDF]

Symposium - International Astronomical Union, 1992
Emission features of C2, C3, CN, and dust in Comets Thiele (1985m), Hartley-Good (1985l), and Giacobini-Zinner (1984e) have been analyzed and their mass loss rates of about 0.5, 1.1, and 0.8 Mg s−1 have been determined.
P.D. Singh, W.F. Huebner, D.C. Boice, I. Konno, E. Scalise   +4 more
openaire   +1 more source

High mass-loss asymptotic giant branch stars detected by the Midcourse Space Experiment in the 'intermediate' and 'outer' Galactic bulge [PDF]

, 2007
We present a study of Midcourse Space Experiment (MSX) point sources in the Galactic bulge (|l| < 3°, 1° < |b| < 5°), observed in the A, C, D and E bands (8–21μm), with a total area ∼48 deg2 and more than 7000 detected sources in the MSXD band ...
Ojha, D., K., Tej, A., Omont, A., K. Ojha A. Tej M. Schultheis A. Omont F. Schuller, D., Schultheis, M., Schuller, F., Ojha, D. K.   +6 more
core   +1 more source

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

, 2001
Infrared Space Observatory (ISO) observations have shown that O-rich Asymptotic Giant Branch (AGB) stars exhibit crystalline silicate features in their spectra only if their mass-loss rate is higher than a certain threshold value.
Tielens, A.G.G.M., Kemper, F, A. G. G. M. Tielens, Tielens, A. G G M, Waters, L.B.F.M., de Koter, A, De Koter, A., Waters, LBFM, Tielens, A. G. G. M., F. Kemper, Kemper, F., L. B. F. M. Waters, Waters, L. B F M, A. de Koter   +13 more
core   +1 more source

Mass loss rate determination of southern OB stars [PDF]

Astronomy & Astrophysics, 2001
A sample of OB stars (eleven Of, one O and one B supergiant) has been surveyed with the Australia Telescope Compact Array at 4.8 and 8.64 GHz with a resolution of 2'' -- 4''. Five stars were detected; three of them have negative spectral indices, consistent with non-thermal emission, and two have positive indices.
Benaglia, Paula, Cappa, Cristina Elisabet, Koribalski, B. S.   +2 more
openaire   +3 more sources

Rate of Mass Loss Across the Instability Threshold for Thwaites Glacier Determines Rate of Mass Loss for Entire Basin [PDF]

Geophysical Research Letters, 2018
AbstractRapid change now underway on Thwaites Glacier (TG) raises concern that a threshold for unstoppable grounding line retreat has been or is about to be crossed. We use a high‐resolution ice sheet model to examine the mechanics of TG self‐sustained retreat by nudging the grounding line just past the point of instability.
M. S. Waibel, C. L. Hulbe, C. S. Jackson, D. F. Martin   +3 more
openaire   +3 more sources

The Effects of Wetting-drying Cycles on Degradation of Sands and Gravels Used for Soil Mulching in Ningxia Province

Guan'gai paishui xuebao, 2022
【Objective】 Sand and gravel mulching is a technology widely used for crop production in the arid regions in northwestern China. Continuous weathering could result in their degradation; the purpose of this paper is to study the effects of wetting-drying ...
AN Wenju, LI Wangcheng, ZHAO Guangxin, JIA Zhenjiang, LIU Qiaoling, WANG Jie, MU Min, LI Yangyang   +7 more
doaj   +1 more source

Measuring Mass Loss Rates from Galactic Satellites [PDF]

International Astronomical Union Colloquium, 1999
Number count profiles of many Galactic and some extra-galactic satellite systems show evidence for associated stars beyond the cut-off in density that is identified as the point of tidal limitation (e.g. Irwin & Hatzidimitriou 1995, Grillmair et al. 1995).
Johnston, Kathryn V., Sigurdsson, Steinn, Hernquist, Lars   +2 more
openaire   +3 more sources

An in-situ method for assessing soil aggregate stability in burned landscapes

Zhongguo dizhi zaihai yu fangzhi xuebao, 2023
Due to soil repellency in burned areas, slope runoff and soil erodibility escalates following forest fires, increasing the vulnerability to post-fire debris flows.
Yonghao ZHOU, Xiewen HU, Tao JIN, Wenchao DUAN, Xueqiang GONG, Chuanjie XI, Xichao CAO   +6 more
doaj   +1 more source