Results 81 to 90 of about 6,433 (179)

Brecciation at the grain scale within the lithologies of the Winchcombe Mighei‐like carbonaceous chondrite

Meteoritics &Planetary Science, Volume 59, Issue 5, Page 1068-1100, May 2024.
Abstract The Mighei‐like carbonaceous (CM) chondrites have been altered to various extents by water–rock reactions on their parent asteroid(s). This aqueous processing has destroyed much of the primary mineralogy of these meteorites, and the degree of alteration is highly heterogeneous at both the macroscale and nanoscale.
Luke Daly, Martin D. Suttle, Martin R. Lee, John Bridges, Leon Hicks, Pierre‐Etienne M. C. Martin, Cameron J. Floyd, Laura E. Jenkins, Tobias Salge, Ashley J. King, Natasha V. Almeida, Diane Johnson, Patrick W. Trimby, Haithem Mansour, Fabian B. Wadsworth, Gavyn Rollinson, Matthew J. Genge, James Darling, Paul A. J. Bagot, Lee F. White, Natasha R. Stephen, Jennifer T. Mitchell, Sammy Griffin, Francesca M. Willcocks, Rhian Jones, Sandra Piazolo, Joshua F. Einsle, Alice Macente, Lydia J. Hallis, Aine O'Brien, Paul F. Schofield, Sara S. Russell, Helena Bates, Caroline Smith, Ian Franchi, Lucy V. Forman, Phil A. Bland, David Westmoreland, Iain Anderson, Richard Taylor, Mark Montgomery, Mark Parsons, Jérémie Vasseur, Matthias van Ginneken, Penelope J. Wozniakiewicz, Mark J. Burchell, Daniel Hallatt, Luke S. Alesbrook, Vassilia Spathis, Richard Worden, Julie Behnsen, Kate Black, the UK Fireball Alliance   +52 more
wiley   +1 more source

Organised loneliness and its discontents

Diversity &Inclusion Research, Volume 1, Issue 1, April 2024.
Abstract This review paper offers a critique of the discourse of loneliness both in the popular and academic imagination. It questions the stance and approach of much loneliness research and the headlines that have been extracted from it. These position loneliness as an epidemic, framing it as a global public health problem, its aetiology and ...
Olivia Sagan
wiley   +1 more source

Quantitative Investigations on Mass Outflow from Planetary Nebulae Nuclei [PDF]

Symposium - International Astronomical Union, 1989
Observed P-Cygni line profiles in the UV spectra of central stars of Planetary Nebulae (PNN) obtained with the IUE satellite has been fitted by theoretical profiles in order to determine mass loss rates.
S. Cerrato, L. Bianchi, M. Grewing, M. Bässgen, G. Bässgen   +4 more
openaire   +1 more source

New Close Binary Central Stars of Planetary Nebulae from Gaia DR3 Epoch Photometry. [PDF]

Res Notes AAS, 2022
Chornay N, Walton NA.
europepmc   +1 more source

The evolution of planetary nebulae. VIII. True expansion rates and visibility times

, 2013
The visibility time of planetary nebulae (PNe) in stellar systems is an essential quantity for estimating the size of a PN population in the context of general population studies. For instance, it enters directly into the PN death rate determination. The
Jacob, R., Schoenberner, D., Steffen, M.
core   +1 more source

Photo-ionization modelling of planetary nebulae -- II. Galactic bulge nebulae, a comparison with literature results

, 1999
We have constructed photo-ionization models of five galactic bulge planetary nebulae using our automatic method which enables a fully self-consistent determination of the physical parameters of a planetary nebula.
Van de Steene, G. C., van Hoof, P. A. M.
core   +2 more sources

Overview of the LAMOST survey in the first decade. [PDF]

Innovation (Camb), 2022
Yan H, Li H, Wang S, Zong W, Yuan H, Xiang M, Huang Y, Xie J, Dong S, Yuan H, Bi S, Chu Y, Cui X, Deng L, Fu J, Han Z, Hou J, Li G, Liu C, Liu J, Liu X, Luo A, Shi J, Wu X, Zhang H, Zhao G, Zhao Y.   +26 more
europepmc   +1 more source

Hydrostatic evolutionary sequences for the nuclei of planetary nebulae

The Astrophysical Journal, 1986
Etude des proprietes des noyaux en fonction des trois parametres suivants: la masse du noyau, choisie egale a 0,60-0,70-0,76-0,89 MO; la phase de separation d'avec la branche asymptotique des geantes, choisie en quatre points egalement separes a l'interieur du cycle des flashes de l'helium; et la perte de masse qui prend toute une serie de ...
P. R. Wood, D. J. Faulkner
openaire   +1 more source

Nucleation experiments on a titanium-carbon system imply nonclassical formation of presolar grains. [PDF]

Sci Adv, 2023
Kimura Y, Tanaka KK, Inatomi Y, Aktas C, Blum J.   +4 more
europepmc   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Contents

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 2-29, August 2025.
wiley   +1 more source