Results 41 to 50 of about 1,846,404 (321)

Testing the predicted mass-loss bi-stability jump at radio wavelengths [PDF]

, 2007
In this study, we test the theoretically predicted mass-loss behaviour as a function of stellar effective temperature across the so-called `bi-stability' jump (BSJ). We gathered radio observations of 30 OB supergiants (O8-B3).
Abbott, B. Koribalski, Bagnulo, Benaglia, Bieging, Blomme, Bohannan, Castor, Chiosi, Crowther, Crowther, Curé, Eldridge, Evans, Eversberg, Feinstein, Fullerton, Garrison, Golson, Heger, Herrero, Hillier, Hiltner, Howarth, Humpreys, Hunter, J. Martí, J. Maíz Apellániz, J. S. Vink, Kotak, Kozok, Lamers, Lamers, Lamers, Lanz, Leitherer, Lesh, Limongi, Lucy, Maeder, Markova, Martins, Massey, Maíz Apellániz, Maíz-Apellániz, Moffett, Morel, Morgan, P. A. Crowther, P. Benaglia, Panagia, Pauldrach, Pelupessy, Perryman, Prinja, Prinja, Puls, Rauw, Repolust, Scuderi, Setia Gunawan, Smith, Thaller, Trundle, Trundle, Vink, Vink, Vink, Vink, Vink, Walborn, Walborn, Walborn, Walborn, Walborn, Walborn, Williams, Wright   +77 more
core   +3 more sources

Sunlight-driven nitrate loss records Antarctic surface mass balance

Nature Communications, 2022
Snow accumulation rates in Antarctica can now be reconstructed from nitrate isotopes in snow and ice. This independent technique offers scientists a new tool for studying how Antarctic climate changed in the past and how it may change in the future.
Pete D. Akers, Joël Savarino, Nicolas Caillon, Aymeric P. M. Servettaz, Emmanuel Le Meur, Olivier Magand, Jean Martins, Cécile Agosta, Peter Crockford, Kanon Kobayashi, Shohei Hattori, Mark Curran, Tas van Ommen, Lenneke Jong, Jason L. Roberts   +14 more
doaj   +1 more source

Mass-loss rates for transiting exoplanets

, 2011
Exoplanets at small orbital distances from their host stars are submitted to intense levels of energetic radiations, X-rays and extreme ultraviolet (EUV).
Anderson, Anderson, Asplund, Bakos, Bakos, Bakos, Bakos, Bakos, Bakos, Baraffe, Baraffe, Baraffe, Barge, Barros, Batalha, Bonomo, Bordé, Borucki, Bouchy, Bouchy, Bouchy, Bouchy, Brown, Buchhave, Burke, Butler, Cabrera, Cecchi-Pestellini, Charbonneau, Christian, Christiansen, Collier Cameron, Collier-Cameron, D. Ehrenreich, Davis, Deeg, Deleuil, Dunham, Ehrenreich, Ehrenreich, Enoch, Fossati, Fridlund, Gandolfi, García-Muñoz, Gillon, Gillon, Hartman, Hartman, Hartman, Hebb, Hebb, Hellier, Hellier, Hellier, Holman, Holmström, Hébrard, J.-M. Désert, Jackson, Jaritz, Jenkins, Johns-Krull, Joshi, Kashyap, Kipping, Koch, Kovács, Lammer, Lammer, Latham, Latham, Laughlin, Lecavelier des Etangs, Lecavelier des Etangs, Lecavelier des Etangs, Li, Lin, Linsky, Lister, Léger, Maxted, McCullough, Moutou, Moutou, Noyes, Pillitteri, Pont, Poppenhaeger, Pál, Pál, Queloz, Queloz, Queloz, Rauer, Reiners, Sanz-Forcada, Sato, Saumon, Schporer, Simpson, Skillen, Smalley, Snellen, Sozzetti, Stone, Street, Tian, Torres, Torres, Torres, Torres, Valencia, Vidal-Madjar, Vidal-Madjar, Vidal-Madjar, Watson, West, Wilson, Winn, Winn, Wood, Yelle, Yelle   +123 more
core   +1 more source

Mass Loss From Planetary Nebulae in Elliptical Galaxies [PDF]

, 2009
Early-type galaxies possess a dilute hot (2-10E6 K) gas that is probably the thermalized ejecta of the mass loss from evolving stars. We investigate the processes by which the mass loss from orbiting stars interacts with the stationary hot gas for the ...
Athey, Bedijn, Boffi, Bregman, Brighenti, Diehl, Humphrey, Ji, Joel N. Bregman, Joel R. Parriott, Parriott, Parriott, Zoccali   +12 more
core   +1 more source

ON MASS LOSS FROM EVOLVED MASSIVE STARS

Odessa Astronomical Publications, 2017
We consider stationary out flowing stellar envelopes accelerated by a radiation flux pressure. A method is developed describing a spherically symmetric flow in radiational hydrodynamics in regions with arbitrary optical depth (τ ).
A. V. Dorodnitsyn, G. S. Bisnovatyi-Kogan   +1 more
doaj   +1 more source

Acute fat loss does not affect bone mass

Scientific Reports, 2021
Obesity has previously been thought to protect bone since high body weight and body mass index are associated with high bone mass. However, some more recent studies suggest that increased adiposity negatively impacts bone mass.
Marie K. Lagerquist, Karin L. Gustafsson, Petra Henning, Helen Farman, Jianyao Wu, Klara Sjögren, Antti Koskela, Juha Tuukkanen, Claes Ohlsson, Ingrid Wernstedt Asterholm, Louise Grahnemo   +10 more
doaj   +1 more source

Magnetic Field, Dust, and Axisymmetrical Mass Loss on the AGB [PDF]

, 1998
I propose a mechanism for axisymmetrical mass loss on the asymptotic giant branch, that may account for the axially symmetric structure of elliptical planetary nebulae.
Soker, Noam
core   +2 more sources

Mass-loss rates of Very Massive Stars

, 2014
We discuss the basic physics of hot-star winds and we provide mass-loss rates for (very) massive stars. Whilst the emphasis is on theoretical concepts and line-force modelling, we also discuss the current state of observations and empirical modelling ...
A. D. Code, A. E. Wright, A. I. MacFadyen, A. J. Marle van, A. W. A. Pauldrach, A. W. A. Pauldrach, A. W. Fullerton, A.W.A. Pauldrach, B. Davies, B. Davies, B. Surlan, C. A. Iglesias, C. Leitherer, C. Trundle, C. V. Rodrigues, D. C. Abbott, D. C. Abbott, D. H. Cohen, D. J. Hillier, D. J. Hillier, D. Schaerer, E. A. Milne, E. Anders, F. Martins, G. Gräfener, G. Gräfener, G. Gräfener, G. Meynet, G. Meynet, H. Belkus, I. Baraffe, I. Brott, J. Castor, J. H. Groh, J. H. Groh, J. J. Eldridge, J. Krticka, J. O. Sundqvist, J. Puls, J. Puls, J. Puls, J. Puls, J. Puls, J. S. Vink, J. S. Vink, J. S. Vink, J. S. Vink, J.-P. Zahn, K. G. Gayley, K. G. Gayley, L. B. Lucy, L. B. Lucy, L. B. Lucy, L. M. Oskinova, L. Muijres, L. Muijres, L. Muijres, L. R. Yungelson, M. Cantiello, M. Limongi, M. R. Mokiem, N. J. Shaviv, N. Langer, N. Panagia, N. Smith, N. Smith, N. Smith, N. Yusof, P. E. Müller, P. E. Müller, P. S. Conti, Q.-K. Li, R. H. D. Townsend, R. Kotak, R. M. Humphreys, R.-P. Kudritzki, S. P. Owocki, S. P. Owocki, S. P. Owocki, S.-C. Bouret, T. J. Harries, T. Repolust, U. Springmann, W. Glatzel, W.-R. Hamann, W.-R. Hamann   +85 more
core   +1 more source

Cerebrospinal Fluid Liquid Biopsy Enables Targeted Therapy Without Tissue Diagnosis in Pediatric Low‐Grade Gliomas With BRAF V600E Mutation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT We present two pediatric cases of pediatric low‐grade gliomas (PLGG) with BRAF V600E mutations diagnosed and monitored using cerebrospinal fluid (CSF) liquid biopsy analyzed via digital droplet PCR (ddPCR), without tissue biopsy. Both patients were treated with dabrafenib and trametinib and monitored through clinical assessments, magnetic ...
Hannah Sultan, Damien Faury, Alexander G. Weil, Harrison J. Westwick, Nada Jabado, Sébastien Perreault   +5 more
wiley   +1 more source

Non-Explosive Mass Loss [PDF]

Symposium - International Astronomical Union, 1974
The various mechanisms whereby stars might lose matter are considered, together with the observational evidence of the mass loss rates associated with these mechanisms. The results are shown in a diagram giving the fractional mass that a star loses by various mechanisms as a function of initial mass.
openaire   +1 more source