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Παρουσίαση του PowerPoint A statistical study of C IV regions in 20 Oe-stars Dr Antonios Antoniou University of Athens, Faculty of Physics, Department of Astrophysics,…
Formation of Neutron Stars Compact objects more massive than the Chandrasekhar Limit 14 Msun collapse further → Pressure becomes so high that electrons and protons combine…
MNRAS 000, 1–18 2018 Preprint 16 February 2018 Compiled using MNRAS LATEX style file v3.0 Characterising the observational properties of δ Sct stars in the era of space…
THE FORMATION OF MASSIVE STARS η Carina NASA ESA N Smith THE FORMATION OF MASSIVE STARS Andrew Cunningham Edith Falgarone Richard Klein Mark Krumholz Andrew Myers Stella…
PLS Open Drip Proof three-phase asynchronous motors A8.1 General information Open Drip Proof three-phase asynchronous motors, series PLS, according to IEC 60034, 60066, 60072…
Evidence from the Motions of Old Stars that the Galaxy Collapsed O J Eggen D Lynden-Bell and A R Sandage 1962 ApJ No 136 p 748 Presented by: Michael Solway All equations…
FACULTY OF SCIENCE Asteroseismic picture of the δ Sct star HD 41641 based on CoRoT photometry and HARPS high-resolution spectroscopy Ana ESCORZA Promotor: Dr K Zwintz Instituut…
The X-Ray Life of Stars: Low-Mass and Pre-Main Sequence Manuel Güdel University of Vienna On the main sequence: from the Sun back to ZAMS Younger still: Protoplanetary disks…
Magnetic Channeling and Confinement in the Hypersonic Winds of Massive, Luminous Stars Rich Townsend University of Delaware Stan Owocki Asif ud-Doula Mary Oksala David Cohen…
Slide 1in the Crab Nebula StaelinFest 2011 July 18, 2011 Figure 1 1963-1966 1968* 1968-1972 1979-1990 1988* CMB (Burke) Pulsars (Reifenstein) Venus Water Vapor Radiometer
Slide 1 Slide 2 Stars Properties: Brightness and Color Reasons for brightness: Proximity Temperature of star Slide 3 Parallax The angle of the parallax, θ, in arcsecs is…
Magnetism in Cool Evolved Stars: the M giants EK Bootis and β Pegasi S. Georgiev1,2, R. Konstantinova-Antova1 , A. Lèbre2, M. Aurière3, C. Charbonnel3,4, A. Palacios2,…
Signatures of Peculiar Supernova Nucleosynthesis in Extremely α-enhanced Stars We have performed a spectroscopic study on several extremely alpha-enhanced stars having FeH…
World Symbology Quilt A joint project between the Commercial Art students at TCHS Pickering, the Fabric Workshop Museum, and the Arts in Education Partnership of the PA Council…
Evidence from the Motions of Old Stars that the Galaxy Collapsed O J Eggen D Lynden-Bell and A R Sandage 1962 ApJ No 136 p 748 Presented by: Michael Solway All equations…
The dawn of galaxy formation from a chemo-archeological perspective C.J.Walcher Leibniz Institut für Astrophysik Potsdam ! P. Coelho, A. Gallazzi, G. Bruzual, S. Charlot,…
MNRAS 000, 1–31 (2018) Preprint 5 July 2018 Compiled using MNRAS LATEX style file v3.0 Testing Gravity with wide binary stars like α Centauri Indranil Banik1∗ and Hongsheng…
Evidence from the Motions of Old Stars that the Galaxy Collapsed O J Eggen D Lynden-Bell and A R Sandage 1962 ApJ No 136 p 748 Presented by: Michael Solway All equations…
Binary Stars and Fundamental Stellar Parameters PHY 521 Lecture 26 Dec 6 2011 PHY 521 Lecture 26 2 Mass • most fundamental of stellar parameters – L ∝ M38 – τMS…
Early Galactic Nucleosynthesis: The Impact of HST/STIS Spectra of Metal-Poor Stars Chris Sneden University of Texas A Very Collaborative Effort Definitions: [A/B] = log10(NA/NB)star…