Results 11 to 20 of about 209,546 (281)

Fractional yields inferred from halo and thick disk stars [PDF]

Serbian Astronomical Journal, 2013
Linear [Q/H]-[O/H] relations, Q = Na, Mg, Si, Ca, Ti, Cr, Fe, Ni, are inferred from a sample (N = 67) of recently studied FGK-type dwarf stars in the solar neighbourhood including different populations (Nissen and Schuster 2010, Ramirez et al ...
Caimmi R.
doaj   +1 more source

Dwarf spheroidal galaxies: Keystones of galaxy evolution [PDF]

Publications of the Astronomical Society of the Pacific, 1994
Dwarf spheroidal galaxies are the most insignificant extragalactic stellar systems in terms of their visibility, but potentially very significant in terms of their role in the formation and evolution of much more luminous galaxies. We discuss the present observational data and their implications for theories of the formation and evolution of both dwarf
Gallagher III, John S., Wyse, Rosemary F. G.   +1 more
openaire   +2 more sources

The Effect of Gas Fraction on the Morphology and Time-scales of Disc Galaxy Mergers [PDF]

, 2009
Gas-rich galaxy mergers are more easily identified by their disturbed morphologies than mergers with less gas. Because the typical gas fraction of galaxy mergers is expected to increase with redshift, the under-counting of low gas-fraction mergers may ...
Abazajian, Abraham, Barden, Barnes, Barnes, Bell, Bell, Bell, Bournaud, Bournaud, Boylan-Kolchin, Boylan-Kolchin, Brinchmann, Brown, Bundy, Bundy, Cassata, Conselice, Conselice, Conselice, Cox, Cox, Cox, Cox, Cox, Daddi, De Ravel, Di Matteo, Di Matteo, Erb, Erb, Faber, Hopkins, Hopkins, Hopkins, Jennifer M. Lotz, Joel R. Primack, Jogee, Johansson, Jonsson, Jonsson, Jonsson, Katz, Kennicutt, Khalatyan, Le Fèvre, Leitherer, Lin, Lin, Lopez-Sanjuan, Lotz, Lotz, Lotz, Lotz, Martig, Melbourne, Mihos, Naab, Naab, Noekse, Patrik Jonsson, Patton, Robertson, Robertson, Rocha, Shi, Sinha, Springel, Springel, Springel, T. J. Cox, Tacconi, Van Dokkum, Wetzstein   +73 more
core   +1 more source

An analysis of the evolving comoving number density of galaxies in hydrodynamical simulations [PDF]

, 2015
The cumulative comoving number-density of galaxies as a function of stellar mass or central velocity dispersion is commonly used to link galaxy populations across different epochs.
Griffen, Brendan F., Hernquist, Lars, Leal Machado, Francisco, Ma, Chung-Pei, McKinnon, Ryan, McKinnon, Ryan Michael, Nelson, Dylan, Pillepich, Annalisa, Rodriguez-Gomez, Vicente, Springel, Volker, Torrey, Paul A., Vogelsberger, Mark, Wellons, Sarah   +12 more
core   +3 more sources

Tertiary mirror location diversity on very large etendue telescope architectures [PDF]

EPJ Web of Conferences
Two distinct reflective telescope designs utilizing a variation of three-mirror anastigmat configuration were investigated. We demonstrate how the strategic placement of the tertiary mirror significantly influences the telescope's form factor, enabling ...
Kim Daewook, Cho Hyejeon
doaj   +1 more source

Targeted decrease of portal hepatic pressure gradient improves ascites control after TIPS

Hepatology, EarlyView., 2022
The river diagram demonstrates that after transjugular intrahepatic portosystemic shunt insertion (TIPS) the majority of patients without ascites and 50% of the patients with ascites detectable at ultrasound, show the best response in the long term follow‐up.
Alexander Queck, Louise Schwierz, Wenyi Gu, Philip G. Ferstl, Christian Jansen, Frank E. Uschner, Michael Praktiknjo, Johannes Chang, Maximilian J. Brol, Filippo Schepis, Manuela Merli, Christian P. Strassburg, Jennifer Lehmann, Carsten Meyer, Jonel Trebicka   +14 more
wiley   +1 more source

The Evolution of Ellipticals, Spirals and Irregulars: Overcoming Selection Bias [PDF]

, 2000
The Hubble Deep Fields represent our best opportunity for probing galaxy evolution over a substantive look-back time. However as with any dataset the HDFs are prone to selection biases.
Driver, Simon
core   +3 more sources

Janus kinase 2 inhibition by pacritinib as potential therapeutic target for liver fibrosis

Hepatology, EarlyView., 2022
Diagram of the activation of the profibrotic and procontractile Janus kinase 2 (JAK2)/Ras homolog family member A/Rho‐kinase pathway and the inhibition of phosphorylated JAK2 by pacritinib to inhibit hepatic stellate cell activity. Abstract Background and Aims Janus kinase 2 (JAK2) signaling is increased in human and experimental liver fibrosis with ...
Sandra Torres, Cristina Ortiz, Nadine Bachtler, Wenyi Gu, Leon D. Grünewald, Nico Kraus, Robert Schierwagen, Christoph Hieber, Caroline Meier, Olaf Tyc, Maximilian Joseph Brol, Frank Erhard Uschner, Bart Nijmeijer, Christoph Welsch, Marie‐Luise Berres, Carmen Garcia‐Ruiz, Jose Carlos Fernandez‐Checa, Christian Trautwein, Thomas J. Vogl, Stefan Zeuzem, Jonel Trebicka, Sabine Klein   +21 more
wiley   +1 more source

Galaxy Evolution from Emission Linewidths [PDF]

, 2002
The major thrust of the Tully-Fisher (TF) surveys of distant galaxies is the measurement of linewidths rather than mere redshifts or colors. Linewidths are a measure of galaxy mass and should therefore be a more stable indicator of size than galaxy ...
Courteau, Stephane, Sohn, Young-Jong
core   +3 more sources

Evolution of galaxy clustering [PDF]

Monthly Notices of the Royal Astronomical Society, 1998
Four pages, 1 figure.
openaire   +2 more sources