Results 101 to 110 of about 70,663 (294)

The Masses of Population II White Dwarfs

, 2009
Globular star clusters are among the first stellar populations to have formed in the Milky Way, and thus only a small sliver of their initial spectrum of stellar types are still burning hydrogen on the main-sequence today.
Bedin, Brad M. S. Hansen, Calamida, Catelan, Chabrier, D. Saul Davis, Davis, Davis, Eisenstein, Fusi-Pecci, Goldberg, Gratton, Habing, Hansen, Hansen, Hansen, Harvey B. Richer, Holberg, Jason S. Kalirai, Kalirai, Kalirai, Kalirai, Kalirai, Kawaler, Liebert, Liebert, Marcio Catelan, Monelli, Morrison, P. Bergeron, Peterson, R. Michael Rich, Renzini, Richer, Richer, Richer, Rubin, Salaris, Salaris, Tremblay, VandenBerg, Weidemann, Weidemann, Williams, Williams   +44 more
core   +1 more source

General Framework for Multi‐Degree‐of‐Freedom Stiffness Matrix Updating for Iterative Solution Algorithms in Hybrid Simulation

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Iterative solvers are advantageous for handling nonlinear structural analysis problems. The iterative solvers often require updating the stiffness matrix, which limits their application in static and pseudo‐dynamic hybrid simulations because: (1) updating the stiffness matrix of a system involving a physical specimen is challenging; (2 ...
Junyan Xiao, Oh‐Sung Kwon, Evan Bentz
wiley   +1 more source

Exploring the Nexus Between Sustainability Index and Central European Stock Markets Competitiveness: Evidence Through Time–Frequency Analysis and SHAP

Journal of Forecasting, EarlyView.
ABSTRACT Sustainability has become an important factor shaping financial markets and investor behavior. This paper examines the relationship between sustainability indices and Central European stock markets using a time–frequency approach. Wavelet coherence is employed to capture time‐varying co‐movements between sustainability indices and stock market
Zuzana Janková, Dipak Kumar Jana, Michal Páleš, Elena Fleaca, Petr Dostál   +4 more
wiley   +1 more source

A Massive White Dwarf or Low-mass Neutron Star Discovered by LAMOST

The Astrophysical Journal
We report the discovery of a close binary J0606+2132 (Gaia DR3 3423365496448406272) with P _obs = 2.77 days containing a possible massive white dwarf (WD) or a neutron star (NS) using LAMOST spectroscopic data.
Xinlin Zhao, Song Wang, Pengfei Wang, Chuanjie Zheng, Haibo Yuan, Jifeng Liu   +5 more
doaj   +1 more source

A Census of White Dwarfs Within 40 Parsecs of the Sun

, 2010
Our aim is to compile a catalog of white dwarfs within 40 parsecs of the Sun, in which newly discovered objects would significantly increase the completeness of the current census.
Bergeron, P., Lepine, Sebastien, Limoges, M. -M.   +2 more
core   +1 more source

Thirty-two New Bright ZZ Ceti Stars from TESS: Adding Cycles 4 and 5

The Astrophysical Journal
Analyzing all 120 s and 20 s light curves obtained by the TESS satellite up to Sector 69—the end of the fifth year of observations—for all known white dwarfs and white dwarf candidates up to G = 17.5 mag, we report the discovery of 32 new pulsating DA ...
Alejandra D. Romero, S. O. Kepler, Gabriela Oliveira da Rosa, J. J. Hermes   +3 more
doaj   +1 more source

Rethinking law in books versus law in action in China's first experiment of a personal insolvency regime: Towards a more debtor‐oriented procedural design

International Insolvency Review, EarlyView.
Abstract Although a local experiment, the promulgation of the Regulations of Shenzhen Special Economic Zone on Personal Bankruptcy (SPBR) in 2020 was hailed as a significant milestone in China's insolvency lawmaking which has thus far addressed only corporate insolvencies.
Jenny Fu, Jin Chun
wiley   +1 more source

Measuring the Mass–Radius Relation of White Dwarfs Using Wide Binaries

The Astrophysical Journal
Measuring the mass–radius relation of individual white dwarfs is an empirically challenging task that has been performed for only a few dozen stars. We measure the white dwarf mass–radius relation using the gravitational redshifts and radii of 135 white ...
Stefan Arseneau, Vedant Chandra, Hsiang-Chih Hwang, Nadia L. Zakamska, Gautham Adamane Pallathadka, Nicole R. Crumpler, J. J. Hermes, Kareem El-Badry, Hans-Walter Rix, Keivan G. Stassun, Boris T. Gänsicke, Joel R. Brownstein, Sean Morrison   +12 more
doaj   +1 more source

Simulating Gaia performances on white dwarfs

, 2005
One of the most promising space missions of ESA is the astrometric satellite Gaia, which will provide very precise astrometry and multicolour photometry, for all 1.3 billion objects to V~20, and radial velocities with accuracies of a few km/s for most ...
Adams, Alcock, Alcock, Benvenuto, Binney, Dehnen, Díaz-Pinto, Enrique García-Berro, Francesca Figueras, García-Berro, García-Berro, García-Berro, García-Berro, García-Berro, García-Berro, Hakkila, Hansen, Hernanz, Hollik, Iben, Isern, Isern, Isern, Isern, Isern, Isern, James, Jordi Isern, Koester, Lasserre, Lorén-Aguilar, Marković, Mihalas, Noh, Ogorodnikov, Oswalt, Perryman, Press, Richer, Salaris, Salaris, Salim, Santiago Torres, Scalo, Schmidt, Torres, Torres, Torres, Winget   +48 more
core   +1 more source

Predicting Major Depression Among Diverse Online Gamers: The Role of Internet Addiction and Spirituality

Journal of Addictions &Offender Counseling, EarlyView.
ABSTRACT This study analyzed whether religious or spiritual affiliation and therapy enrollment protect against symptoms meeting Major Depressive Disorder criteria beyond demographic, Internet addiction, and described therapy enrollment. Findings illustrated one risk factor and one protective factor associated with experiencing symptoms that meet Major ...
Lindsay A. Lundeen, John R. McCall
wiley   +1 more source