Results 81 to 90 of about 85,254 (340)

I Spy Transits and Pulsations: Empirical Variability in White Dwarfs Using Gaia and the Zwicky Transient Facility [PDF]

, 2021
Joseph A. Guidry, Zachary P. Vanderbosch, J. J. Hermes, Brad N. Barlow, Isaac D. Lopez, Thomas M. Boudreaux, Kyle A. Corcoran, Keaton J. Bell, M. H. Montgomery, Tyler M. Heintz, Barbara G. Castanheira, Joshua S. Reding, Bart H. Dunlap, D. E. Winget, Karen I. Winget, J. W. Kuehne   +15 more
openalex   +1 more source

The Insistence of Blackness and the Persistence of Antiblackness in Ireland

Australian Journal of Social Issues, EarlyView.
ABSTRACT This paper positions Ireland as a critical site for examining the insistence of blackness and an antiblackness created and sustained through Irish ethnonationalist imaginaries and exclusionary processes. Drawing on connected sociologies and Irish Black Studies, this enquiry argues that antiblackness in Ireland operates as a generational force,
Philomena Mullen
wiley   +1 more source

Spectroscopic confirmation of UV-bright white dwarfs from the Sandage Two-Color Survey of the Galactic Plane

, 2011
We present spectroscopic observations confirming the identification of hot white dwarfs among UV-bright sources from the Sandage Two-color Survey of the Galactic plane and listed in the Lanning (Lan) catalog of such sources.
Beauchamp, Beauchamp, Bovy, de Zeeuw, Eisenstein, Gates, Holberg, Howard H. Lanning, Kawka, Kilic, Kilkenny, Luyten, Luyten, Lépine, Lépine, Lépine, Lépine, McCook, Moehler, Monet, P. Bergeron, Ruiz, Subasavage, Sébastien Lépine, Tremblay, Tremblay, Vennes, Walker, Wood   +28 more
core   +1 more source

Phosphate Removal by ZIF‐8 and Magnetic Fe3O4/ZIF‐8: A Comparative Study of Capacity, Kinetics, and Regeneration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study presents a comparative evaluation of phosphate adsorption on pristine ZIF‐8 and Fe3O4‐doped ZIF‐8 (Fe3O4/ZIF‐8), a hybrid adsorbent combining high surface area with magnetic separability. Structural integrity and composition were confirmed using SEM, XRD, FTIR, and XPS.
Edward Hartman Ernest, Maria Stefani, Immanuel Joseph Ondang, Artik Elisa Angkawijaya, Shella Permatasari Santoso, Hsien‐Yi Hsu, Felycia Edi Soetaredjo, Kuan‐Chen Cheng, Shin‐Ping Lin, Chang‐Wei Hsieh, Suryadi Ismadji   +10 more
wiley   +1 more source

Detection of the Temperature Dependence of the White Dwarf Mass–Radius Relation with Gravitational Redshifts

The Astrophysical Journal
Models predict that the well-studied mass–radius relation of white dwarf stars depends on the temperature of the star, with hotter white dwarfs having larger masses at a given radius than cooler stars.
Nicole R. Crumpler, Vedant Chandra, Nadia L. Zakamska, Gautham Adamane Pallathadka, Stefan Arseneau, Nicola Gentile Fusillo, J. J. Hermes, Carles Badenes, Priyanka Chakraborty, Boris T. Gänsicke, Stephen P. Schmidt   +10 more
doaj   +1 more source

A study of high proper-motion white dwarfs I. Spectropolarimetry of a cool hydrogen-rich sample

, 2012
We conducted a spectropolarimetic survey of 58 high proper-motion white dwarfs which achieved uncertainties of >2 kG in the Halpha line and >5 kG in the upper Balmer line series.
Adéla Kawka, Aurière, Aznar Cuadrado, Bagnulo, Barstow, Benvenuto, Bergeron, Bergeron, Brinkworth, Burleigh, Carollo, Carrier, Chiba, Costa, Dobbie, Dufour, Eggen, Eggen, Eggen, Fabrika, Farihi, Ferrario, Garcés, García-Berro, Garstang, Giammichele, Gianninas, Girardi, Girven, Gould, Greenstein, Hintzen, Johnson, Jordan, Jordan, Kalirai, Kawka, Kawka, Kawka, Kawka, Kawka, Kawka, Kawka, Kawka, Kawka, Kemic, Kepler, Kilic, Kilic, Kilkenny, Kleinman, Koester, Koester, Kowalski, Lamontagne, Limoges, Luyten, Luyten, Lépine, Lépine, Martin, Maxted, Maxted, McCook, Muslimov, Nordhaus, Oppenheimer, Patat, Pauli, Pokorny, Potter, Putney, Reid, Salim, Salim, Schaller, Schilbach, Schmidt, Schmidt, Schmidt, Serenelli, Silvestri, Skrutskie, Smith, Stéphane Vennes, Subasavage, Subasavage, Tout, Tremblay, Valyavin, van Leeuwen, Vennes, Vennes, Vennes, Vergely, Welsh, Wesemael, Wickramasinghe, Zuckerman, Zuckerman   +99 more
core   +1 more source

SDSS DR7 WHITE DWARF CATALOG [PDF]

The Astrophysical Journal Supplement Series, 2012
To appear ApJS, January, 2013.
Kleinman, S. J., Kepler, S. O., Koester, D., Pelisoli, Ingrid, Peçanha, Viviane, Nitta, A., Costa, J. E. S., Krzesinski, J., Dufour, P., Lachapelle, F. R., Bergeron, P., Yip, Ching Wa, Harris, Hugh C., Eisenstein, Daniel J., Althaus, Leandro Gabriel, Córsico, Alejandro Hugo   +15 more
openaire   +4 more sources

Enabling the study of gene function in gymnosperms: Virus‐induced gene silencing in Ephedra tweedieana

Applications in Plant Sciences, EarlyView.
Abstract Premise As the sister clade to angiosperms, extant gymnosperms are crucial for reconstructing ancestral gene regulatory networks in seed plants. This highlights the need for model systems representing each of their distinct lineages. However, tools to quickly and effectively investigate gene function in gymnosperms are still limited due to the
Anthony G. K. Garcia, Jo Trang Bùi, Todd P. Michael, Stefanie M. Ickert‐Bond, Verónica S. Di Stilio   +4 more
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

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

The Anatomical Record, EarlyView.
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty, Luke A. Norton, Aliénor Duhamel, Julien Benoit   +3 more
wiley   +1 more source