Results 71 to 80 of about 313,257 (304)

An Enhanced Spectroscopic Census of the Orion Nebula Cluster [PDF]

, 2013
We report new spectral types or spectral classification constraints for over 600 stars in the Orion Nebula Cluster (ONC) based on medium resolution R~ 1500-2000 red optical spectra acquired using the Palomar 200" and Kitt Peak 3.5m telescopes.
Herczeg, Gregory J., Hillenbrand, Lynne A., Hoffer, Aaron S.   +2 more
core   +2 more sources

A Highly Magnetic Ultramassive White Dwarf with a 23 minute Rotation Period

The Astrophysical Journal
We present a physical characterization of Tsinghua University-Ma Huateng Telescope for Survey (TMTS) J00063798+3104160 (J0006), a rapidly rotating, ultramassive white dwarf (WD) identified in high-cadence light curves from the TMTS.
Jincheng Guo, Xiaofeng Wang, Qichun Liu, Alexei V. Filippenko, Thomas G. Brink, Jingkun Zhao, WeiKang Zhang, Yi Yang, Jie Lin, Haowei Peng, Hailiang Chen, Davron O. Mirzaqulov, Shuhrat A. Ehgamberdiev, Bin Ma, Jun Mo, Cheng Liu, Gaobo Xi, Xiaojun Jiang, Danfeng Xiang, Jicheng Zhang   +19 more
doaj   +1 more source

Stark Broadening and White Dwarfs

Open Astronomy, 2011
White dwarf and pre-white dwarfs are the best types of stars for the application of Stark broadening research results in astrophysics, since in the atmospheres of these stars physical conditions are very favorable for this line broadening mechanism - in ...
Dimitrijević Milan S., Kovačević Andjelka, Simić Zoran, Sahal-Bréchot Sylvie   +3 more
doaj   +1 more source

Treatment Decision‐Making Roles and Preferences Among Adolescents and Young Adults With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Decision‐making (DM) dynamics between adolescents and young adults (AYAs) with cancer, parents, and oncologists remain underexplored in diverse populations. We examined cancer treatment DM preferences among an ethnically and socioeconomically diverse group of AYAs and their parents.
Amanda M. Gutierrez, Jill O. Robinson, Wendy A. Allen‐Rhoades, Hadley S. Smith, Isabel Canfield, Rebecca L. Hsu, Sarah R. Scollon, Lauren R. Desrosiers‐Battu, Nicole M. Schneider, Frank Y. Lin, Donald Williams Parsons, Sharon E. Plon, Mary A. Majumder, Janet Malek, Amy L. McGuire   +14 more
wiley   +1 more source

3D Simulations Demonstrate Propagating Thermohaline Convection for Polluted White Dwarfs

The Astrophysical Journal Letters
Polluted white dwarfs (WDs) with small surface convection zones deposit significant concentrations of heavy elements to the underlying radiative interior, presumably driving thermohaline convection.
Imogen G. Cresswell, Adrian E. Fraser, Evan B. Bauer, Evan H. Anders, Benjamin P. Brown   +4 more
doaj   +1 more source

Christoph Schlingensief e la performance reality. Freak Stars 3000, U 3000, Bitte liebt Österreich (o del corpo della televisione)

piano b, 2019
Il rapporto tra arte e televisione è complesso e articolato. Sono diversi gli artisti che ne hanno sperimentato le possibilità sia da un punto di vista fisico, utilizzandola come supporto come fece Mario Schifano, sia da un punto di vista contenutistico ...
Emanuele Rinaldo Meschini
doaj   +1 more source

Pulsating Stars: o Contexto Histórico de Pós-detecção dos Pulsares no Campo da Física e da Astronomia

Revista Brasileira de Pesquisa em Educação em Ciências, 2022
Em fevereiro de 1968, a então estudante de pós-graduação Jocelyn Bell, seu orientador Antony Hewish e demais integrantes do grupo de radioastrônomos da Universidade de Cambridge publicaram um artigo na Revista Nature sobre incomuns sinais pulsados em ...
Larissa do Nascimento Pires, Luiz O. Q. Peduzzi   +1 more
doaj   +1 more source

Cognitive Functioning in Vorinostat‐Treated Pediatric and Young Adult Patients Over the First 180 Days After Hematopoietic Stem Cell Transplant

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Cognitive and psychological difficulties could negatively interfere with treatment adherence and quality of life before and after hematopoietic stem cell transplant (HSCT). Methods to mitigate these changes may have positive effects on treatment success.
Kristen L. Votruba, Michelle Rozwadowski, Thomas Braun, April Rahrig, Edward Peres, Kirsten M. Williams, Vanessa Fabrizio, Julie‐An Talano, Carrie L. Kitko, Nicolas Parnell, Pavan Reddy, Sung Won Choi   +11 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

The Binary White Dwarf LHS 3236

, 2013
The white dwarf LHS 3236 (WD1639+153) is shown to be a double-degenerate binary, with each component having a high mass. Astrometry at the U.S. Naval Observatory gives a parallax and distance of 30.86 +/- 0.25 pc and a tangential velocity of 98 km/s, and
Canzian, Blaise, Dahn, Conard, Dupuy, Trent, Guetter, Harry, Harris, Hugh, Hartkopf, William, Ireland, Michael, Leggett, Sandy, Levine, Stephen, Liu, Michael, Luginbuhl, Christian, Monet, Alice, Stone, Ronald, Subasavage, John, Tilleman, Trudy, Walker, Richard   +15 more
core   +1 more source