Results 61 to 70 of about 220,693 (280)

Coevolution of Nuclear Star Clusters and Massive Black Holes: Extreme-mass-ratio Inspirals

The Astrophysical Journal
We explore extreme-mass-ratio inspirals (EMRIs) in the coevolution of massive black holes (MBHs) and nuclear star clusters (NSCs), which host diverse stellar populations across a wide range of masses. The dynamics are simulated self-consistently with GNC
Fupeng Zhang, Pau Amaro Seoane
doaj   +1 more source

Stellar evolution and modelling stars

, 2017
In this chapter I give an overall description of the structure and evolution of stars of different masses, and review the main ingredients included in state-of-the-art calculations aiming at reproducing observational features.
A. Bressan, A. Dotter, A. Maeder, A. Miglio, A. Pietrinferni, A. Weiss, A.M. Serenelli, A.M. Serenelli, A.M. Serenelli, B.E.J. Pagel, C. Angulo, C.A. Iglesias, C.J. Conselice, D. Cordier, D. Huber, D. Maoz, D. Mihalas, D. Reimers, D. Saumon, D.A. Vandenberg, D.G. Hummer, D.R. Alexander, E. Böhm-Vitense, E. Caffau, E.G. Adelberger, E.G. Adelberger, F. Herwig, F. Matteucci, F.J. Rogers, F.J. Rogers, G. Steigman, H. Costantini, H. Kjeldsen, I. Hubeny, J. Bland-Hawthorn, J. Choi, J. Christensen-Dalsgaard, J. Christensen-Dalsgaard, J. Christensen-Dalsgaard, J.-P. Cox, J.-P. Zahn, J.N. Bahcall, J.N. Bahcall, J.N. Winn, J.W. Ferguson, K.C. Schlaufman, L. Casagrande, L. Girardi, L. Silva Da, M. Asplund, M. Camenzind, M. Gabriel, M. Haft, M. Marta, M. Peimbert, M. Pinsonneault, M. Salaris, M. Schwarzschild, M. Schönberg, N. Grevesse, N. Itoh, N. Itoh, N.R. Badnell, P. Eggenberger, P. Kumar, R. Jimenez, R. Trampedach, S. Basu, S. Cassisi, S. Cassisi, S. Deheuvels, S. Deheuvels, S. Deheuvels, S. Turcotte, S.J. Smartt, T. Constantino, T.R. Bedding, V. Silva Aguirre, V. Silva Aguirre, V. Silva Aguirre, V. Silva Aguirre, V.M. Canuto, V.M. Canuto, W. Unno, W.P. Ledoux   +84 more
core   +1 more source

‘They Need to Hear You Say It’: Healthcare Professionals’ Perspectives on Barriers and Enablers to End‐of‐Life Discussions With Adolescents and Young Adults With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT End‐of‐life conversations with adolescents and young adults (AYAs) with cancer rarely occur without the guidance of healthcare professionals. As a part of the ‘Difficult Discussions’ study, focused on palliative care and advance care planning discussions with AYAs with cancer, we investigated the factors that healthcare professionals identify ...
Justine Lee, Holly Evans, Claire E. Wakefield, Antoinette Anazodo, Richard J. Cohn, Brittany C. McGill, Elizabeth A. Lobb, Lori Wiener, Madeleine L. Juhrmann, Ursula M. Sansom‐Daly   +9 more
wiley   +1 more source

A Semi-analytical Model for Stellar Evolution in AGN Disks

The Astrophysical Journal
Disks of gas accreting onto supermassive black holes may host numerous stellar-mass objects, formed within the disk or captured from a nuclear star cluster.
Alexander J. Dittmann, Matteo Cantiello
doaj   +1 more source

Effects of Magnetic Braking and Tidal Friction on Hot Jupiters

, 2009
Tidal friction is thought to be important in determining the long-term spin-orbit evolution of short-period extrasolar planetary systems. Using a simple model of the orbit-averaged effects of tidal friction Eggleton, Kiseleva & Hut (1998), we analyse the
Adrian J. Barker, Cresswell, Gordon I. Ogilvie, Hebrard, Hut, Hut, Papaloizou, Verbunt   +7 more
core   +1 more source

Feasibility and Safety of High‐Dose Proton Re‐Irradiation in Recurrent Pediatric Central Nervous System Tumors: A Single‐Institution Retrospective Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Pediatric central nervous system (CNS) tumors often recur despite multimodality therapy. Although re‐irradiation (re‐RT) has historically been limited by concerns for severe late toxicities, modern techniques have renewed interest in this approach. Proton therapy provides dosimetric advantages that may enable curative re‐treatment with
Jin‐Ho Song, Jonathan Baron, Carlos Chavez Perez, Sidharth Ramesh, Jane Minturn, Kavita A. Desai, Amish C. Shah, Jean M. Belasco, Kristina A. Cole, Michael J. Fisher, Phillip B. Storm, Peter M. Madsen, Goldie Kurtz, Robert A. Lustig, Christine Hill‐Kayser, Michael J. LaRiviere   +15 more
wiley   +1 more source

Star Clusters

, 1993
This review concentrates almost entirely on globular star clusters. It emphasises the increasing realisation that few of the traditional problems of star cluster astronomy can be studied in isolation: the influence of the Galaxy affects dynamical ...
AK Dupree, B Yanny, CA Christian, CD Bailyn, CD Bailyn, CD Bailyn, DC Heggie, DF Chemoff, DF Chernoff, E Terlevich, E Terlevich, ES Phinney, ES Phinney, F Rasio, G Meylan, H Cohn, HB Richer, IR King, JE Norris, JG Hills, JG Hills, JH Applegate, JS Stodólkiewicz, K Cudworth, K Cudworth, L Angeletti, L Spitzer Jr., L Spitzer Jr., M Auriere, M Capaccioli, M Hénon, MB Davies, P Hut, P Hut, P Hut, PW Cleary, R Buonanno, R Zinn, R Zinn, RAW Elson, RP Grabhorn, S Bergh van den, S Djorgovski, S Djorgovski, S Hoerner von, S Hoerner von, S Inagaki, SE Cederbloom, SJ Aarseth, SJ Aarseth, SJ Aarseth, SJ Aarseth, SJ Aarseth, SLW McMillan, TR Lauer, TS Statler, W Benz, Y-W Lee   +57 more
core   +1 more source

Defining Roles in Pediatric Palliative Care: Perspectives From Oncology and Palliative Care Teams

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Early integration of pediatric palliative care (PPC) is associated with improved symptom management, quality of life, and healthcare utilization for children with cancer. Despite this, variation persists in how PPC is understood, operationalized, and integrated within pediatric oncology programs. In particular, ambiguity surrounding
Leeat Granek, Lori Wiener, Stephanie Veldhuijzen van Zanten, Donna Johnston, Fyeza Hasan, Adam Rapoport, Nathasha Datoo, Kimberley Widger, Sumit Gupta, Karen Fergus, Anthony K. C. Chan, Alisha Kassam, Emily McCullogh, Dave Lysecki   +13 more
wiley   +1 more source

Evolution of Low Surface Brightness Ultrathin Galaxies: The Role of Dark Matter Halo and Bar Formation on Disk Thickness

The Astrophysical Journal
We investigate how stellar disks sustain their ultrathin structure throughout their evolution. We follow the evolution of ultrathin stellar disks with varying dark matter (DM) halo concentration ( c ) using collisionless N -body simulations with AREPO ...
K. Aditya, Arunima Banerjee
doaj   +1 more source

An Integrated Picture of Star Formation, Metallicity Evolution, and Galactic Stellar Mass Assembly

, 2008
We present an integrated study of star formation and galactic stellar mass assembly from z=0.05-1.5 and galactic metallicity evolution from z=0.05-0.9 using a very large and highly spectroscopically complete sample selected by rest-frame NIR bolometric ...
A. J. Barger, Barbaro G, L. L. Cowie, Madau P., Pagel B. E. J.   +4 more
core   +1 more source