Results 51 to 60 of about 791,194 (316)

Soft No More: Gas Shielding Protects Soft Binaries from Disruption in Gas-rich Environments

The Astrophysical Journal
Binaries in dense environments are traditionally classified as soft or hard based on their binding energy relative to the kinetic energy of surrounding stars.
Mor Rozner, Hagai B. Perets
doaj   +1 more source

Multiplicity Study of Exoplanet Host Stars [PDF]

, 2010
We present recent results of our ongoing multiplicity study of exoplanet host stars.
arxiv   +1 more source

Precision Astrometry of a Sample of Speckle Binaries and Multiples with the Adaptive Optics Facilities at the Hale and Keck II Telescopes [PDF]

, 2009
Using the adaptive optics facilities at the 200-in Hale and 10-m Keck II, we observed in the near infrared a sample of 12 binary and multiple stars and one open cluster. We used the near diffraction limited images of these systems to measure the relative
Al-Shukri, Barstow, Benedict, Benedict, Cameron, Cutri, Delfosse, Dommanget, Dvorak, Eggenberger, Eisenhauer, Fischer, Han, Harmanec, Hayward, Heintz, Henry, He��miniak, Holman, J. Eisner, Jenkins, K. G. He��miniak, Lane, Launhardt, Law, Lissauer, M. Konacki, Metchev, Metchev, Mugrauer, Muterspaugh, Nelson, Neuh��user, Oppenheimer, Perryman, Pravdo, Pravdo, Raghavan, Reid, Roe, Roeser, R��ll, S. R. Kulkarni, Sahlmann, Simon, Simons, Stetson, S��derhjelm, Thompson, Unwin, Zapatero Osorio   +50 more
core   +2 more sources

FoxO1 signaling in B cell malignancies and its therapeutic targeting

FEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac, Petra Pavelkova, Laura Ondrisova, Marek Mraz   +3 more
wiley   +1 more source

Interpolated polynomial multiple zeta values of fixed weight, depth, and height [PDF]

arXiv, 2022
We define the interpolated polynomial multiple zeta values as a generalization of all of multiple zeta values, multiple zeta-star values, interpolated multiple zeta values, symmetric multiple zeta values, and polynomial multiple zeta values. We then compute the generating function of the sum of interpolated polynomial multiple zeta values of fixed ...
arxiv  

Models for the lithium abundances of multiple populations in globular clusters and the possible role of the Big Bang lithium

, 2012
Globular cluster stars show chemical abundance patterns typical of hot-CNO processing. Lithium is easily destroyed by proton capture in stellar environments, so its abundance may be crucial to discriminate among different models proposed to account for ...
Annibale D'Ercole, Asplund, Bedin, Boesgaard, Cameron, Carretta, Carretta, Carretta, Cyburt, D'Antona, D'Antona, D'Ercole, D'Ercole, D'Ercole, D'Ercole, D'Orazi, D'Orazi, de Mink, Decressin, Decressin, Enrico Vesperini, Fields, Francesca D'Antona, Gratton, Gratton, Iocco, Karakas, Koch, Korn, Korn, Lind, Meléndez, Meynet, Monaco, Monaco, Norris, Paolo Ventura, Pasquini, Pasquini, Piau, Piau, Prantzos, Ramírez, Renzini, Richard, Roberta Carini, Sbordone, Shen, Sills, Spergel, Vanbeveren, Ventura, Ventura, Ventura, Ventura, Ventura   +55 more
core   +1 more source

The relationship between the prestellar core mass function and the stellar initial mass function [PDF]

, 2007
Stars form from dense molecular cores, and the mass function of these cores (the CMF) is often found to be similar to the form of the stellar initial mass function (IMF).
A. P. Whitworth, Alves, Bate, Bate, Briceño, Chabrier, Clark, D. Nutter, D. Ward-Thompson, Delgado Donate, Delgado Donate, Elmegreen, Evans, Fischer, Goodwin, Goodwin, Goodwin, Goodwin, Goodwin, Goodwin, Hubber, Jappsen, Johnstone, Johnstone, Johnstone, Kirk, Klessen, Klessen, Kroupa, Kroupa, Kroupa, Kroupa, Kumar, Lada, Lada, Li, Luhman, Mathieu, Maxted, Motte, Motte, Muench, Nutter, Onishi, P. Kroupa, Patience, Pinfield, Reid, Reid, Reipurth, S. P. Goodwin, Sterzik, Sterzik, Testi, Umbreit, Ward-Thompson   +55 more
core   +3 more sources

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

Multiplicity of X-Ray Selected T Tauri Stars in Chamaeleon [PDF]

, 2001
We report on a multiplicity survey of a sample of X-ray selected young stars in the Chamaeleon association. We used speckle-interferometry and direct imaging to find companions in the separation range 0.13" to 6". After correction for chance alignment with background stars, we find a multiplicity (number of binaries or multiples divided by number of ...
arxiv   +1 more source

The Effects of Multiple Companions on the Efficiency of the SIM Planet Searches

, 2005
The Space Interferometry Mission (SIM) is expected to make precise astrometric measurements that can be used to detect low mass planets around nearby stars.
Ford, Eric B.
core   +2 more sources