Results 71 to 80 of about 508,501 (339)

The Updated Multiple Star Catalog [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2018
Abstract The catalog of hierarchical stellar systems with three or more components is an update of the original 1997 version. For 2000 hierarchies, the new Multiple Star Catalog (MSC) provides distances, component masses and periods, and supplementary information (astrometry, photometry, identifiers, orbits, notes).
openaire   +3 more sources

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

open access: yesFEBS 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

Bright 22 $\mu$m Excess Candidates from WISE All-Sky Catalog and Hipparcos Main Catalog

open access: yes, 2013
In this paper we present a catalog which includes 141 bright candidates ($\leq10.27$ mag, V band) showing the infrared (IR) excess at 22 $\mu$m. Of which, 38 stars are known IR excess stars or disk, 23 stars are double or multiple stars and 4 are Be ...
Gao, Liang   +7 more
core   +1 more source

Exploring Thousands of Nearby Hierarchical Systems with Gaia and Speckle Interferometry

open access: yesThe Astronomical Journal, 2023
There should be about 10,000 stellar hierarchical systems within 100 pc with primary stars more massive than 0.5 M _⊙ , and a similar amount of less-massive hierarchies.
Andrei Tokovinin
doaj   +1 more source

Herbig AeBe stars: multiplicity and consequences [PDF]

open access: yesAstrophysics and Space Science, 2014
13 pages, 5 figures, accepted for publication in Astrophysics and Space ...
Gaspard Duchêne   +2 more
openaire   +3 more sources

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

First evidence of multiple populations along the AGB from Str\"omgren photometry

open access: yes, 2017
Spectroscopic studies have demonstrated that nearly all Galactic globular clusters (GCs) harbour multiple stellar populations with different chemical compositions.
Casagrande, Luca   +5 more
core   +1 more source

Ground-layer wavefront reconstruction from multiple natural guide stars [PDF]

open access: yes, 2007
Observational tests of ground layer wavefront recovery have been made in open loop using a constellation of four natural guide stars at the 1.55 m Kuiper telescope in Arizona.
Athey A.   +17 more
core   +3 more sources

Multiplicity study of exoplanet host stars [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
AbstractWe present recent results of our ongoing multiplicity study of exoplanet host stars.
Christian Ginski   +3 more
openaire   +3 more sources

The enigmatic multiple star VV Ori

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT New photometry, including TESS data, have been combined with recent spectroscopic observations of the Orion Ib pulsating triple-star system VV Ori. This yields a revised set of absolute parameters with increased precision. Two different programmes were utilized for the light-curve analysis, with results in predictably close ...
Edwin Budding   +8 more
openaire   +3 more sources

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