Results 131 to 140 of about 476,629 (275)
Towards using optical/NIR photometry to measure the temperature of O stars [PDF]
arXiv, 2007 It has been traditionally stated that it is not possible to use optical/NIR photometry to measure the temperatures of O stars. In this contribution we describe the steps required to overcome the hurdles that have prevented this from happening in the past and we present our preliminary results for the low-extinction case.
arxiv
MCAO near-IR photometry of the Globular Cluster NGC 6388: MAD observations in crowded fields
, 2008 Deep photometry of crowded fields, such as Galactic Globular Clusters, is severely limited by the actual resolution of ground-based telescopes. On the other hand, the Hubble Space Telescope does not provide the near-infrared (NIR) filters needed to allow
A. Baruffolo +58 more
core +2 more sources
Liverpool Telescope Optical Photometry Following the 2006 Outburst of RS Ophiuchi [PDF]
arXiv, 2008 We present a preliminary report on the broadband optical photometry of the 2006 outburst of the recurrent nova RS Ophiuchi. These data were obtained using the robotic 2m Liverpool Telescope and cover the outburst from day 27 through day 548.
arxiv
Resolving Stellar Populations outside the Local Group: MAD observations of UKS2323-326
, 2008 We present a study aimed at deriving constraints on star formation at intermediate ages from the evolved stellar populations in the dwarf irregular galaxy UKS2323-326.
A. Baruffolo +40 more
core +1 more source
Imaging of the Stellar Population of IC10 with Laser Guide Star Adaptive Optics and the Hubble Space Telescope [PDF]
, 2007 We present adaptive optics (AO) images of the central starburst region of the dwarf irregular galaxy IC10. The Keck 2 telescope laser guide star was used to achieve near diffraction-limited performance at H and K' (Strehls of 18% and 32%, respectively ...
Borissova J. +6 more
core +2 more sources
Astrocytes Mediate Psychostimulant‐Induced Alterations of Spike‐Timing Dependent Synaptic Plasticity
Glia, Volume 73, Issue 5, Page 1051-1067, May 2025.Main Points Cocaine and amphetamine stimulates astrocytes and downregulates the GLT‐1. The dysfunction in GLT‐1 modify EPSP kinetics and modulate STDP, switching LTP to LTD in psychostimulant‐treated mice. These effects were restored by upregulation of GLT‐1.
Samuel Alberquilla +7 more
wiley +1 more source
Five new very low mass binaries [PDF]
, 2006 We report the discovery of companions to 5 nearby late M dwarfs (>M5), LHS1901, LHS4009, LHS6167, LP869-26 and WT460, and we confirm that the recently discovered mid-T brown dwarf companion to SCR1845-6357 is physically bound to that star.
A.-M. Lagrange +42 more
core +4 more sources
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 7, 16 April 2025.Abstract Atmospheric mineral dust deposition is an important source of nutrients for ocean and tropical island ecosystems. Direct deposition measurements are generally more reliable at local scale than dust deposition models, even those based on aerosol concentration measurements.
Yangjunjie Xu‐Yang +5 more
wiley +1 more source
A multichannel fiber optic photometer present performance and future developments [PDF]
A three channel photometer for simultaneous multicolor observations was designed with the aim of making possible highly efficient photometry of fast variable objects like cataclysmic variables.
Barwig, H., Huber, G., Schoembs, R.
core +1 more source
Protein Science, Volume 34, Issue 4, April 2025.Abstract Group A Streptococcus (GAS) M‐related proteins (Mrp) are dimeric α‐helical coiled‐coil cell‐wall‐attached proteins. During infection, Mrp recruit human fibrinogen (Fg) to the bacterial surface, enhancing phagocytosis resistance and promoting growth in human blood.
Emma‐Jayne Proctor +12 more
wiley +1 more source