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"High-resolution", or "long-baseline", science with the SKA and its precursors covers a broad range of topics in astrophysics. In several research areas, the coupling between improved brightness sensi...
High-energy astrophysics is a relatively young scientific field, made possible by space-borne telescopes. During the half-century history of x-ray astronomy, the sensitivity of focusing x-ray telescop...
High-resolution simulations of planetesimal formation in turbulent protoplanetary discs
High-resolution simulations turbulent protoplanetary discs
2011/1/10
We present high-resolution computer simulations of dust dynamics and planetesimal formation in turbulence generated by the magnetorotational instability. We show that the turbulent viscosity associate...
High Resolution HDS/SUBARU chemical abundances of the young stellar cluster Palomar 1
abundances Galaxy abundances globular clusters individual
2010/11/9
Context. Palomar 1 is a peculiar globular cluster (GC). It is the youngest Galactic GC and it has been tentatively associated to several of the substructures recently discovered in the Milky Way (MW),...
A High-Resolution Survey of HI Absorption toward the Central 200 pc of the Galactic Center
High-Resolution Survey Galactic Center
2010/11/10
We present an HI absorption survey of the central 250 pc of the Galaxy. Very Large Array (VLA) observations were made at 21 cm in the DnC and CnB con gurations and have a resolution of 15"(0.6 pc at ...
Dissecting the Moth: Discovery of an off-centered ring in the HD 61005 debris disk with high-resolution imaging
circumstellar matter — planetary systems protoplanetary disks — Techniques
2010/11/15
The debris disk known as “The Moth” is named after its unusually asymmetric surface brightness distribution. It is located around the ∼90Myr old G8V star HD 61005 at 34.5 pc and has previously b...
High-resolution spectroscopic view of planet formation sites
planetary systems protoplanetary disks hydrodynamics line pro les
2010/11/15
Theories of planet formation predict the birth of giant planets in the inner, dense, and
gas-rich regions of the circumstellar disks around young stars. These are the regions from which strong CO emi...
Wavelets with Ridges: A High-Resolution Representation of Cataclysmic Variable Time-Series
methods data analysis — techniques photometric
2010/11/12
Quasi-periodic oscillations and dwarf nova oscillations occur in dwarf novae and nova-like variables during outburst and occasionally during quiescence, and have analogues in high-mass X-ray binaries ...
Final Results from the High Resolution Fly's Eye (HiRes) Experiment
High Energy Astrophysical Phenomena (astro-ph.HE)
2011/1/4
Final results from the High Resolution Fly's Eye (HiRes) on the observation of the Greisen-Zatsepin-Kuzmin cutoff in the cosmic ray spectrum are presented. We observe a cutoff consistent with the GZK ...
Chandra high resolution spectroscopy of the circumnuclear matter in the Broad Line Radio Galaxy 3C445
High Energy Astrophysical Phenomena (astro-ph.HE)
2010/12/29
We present evidence for X-ray line emitting and absorbing gas in the nucleus of the Broad-Line Radio Galaxy (BLRG), 3C 445. A 200ks Chandra LETG observation of 3C 445 reveals the presence of several h...
HERMES: a high-resolution fibre-fed spectrograph for the Mercator telescope
Instrumentation spectrographs Techniques spectroscopic Techniques radial velocities Stars: abundances
2010/11/9
The HERMES high-resolution spectrograph project aims at exploiting the specific potential of small but flexible telescopes in observational astrophysics. The optimised optical design of the spectrogra...
High-resolution mapping of the physical conditions in two nearby active galaxies based on 12CO(1-0), (2-1) and (3-2) lines
Galaxy Astrophysics (astro-ph.GA)
2010/12/29
We present a detailed analysis of high resolution observations of the three lowest CO transitions in two nearby active galaxies, NGC4569 and NGC4826. The CO(1-0) and (2-1) lines were observed with the...
Calcium and light-elements abundance variations from high resolution spectroscopy in globular clusters
abundances stars evolution globular clusters general
2010/3/8
We use abundances of Ca, O, Na, Al from high resolution UVES spectra of 200 red giants in 17 globular clusters (GCs) to investigate the correlation found by Lee et al. (2009) between chemical enrichme...
Stromgren Photometry and High Resolution Spectroscopy of Very Metal-Poor Stars
Stromgren Photometry High Resolution Spectroscopy Very Metal-Poor Stars
2009/6/25
Stromgren Photometry and High Resolution Spectroscopy of Very Metal-Poor Stars。
Using high resolution data to investigate the variability Of gg carinae system
gg carinae system high resolution data
2009/6/17
Using high resolution data to investigate the variability Of gg carinae system。