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2017 Workshop on Open Skies from China to South Africa
2017 Workshop Open Skies from China to South Africa
2017/10/26
We are pleased to announce the workshop "Open Skies from China to South Africa -- Sharing Resources and Building Collaborations in Optical and Infrared Astronomy". It will be held in Lijiang, Yunnan p...
Identification of the Lithium Depletion Boundary and Age of the Southern Open Cluster Blanco 1
Identification the Lithium Depletion Boundary
2011/1/13
We present results from a spectroscopic study of the very low mass members of the Southern open cluster Blanco 1 using the Gemini-N telescope. We obtained intermediate resolution (R~4400) GMOS spectra...
Tours stars membership in Pleiades open cluster
Tours stars membership Pleiades open cluster
2010/11/15
In this paper, we study the characteristics and physical properties of the young open cluster Pleiades (NGC 1432; M45; Melotte 22; Seven Sisters) using Near Infra Red, JHK pass bands. Our results have...
The Principal Parameters of Unstudied Open Clusters with NIR Observations
Principal Parameters of Unstudied Open Clusters NIR Observations
2010/11/15
We studied the principal parameters of some previously unstudied open star clusters using the JHK Near-IR photometry (2MASS survey). These clusters have been selected from the updated Catalogs of Dais...
Stellar and substellar mass function of the young open cluster candidates Alessi 5 and beta Monocerotis
Stellar substellar mass young open cluster candidates beta Monocerotis
2010/11/10
Although the stellar and substellar populations have been studied in various young and old open clusters, additional studies in clusters in the age range from 5 to 100Myr is crucial (e.g. to give more...
The fractal spatial distribution of stars in open clusters and stellar associations
ISM structure open clusters and associations general stars formation
2010/11/11
The Interstellar Medium has a fractal structure, in the sense that gas and dust distribute in a hierarchical and self-similar manner. Stars in new-born cluster probably follow the same fractal pattern...
Chemically Peculiar A/F Stars in Open Clusters of the Milky Way
stars: abundances - stars main sequence - stars rotation - diffusion - Galaxy
2010/11/12
Abundance anomalies have been determined at the surface of many field and open cluster A
and F dwarfs. These abundance anomalies are most likely caused by microscopic diffusion at work within the sta...
Studies of Stellar Collapse and Black Hole Formation with the Open-Source Code GR1D
stellar collapse neutron stars black holes supernovae
2010/11/9
We discuss results from simulations of black hole formation in failing core-collapse
supernovae performed with the code GR1D, a new open-source Eulerian spherically-symmetric
general-relativistic hy...
Old open clusters and the Galactic metallicity gradient: Berkeley 20, Berkeley 66, and Tombaugh 2
Galaxy disc – Hertzsprung-Russell (HR) diagram – open clusters and associations
2010/11/15
To study the crucial range of Galactocentric distances between 12 and 16 kpc, where little
information is available, we have obtained V I CCD imaging of Berkeley 20 and BV I CCD
imaging of Berkeley ...
The evolution of luminosity, colour and the mass-to-luminosity ratio of Galactic open clusters: comparison of discrete vs. continuous IMF models
Galaxy Astrophysics (astro-ph.GA)
2010/12/29
We found in previous studies that standard Simple Stellar Population (SSP) models are unable to describe or explain the colours of Galactic open clusters both in the visible and in the NIR spectral ra...
Debris discs in the 27 Myr old open cluster IC4665
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/28
We present Spitzer IRAC and MIPS 24um imaging of members of the 27+/-5Myr old open cluster IC 4665. Models for the assembly of terrestrial planets through planetesimal collisions and mergers predict e...
Metallicities of Young Open Clusters I: NGC 7160 and NGC 2232
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/24
We present a moderate-resolution spectroscopic analysis of the 10-25 Myr clusters NGC 7160 and NGC 2232, using observations obtained with the WIYN 3.5-m telescope. Both NGC 7160 and NGC 2232 are found...
WIYN Open Cluster Study. XXXVIII. Stellar Radial Velocities in the Young Open Cluster M35 (NGC 2168)
open clusters and associations individual (NGC 2168) - (stars:) binaries spectroscopic
2010/3/8
We present 5201 radial-velocity measurements of 1144 stars, as part of an ongoing study of the young (150 Myr) open cluster M35 (NGC 2168). We have observed M35 since 1997, using the Hydra Multi-Objec...
Detection of solar-like oscillations from Kepler photometry of the open cluster NGC 6819
stars fundamental parameters stars oscillations stars interiors techniques photometric open clusters and associations individual (NGC 6819)
2010/3/8
Asteroseismology of stars in clusters has been a long-sought goal because the assumption of a common age, distance and initial chemical composition allows strong tests of the theory of stellar evoluti...
Photometric monitoring of binaries in open clusters and Associations：ngc6231
Photometric monitoring binaries in open clusters ngc6231
2009/6/17
Photometric monitoring of binaries in open clusters and Associations：ngc6231。