Open Clusters and Target Stars Selection
Massive open star clusters using the VVV survey : II. Discovery of six clusters with Wolf-Rayet stars
... cluster stars and the standard star used for the correction of the atmospheric ...all stars included in observations at a given slit position at a given time are very ...the stars were observed twice ...
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The chromospheric emission of solar-type stars in the young open clusters IC 2391 and IC 2602
... inactive stars to that of the target stars, and lastly the intrinsic variability of the chromospheric emis- sion of the star’s ...field stars they studied which cover a similar colour range to ...
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The chromospheric emission of solar-type stars in the young open clusters IC 2391 and IC 2602
... inactive stars to the target stars in IC 2391 and IC 2602 we have also deter- mined the radial velocity of our target ...the target and inactive ...
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Formation of stars and stellar clusters in galactic environment
... stellar clusters the propagation of the spiral shock and the compression of the cluster forming ...an open question about how challenging it could be for observations to find primordial cluster forming ...
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Hunting for open clusters in Gaia DR2: 582 new open clusters in the galactic disc
... 2.2. Open cluster validation with deep learning The application of DBSCAN over a large volume of data with several optimal pairs of parameters (L, minPts) picks up a large number of statistical overdensities that ...
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Open clusters in Gaia era
... the stars inside a rectangular box that we define in the J − K versus J ...the stars of the clusters from field ...of stars in the upper part of the MS produces better constrains on the proper ...
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Mass Loss from Red Giant Stars in Globular Clusters
... Every sky aperture was checked carefully and those where faint stars or scattered light were found were discarded. A median filtered sky was used for the subtraction, but sky subtracted skies frequently contained ...
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Micro-arcsecond astrometry of exoplanet host stars and starburst clusters
... per target. After the first year survey, the stars that will show a wobble in their position, will be selected as candidates for a second year ...such target within 2 years we plan to completely ...
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piRNA clusters and open chromatin structure
... piRNA clusters act as “TE traps” has been pro- posed ...piRNA clusters to passively acquire new content by chance ...piRNA clusters can then become fixed by evolutionary selection, and produce ...
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New atlas of open star clusters
... of open star clusters in the last two decades, astronomers need an easy-to- use resource to get visual information on the relative position of clusters in the ...of open star ...3291 ...
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Target Optimal Aperture Selection
... of stars on the output module as a function of time and ...of stars in the KIC and the resolution required to estimate the DVA motion, the direct computation of the FFI would be impracticably ...
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Tidal Disruptions of Stars by Black Hole Remnants in Dense Star Clusters
... In Figure 8, we show the rate of formation of BH –WDs through BH –giant close encounters computed for various late- time cluster snapshots (t > 8 Gyr) in models 1–24 plotted against the total number of BHs retained in ...
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A Differential Study of Nucleosynthesis in Open Star Clusters
... the stars categorized as non-member in the previous literature were already pre- selected as being in close spatial proximity to the members, I felt that using them as a negative labeled input would lead to flawed ...
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Estimation of the distance and the properties of open clusters with Gaia
... MEMBERSHIP SELECTION To determine the properties of a cluster, it is first essential to correctly select its members, that is, identify the stars belonging to it and separate them from background ...
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Verifying open clusters using the Gaia catalogue
... the stars in an open cluster are relatively close together, we shift every star in the plot by the dis- tance modulus of the mean parallax of the ...distant stars the error in the parallax is higher, ...
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Open clusters with Hipparcos I. Mean astrometric parameters
... the clusters closer than 300 pc and 8 additional clusters closer than 500 ...other clusters, situated further than 500 pc or with a number of Hipparcos stars smaller than 8, the mean paral- ...
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Ultracool dwarfs in open clusters and star-forming regions
... published members in the central 30 arcmin of the cluster [17, 18]. We found a total of 287 candidate members down to the deuterium-burning limit with a level of contamination expected below 15%. • Upper Sco is part of ...
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Chemical signatures of planet formation in field and open cluster stars
... field stars 9 1.3. Chemical signatures of planet formation in field stars The components of stellar binaries are usually assumed to share the same origins and identical chemical ...the stars in ...
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Low-mass stars: Open problems all along their evolution
... stellar clusters as an enhanced number of stars around log L/ log L ≈ 2, and which is due to the change in molecular weight, left over from the deepest extent of the convective envelope, when it is reached ...
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A Capabilities-Based Perspective on Target Selection in Acquisitions
... results are directionally consistent with our predictions in Hypotheses 4a and 4b. To interpret these results more clearly, we graph the results for Models IV and V in Figure 5a and 5b respectively using the same ...
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