Results 81 to 90 of about 5,935,155 (266)

Multicolor CCD Photometry of the Open Cluster IC 361

open access: yesOpen Astronomy, 2010
CCD photometry in the eight-color Vilnius + I system for 7250 stars down to I =19.6 mag has been obtained in the 20′ × 26′ field of the open cluster IC 361 in Camelopardalis. The catalog of 1420 stars down to V ~ 18.5 mag is presented.
Zdanavičius J.   +4 more
doaj   +1 more source

Spectroscopic Study of the Open Cluster NGC 6811 [PDF]

open access: yes, 2014
The NASA space telescope Kepler has provided unprecedented time-series observations which have revolutionised the field of asteroseismology, i.e. the use of stellar oscillations to probe the interior of stars.
J. Molenda–Żakowicz   +6 more
semanticscholar   +1 more source

Long-term investigation of an open cluster Berkeley 65

open access: yesFrontiers in Astronomy and Space Sciences
We present a decade-long investigation of a poorly studied cluster, Berkeley 65 (Be 65), using deep optical data from the telescopes of ARIES, Nainital Observatory.
Tarak Chand   +13 more
doaj   +1 more source

Pilot Innovative Territorial Clusters in Russia: A Sustainable Development Mode

open access: yesForesight and STI Governance, 2015
Leading countries consider regional clusters an efficient tool of interaction between actors of a regional innovation system, which enables new poles of economic growth to be formed.
Evgeniy Kutsenko
doaj   +1 more source

The Monitor Project: stellar rotation at 13 Myr - I. A photometric monitoring survey of the young open cluster h Persei [PDF]

open access: yes, 2013
We aim at constraining the angular momentum evolution of low mass stars by measuring their rotation rates when they begin to evolve freely towards the ZAMS, i.e. after the disk accretion phase has stopped. We conducted a multi-site photometric monitoring
E. Moraux   +11 more
semanticscholar   +1 more source

Sliding Guide System Concept for 3D Motion of the Hip Joint in Walking Assist Robots

open access: yesAdvanced Intelligent Systems
The human hip joint has three degrees of freedom: flexion and extension, abduction and adduction, and external rotation and internal rotation. However, most current walking assist robots only support flexion–extension of the hip joint and may restrict ...
Naoto Saito   +2 more
doaj   +1 more source

Red Clump stars in Kepler open cluster NGC 6819

open access: yesEPJ Web of Conferences, 2015
We measure the large frequency separation, Δν, and the frequency of maximum amplitude, νmax, for 10 Red Clump (RC) single member (SM) stars in the Kepler open cluster NGC 6819. We derive luminosities and masses for each individual RC star.
Abedigamba O.P.   +2 more
doaj   +1 more source

THE OPEN CLUSTER CHEMICAL ANALYSIS AND MAPPING SURVEY: LOCAL GALACTIC METALLICITY GRADIENT WITH APOGEE USING SDSS DR10 [PDF]

open access: yes, 2013
The Open Cluster Chemical Analysis and Mapping (OCCAM) survey aims to produce a comprehensive, uniform, infrared-based data set for hundreds of open clusters, and constrain key Galactic dynamical and chemical parameters from this sample.
P. Frinchaboy   +33 more
semanticscholar   +1 more source

HD 285507b: AN ECCENTRIC HOT JUPITER IN THE HYADES OPEN CLUSTER [PDF]

open access: yes, 2013
We report the discovery of the first hot Jupiter in the Hyades open cluster. HD 285507b orbits a V = 10.47 K4.5V dwarf (M* = 0.734 M☉; R* = 0.656 R☉) in a slightly eccentric () orbit with a period of days.
S. Quinn   +12 more
semanticscholar   +1 more source

Sejong Open Cluster Survey (SOS). 0. Target Selection And Data Analysis [PDF]

open access: yes, 2013
Star clusters are superb astrophysical laboratories containing cospatial and coeval samples of stars with similar chemical composition. We initiate the Sejong Open cluster Survey (SOS) - a project dedicated to providing homogeneous photometry of a large ...
H. Sung   +6 more
semanticscholar   +1 more source

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