Results 41 to 50 of about 7,252,313 (352)
UKIRT follow-up observations of the old open cluster FSR0358 (Kirkpatrick1) [PDF]
, 2009 We aim to characterise the properties of the stellar clusters in the Milky Way. Utilising an expectation-maximisation method we determined that the cluster FSR0358, originally discovered by J.D.Kirkpatrick, is the most likely real cluster amongst the ...
Bertin +29 more
core +2 more sources
The Astrophysical Journal, 2023 We consider WIYN/Hydra spectra of 329 photometric candidate members of the 420 Myr old open cluster M48 and report lithium detections or upper limits for 234 members and likely members.
Qinghui Sun +4 more
doaj +1 more source
The highly polarized open cluster Trumpler 27 [PDF]
, 2000 We have carried out multicolor linear polarimetry (UBVRI) of the brightest stars in the area of the open cluster Trumpler 27. Our data show a high level of polarization in the stellar light with a considerable dispersion, from $P = 4%$ to $P = 9.5%$. The
Axon D. J. +12 more
core +3 more sources
A Machine-learning-based Investigation of the Open Cluster M67
Astrophysical Journal, 2018 In this paper, we use a machine-learning method, random forest (RF), to identify reliable members of the old (4 Gyr) open cluster M67 based on the high-precision astrometry and photometry taken from the second Gaia data release (Gaia-DR2).
Xinhua Gao
semanticscholar +1 more source
Characterization of open cluster remnants
, 2007 Despite progress in the theoretical knowledge of open cluster remnants and the growing search for observational identifications in recent years, open questions still remain. The methods used to analyze open cluster remnants and criteria to define them as
Bica, E., Pavani, D. B
core +1 more source
STELLAR RADIAL VELOCITIES IN THE OLD OPEN CLUSTER M67 (NGC 2682). I. MEMBERSHIPS, BINARIES, AND KINEMATICS [PDF]
, 2015 We present results from 13776 radial-velocity (RV) measurements of 1278 candidate members of the old (4 Gyr) open cluster M67 (NGC 2682). The measurements are the results of a long-term survey that includes data from seven telescopes with observations ...
A. Geller, D. Latham, R. Mathieu
semanticscholar +1 more source
SS Lac in Open Cluster NGC 7209 [PDF]
Journal of Astronomy and Space Sciences, 1997 We present IUE observations in far ultraviolet region for SS Lac in open cluster NGC 7209. The IUE short wavelength spectrum and long wavelength spectrum were merged to produce an energy distribution curve between 1200A and 3200A.
Young Woon Kang
doaj
WIYN OPEN CLUSTER STUDY. XXXII. STELLAR RADIAL VELOCITIES IN THE OLD OPEN CLUSTER NGC 188 [PDF]
, 2015 We present the results of our ongoing radial-velocity (RV) survey of the old (7 Gyr) open cluster NGC 188. Our WIYN 3.5 m data set spans a time baseline of 11 years, a magnitude range of 12 ⩽ V ⩽ 16.5 (1.18–0.94 M☉), and a 1° diameter region on the sky ...
A. Geller +3 more
semanticscholar +1 more source
Astrometric and photometric study of the open cluster NGC 2323 [PDF]
Serbian Astronomical Journal, 2017 We present a study of the open cluster NGC 2323 using astrometric and photometric data. In our study we used two methods that are able to separate open cluster’s stars from those that belong to the stellar background. Our results of calculations
Amin M.Y., Elsanhoury W.H.
doaj +1 more source
A statistical method to determine open cluster metallicities [PDF]
, 2010 The study of open cluster metallicities helps to understand the local stellar formation and evolution throughout the Milky Way. Its metallicity gradient is an important tracer for the Galactic formation in a global sense.
Andrievsky +56 more
core +1 more source