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Browsing Articles by Subject "Astronomical photometry"
Now showing items 1-20 of 52
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(Oxford Academic, 2012-05)The parameters for the newly discovered open cluster Alessi 95 are established on the basis of available photometric and spectroscopic data, in conjunction with new observations. Colour excesses for spectroscopically ...
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Analysis of MOST light curves of five young stars in Taurus–Auriga and Lupus 3 star-forming regions (Oxford University Press, 2011-08)Continuous photometric observations of five young stars obtained by the MOST satellite in 2009 and 2010 in the Taurus and Lupus star formation regions are presented. Using light-curve modelling under the assumption of ...
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(American Astronomical Society, 2015-02-10)We report the first planet discovery from the two-wheeled Kepler (K2) mission: HIP 116454 b. The host star HIP 116454 is a bright (V = 10.1, K = 8.0) K1 dwarf with high proper motion and a parallax-based distance of 55.2 ...
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(EDP Sciences, 2008-06)Context. The identification of smaller and smaller signals from objects observed with a non-perfect instrument in a noisy environment poses a challenge for a statistically clean data analysis. Aims. We compute the probability ...
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(Oxford Academic, 2012-04)Preliminary constraints are placed on a cluster of young stellar objects (J2000 02:54:31.4 +69:20:32.5) discovered in the field of the classical Cepheid SU Cas. The Wide-field Infrared Survey Explorer (WISE) 3.4-, 4.6-, ...
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(Oxford University Press, 2016-02-01)Multicolour photometry of the stellar populations in five fields in the third Galactic quadrant centred on the clusters NGC 2215, NGC 2354, Haffner 22, Ruprecht 11, and ESO489 SC01 is interpreted in terms of a warped and ...
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(American Astronomical Society, 2015-08-20)We report on both high-precision photometry from the Microvariability and Oscillations of Stars (MOST) space telescope and ground-based spectroscopy of the triple system [delta] Ori A, consisting of a binary O9.5II+early-B ...
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Discovery of the new slowly pulsating B star HD 163830 (B5 II/III) from MOST space-based photometry (American Astronomical SocietyIOP Publishing, 2006-05-10)We report the discovery of a new slowly pulsating B star, with the largest number of detected frequencies to date by more than a factor of 3, based on 37 days of MOST (Microvariability and Oscillations of STars) satellite ...
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(American Astronomical Society, 1986-07)New photoelectric UBVphotometry is presented for stars in NGC 6087, the cluster containing the 9[d over dot]75 Cepheid S Normae. The data are used with published photoelectric observations for cluster stars to redetermine ...
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(American Astronomical Society, 1992-09)New photoelectric UBV photometry of 27 stars and spectroscopic observations of 12 stars are presented for NGC 129, the cluster containing the 8[d over dot]00 Cepheid DL Cas. The photometry is used to restandardize previously ...
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Galactic clusters with associated Cepheid variables. IV. C2128+488 (Anon. Platais) and V1726 Cygni (American Astronomical Society, 1994-05)New photoelectric UBV photometry of 32 stars, photographic UBV photometry of 120 stars, and spectroscopic observations of 8 stars are presented for C 2128+488 (Anon. Platais), the cluster associated with the 4[d over dot]237 ...
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(EDP Sciences, 2013-02)Context. Pulsations in pre-main sequence stars have been discovered several times within the last years. But nearly all of these pulsators are of [delta] Scuti-type. [gamma] Doradus-type pulsation in young stars has been ...
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(Oxford University Press, 2012-01)We report the discovery and analysis of a very strong magnetic field in the rapidly rotating early B-type star HR 5907, based on observations obtained as part of the Magnetism in Massive Stars (MiMeS) project. We infer a ...
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(American Astronomical Society, 1997-06)Photoelectric and CCD photometry (to a limit of V=17.0) is presented for 61 and 243 stars, respectively--a total of 279 individual stars--in and about IC 1590, a young galactic cluster embedded in the nebulosity of NGC ...
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(EDP Sciences, 2011-10)Context. The Kepler spacecraft is providing time series of photometric data with micromagnitude precision for hundreds of A-F type stars. Aims. We present a first general characterization of the pulsational behaviour of ...
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(American Astronomical Society, 2007-12-20)We have made a comprehensive transit search for exoplanets down to [similar or equal to]1.5-2 Earth radii in the HD 189733 system, based on 21 days of nearly uninterrupted broadband optical photometry obtained with the ...
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(EDP Sciences for European Southern Observatory, 2012-09)Context. The ESO Public Survey “VISTA Variables in the Vía Láctea” (VVV) provides deep multi-epoch infrared observations for unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims. The ...
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(EDP Sciences for European Southern Observatory, 2013-04)The new multi-epoch near-infrared VISTA Variables in the Vía Láctea (VVV) survey is sampling 562 deg[superscript 2] of the Galactic bulge and adjacent regions of the disk. Accurate astrometry established for the region ...
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Missing stellar mass in SED fitting: spatially unresolved photometry can underestimate galaxy masses (Oxford University PressRoyal Astronomical Society, 2015)We fit model spectral energy distributions (SEDs) to each pixel in 67 nearby (= 0.0057) galaxies using broad-band photometry from the Sloan Digital Sky Survey and GALEX. For each galaxy, we compare the stellar mass ...
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(Oxford University Press, 2014-06)We have used the MOST (Microvariability and Oscillations of STars) microsatellite to obtain four weeks of contiguous high-precision broad-band visual photometry of the O7.5III(n)((f)) star ξ Persei in 2011 November . ...
Now showing items 1-20 of 52