Browsing by Author "Carraro, Giovanni"
Now showing items 1-20 of 32
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Basic parameters of three star clusters in the Small Magellanic Cloud: Kron 11, Kron 63 and NGC 121 (BLACKWELL, 2008-11-11)We present observations for three star clusters, Kron 11, Kron 63 and NGC 121, in the Small Magellanic Cloud. We have studied their structure and derived their fundamental parameters by means of their luminosity functions, ...
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(2010)We present optical and infrared photometry for VdB-Hagen 67, an overlooked old open cluster located at l = 273.◦76, b = −0.◦375 (RA 09h26m45s, Dec.−51◦16 00 , J2000.0) in the fourth Galactic quadrant, in the direction ...
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(EDP Science, 2008)Context. It is widely accepted that the large obliquity of Uranus is the result of a great tangential collision (GC) with an Earth size proto-planet at the end of the accretion process. The impulse imparted by the GC had ...
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(2007)The colour–magnitude diagram (CMD) of the intermediate-age Large Magellanic Cloud star cluster NGC 2154 and its adjacent field has been analysed using Padova stellar models to determine the cluster’s fundamental parameters ...
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(BLACKWELL, 2006-09-21)In this paper, we present the first BV I CCD photometry of six overlooked old open clusters (Berkeley 44, NGC 6827, Berkeley 52, Berkeley 56, Skiff 1 and Berkeley 5) and derive estimates of their fundamental parameters by ...
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(Elsevier, 2010)We present homogeneous V, I CCD photometry of nine stellar fields in the two inner quadrants of the Galactic plane. The lines-of-view to most of these fields aim in the direction of the very inner Galaxy, where the ...
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(EDP Sciences, 2015)Context. The spiral structure of the Milky Way (MW) is highly uncertain and is the subject of much discussion nowadays. Even the spiral structure close to the Sun and the real nature of the so-called Local or Orion arm are ...
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(Universidad de ChilePrograma Cybertesis, 2009)
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(IOP PUBLISHING LTD, 2012-05-20)We estimated the dynamical surface mass density Sigma at the solar position between Z = 1.5 and 4 kpc from the Galactic plane, as inferred from the kinematics of thick disk stars. The formulation is exact within the limit ...
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(ESO, 2010)Context. Open clusters are excellent tracers of the structure, kinematics, and chemical evolution of the disk and a wealth of information can be derived from the spectra of their constituent stars. Aims. We investigate ...
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New candidate EHB stars in the open cluster NGC 6791: Looking locally into the UV-upturn phenomenon (INST THEORETICAL PHYSICS ASTRONOMY, 2006)Relying on U and B imagery at the Italian Telescopic, Nazionale Galileo (TNG), we report here the discovery of a sample of 13 new UV-bright post-HB candidate stars in the field of the Galactic open cluster NGC 6791. Owing ...
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(Oxford University Press on behalf of the Royal Astronomical Society, 2013)If stars form in clusters but most stars belong to the field, understanding the details of the transition from the former to the latter is imperative to explain the observational properties of the field. Aging open ...
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NGC 2401: a template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant (BLACKWELL PUBLISHING, 2006-04-21)Based on a deep optical CCD [UBV(RI)(C)] photometric survey and on the Two-Micron All Sky Survey (2MASS) data, we derived the main parameters of the open cluster NGC 2401. We found that this cluster is placed at 6.3 +/- ...
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(2005)We report on VI charge-coupled device photometry of two fields centred in the region of the open clusters NGC 6404 and 6583 down to V = 22.0. So far these clusters have never been studied, and we provide for the first time ...
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(UNIV CHICAGO PRESS, 2006-06-01)We report on high-resolution echelle spectroscopy of 20 giant stars in the Galactic old open cluster NGC 6791, obtained with Hydra at the WIYN telescope. High-precision radial velocity allows us to isolate 15 bona fide ...
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(2007)Context. Observations indicate that present-day star formation in the Milky Way disk takes place in stellar ensembles or clusters rather than in isolation. Bound, long-lived stellar groups are known as open clusters. They ...
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(BLACKWELL, 2008-05-21)We report on a new, wide-field (20 x 20 arcmin(2)), multicolour (U BV I), photometric campaign in the area of the nearby old open cluster NGC 2112. At the same time, we provide medium-resolution spectroscopy of 35 (and ...
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(EDP Sciences, 2015)Context. In 2012, we applied a three-dimensional formulation to kinematic measurements of the Galactic thick disk and derived a surprisingly low dark matter density at the solar position. This result was challenged by Bovy ...
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(EDP SCIENCES, 2006-01)We analyse CCD broad band (UBV(RI)(C)) photometric data obtained in the fields of the poorly studied open clusters NGC 2425 and NGC 2635. Both clusters are found to be of intermediate age thus increasing the population of ...
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(BLACKWELL, 2006-05-21)CCD BVI photometry is presented for seven previously unstudied star clusters projected towards the inner side of the Galaxy: Trumpler 23, Lynga 3, Collinder 307, Ruprecht 134, ESO552SC16, AL 5 and Kronberger 3. Colour-magnitude ...
