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Related papers: Galactic Structure Toward the Carina Tangent

200 papers

We present a study of the luminosity density distribution of the Galactic bar using number counts of red clump giants (RCGs) from the OGLE-III survey. The data were recently published by Nataf et al. (2013) for 9019 fields towards the bulge…

Astrophysics of Galaxies · Physics 2013-09-24 Liang Cao , Shude Mao , David Nataf , Nicholas J. Rattenbury , Andrew Gould

We investigate the nature of 48 low-level stellar overdensities (from Froebrich, Scholz, and Raftery catalogue - FSR07) projected towards the Galactic anticentre and derive fundamental parameters for the confirmed clusters, thus improving…

Astrophysics of Galaxies · Physics 2012-05-09 Denilso Camargo , Charles Bonatto , Eduardo Bica

To progress in galactic studies based on open clusters, e.g. cluster formation rate or kinematical properties, one needs to improve the number of open clusters observed. However, only half of the 1700 known galactic open clusters have been…

Astrophysics · Physics 2009-11-11 M. Netopil , H. M. Maitzen , E. Paunzen , A. Claret

We present new isochrone fits to colour-magnitude diagrams of the Galactic globular clusters NGC\,288, NGC\,362, and NGC\,6218 (M12). We utilize a lot of photometric bands from the ultraviolet to mid-infrared by use of data from the {\it…

We have used a star-count algorithm based the Panoramic Survey Telescope And Rapid Response System 3$\pi$ survey data aim to identify and characterize uncharted open clusters (OCs). With limiting magnitudes of about 22 mag in \gps, \rps,…

Astrophysics of Galaxies · Physics 2013-09-04 C. C. Lin , W. P. Chen

The distance dependence of interstellar extinction in the direction of the Aquila Rift is investigated using 473 stars observed in the Vilnius photometric system. Front edge of the dark clouds in the area is found to be at 225$\pm$55 pc and…

Astrophysics · Physics 2009-11-07 V. Straizys , K. Cernis , S. Bartasiute

We present UBVI photometry for about 60,000 stars in a region of 44'x33' centered on the Galactic globular cluster (GGC) NGC 2808. The central region has been mapped with the HST WFPC2 camera. We cover a field which extends from the center…

Astrophysics · Physics 2007-05-23 L. R. Bedin , G. Piotto , M. Zoccali , P. B. Stetson , I. Saviane , S. Cassisi , G. Bono

We have developed a star-counting algorithm and tested it on the 2MASS star catalog to search for density enhancements significantly above the field in Galactic latitude $|b|<50^{\circ}$. Nearly 500 open clusters are "rediscovered", along…

Solar and Stellar Astrophysics · Physics 2012-02-21 C. C. Lin , W. P. Chen , E. A. Magnier

We present results of the second planetary and low-luminosity object transit campaign conducted by the OGLE-III survey. Three fields (35'x35' each) located in the Carina regions of the Galactic disk (l~290) were monitored continuously in…

We report on $UBVI$ photometry and spectroscopy for MK classification purposes carried out in the fields of five open clusters projected against the Vela Gum in the Third Galactic Quadrant of the Galaxy. They are Ruprecht 20, Ruprecht 47,…

Astrophysics of Galaxies · Physics 2015-06-03 E. E. Giorgi , G. R. Solivella , G. I. Perren , R. A. Vázquez

Based on an almost complete sample of Galactic open star clusters within 1.8 kpc, we perform a comprehensive statistical analysis of various cluster parameters like spatial position, age, size, mass and extinction in order to understand the…

Astrophysics of Galaxies · Physics 2016-10-18 Yogesh C. Joshi , Andrei Dambis , Anil K. Pandey , Santosh Joshi

We identify a group of ~20 co-moving, mostly southern hemisphere, ~200 Myr old stars near Earth. Of the stars likely to be members of this Carina-Near Moving Group, in either its nucleus (~30 pc from Earth) or surrounding stream, all but 3…

Astrophysics · Physics 2011-02-11 B. Zuckerman , M. S. Bessell , Inseok Song , S. Kim

We have conducted a deep photometric survey of a 0.5 deg x 0.5 deg area of the Galactic Plane using the WFI instrument on the 2.2-m ESO telescope on La Silla, Chile. The dataset comprises a total of 267 R-band images, 204 from a 16 day…

Solar and Stellar Astrophysics · Physics 2015-05-19 V. R. Miller , M. D. Albrow , C. Afonso , Th. Henning

We performed the astrometry of H2O masers in the Galactic star-forming region G48.61+0.02 with the VLBI Exploration of Radio Astrometry (VERA). We derived a trigonometric parallax of 199+/-7 micro as, which corresponds to a distance of…

Red clump giant stars can be used as distance indicators to trace the mass distribution of the Galactic bar. We use RCG stars from 44 bulge fields from the OGLE-II microlensing collaboration database to constrain analytic tri-axial models…

Astrophysics · Physics 2009-06-23 Nicholas J. Rattenbury , Shude Mao , Takahiro Sumi , Martin C. Smith

We analyse a sample of over 1000 stars from 32 fields imaged in the V and I bands with the Wide Field and Planetary Camera, on board of the Hubble Space Telescope. The fields are located at Galactic latitudes | b | >= 15deg and in various…

Astrophysics · Physics 2009-11-06 L. O. Kerber , S. C. Javiel , B. X. Santiago

We present the first $BVI$ CCD photometry to $V=22.0$ of 4 fields centered on the region of the southern Galactic star clusters Ruprecht~61, Czernik~32, NGC 2225 and NGC 2262 and of 4 displaced control fields. These clusters were never…

Astrophysics · Physics 2009-11-13 G. Carraro , G. Baume , R. Vazquez , A. Moitinho , D. Geisler

CCD photometry on the intermediate-band uvbyCaHbeta system is presented for the metal-deficient open cluster, NGC 2243. Restricting the data to probable single members of the cluster using the CMD and the photometric indices alone generates…

Astrophysics · Physics 2009-11-10 B. J. Anthony-Twarog , J. Atwell , B. A. Twarog

We have measured structural parameters and radial color profiles of 108 ultra-diffuse galaxies (UDGs), carefully selected from six distant massive galaxy clusters in the Hubble Frontier Fields (HFF) in redshift range from 0.308 to 0.545.…

Astrophysics of Galaxies · Physics 2023-11-01 Pinsong Zhao , Fengshan Liu , Qifan Cui , Hassen M. Yesuf , Hong Wu

This project is a massive near-infrared (NIR) search for variable stars in highly reddened and obscured open cluster (OC) fields projected on regions of the Galactic bulge and disk. The search is performed using photometric NIR data in the…