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Related papers: Galactic Structure Toward the Carina Tangent

200 papers

We present near-IR colour--magnitude diagrams and star counts for a number of regions along the Galactic plane. It is shown that along the l=27 b=0 line of sight there is a feature at 5.7 +-0.7kpc with a density of stars at least a factor…

Astrophysics · Physics 2009-10-31 P. L. Hammersley , F. Garzon , T. Mahoney , M. Lopez-Corredoira , M. A. P. Torres

The results of the complex study of galactic open cluster Trumpler 2 are presented. In order to obtain the proper motions the positions of 2600 stars up to the limit magnitude B ~ 16.25 mag in the area 80x80 arcmin around the cluster were…

Astrophysics · Physics 2009-11-11 V. N. Frolov , J. K. Ananjevskaja , E. G. Jilinski , D. L. Gorshanov

We present results from a WIYN/OPTIC photometric and astrometric survey of the field of the open cluster NGC 188 ((l,b) = (122.8\arcdeg, 22.5\arcdeg)). We combine these results with the proper-motion and photometry catalog of Platais et al.…

Astrophysics of Galaxies · Physics 2015-05-18 Dana I. Casetti-Dinescu , Terrence M. Girard , Imants Platais , William F. van Altena

The results of the study of the large-scale distribution of galaxies up to z ~0.8 in the field HS 47.5-22 on the basis of photometric data of the 1-meter Schmidt telescope of the BAO NAS Armenia are presented. The full sample contains…

Astrophysics of Galaxies · Physics 2020-10-28 Aleksandra Grokhovskaya , Sergei N. Dodonov , T. A. Movsessian

We present an analysis of the photometric parallaxes of stars in 21 BATC fields carried out with the National Astronomical Observatories (NAOC) 60/90 cm Schmidt Telescope in 15 intermediate-band filters from 3000 to 10000 {\AA}. In this…

Astrophysics · Physics 2009-11-11 Cuihua Du , Jun Ma , Zhenyu Wu , Xu Zhou

Time-series VI CCD photometry of the globular cluster M10 (NGC 6254) is employed to perform a detailed identification, inspection of their light curves, their classification and their cluster membership, of all the known variables reported…

Solar and Stellar Astrophysics · Physics 2020-10-07 A. Arellano Ferro , M. A. Yepez , S. Muneer , I. H. Bustos Fierro , K. P. Schröder , Sunetra Giridhar , J. H. Calderón

We present medium-resolution spectroscopy of a sample of stars in the second Galactic quadrant selected from the literature because their colours suggest that they are moderately-reddened early-type stars at very large distances. From the…

Astrophysics · Physics 2009-11-07 Ignacio Negueruela , Amparo Marco

We interpret published CCD UBVI data to deduce the stellar density distribution and metallicity distribution function in the region from 2-8 kpc from the Galactic Plane, and compare our results to several star count models. A feature of…

Astrophysics · Physics 2009-11-07 S. Karaali , S. G. Ak , S. Bilir , Y. Karatas , G. Gilmore

New photoelectric seven-color observations in the Vilnius system are presented for 65 stars in the region of the open cluster NGC 752. Based on individual stars with accurate photometric classifications, we determine the apparent distance…

Astrophysics · Physics 2008-11-26 S. Bartasiute , V. Deveikis , V. Straizys , A. Bogdanovicius

We report on CCD optical (B and V passbands) and near IR (J and K bands) observations in the region of the old open cluster NGC 2141. By combining the two sets of photometry (500 stars in common) we derive new estimates of the cluster…

Astrophysics · Physics 2009-11-06 G. Carraro , S. Hassan , S. Ortolani , A. Vallenari

The Galactic globular cluster system is incomplete, especially in the low latitude regions of the Galactic bulge and disk. We report the physical characterization of twelve star clusters in the Milky Way, most of which are explored here for…

We use the recently released OGLE-III catalog of 17692 fundamental mode RR Lyr (RRab) stars in the Large Magellanic Cloud (LMC) to investigate the structure of its stellar halo. We apply conservative cuts in period, amplitude and magnitude…

Astrophysics of Galaxies · Physics 2011-02-11 O. Pejcha , K. Z. Stanek

We present the first color-magnitude study for Palomar 2, a distant and heavily obscured globular cluster near the Galactic anticenter. Our (V,V-I) color-magnitude diagram (CMD), obtained with the UH8K camera at the CFHT, reaches V(lim) =…

Astrophysics · Physics 2009-10-30 W. E. Harris , P. R. Durrell , G. R. Petitpas , T. M. Webb , S. C. Woodworth

We report the discovery of three new star clusters in the halo of the Local Group dwarf irregular galaxy NGC 6822. These clusters were found in the deep images taken with the MegaPrime at the CFHT, covering a total field of 2 deg x 2 deg.…

We have used RR Lyrae and Blue HB stars as tracers of the old Galactic halo, in order to study the halo structure and the galactic rotation as a function of height above the plane. Our sample includes 40 RR Lyrae and 80 BHB stars that are…

Astrophysics · Physics 2007-05-23 T. D. Kinman , A. Bragaglia , C. Cacciari , A. Buzzoni , A. Spagna

We present evidence for a ring of stars in the plane of the Milky Way, extending at least from l = 180 deg to l = 227 deg with turnoff magnitude $g \sim 19.5$; the ring could encircle the Galaxy. We infer that the low Galactic latitude…

A new X-ray, {\it UBVR}$I_c$, and {\it JHK$s$} study of the young cluster Westerlund 2 was undertaken to resolve discrepancies tied to the cluster's distance. Existing spectroscopic observations for bright cluster members and new multi-band…

Astrophysics of Galaxies · Physics 2015-06-16 Giovanni Carraro , David Turner , D. Majaess , Gustavo Baume

We present a study on four new star clusters discovered in the halo of the intriguing dwarf irregular galaxy NGC 6822 from a wide field survey covering 3 deg x 3 deg area carried out with MegaCam at Canada-France-Hawaii Telescope (CFHT).…

Cosmology and Nongalactic Astrophysics · Physics 2011-08-15 Narae Hwang , Myung Gyoon Lee , Jong Chul Lee , Won-Kee Park , Hong Soo Park , Sang Chul Kim , Jang-Hyun Park

The Galactic Arecibo L-band Feed Array HI (GALFA-HI) survey is mapping the entire Arecibo sky at 21-cm, over a velocity range of -700 to +700 km/s (LSR), at a velocity resolution of 0.18 km/s and an angular resolution of 3.5 arcmin. The…

We estimated the scale-length of the thin disc with the J and W1 magnitudes of the most probable Red Clump (RC) stars in the Galactic plane, $-0\overset{^\circ}.5 \leq b \leq +0\overset{^\circ}.5$, in 19 equal sized fields with consecutive…

Astrophysics of Galaxies · Physics 2015-06-24 E. Yaz Gokce , S. Karaali , S. Duran , S. Bilir , A. Yalcinkaya , S. Ak , T. Ak , M. Lopez-Corredoira , A. Cabrera-Lavers