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相关论文: A proper motion study of the globular cluster M10

200 篇论文

Proper motion studies of stars in the centre of the Milky Way have been typically limited to the Arches and Quintuplet clusters and to the central parsec. Here, we present the first results of a large-scale proper motion study of stars…

We have measured the absolute proper motions of globular clusters NGC 2808, 3201, 4372, 4833, 5927 and 5986. The proper motions are on the Hipparcos system and they are the first determinations ever made for these low Galactic latitude…

天体物理学 · 物理学 2009-06-23 D. I. Casetti-Dinescu , T. M. Girard , D. Herrera , W. F. van Altena , C. E. López , D. J. Castillo

In this paper, we analyze 10 globular clusters in order to measure their rotational properties by using high precision radial velocity data from the SDSS-IV APOGEE-2 survey. Out of the 10 clusters we were able to successfully measure the…

We have measured the absolute proper motions of four low-latitude, inner-Galaxy globular clusters. These clusters are: NGC 6266 (M62), NGC 6304, NGC 6316 and NGC 6723. The proper motions are on the Hipparcos system, as no background…

天体物理学 · 物理学 2009-11-07 Dana I. Dinescu , Terrence M. Girard , William F. van Altena , Carlos Lopez

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…

太阳与恒星天体物理 · 物理学 2020-10-07 A. Arellano Ferro , M. A. Yepez , S. Muneer , I. H. Bustos Fierro , K. P. Schröder , Sunetra Giridhar , J. H. Calderón

We computed proper motions of a selected sample of globular clusters projected on the central bulge, employing CCD images gathered along the last 25 years at the ESO-NTT, ESO-Danish and HST telescopes. We presented a method to derive their…

星系天体物理 · 物理学 2015-05-27 L. J. Rossi , S. Ortolani , B. Barbuy , E. Bica , A. Bonfanti

We use Gaia Data Release 2 to determine the mean proper motions for 150 Milky Way globular clusters (almost the entire known population), with a typical uncertainty of 0.05 mas/yr limited mainly by systematic errors. Combining them with…

星系天体物理 · 物理学 2019-01-23 Eugene Vasiliev

With a high value of heliocentric radial velocity, a retrograde orbit, and being suspected to have an extragalactic origin, NGC 3201 is an interesting globular cluster for kinematical studies. Our purpose is to calculate the relative proper…

太阳与恒星天体物理 · 物理学 2017-03-08 Devesh P. Sariya , Ing-Guey Jiang , R. K. S. Yadav

Aims. This is the second in a series of papers that attempt to unveil the kinematic structure of the Galactic bulge through studying radial velocities and proper motions. We report here ~15000 new proper motions for three low…

星系天体物理 · 物理学 2015-06-19 Mario Soto , Hugo Zeballos , Konrad Kuijken , R. Michael Rich , Andrea Kunder , Tri Astraatmadja

Aims: for the first time the astrometric capabilities of the Multi-Conjugate Adaptive Optics (MCAO) facility GeMS with the GSAOI camera on Gemini-South are tested to quantify the accuracy in determining stellar proper motions in the…

太阳与恒星天体物理 · 物理学 2016-10-26 D. Massari , G. Fiorentino , A. McConnachie , A. Bellini , E. Tolstoy , P. Turri , D. Andersen , G. Bono , P. B. Stetson , J. -P. Véran

We have measured the proper motion of the Local Group galaxy IC 10 with the Very Long Baseline Array by measuring the position of an H2O maser relative to two background quasars over 4.3 years. After correction for the rotation of the Milky…

天体物理学 · 物理学 2009-11-11 A. Brunthaler , M. J. Reid , H. Falcke , C. Henkel , K. M. Menten

We analyze data from the Hubble Space Telescope's Advanced Camera for Surveys of the globular cluster Omega Cen. We construct a photometric and proper-motion catalog using the GO-9442, GO-10252, and GO-10775 data sets. The 2.5- to 4-year…

星系天体物理 · 物理学 2010-02-01 Jay Anderson , Roeland P. van der Marel

We present the first proper motion measurements for the galaxy M31. We obtained new V-band imaging data with the HST ACS/WFC and WFC3/UVIS of a spheroid field near the minor axis, an outer disk field along the major axis, and a field on the…

星系天体物理 · 物理学 2012-10-22 Sangmo Tony Sohn , Jay Anderson , Roeland P. van der Marel

In this paper we present a new, accurate determination of the three components of the absolute space velocity of the Galactic globular cluster NGC6397 (l 338d, b -12d). We used three HST/WFPC2 fields with multi-epoch observations to obtain…

天体物理学 · 物理学 2009-11-11 A. Milone , S. Villanova , L. R. Bedin , G. Piotto , G. Carraro , J. Anderson , I. R. King , S. Zaggia , .

We present a proper motion study of the distant globular cluster NGC 7006 based on the measurement of 25 photographic plates spanning a 40-year interval. The absolute proper motion determined with respect to extragalactic objects is (-0.96,…

天体物理学 · 物理学 2008-11-26 D. I. Dinescu , S. R. Majewski , T. M. Girard , K. M. Cudworth

Omega Centauri ($\omega$ Cen) is the most massive globular cluster of the Milky Way. It is thought to be the nucleus of an accreted dwarf galaxy because of its high mass and its complex stellar populations. To decipher its formation history…

We measure the absolute proper motion of Leo I using a WFPC2/HST data set that spans up to 10 years, to date the longest time baseline utilized for this satellite. The measurement relies on ~ 2300 Leo I stars located near the center of…

We report the first results from deep ACS imaging of ten classical globular clusters in the far outer regions (15 < R_p < 100 kpc) of M31. Eight of the clusters, including two of the most remote M31 globular clusters presently known, are…

天体物理学 · 物理学 2009-11-11 A. D. Mackey , A. Huxor , A. M. N. Ferguson , N. R. Tanvir , M. Irwin , R. Ibata , T. Bridges , R. A. Johnson , G. Lewis

We present mean proper motions and membership probabilities of individual stars for optically visible open clusters, which have been determined using data from the UCAC5 catalog. This follows our previous studies with the UCAC2 and UCAC4…

太阳与恒星天体物理 · 物理学 2018-06-13 W. S. Dias , H. Monteiro , M. Assafin

The photometry data base of the second phase of the OGLE microlensing experiment, OGLE-II, is a rich source of information about the kinematics and structure of the Galaxy. In this work we use the OGLE-II proper motion catalogue to identify…

天体物理学 · 物理学 2009-11-13 Nicholas J. Rattenbury , Shude Mao