Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Pryor, Carlton"'
This article reports a measurement of the proper motion of Leo II, a dwarf galaxy that is a likely satellite of the Milky Way, based on imaging with the Hubble Space Telescope and Wide Field Camera. 3. The measurement uses compact background galaxies
Externí odkaz:
http://hdl.handle.net/10150/624741
http://arizona.openrepository.com/arizona/handle/10150/624741
http://arizona.openrepository.com/arizona/handle/10150/624741
We have measured the proper motion of the Draco dwarf galaxy using images at two epochs with a time baseline of about two years taken with the Hubble Space Telescope and the Advanced Camera for Surveys. Wide Field Channel 1 and 2 provide two adjacent
Externí odkaz:
http://arxiv.org/abs/1407.3509
We use samples of local main-sequence stars to show that the radial gradient of [Fe/H] in the thin disk of the Milky Way decreases with mean effective stellar temperature. Many of these stars are visiting the solar neighborhood from the inner and out
Externí odkaz:
http://arxiv.org/abs/1205.7001
We extract a sample of disc stars within 200 pc of the Sun from the RAVE and SDSS surveys. Distances are estimated photometrically and proper motions are from ground-based data. We show that the velocity-space substructure first revealed in the Genev
Externí odkaz:
http://arxiv.org/abs/1102.4626
Autor:
Piatek, Slawomir, Pryor, Carlton, Bristow, Paul, Olszewski, Edward W., Harris, Hugh C., Mateo, Mario, Minniti, Dante, Tinney, Christopher G.
The measured proper motion of Fornax, expressed in the equatorial coordinate system, is $(\mu_{\alpha},\mu_{\delta})=(47.6\pm 4.6,-36.0\pm 4.1)$ mas century$^{-1}$. This proper motion is a weighted mean of four independent measurements for three dist
Externí odkaz:
http://arxiv.org/abs/astro-ph/0612705
Autor:
McLaughlin, Dean E., Anderson, Jay, Meylan, Georges, Gebhardt, Karl, Pryor, Carlton, Minniti, Dante, Phinney, Sterl
Publikováno v:
Astrophys.J.Suppl. 166 (2006) 249
We have used HST imaging of the central regions (R<100 arcsec, about 5 core radii) of the globular cluster 47 Tucanae to derive proper motions and U- and V-band magnitudes for 14,366 cluster members. We also present a catalogue of astrometry and F475
Externí odkaz:
http://arxiv.org/abs/astro-ph/0607597
Autor:
Gerssen, Joris, van der Marel, Roeland P., Gebhardt, Karl, Guhathakurta, Puragra, Peterson, Ruth, Pryor, Carlton
It has been reported that there is an error in the figure in Dull et al. (1997, D97) that shows the radial M/L profile in Fokker-Planck models of M15. We discuss how this modifies the interpretation of our kinematical data. These imply the existence
Externí odkaz:
http://arxiv.org/abs/astro-ph/0210158
Autor:
Gerssen, Joris, van der Marel, Roeland P., Gebhardt, Karl, Guhathakurta, Puragra, Peterson, Ruth, Pryor, Carlton
We analyze HST/STIS spectra (see Paper I) of the central region of the dense globular cluster M15. We infer the velocities of 64 individual stars, two-thirds of which have their velocity measured for the first time. This triples the number of stars w
Externí odkaz:
http://arxiv.org/abs/astro-ph/0209315
Publikováno v:
Astronomical Journal, 123, 2511 (2002)
This article studies the structure of the Draco dwarf spheroidal galaxy with an emphasis on the question of whether the spatial distribution of its stars has been affected by the tidal interaction with the Milky Way, using R- and V-band CCD photometr
Externí odkaz:
http://arxiv.org/abs/astro-ph/0201297
Publikováno v:
Astron.J. 121 (2001) 841
We report R- and V-band photometry derived from CCD imaging for objects in nine fields in and around the Draco dwarf spheroidal galaxy. The most distant fields are about 1.3 degrees from the center. We use these data to search for Draco stars outside
Externí odkaz:
http://arxiv.org/abs/astro-ph/0011006