English
Related papers

Related papers: The Spatially-Resolved Mass Function of the Globul…

200 papers

We use Hubble Space Telescope archival images to measure central surface brightness profiles of globular clusters around satellite galaxies of the Milky Way. We report results for 21 clusters around the LMC, 5 around the SMC, and 4 around…

Astrophysics · Physics 2009-06-23 Eva Noyola , Karl Gebhardt

A growing fraction of Simple Stellar Population (SSP) models, in an aim to create more realistic simulations capable of including stochastic variation in their outputs, begin their simulations with a distribution of discrete stars following…

Astrophysics of Galaxies · Physics 2015-06-18 Bogdan Popescu , M. M. Hanson

We present the initial results of a study of globular clusters in M31, using the Faint Object Camera (FOC) on the Hubble Space Telescope (HST). The sample of objects consists of 13 clusters spanning a range of properties. Three inde-…

We use detailed numerical simulations and theoretical estimates to show that, if confirmed, the unusually brief microlensing events observed by Sahu et al. (2001) in the field of the globular cluster M22 might be explained as a result of…

Astrophysics · Physics 2009-11-07 R. de la Fuente Marcos , C. de la Fuente Marcos

We quantify the structure of a very large number of Galactic open clusters and look for evidence of mass segregation for the most massive stars in the clusters. We characterise the structure and mass segregation ratios of 1276 clusters in…

Astrophysics of Galaxies · Physics 2017-10-30 Sami Dib , Stefan Schmeja , Richard J. Parker

Following an old idea of Fritz Zwicky, we make an attempt to establish a universal mass function for astronomical objects on all scales. The object classes considered are: solar system planets and small bodies, exoplanets, brown dwarfs,…

Astrophysics · Physics 2009-11-16 Bruno Binggeli , Tatjana Hascher

This is the first of a series of papers presenting the results from our survey of 25 Galactic globular clusters with the MUSE integral-field spectrograph. In combination with our dedicated algorithm for source deblending, MUSE provides…

We analyze post-refurbishment Hubble Space Telescope images of four globular clusters in M31. The ability to resolve stars to below the horizontal branch permits us to use star counts to extend the surface brightness profiles determined…

Extensive photometric studies of the globular clusters located towards the center of the Milky Way have been historically neglected. The presence of patchy differential reddening in front of these clusters has proven to be a significant…

We report the determination of high-accuracy radial velocities for 299 members of the globular cluster M92 using the Hydra multi-object spectrograph on the WIYN telescope. We have concentrated on stars outside of the central region of the…

Astrophysics · Physics 2008-11-26 G. A. Drukier , H. N. Cohn , P. M. Lugger , S. D. Slavin , R. C. Berrington , B. W. Murphy

We present the I-band luminosity function of the differentially reddened globular cluster M10. We combine photometric analysis derived from wide-field (23' x 23') images that include the outer regions of the cluster and high-resolution…

Astrophysics · Physics 2016-08-30 Denise L. Pollard , Eric L. Sandquist , Jonathan R. Hargis , Michael Bolte

We examine the dynamics of the stars and globular clusters in the nearby giant galaxy M87 and constrain the mass distribution, using all the available data over a large range of radii, including higher-order moments of the stellar…

Astrophysics · Physics 2009-10-31 Aaron J. Romanowsky , Christopher S. Kochanek

We present the core mass function (CMF) of the massive star-forming clump G33.92+0.11 using 1.3 mm observations obtained with the Atacama Large Millimeter/submillimeter Array (ALMA). With a resolution of 1000 au, this is one of the highest…

A low mass, large core radius, and strong tidal tails suggest that the globular cluster Palomar 5 has lost a large fraction of its initial mass over time. If the dynamical evolution of Palomar 5 has been dominated by the effects of mass…

Astrophysics · Physics 2009-11-07 Carl J. Grillmair , Graeme H. Smith

We study the process of mass segregation through 2-body relaxation in galactic nuclei with a central massive black hole (MBH). This study has bearing on a variety of astrophysical questions, from the distribution of X-ray binaries at the…

Astrophysics · Physics 2009-11-11 Marc Freitag , Pau Amaro-Seoane , Vassiliki Kalogera

The radial distribution of globular clusters in our Galaxy, M31 and M87 is studied and compared with that of halo stars. The globular cluster distributions seem significantly flatter than those of the stars bulge. Assuming this is a…

Astrophysics · Physics 2007-05-23 R. Capuzzo-Dolcetta , L. Vignola

By exploiting two ACS/HST datasets separated by a temporal baseline of ~7 years, we have determined the relative stellar proper motions (providing membership) and the absolute proper motion of the Galactic globular cluster M71. The absolute…

Solar and Stellar Astrophysics · Physics 2017-02-22 M. Cadelano , E. Dalessandro , F. R. Ferraro , P. Miocchi , B. Lanzoni , C. Pallanca , D. Massari

We present an analysis of the properties of the lensing cluster MS0440+0204 at z=0.1965. MS0440+0204 has been observed with a variety of telescopes at diverse wavelengths: from the ground with CFHT, MMT and KECK and from Earth orbit with…

Astrophysics · Physics 2009-10-30 I. M. Gioia , E. J. Shaya , O. Le Fevre , E. E. Falco , G. A. Luppino , F. Hammer

We present the stellar main sequence luminosity function (LF) of the disrupted, low-mass, low-concentration globular cluster Palomar 5 and its well-defined tidal tails, which emanate from the cluster as a result of its tidal interaction…

Astrophysics · Physics 2009-11-10 A. Koch , E. K. Grebel , M. Odenkirchen , D. Martinez-Delgado , J. A. R. Caldwell

We present observations of the stellar kinematics of the centre of the core collapsed globular cluster M15 obtained with the MUSE integral field spectrograph on the VLT operating in narrow field mode. Thanks to the use of adaptive optics,…