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Using wide-field photometric data from the Sloan Digital Sky Survey (SDSS) we recently showed that the Galactic globular cluster Palomar 5 is in the process of being tidally disrupted. Its tidal tails were initially detected in a 2.5 degree…

In the last decade, observational studies have shown the existence of tidal streams in the outer part of many galactic globular clusters. The most striking examples of clusters with well defined tidal tails are represented by Palomar 5 and…

Astrophysics · Physics 2007-05-23 P. Di Matteo , R. Capuzzo Dolcetta , P. Miocchi , M. Montuori

We detected extended, curved stellar tidal tails emanating from the sparse, disrupting halo globular cluster Pal 5, which cover 10 degrees on the sky. These streams allow us to infer the orbit of Pal 5 and to ultimately constrain the…

Stars that escape globular clusters form tidal tails that are predominantly shaped by the global distribution of mass in the Galaxy, but also preserve a historical record of small-scale perturbations. Using deep $grz$ photometry from…

Sloan Digital Sky Survey data for the field of the globular cluster Pal 5 reveal the existence of a long massive stream of tidal debris spanning an arc of 10 degrees on the sky. Pal 5 thus provides an outstanding example for tidal…

Astrophysics · Physics 2007-05-23 M. Odenkirchen , E. K. Grebel , W. Dehnen , H. -W. Rix , C. M. Rockosi , H. Newberg , B. Yanny

Using Data Release 4 of the Sloan Digital Sky Survey, we have applied an optimal contrast, matched filter technique to trace the trailing tidal tail of the globular cluster Palomar 5 to a distance of 18.5 degrees from the center of the…

Astrophysics · Physics 2009-11-11 C. J. Grillmair , O. Dionatos

We report the detection of a pair of degree-long tidal tails associated with the globular cluster Palomar 14, using images obtained at the CFHT. We reveal a power-law departure from a King profile at large distances to the cluster center.…

Astrophysics of Galaxies · Physics 2015-05-20 A. Sollima , D. Martinez-Delgado , D. Valls-Gabaud , J. Penarrubia

We report the discovery of tidal tails around the high-latitude Galactic globular cluster NGC 5466 in Sloan Digital Sky Survey (SDSS) data. Neural networks are used to reconstruct the probability distribution of cluster stars in u,g,r,i and…

Astrophysics · Physics 2009-11-11 V. Belokurov , N. W. Evans , M. J. Irwin , P. C. Hewett , M. I. Wilkinson

The Sixth Data Release (DR6) in the Sloan Digital Sky Survey (SDSS) provides more photometric regions, new features and more accurate data around globular cluster Palomar 5. A new method, Back Propagation Neural Network (BPNN), is used to…

Instrumentation and Methods for Astrophysics · Physics 2011-05-19 H. Zou , Z. -Y. Wu , J. Ma , X. Zhou

The dynamical evolution of a single globular cluster and also of the entire Galactic globular cluster system has been studied theoretically in detail. In particular, simulations show how the 'lost' stars are distributed in tidal tails…

Astrophysics of Galaxies · Physics 2015-05-19 Katrin Jordi , Eva K. Grebel

In this paper we present the results of a search for members of the globular cluster Palomar 5 and its associated tidal tails. The analysis has been performed using intermediate and low resolution spectroscopy with the AAOmega spectrograph…

Astrophysics of Galaxies · Physics 2015-06-23 Pete Kuzma , Gary Da Costa , Stefan Keller , Elizabeth Maunder

Palomar 5 is one of the sparsest star clusters in the Galactic halo and is best-known for its spectacular tidal tails, spanning over 20 degrees across the sky. With N-body simulations we show that both distinguishing features can result…

Astrophysics of Galaxies · Physics 2021-07-06 Mark Gieles , Denis Erkal , Fabio Antonini , Eduardo Balbinot , Jorge Peñarrubia

We report the discovery of tidal tails around the two outer halo globular clusters, Eridanus and Palomar 15, based on $gi$-band images obtained with DECam at the CTIO 4-m Blanco Telescope. The tidal tails are among the most remote stellar…

Astrophysics of Galaxies · Physics 2018-01-25 G. C. Myeong , Helmut Jerjen , Dougal Mackey , Gary S. Da Costa

Using the Optimal Filter Technique applied to Sloan Digital Sky Survey photometry, we have found extended tails stretching about 1 degree (or several tens of half-light radii) from either side of the ultra-faint globular cluster Palomar 1.…

Astrophysics of Galaxies · Physics 2015-05-19 M. Niederste-Ostholt , V. Belokurov , N. W. Evans , S. Koposov , M. Gieles , M. J. Irwin

We report the discovery of tidal tails around the Galactic globular cluster NGC 7492, based on the Data Release 1 of the Pan-STARRS 1 survey. The tails were detected with a version of the matched filter technique applied to the $(g-r,r)$…

Astrophysics of Galaxies · Physics 2017-05-31 Camila Navarrete , Vasily Belokurov , Sergey E. Koposov

The tidal tails of Palomar 5 (Pal 5) have been the focus of many spectroscopic studies in an attempt to identify individual stars lying along the stream and characterise their kinematics. The well-studied trailing tail has been explored out…

We use photometry from the DECam Legacy Survey to detect candidate tidal tails extending ~5 deg on either side of the Palomar 13 globular cluster. The tails are aligned with the proper motion of Palomar 13 and are consistent with its old,…

Astrophysics of Galaxies · Physics 2020-11-11 Nora Shipp , Adrian Price-Whelan , Kiyan Tavangar , Cecilia Mateu , Alex Drlica-Wagner

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

Large-field multi-color images of 20 galactic globular clusters are used to investigate the presence of tidal tails around these stellar systems. Field and cluster stars are sorted with the help of color-magnitude diagrams, and star-count…

Astrophysics · Physics 2007-05-23 S. Leon , G. Meylan , F. Combes

We present the results of a detailed search for members of the Pal 5 tidal tail system in Gaia Data Release 2 (DR2). Tidal tails provide a sensitive method for measuring the current and past gravitational potential of their host galaxy as…

Astrophysics of Galaxies · Physics 2020-03-04 Nathaniel Starkman , Jo Bovy , Jeremy Webb
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