English
Related papers

Related papers: A 22 Degree Tidal Tail for Palomar 5

200 papers

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 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 an implementation of the matched-filter technique to detect tidal tails of globular clusters. The method was tested using SDSS data for the globular cluster Palomar 5 revealing its well known tidal tails. We also ran a simulation…

Astrophysics of Galaxies · Physics 2015-05-28 Eduardo Balbinot , Basílio X. Santiago , Luiz N. da Costa , Martin Makler , Marcio A. G. Maia

By means of direct N-body simulations and simplified numerical models, we study the formation and characteristics of the tidal tails around Palomar 5, along its orbit in the Milky Way potential. Unlike previous findings, we are able to…

Astrophysics of Galaxies · Physics 2015-06-11 Alessandra Mastrobuono-Battisti , Paola Di Matteo , Marco Montuori , Misha Haywood

Tidal streams of globular clusters are ideal tracers of the Galactic gravitational potential. Compared to the few known, complex and diffuse dwarf-galaxy streams, they are kinematically cold, have thin morphologies and are abundant in the…

Astrophysics of Galaxies · Physics 2016-09-07 A. H. W. Küpper , E. Balbinot , A. Bonaca , K. V. Johnston , D. W. Hogg , P. Kroupa , B. X. Santiago

In this paper we report a study (see Mastrobuono-Battisti et al., 2012) about the formation and characteristics of the tidal tails around Palomar 5 along its orbit in the Milky Way potential, by means of direct N-body simulations and…

Astrophysics of Galaxies · Physics 2013-04-25 Alessandra Mastrobuono-Battisti , Paola Di Matteo , Marco Montuori , Misha Haywood

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

Pal 5 is a low mass, low velocity dispersion, globular cluster with spectacular tidal tails. We use the SDSS DR8 data to extend the density measurements of the trailing star stream to 23 degrees distance from the cluster, at which point the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 R. G. Carlberg , C. J. Grillmair , Nathan Hetherington

Recent Pan-STARRS data show that the leading arm from the globular cluster Palomar 5 (Pal 5) appears shorter than the trailing arm, while simulations of Pal 5 predict similar angular extents. We demonstrate that including the spinning…

Astrophysics of Galaxies · Physics 2017-11-01 Sarah Pearson , Adrian M. Price-Whelan , Kathryn V. Johnston

We present Subaru/FOCAS and Keck/DEIMOS medium-resolution spectroscopy of a tidally disrupting Milky Way (MW) globular cluster Palomar 5 and its tidal stream. The observed fields are located to cover an angular extent of $\sim 17$\arcdeg…

Astrophysics of Galaxies · Physics 2016-06-08 Miho N. Ishigaki , Narae Hwang , Masashi Chiba , Wako Aoki

We present two spectroscopic surveys of the tidal stellar stream of the Palomar 5 globular cluster, undertaken with the VLT/FLAMES and AAT/AAOmega instruments. We use these data in conjunction with photometric data presented in the previous…

Astrophysics of Galaxies · Physics 2017-08-30 Rodrigo A. Ibata , Geraint F. Lewis , Guillaume Thomas , Nicolas F. Martin , Scott Chapman

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

We present the results of detailed N-body simulations of clusters moving in a realistic Milky Way (MW) potential. The strong interaction with the bulge and the disk of the Galaxy leads to the formation of tidal tails, emanating from…

Astrophysics · Physics 2011-02-11 M. Montuori , R. Capuzzo-Dolcetta , P. Di Matteo , A. Lepinette , P. Miocchi

We discuss recent observational and numerical work on tidal tails in globular clusters. Evidence of tidal tails has now been found in 16 Galactic globulars and 4 globulars in M31. Simulations indicate that mapping of these tidal tails over…

Astrophysics · Physics 2007-05-23 Carl J. Grillmair

We describe a technique that finds orbits through the Galaxy that are consistent with measurements of a tidal stream, taking into account the extent that tidal streams do not precisely delineate orbits. We show that if accurate…

Astrophysics of Galaxies · Physics 2010-03-01 Andy Eyre , James Binney

We utilize the DESI Legacy Imaging Surveys DR10 to investigate the previously undetected faint extension of the Palomar 5 stellar stream. By applying the HDBSCAN clustering algorithm, we identify stream members and successfully extend the…

Astrophysics of Galaxies · Physics 2025-04-15 Yun-Ao Xiao , Hu Zou , Lu Feng , Wei-Jian Guo , Niu Li , Wen-Xiong Li , Shu-Fei Liu , Gaurav Singh , Ji-Peng Sui , Jia-Li Wang , Sui-Jian Xue

I analyse the projected density distribution of member stars over a wide area surrounding 18 Galactic globular clusters using the photometric and astrometric information provided by the second data release of the Gaia mission. A 5D mixture…

Astrophysics of Galaxies · Physics 2020-05-27 A. Sollima

The globular cluster Palomar 5 (Pal 5) is in the process of being tidally shredded as it orbits the Milky Way. Its core is currently at a heliocentric distance of ~21 kpc, near apogalacticon (~18 kpc), and it reaches ~5-7 kpc at…

We present 2-degree field spectroscopic observations of a sample of 96 A-type stars selected from the Sloan Digital Sky Survey Data Release 3 (SDSS DR3). Our aim is to identify blue horizontal branch (BHB) stars in order to measure the…

Astrophysics · Physics 2009-11-11 L. Clewley , Matt J. Jarvis

We present the main sequence luminosity function of the tidally disrupted globular cluster Palomar 5 and its tidal tails. For this work we analyzed imaging data obtained with the Wide Field Camera at the INT (La Palma) and data from the…

Astrophysics · Physics 2007-05-23 A. Koch , M. Odenkirchen , E. K. Grebel , D. Martinez-Delgado , J. A. R. Caldwell