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Related papers: 47 Tuc in Rubin Data Preview 1: Exploring Early LS…

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We describe the detailed chemical abundance analysis of a high-resolution (R~35,000), integrated-light (IL), spectrum of the core of the Galactic globular cluster 47 Tuc, obtained using the du Pont echelle at Las Campanas. We develop an…

Astrophysics · Physics 2009-11-13 Andrew McWilliam , Rebecca A. Bernstein

47 Tuc was the first globular cluster observed to be $\gamma$-ray bright, with the $\gamma$-rays being attributed to a population of unresolved millisecond pulsars (MSPs). Recent kinematic data, combined with detailed simulations, appears…

High Energy Astrophysical Phenomena · Physics 2018-08-15 Anthony M. Brown , Thomas Lacroix , Sheridan Lloyd , Céline Bœhm , Paula Chadwick

This paper investigates the discrepancy between recent measurements of the density profile of the globular cluster 47 Tuc that have used HST data sets. Guhathakurta et al. (1992) used pre-refurbishment WFPC1 V-band images to derive r_c =…

Astrophysics · Physics 2010-02-18 Justin H. Howell , Puragra Guhathakurta , Ronald L. Gilliland

We present $BVI$ photometry for about 16000 stars from a 220 arcmin$^{2}$ field centered 8 arcmin east of the center of 47 Tuc. We have identified eight likely blue stragglers located in the outer parts of the cluster. Four of these objects…

Astrophysics · Physics 2007-05-23 J. Kaluzny , A. Wysocka , K. Z. Stanek , W. Krzeminski

The Vera C. Rubin Observatory's 10-Year Legacy Survey of Space and Time (LSST) is expected to produce a hundredfold increase in the number of transients we observe. However, there are insufficient spectroscopic resources to follow up on all…

Globular clusters (GCs) are excellent tracers of their host galaxies' evolutionary histories. Traditional methods for identifying GCs in galaxies rely on cuts over photometric catalogs and can yield source lists with high levels of…

Based on the width of its main sequence, and an actual observed split when viewed through particular filters, it is widely accepted that 47 Tucanae contains multiple stellar populations. In this contribution, we divide the main-sequence of…

We present deep Hubble Space Telescope optical imaging observations of two Galactic globular clusters, 47 Tuc and M15, using the Space Telescope Imaging Spectrograph (STIS) longpass (LP) filter and the Wide Field and Planetary Camera 2…

Astrophysics · Physics 2009-10-31 Mark L. Houdashelt , Rosemary F. G. Wyse , Gerard Gilmore

We predict the sensitivity of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) to faint, resolved Milky Way satellite galaxies and outer-halo star clusters. We characterize the expected sensitivity using simulated LSST…

We present the first systematic analysis of photometric redshifts (photo-z) estimated from the Rubin Observatory Data Preview 1 (DP1) data taken with the Legacy Survey of Space and Time (LSST) Commissioning Camera. Employing the Redshift…

Spectroscopic observations of binary stars in globular clusters are essential to shed light on the poorly constrained period, eccentricity, and mass ratio distributions and to develop an understanding of the formation of peculiar stellar…

Solar and Stellar Astrophysics · Physics 2025-01-15 Johanna Müller-Horn , Fabian Göttgens , Stefan Dreizler , Sebastian Kamann , Sven Martens , Sara Saracino , Claire S. Ye

The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will produce unprecedentedly deep and wide photometric catalogs, enabling transformative studies of faint stellar systems such as the research of ultra-faint dwarf…

Astrophysics of Galaxies · Physics 2026-05-06 M. Gatto , V. Ripepi , M. Bellazzini , C. Tortora , M. Dall'Ora

The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) dataset will dramatically alter our understanding of the Universe, from the origins of the Solar System to the nature of dark matter and dark energy. Much of this research…

Instrumentation and Methods for Astrophysics · Physics 2022-08-05 Katelyn Breivik , Andrew J. Connolly , K. E. Saavik Ford , Mario Jurić , Rachel Mandelbaum , Adam A. Miller , Dara Norman , Knut Olsen , William O'Mullane , Adrian Price-Whelan , Timothy Sacco , J. L. Sokoloski , Ashley Villar , Viviana Acquaviva , Tomas Ahumada , Yusra AlSayyad , Catarina S. Alves , Igor Andreoni , Timo Anguita , Henry J. Best , Federica B. Bianco , Rosaria Bonito , Andrew Bradshaw , Colin J. Burke , Andresa Rodrigues de Campos , Matteo Cantiello , Neven Caplar , Colin Orion Chandler , James Chan , Luiz Nicolaci da Costa , Shany Danieli , James R. A. Davenport , Giulio Fabbian , Joshua Fagin , Alexander Gagliano , Christa Gall , Nicolás Garavito Camargo , Eric Gawiser , Suvi Gezari , Andreja Gomboc , Alma X. Gonzalez-Morales , Matthew J. Graham , Julia Gschwend , Leanne P. Guy , Matthew J. Holman , Henry H. Hsieh , Markus Hundertmark , Dragana Ilić , Emille E. O. Ishida , Tomislav Jurkić , Arun Kannawadi , Alekzander Kosakowski , Andjelka B. Kovačević , Jeremy Kubica , François Lanusse , Ilin Lazar , W. Garrett Levine , Xiaolong Li , Jing Lu , Gerardo Juan Manuel Luna , Ashish A. Mahabal , Alex I. Malz , Yao-Yuan Mao , Ilija Medan , Joachim Moeyens , Mladen Nikolić , Robert Nikutta , Matt O'Dowd , Charlotte Olsen , Sarah Pearson , Ilhuiyolitzin Villicana Pedraza , Mark Popinchalk , Luka C. Popović , Tyler A. Pritchard , Bruno C. Quint , Viktor Radović , Fabio Ragosta , Gabriele Riccio , Alexander H. Riley , Agata Rożek , Paula Sánchez-Sáez , Luis M. Sarro , Clare Saunders , Đorđe V. Savić , Samuel Schmidt , Adam Scott , Raphael Shirley , Hayden R. Smotherman , Steven Stetzler , Kate Storey-Fisher , Rachel A. Street , David E. Trilling , Yiannis Tsapras , Sabina Ustamujic , Sjoert van Velzen , José Antonio Vázquez-Mata , Laura Venuti , Samuel Wyatt , Weixiang Yu , Ann Zabludoff

We have obtained high resolution (<1") deep x-ray images of the globular cluster 47Tucanae (NGC 104) with the Chandra X-ray Observatory to study the population of compact binaries in the high stellar density core. A 70 kilosec exposure of…

Astrophysics · Physics 2019-08-17 Jonathan E. Grindlay , Craig Heinke , Peter D. Edmonds , Stephen S. Murray

We present near infrared velocity curves for 12 long period variables (LPVs) in the globular cluster 47 Tuc (NGC 104). New light curves are also presented for these variables. Results are compared with the period-luminosity sequences…

Astrophysics · Physics 2009-11-10 T. Lebzelter , P. R. Wood , K. H. Hinkle , R. R. Joyce , F. C. Fekel

We analyze the clustering of galaxies in the first public data release of the HSC Subaru Strategic Program. Despite the relatively small footprints of the observed fields, the data are an excellent proxy for the deep photometric datasets…

Using Spitzer IRAC observations from the SAGE-SMC Legacy program and archived Spitzer IRAC data, we investigate dust production in 47 Tuc, a nearby massive Galactic globular cluster. A previous study detected infrared excess, indicative of…

Stars exhibit a bewildering variety of rapidly variable behaviors ranging from explosive magnetic flares to stochastically changing accretion to periodic pulsations or rotation. The principal Rubin Observatory Legacy Survey of Space and…

Solar and Stellar Astrophysics · Physics 2023-08-02 Eric D. Feigelson , Federica B. Bianco , Rosaria Bonito

New and archival HST images of the globular cluster systems of 17 relatively nearby galaxies and 6 more distant galaxies have been used to establish the characteristics of GC subpopulations over a range of host galaxy morphological type…

Astrophysics · Physics 2007-05-23 Jean P. Brodie

We investigate the properties of known RR Lyrae in the Vera C. Rubin Observatory Data Preview 1 (DP1) fields and compare those with the predictions based on stellar pulsation models tailored to the Legacy Survey of Space and Time (LSST)…

Solar and Stellar Astrophysics · Physics 2026-05-04 Chow-Choong Ngeow , Anupam Bhardwaj