THE ACS SURVEY OF GLOBULAR CLUSTERS. V. GENERATING A COMPREHENSIVE STAR CATALOG FOR EACH CLUSTER

By Jay Anderson, A. Sarajedini, L. Bedin, I. King, G. Piotto, I. N. Reid, M. Siegel, S. Majewski, N. Paust, A. Aparicio and 3 more. 2008

328 citations recorded by the source corpus.

The ACS Survey of Globular Clusters has used Hubble Space Telescope's Wide-Field Channel to obtain uniform imaging of 65 of the nearest globular clusters to provide an extensive homogeneous data set for a broad range of scientific investigations. The survey goals required not only a uniform observing strategy, but also a uniform reduction strategy. To this end, we designed a sophisticated software program to process the cluster data in an automated way. The program identifies stars simultaneously in the multiple dithered exposures for each cluster and measures them using the best available point-spread function models. We describe here in detail the program's rationale, algorithms, and output. The routine was also designed to perform artificial-star tests, and we ran a standard set of ∼105 tests for each cluster in the survey. The catalog described here will be exploited in a number of upcoming papers and will eventually be made available to the public via the World Wide Web.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/90553584859b1c18bd14ddf037c1cce81dff8b69

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In Astronomy and Astrophysics

1. Jay Anderson
2. G. Piotto
3. A. Milone
4. L. Bedin
5. F. D’Antona
6. A. Bragaglia
7. R. Gratton
8. E. Carretta

In Atomic and Molecular Physics, and Optics

1. Jay Anderson
2. L. Bedin
3. G. Piotto
4. Motohide Tamura
5. Santi Cassisi
6. S. Majewski
7. Ivan R. King
8. M. Zoccali

In Instrumentation

1. Jay Anderson
2. F. D’Antona
3. G. Piotto
4. R. Gratton
5. A. Milone
6. E. Carretta
7. L. Bedin
8. A. Bragaglia

Citations in the corpus

• The ACS survey of Galactic globular clusters. XII. Photometric binaries along the main sequence (2011, methodology): “In addition to these spreads, small unmodelable PSF variations, mainly due to focus changes, can introduce slight shifts in the photometric zero point as a function of the star location in the chip (see Anderson et al. 2008 for details).”
• A stellar census in globular clusters with MUSE: multiple populations chemistry in NGC 2808 (2019, methodology): “For NGC 2808, we used the HST data from the Advanced Camera for Surveys (ACS) of Galactic globular clusters (Sarajedini et al. 2007; Anderson et al. 2008).”
• IMPROVING GALACTIC CENTER ASTROMETRY BY REDUCING THE EFFECTS OF GEOMETRIC DISTORTION (2010, methodology): “The details of the observations and data reduction can be found in Anderson et al. (2008), and the catalog of positions were provided in advance of publication by J. Anderson.”
• A detached stellar-mass black hole candidate in the globular cluster NGC 3201 (2018, background): “Figure 1 shows the target star (red crosshairs) with a magnitude of IF814W = 16.87 mag (Vega) and its nearby stars from HST ACS data (Anderson et al. 2008).”
• Multiple stellar populations in Magellanic Cloud clusters - I. An ordinary feature for intermediate age globulars in the LMC? (2008, methodology): “…, qmF555W , and qmF814W ; what Anderson et al. 2008 define as quality fit); – the ratio between the estimated flux of the star in a 0.5 arcsec aperture, and the flux from neighbouring stars within the same aperture (omF435W , omF555W , and omF814W , again see Anderson et al. 2008, for details).”
• THE ACS SURVEY OF GALACTIC GLOBULAR CLUSTERS. IX. HORIZONTAL BRANCH MORPHOLOGY AND THE SECOND PARAMETER PHENOMENON (2009, methodology): “Following Lee (1991), Dotter (2008) showed that a simple relationship between global metallicity and average RGB mass loss, along with stochastic variations, can reproduce the general trend observed in old, roughly coeval Galactic GCs in the HB morphology–metallicity diagram.”
• THE HUBBLE SPACE TELESCOPE UV LEGACY SURVEY OF GALACTIC GLOBULAR CLUSTERS. I. OVERVIEW OF THE PROJECT AND DETECTION OF MULTIPLE STELLAR POPULATIONS (2014, methodology): “The F814W photometry comes from Anderson et al. (2008) and is based on GO-10775 data.”
• The Hubble Space TelescopeUV Legacy Survey of Galactic Globular Clusters – V. Constraints on formation scenarios (2015, background): “…3 (WFC3) on boardHST c© 0000 RAS (Piotto et al. 2015, hereafter Paper I ), which complements the existing F606W and F814W photometry from the Advanced Camera for Survey, or ACS (Sarajedini et al. 2007; Anderson et al. 2008) and is specifically designed to map multiple stellar populations in GCs.”
• The Hubble Space Telescope UV Legacy Survey of Galactic globular clusters – IX. The Atlas of multiple stellar populations (2016, methodology): “Stellar proper motions have been obtained as in Anderson & King (2003) and Piotto et al. (2012) by comparing the average stellar positions derived from the WFC3 images in the F336W and F438W bands with those from the catalogs by Anderson et al. (2008).”
• Vvv dr1: the first data release of the milky way bulge and southern plane from the near-infrared eso public survey vista variables in the via lactea (2011, methodology): “Based on the AS experiments of the “ACS Globular Cluster Survey” (Sarajedini et al. 2007; Anderson et al. 2008) we first allowed a 0.75 mag offset between input and output magnitude, which we finally reduced to 0.5 mag.”
• A New Distortion Solution for NIRC2 on the Keck II Telescope (2016, methodology): “These observations were part of the ACS Survey of Globular Clusters (GO-10775, PI: A. Sarajedini) and previously published in Anderson et al. (2008).”
• THE ACS SURVEY OF GALACTIC GLOBULAR CLUSTERS. VII. RELATIVE AGES (2008, methodology): “…present an analysis of a uniform set of HST/ACS data for 64 GGCs.10 This data set, previously introduced by Sarajedini et al. (2007), has produced well-defined CMDs for all of the target clusters from the tip of the red giant branch (RGB) to at least ∼6.5 mag below the MSTO (Anderson et al. 2008).”
• A WFC3/HST VIEW OF THE THREE STELLAR POPULATIONS IN THE GLOBULAR CLUSTER NGC 6752 (2013, methodology): “We also used the photometric catalogs presented by Anderson et al. (2008) and obtained from ACS/WFC images taken under GO-10775 (PI: Sarajedini, see Sarajedini et al. 2007).”
• GLOBULAR CLUSTERS IN THE OUTER GALACTIC HALO: NEW HUBBLE SPACE TELESCOPE/ADVANCED CAMERA FOR SURVEYS IMAGING OF SIX GLOBULAR CLUSTERS AND THE GALACTIC GLOBULAR CLUSTER AGE–METALLICITY RELATION (2011, methodology): “Despite its importance in this regard, the deepest published CMD remains that of Buonanno et al. (1991), which extends only ∼1 mag below the MSTO.”
• MULTIPLE STELLAR POPULATIONS IN 47 Tucanae (2011, methodology): “The ACS/WFC images were reduced by using the software described in Anderson et al. (2008).”