A double stellar generation in the globular cluster NGC 6656 (M 22): Two stellar groups with different iron and s-process element abundances

By A. Marino, A. Milone, G. Piotto, S. Villanova, L. Bedin, Andrea Bellini, A. Renzini. 2009

138 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/abd626da343fc1a958769ffe26c4f46aa5542d9d

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In Astronomy and Astrophysics

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

In Instrumentation

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

Citations in the corpus

• The Hubble Space Telescope UV Legacy Survey of Galactic globular clusters – IX. The Atlas of multiple stellar populations (2016, background): “…all type-II clusters exhibit either split or multimodal SGBs when observed in both ultraviolet and optical filters, in contrast to Type I GCs where multiple populations along the SGB are visible only in CMDs that include ultraviolet bands (Milone et al. 2008; Marino et al.2009; Piotto et al. 2012).”
• THE HUBBLE SPACE TELESCOPE UV LEGACY SURVEY OF GALACTIC GLOBULAR CLUSTERS. I. OVERVIEW OF THE PROJECT AND DETECTION OF MULTIPLE STELLAR POPULATIONS (2014, background): “In an even earlier project, GO-12311 (PI Piotto, 17 orbits), we had collected WFC3/UVIS F275W images in the GO10775 fields of five more clusters (47Tuc, M4, M22, NGC 1851, and NGC 6752).”
• Properties of stellar generations in globular clusters and relations with global parameters (2010, methodology): “In 3 A chemical analysis similar to ours has been performed in M 22 by Marino et al. (2009).”
• The second and third parameters of the horizontal branch in globular clusters (2010, methodology): “…this data set with a few GCs from the literature (Shetrone & Keane 2000 for NGC 362; Sneden et al. 2004 and Cohen & Melendez 2005 for NGC 5272 and NGC 6205; Sneden et al. 1991, 2000 for NGC 6341; Marino et al. 2008 for NGC 6121; Marino et al. 2009 for NGC 6656; and Yong et al. 2005 for NGC 6752).”
• Intrinsic iron spread and a new metallicity scale for globular clusters (2009, background): “…of several bursts of star formation, with corresponding peaks in the metal abundance (see Gratton et al. 2004 for a comprehensive discussion) and a spread in metallicity seems to be confirmed in M 22 (Marino et al. 2009) as well as in M 54 (Bellazzini et al. 2008; Carretta et al., in preparation).”
• THE ABUNDANCES OF NEUTRON-CAPTURE SPECIES IN THE VERY METAL-POOR GLOBULAR CLUSTER M15: A UNIFORM ANALYSIS OF RED GIANT BRANCH AND RED HORIZONTAL BRANCH STARS (2011, background): “The abundances for the neutron(n) capture elements europium and barium have been measured in several GC’s, and only in a few, exceptional cases have significantly large intracluster differences in these values been seen (e.g. M22; Marino et al. 2009(65)).”
• A COMPLETE SPECTROSCOPIC SURVEY OF THE MILKY WAY SATELLITE SEGUE 1: THE DARKEST GALAXY (2010, background): “…to be subtle (which is why they are only being recognized now) and are preferentially found in luminous clusters that are often argued to be the remnants of tidally stripped dwarf galaxies (e.g., Lee et al. 1999; Marino et al. 2009; Da Costa et al. 2009; Ferraro et al. 2009; Cohen et al. 2010).”
• The ACS survey of Galactic globular clusters. XII. Photometric binaries along the main sequence (2011, background): “In this case theoretical isochrones show that the measured [Fe/H] difference of∼0.15 dex do not produce any appreciablemF606W−mF814W color bimodality among MS stars (Marino et al. 2009, 2011).”
• Abundance patterns of multiple populations in globular clusters: a chemical evolution model based on yields from AGB ejecta (2010, result): “…(e.g., for a recent analysis, Johnson et al. 2009, and references therein) and more recently it has been confirmed in other massive clusters like M22 (Marino et al. 2009; Da Costa et al. 2009, and references therein), M54 (Sarajedini & Layden 1995; Bellazzini et al. 2008, and references therein),…”
• The two metallicity groups of the globular cluster M 22: a chemical perspective (2011, unknown): “…50 75 5 Wang et al. (2003) MCD-2DC 60,000 4200−9000 70 120 6 Tull et al. (1995) LICK-HAM 50,000 4800−8800 50 90 9 Vogt et al. (1987) Valenti et al. (1995) VLT-UVES 45,000 3300−4500 100 120 16 Dekker et al. (2000) 4800−6800 Marino et al. (2009) (a) Short-hand notation adopted in this paper.”