Light element discontinuities suggest an early termination of star formation in the globular cluster NGC 6402 (M14)
نویسندگان
چکیده
منابع مشابه
On the globular cluster formation history of NGC 5128
We deduce the globular cluster formation history of the nearby elliptical NGC 5128 by using a phenomenological chemical enrichment model to reproduce its observed metallicity distribution function (MDF). We derive the observed MDF using recently obtained U and B photometry of the NGC 5128 GC system, with (U − B) used as the metallicity indicator. We test whether the observed MDF can be reproduc...
متن کاملStar formation in young star cluster NGC 1893
We present a comprehensive multi-wavelength study of the star-forming region NGC 1893 to explore the effects of massive stars on low-mass star formation. Using near-infrared colours, slitless spectroscopy and narrow-band Hα photometry in the cluster region we have identified candidate young stellar objects (YSOs) distributed in a pattern from the cluster to one of the nearby nebulae Sim 129. Th...
متن کاملLight Element Abundance Inhomogeneities in Globular Clusters: Probing Star Formation and Evolution in the Early Milky Way
Abundance patterns of the elements C, N, and O are sensitive probes of stellar nucleosynthesis processes and, in addition, O abundances are an important input for stellar age determinations. Understanding the nature of the observed distribution of these elements is key to constraining protogalactic star formation history. Patterns deduced from low-resolution spectroscopy of the CN, CH, NH, and ...
متن کاملThe globular cluster system of an “ old ” merger : NGC 5018 ⋆
We study the properties of the globular cluster system of the “old” merger NGC 5018. We detect a relatively poor globular cluster system, that can be divided into at least two populations based on colors: a small population of blue clusters, aged between several hundred Myr to 6 Gyr, the formation of which was probably induced by the last interaction in the galaxy group; and one (possibly two) ...
متن کاملPhotometric study of the variable star population in the globular cluster NGC 6397
We present the results of a photometric survey for variable stars in the central region of the nearby globular cluster NGC 6397. Time series photometry was obtained for 30 variable objects. The sample includes 12 new objects, of which 6 show periodic light curves and 2 are eclipsing binaries of unknown period. Six variables possess certain and three possess likely X-ray counterparts detected wi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2019
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stz587