作者: abduction 時(shí)間: 2025-3-21 22:09
Star Cluster Systems in Interacting and Starburst Galaxies: A Multicolour Approach,erived from previous estimates based on optical fluxes alone, and (ii) that by considering . the clusters originating in this burst of cluster formation, we uncover the first conclusive observational evidence for an unambiguous turn-over in the luminosity function of a coeval star cluster system wit作者: folliculitis 時(shí)間: 2025-3-22 03:39
VLT Spectroscopy of NGC 3115 Globular Clusters, < 0.0). The abundance ratios for globular clusters in NGC3115 give an inhomogeneous picture. We find a range from solar to super-solar ratios for both blue and red clusters. This is similar to the data for M 31 while the Milky Way seems to harbour clusters which are mainly consistent with [./Fe] ..作者: 易于交談 時(shí)間: 2025-3-22 05:02 作者: Thymus 時(shí)間: 2025-3-22 11:37 作者: Hearten 時(shí)間: 2025-3-22 16:44
Wolfgang Mallock,Udo Riege,Matthias Stahl < 0.0). The abundance ratios for globular clusters in NGC3115 give an inhomogeneous picture. We find a range from solar to super-solar ratios for both blue and red clusters. This is similar to the data for M 31 while the Milky Way seems to harbour clusters which are mainly consistent with [./Fe] ..作者: Hearten 時(shí)間: 2025-3-22 20:32
978-3-642-07339-7Springer-Verlag Berlin Heidelberg 2003作者: visceral-fat 時(shí)間: 2025-3-23 00:18
Extragalactic Globular Cluster Systems978-3-540-45044-3Series ISSN 1431-2433 Series E-ISSN 1611-6143 作者: GRIN 時(shí)間: 2025-3-23 03:46 作者: occult 時(shí)間: 2025-3-23 08:35 作者: Needlework 時(shí)間: 2025-3-23 20:20
https://doi.org/10.1007/978-3-663-08569-0 and determine the ages of globular cluster (sub-)populations. First results indicate that the different galaxies host from little to significant intermediate-age populations, and that the latter have .-element over iron ratios closer to solar than the old population that show an .-element enhancement similar to the diffuse stellar light.作者: Initiative 時(shí)間: 2025-3-24 01:18
Star Clusters in Mergers,about a decade old. But these star clusters are being studied, individually or as populations, with ever increasing interest. In this review article I will describe some of the reasons for this growing interest and summarize some of the recent findings.作者: 流逝 時(shí)間: 2025-3-24 03:20
The H Band Luminosity Function of the Centre of the 30 Dor Cluster,emain-sequence stars down to 1 M.. We do not see any change in the slope of the luminosity function down to the completeness limit anywhere within the observed field. We suggest the flattening seen in the optically derived mass function (MF) around 2 M. claimed by [3] is due to differential reddening within the cluster, and thus may be spurious.作者: 夾死提手勢 時(shí)間: 2025-3-24 07:56
A New Cluster Sub-Population in Lenticular Galaxies,tra, we have shown conclusively that these objects are star clusters associated with their respective galaxies and that they have no known analogs in the MW or elsewhere in the Local Group. These “faint fuzzies” define a new parameter space that must be accommodated in cluster formation models.作者: Entropion 時(shí)間: 2025-3-24 12:54 作者: Generator 時(shí)間: 2025-3-24 15:58 作者: 話 時(shí)間: 2025-3-24 19:38
Austausch universit?rer Kernsystemecluster formation. Empirically it appears that globular cluster formation occurs preferentially in regions in which star formation occurs at a high rate and efficiency. Further, the interstellar medium in such regions is likely to be at a higher pressure than less active star-forming environments. A作者: landmark 時(shí)間: 2025-3-24 23:39
https://doi.org/10.1007/978-3-322-91097-4ependence of the evolution of the mass function of globular cluster systems (GCMF) and of the number of surviving clusters on the properties of the host galaxies. Our simulations include the effects of two-body relaxation, dynamical friction, stellar evolution and the effects of the presence of the 作者: Occlusion 時(shí)間: 2025-3-25 05:06
,Kommunikationssysteme zur Datenübertragung,d in a very simple way from the age and mass histograms of large homogeneous samples of clusters with reliable age and/or mass determinations. We demonstrate the method and derive the values of .. and . from cluster samples in selected fields of four galaxies: M51, M33, SMC and the solar neighbourho作者: 祖?zhèn)?nbsp; 時(shí)間: 2025-3-25 09:52
Sichere Kommunikation im Gesundheitswesen,made in five broad band filters; f336w (U), f439w (B), f555w (V), f675w (R), f814w (I), and transformed to the closest corresponding Cousins-Johnson filter magnitude using the equations defined by Holtzmann [5]. Only sources that were found in every filter were analysed. By comparing the spectral en作者: 帶傷害 時(shí)間: 2025-3-25 11:53 作者: Nausea 時(shí)間: 2025-3-25 17:15 作者: 極大痛苦 時(shí)間: 2025-3-25 23:38
https://doi.org/10.1007/978-3-322-84573-3about a decade old. But these star clusters are being studied, individually or as populations, with ever increasing interest. In this review article I will describe some of the reasons for this growing interest and summarize some of the recent findings.作者: semble 時(shí)間: 2025-3-26 03:20
https://doi.org/10.1007/978-3-322-92382-0This suggests a continuum of cluster properties and a universality in cluster formation mechanisms, which is likely to also include classical “globular” clusters. Comparison with existing data for a sample of galaxies shows that the luminosities of the brightest clusters are consistent with random s作者: NEXUS 時(shí)間: 2025-3-26 06:02 作者: 溝通 時(shí)間: 2025-3-26 10:19
https://doi.org/10.1007/978-3-322-85741-5heoretical stellar population synthesis models, to obtain age estimates. The accuracy to which this can be done depends on the number of observations through different (broad-band) filters available as well as, crucially, on the actual wavelength range covered. I show, based on the examples of the n作者: 無法解釋 時(shí)間: 2025-3-26 13:49
Innovationen als Unternehmensfunktion,emain-sequence stars down to 1 M.. We do not see any change in the slope of the luminosity function down to the completeness limit anywhere within the observed field. We suggest the flattening seen in the optically derived mass function (MF) around 2 M. claimed by [3] is due to differential reddenin作者: BROOK 時(shí)間: 2025-3-26 17:14
Zur Strukturiertheit von Anwendungsbereichenin the Colour-Magnitude Diagram and the synthetic cluster sequences computed from stellar evolutionary models. In the conventional isochrone fitting procedure, the age is estimated in a subjective way. Here, we calculate the degree of likelihood by applying a modern statistical estimator, the Saha e作者: 青石板 時(shí)間: 2025-3-26 23:19
https://doi.org/10.1007/978-3-642-59604-9 cluster system and galaxy formation. Recent . observations have revealed large numbers of low mass X-ray binaries around early type galaxies, a significant fraction of which are associated with globular clusters. I present results from this exciting new field and comment on some of the possibilitie作者: Conduit 時(shí)間: 2025-3-27 04:40 作者: Introvert 時(shí)間: 2025-3-27 05:25 作者: Allowance 時(shí)間: 2025-3-27 11:20
Informationsqualit?t von Nachrichtenron R filters within a field of 36 x 36 arcmin, corresponding to about 200 x 200 kpc at the Fornax distance. This is the largest area around this galaxy ever studied with CCD photometry. The cluster system of NGC 1399 is found to extend further than 100 kpc away from the galaxy. The color distributi作者: Pantry 時(shí)間: 2025-3-27 15:25
Informationsquellen der Konsumentenst detailed information on GCSs to date is dominated by the Milky Way and M31 (both spirals) and smaller galaxies within the Local Group. NGC 5128, as the nearest large E galaxy (.), provides an important link to studies of extragalactic GCSs. But its proximity, combined with a moderately low Galact作者: Emmenagogue 時(shí)間: 2025-3-27 21:27 作者: engagement 時(shí)間: 2025-3-27 22:53 作者: 錯(cuò)事 時(shí)間: 2025-3-28 05:14 作者: 能得到 時(shí)間: 2025-3-28 10:08
1431-2433 evolution studies. As a whole, the?book gives an up-to-date view of the field at the beginning of the new decade, which will without doubt?again bring significant progress in our understanding of globular cluster systems and galaxy formation and evolution..978-3-642-07339-7978-3-540-45044-3Series ISSN 1431-2433 Series E-ISSN 1611-6143 作者: Inertia 時(shí)間: 2025-3-28 13:15
Sichere Kommunikation im Gesundheitswesen,]) were used in this study. 533 sources pass these criteria, and will be referred to as clusters for the remainder of the paper. With this sample we are able to study the cluster formation history, the cluster initial mass function (cIMF), and search for evidence of cluster disruption.作者: 外向者 時(shí)間: 2025-3-28 16:38 作者: 制定 時(shí)間: 2025-3-28 19:22
Informationsqualit?t von Nachrichten. The cluster system contains . clusters and the specific frequency is found to be . in the V band. NGC 1399 shows a pronounced color gradient, which can be interpreted by field populations that are genuinely related to the red and the blue cluster populations.作者: 分開如此和諧 時(shí)間: 2025-3-29 01:50 作者: 土產(chǎn) 時(shí)間: 2025-3-29 05:05
The ,-Function Applied to the Age of Globular Clusters,idence level of 99%, we find that the best estimate of the age is 14.0 Gyr within the range of 13.8 to 14.4 Gyr for NGC 6397, 14.75 Gyr within the range of 14.50 to 15.40 Gyr for M92, and 16.0 Gyr within the range of 15.9 to 16.3 Gyr for M3.作者: 樂章 時(shí)間: 2025-3-29 09:44
Stellar Populations in NGC 1399 Traced by Globular Clusters from a Wide-Field Study,. The cluster system contains . clusters and the specific frequency is found to be . in the V band. NGC 1399 shows a pronounced color gradient, which can be interpreted by field populations that are genuinely related to the red and the blue cluster populations.作者: Pert敏捷 時(shí)間: 2025-3-29 14:54
Conference proceedings 2003chapter, followed by a chapter on young star clusters. Then come four chapters reviewing the globular cluster system of early-type, late-type and dwarf galaxies, as well as of groups of galaxies. One chapter is dedicated to stellar population models and their applications to the field. Finally a cha作者: 千篇一律 時(shí)間: 2025-3-29 18:02 作者: 范例 時(shí)間: 2025-3-29 21:14
Uncovering the NGC 5128 Globular Cluster System, the nearest large E galaxy (.), provides an important link to studies of extragalactic GCSs. But its proximity, combined with a moderately low Galactic latitude ( .) and a longitude ( .) only . from the Galactic center, mean that the global properties of this important GCS have been difficult to determine.作者: assent 時(shí)間: 2025-3-30 00:43
1431-2433 the first chapter, followed by a chapter on young star clusters. Then come four chapters reviewing the globular cluster system of early-type, late-type and dwarf galaxies, as well as of groups of galaxies. One chapter is dedicated to stellar population models and their applications to the field. Fin作者: 地名詞典 時(shí)間: 2025-3-30 06:14 作者: 書法 時(shí)間: 2025-3-30 09:21
Informationsquellen der Konsumenten the nearest large E galaxy (.), provides an important link to studies of extragalactic GCSs. But its proximity, combined with a moderately low Galactic latitude ( .) and a longitude ( .) only . from the Galactic center, mean that the global properties of this important GCS have been difficult to determine.作者: acrophobia 時(shí)間: 2025-3-30 14:13 作者: 去世 時(shí)間: 2025-3-30 17:37
Telemedizin am Beispiel aktiver Implantate, parent galaxy luminosity to an age of 10 Gyr. They are found to be consistent with the values found for giant ellipticals in poor clusters. These findings support the viability of the “merger scenario” for forming the “red” GCs in giant early-type galaxies.作者: 有節(jié)制 時(shí)間: 2025-3-30 23:12 作者: 慌張 時(shí)間: 2025-3-31 01:56
Intermediate-Age Globular Clusters in Merger Remnants, parent galaxy luminosity to an age of 10 Gyr. They are found to be consistent with the values found for giant ellipticals in poor clusters. These findings support the viability of the “merger scenario” for forming the “red” GCs in giant early-type galaxies.作者: 駁船 時(shí)間: 2025-3-31 06:27 作者: STEER 時(shí)間: 2025-3-31 11:59
https://doi.org/10.1007/978-3-322-84012-7ughly constant through that range, resulting in more massive cores at higher .. Fragmentation and collapse ceases entirely for . as expected from analytic arguments. Primordial gas may have effective ., in which case these results may help explain why models of the formation of the first stars produce isolated, massive objects.作者: 結(jié)束 時(shí)間: 2025-3-31 15:08 作者: 一夫一妻制 時(shí)間: 2025-3-31 18:20 作者: Interregnum 時(shí)間: 2025-3-31 23:22
Informationsorientiertes Managementshift. Late stage mergers appear to make a small contribution to the overall GC system of ellipticals as revealed by the presence of some young and intermediate aged GCs. The GC systems of elliptical and spiral galaxies are remarkably similar, suggesting a common formation process.作者: Schlemms-Canal 時(shí)間: 2025-4-1 04:53
The Disruption Time of Clusters in Selected Regions of Four Galaxies,od. The values of . are the same within their uncertainties in the four galaxies with .. However, the disruption time .. of clusters of . is very different in the different locations. It is shortest in the inner region of M51 ( .. = 4 x 10. yrs) and highest in the SMC ( .. = 4 x 10. yrs).作者: flex336 時(shí)間: 2025-4-1 07:58 作者: brassy 時(shí)間: 2025-4-1 12:29 作者: 我正派 時(shí)間: 2025-4-1 14:24
Young Massive Clusters in Normal Galaxies,ampling from a power-law luminosity function, suggesting that statistical effects can account for some of the apparent differences between cluster populations in various environments. It is still unclear to what extent the underlying . distribution of young stellar clusters might be affected by physical properties of the parent galaxies.作者: 男生戴手銬 時(shí)間: 2025-4-1 18:58 作者: machination 時(shí)間: 2025-4-1 23:34
Globular Cluster Formation,cluster formation. Empirically it appears that globular cluster formation occurs preferentially in regions in which star formation occurs at a high rate and efficiency. Further, the interstellar medium in such regions is likely to be at a higher pressure than less active star-forming environments. A作者: 里程碑 時(shí)間: 2025-4-2 04:04 作者: HAVOC 時(shí)間: 2025-4-2 08:12
