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Related papers: Disk Frequencies and Lifetimes in Young Clusters

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We investigate the stellar populations in the star forming ring of the luminous infrared galaxy NGC 7469. We use Hubble Space Telescope multi-wavelength (UV through NIR) imaging complemented with new K-band ground-based long-slit…

We present a study of the evolution of the inner few astronomical units of protoplanetary disks around low-mass stars. We consider nearby stellar groups with ages spanning from 1 to 11 Myr, distributed into four age bins. Combining…

We use N-body integration to follow the evolution of clusters of 200 binary systems with different initial half mass radii $R_{0.5}$. We also simulate single-star clusters. All clusters evolve according to the same $n(t)$ curve, where…

Astrophysics · Physics 2015-06-24 Pavel Kroupa

The Nuclear Stellar Disk has been a highly active star-forming region in the Milky Way for approximately the last 30 million years. Despite hosting prominent clusters like Arches, Quintuplet, and Nuclear Stellar, their combined mass is less…

Astrophysics of Galaxies · Physics 2024-01-30 Á. Martínez-Arranz , R. Schödel , F. Nogueras-Lara , F. Najarro , R. Fedriani

[Abridged] We map the stellar age distribution ($\lesssim 1$ Gyr) across a 6kpc$\,\times\,$6kpc area of the Galactic disc to constrain our Galaxy's recent star-formation history. Our modelling draws on the sample of Zari et al. (2021) that…

Astrophysics of Galaxies · Physics 2022-12-21 E. Zari , N. Frankel , H. -W. Rix

We construct a sample of nearly 30,000 main-sequence stars with 4500K $<T\rm_{eff}<$ 5000K and stellar ages estimated by the chromospheric activity$-$age relation. This sample is used to determine the age distribution in the $R-Z$ plane of…

Astrophysics of Galaxies · Physics 2021-03-03 Jiajun Zhang , Jingkun Zhao , Terry D. Oswalt , Xilong Liang , Xianhao Ye , Gang Zhao

We report on the {\lambda} = 5-36{\mu}m Spitzer Infrared Spectrograph spectra of 79 young stellar objects in the very young nearby cluster NGC 1333. NGC 1333's youth enables the study of early protoplanetary disk properties, such as the…

Using multi-wavelength imaging from the Wide Field Camera 3 on the Hubble Space Telescope we study the stellar cluster populations of two adjacent fields in the nearby face-on spiral galaxy, M83. The observations cover the galactic centre…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 N. Bastian , A. Adamo , M. Gieles , H. J. G. L. M. Lamers , S. S. Larsen , E. Silva-Villa , L. J. Smith , R. Kotulla , I. S. Konstantopoulos , G. Trancho , E. Zackrisson

The evolution of HII regions/supershells can trigger a new generation of stars/clusters at their peripheries, with environmental conditions that may affect the initial mass function, disk evolution and star formation efficiency. In this…

Solar and Stellar Astrophysics · Physics 2017-02-22 Jessy Jose , Gregory J. Herczeg , Manash R. Samal , Qiliang Fang , Neelam Panwar

We present results from the first population synthesis study of protostellar discs. We analyse the evolution and properties of a large sample of protostellar discs formed in a radiation hydrodynamical simulation of star cluster formation.…

Solar and Stellar Astrophysics · Physics 2018-01-25 Matthew R. Bate

Recent HST/ACS images of M82 covering the entire galaxy have been used to detect star clusters. The galaxy is known to contain a young population (age < 10 Myr) in its starburst nucleus, surrounded by a post-starburst disk of age < 1 Gyr.…

Astrophysics · Physics 2007-10-12 Y. D. Mayya , D. Rosa-Gonzalez , L. Rodriguez , L. Carrasco , R. Romano , A. Luna

The early evolution of star clusters in the Small Magellanic Cloud (SMC) has been the subject of significant recent controversy, particularly regarding the importance and length of the earliest, largely mass-independent disruption phase…

Astrophysics · Physics 2009-11-13 Richard de Grijs , Simon P. Goodwin

In very young clusters, stellar age distribution is the empirical proof of the duration of star formation (SF) and of the physical mechanisms involved in the process. We derived accurate stellar ages for the cluster NGC6530, associated with…

We present a study of the hierarchical clustering of the young stellar clusters in six local (3--15 Mpc) star-forming galaxies using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury Program LEGUS (Legacy…

We determine the age distribution of star clusters in the Antennae galaxies (NGC 4038/9) for two mass-limited samples (M > 3 x 10^4 M_{\odot} and M > 2 x 10^5 M_{\odot}). This is based on integrated broadband UBVI and narrowband H-alpha…

Astrophysics · Physics 2009-11-13 S. Michael Fall , Rupali Chandar , Bradley C. Whitmore

(abridge) The nearby young stellar association Epsilon Cha association has an estimated age of 3-5 Myr, making it an ideal laboratory to study the disk dissipation process and provide empirical constraints on the timescale of planet…

Solar and Stellar Astrophysics · Physics 2015-06-11 M. Fang , R. van Boekel , J. Bouwman , Th. Henning , W. A. Lawson , A. Sicilia-Aguilar

The evolution of star clusters in the Magellanic Clouds has been the subject of significant recent controversy, particularly regarding the importance and length of the earliest, largely mass-independent disruption phase (referred to as…

Astrophysics · Physics 2009-11-13 Richard de Grijs , Simon P. Goodwin

We present an analysis of Spitzer IRAC (3.6--8um) and MIPS (24um) imaging of members of the 16(+10/-5)Myr old open cluster NGC 1960 (M36). Models of terrestrial planet formation indicate that rocky planets are likely to achieve their final…

Astrophysics of Galaxies · Physics 2015-05-30 R. Smith , R. D. Jeffries

To study the vertical distribution of the earliest stages of star formation in galaxies, three edge-on spirals, NGC 891, NGC 3628, and IC 5052 observed by the Spitzer Space Telescope InfraRed Array Camera (IRAC) were examined for compact 8…

Astrophysics of Galaxies · Physics 2020-06-03 Bruce G. Elmegreen , Debra M. Elmegreen

We report on synoptic observations at 3.6 and 4.5micron of young stellar objects in IC 348 with 38 epochs covering 40 days. We find that among the detected cluster members, 338 at [3.6] and 269 at both [3.6] and [4.5], many are variable on…

Solar and Stellar Astrophysics · Physics 2015-06-12 Kevin Flaherty , james Muzerolle , George Rieke , Robert Gutermuth , Zoltan Balog , William Herbst , S. T. Megeath