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相关论文: Globular Cluster Formation in M82

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We present multiband photometric observations of three spiral galaxies selected in a sample suited for the study of young stellar groupings and their relationship with the parent galaxy and the galactic environment. Star forming regions…

天体物理学 · 物理学 2007-05-23 P. Battinelli , R. Capuzzo-Dolcetta , P. W. Hodge , A. Vicari , T. K. Wyder

We present broad-band (U, V, I,and H) and narrow-band(H-alpha+[N II] and Paschen-alpha) images of the circumnuclear starburst rings in two nearby spiral galaxies, NGC 1512 and NGC 5248, obtained with WFPC2 and NICMOS on HST. Combined with…

天体物理学 · 物理学 2009-11-06 Dan Maoz , Aaron J. Barth , Luis C. Ho , Amiel Sternberg , Alexei V. Filippenko

We have discovered an optically rich galaxy cluster at z=1.7089 with star formation occurring in close proximity to the central galaxy. The system, SpARCS104922.6+564032.5, was detected within the Spitzer Adaptation of the red-sequence…

Using deep photometric data from WFC@INT and [email protected] we measure the outer number density profiles of 19 stellar clusters located in the inner region of the Milky Way halo (within a Galactocentric distance range of 10-30 kpc) in order to…

We conduct a Galactic census of Giant HII regions, based on the all sky 6cm dataset of Kuchar & Clark, plus the kinematic distances obtained by Russeil. From an inspection of mid-IR Mid-course Space Experiment (MSX) and far-IR IRAS Sky…

天体物理学 · 物理学 2009-11-10 Peter S Conti , Paul A. Crowther

We have identified 26 new globular cluster candidates in the inner 3 kpc of NGC 5128 (Cen A), the nearest known large galaxy being the probable product of a merger. The clusters are selected on the basis of their structural parameters…

天体物理学 · 物理学 2009-10-28 D. Minniti , M. V. Alonso , P. Goudfrooij , P. Jablonka , G. Meylan

We measure the rest-frame colors (dust-corrected), infrared luminosities, star formation rates, and stellar masses of 92 galaxies in a Spitzer-selected cluster at z=1.62. By fitting spectral energy distributions (SEDs) to 10-band photometry…

The mid infrared spectra of the starbursts show the 9.7$\mu m$ silicate absorption feature and strong mid infrared emission bands centered at 6.2, 7.7, and 11.3 $\mu$m. Illustrative models of the {\it active} galaxies are presented: As the…

天体物理学 · 物理学 2007-05-23 Ralf Siebenmorgen

By means of grid-based, 3D hydrodynamical simulations we study the formation of second generation (SG) stars in a young globular cluster (GC) of mass 10^7 Msun, the possible progenitor of an old GC with a present mass ~(1-5) * 10^6 Msun.…

太阳与恒星天体物理 · 物理学 2019-08-07 F. Calura , A. D'Ercole , E. Vesperini , E. Vanzella , A. Sollima

We investigate star formation at very early evolutionary phases in five massive clouds in the inner 500 pc of the Galaxy, the Central Molecular Zone. Using interferometer observations of H$_2$O masers and ultra-compact H II regions, we find…

Surface brightness profiles for 23 M31 star clusters were measured using images from the Wide Field Planetary Camera 2 on the Hubble Space Telescope, and fit to two types of models to determine the clusters' structural properties. The…

星系天体物理 · 物理学 2011-01-07 P. Barmby , S. Perina , M. Bellazzini , J. G. Cohen , P. W. Hodge , J. P. Huchra , M. Kissler-Patig , T. H. Puzia , J. Strader

Our Galactic Center hosts over 10% of the known massive stars in the Galaxy. The majority of these stars are located in three particularly massive clusters that formed within the past 5 Myr. While these clusters are extraordinary, their…

天体物理学 · 物理学 2009-11-07 Donald F. Figer

We present a thorough study of the specific star formation rates for MIPS 24um selected galaxies in the Coma cluster. We build galaxy spectral energy distributions using optical (u',g',r',i',z'), Near-infrared (J,H,Ks), and Mid to…

宇宙学与河外天体物理 · 物理学 2015-05-30 Louise O. V. Edwards , Dario Fadda

We present a study of the properties of the star-cluster systems around pseudo-bulges of late-type spiral galaxies using a sample of 11 galaxies with distances from 17 to 37 Mpc. Star clusters are identified from multiband HST ACS and WFPC2…

宇宙学与河外天体物理 · 物理学 2015-05-14 Daiana Di Nino , Michele Trenti , Massimo Stiavelli , C. Marcella Carollo , Claudia Scarlata , Rosemary F. G. Wyse

We present an all-sky sample of 984 candidate intermediate-mass Galactic star-forming regions color-selected from the Infrared Astronomical Satellite (IRAS) Point Source Catalog and morphologically classify each object using mid-infrared…

Subarcsecond infrared and radio observations yield important information about the formation of super star clusters from their surrounding gas. We discuss the general properties of ionized and molecular gas near young, forming SSCs, as…

天体物理学 · 物理学 2007-05-23 Jean L. Turner , Sara C. Beck

To investigate the star-forming process in nearby dwarf galaxies, we present Integral Field Units (IFU) observation of the star-forming dwarf galaxy, NGC 1522, with the Very Large Telescope (VLT)/Multi Unit Spectroscopic Explorer (MUSE) as…

星系天体物理 · 物理学 2025-05-16 Liuze Long , Yulong Gao , Qiusheng Gu , Yong Shi , Xin Li , Can Xu , Yifei Jin , Zhiyuan Zheng , Jing Dou , Fuyan Bian , Xiaoling Yu

We have obtained maps of the 1.25mm thermal dust emission and the molecular gas emission over a region of 20' by 10' arcmin around the Trifid Nebula (M20), with the IRAM 30m and the CSO telescopes as well as in the mid-infrared wavelength…

天体物理学 · 物理学 2015-05-13 B. Lefloch , J. Cernicharo , J. R. Pardo

We present results from dynamical Monte Carlo simulations of dense star clusters near the Galactic center. These clusters sink toward the center of the Galaxy by dynamical friction. During their inspiral, they may undergo core collapse and…

天体物理学 · 物理学 2009-11-10 M. Atakan Gürkan , Frederic A. Rasio

We examine whether the super star-forming clumps (R~1-3 kpc; M~10^8-10^9.5 Msun) now known to be a key component of star-forming galaxies at z~2 could be the formation sites of the locally observed old globular cluster population. We find…

宇宙学与河外天体物理 · 物理学 2015-05-14 K. L. Shapiro , R. Genzel , N. M. Foerster Schreiber