中文
相关论文

相关论文: Ages of M33 Star Clusters Based on the HST/WFPC2 P…

200 篇论文

We present integrated photometry and color-magnitude diagrams for 161 star clusters in M33, of which 115 were previously uncataloged, using the Advanced Camera For Surveys Wide Field Channel onboard the Hubble Space Telescope. The…

星系天体物理 · 物理学 2011-02-11 Izaskun San Roman , Ata Sarajedini , Donald R. Garnett , Jon A. Holtzman

We present integrated photometry and color-magnitude diagrams (CMDs) for 24 star clusters in M33, of which 12 were previously uncataloged. These results are based on Advanced Camera for Surveys observations from the Hubble Space Telescope…

天体物理学 · 物理学 2008-11-26 Ata Sarajedini , M. K. Barker , Doug Geisler , Paul Harding , Robert Schommer

We present the result of a survey for star clusters in M33 using the HST/WFPC2 archive images. We have found 104 star clusters, including 32 new ones, in the images of 24 fields that were not included in the previous studies. Combining…

天体物理学 · 物理学 2008-11-26 Won-Kee Park , Myung Gyoon Lee

We present a new catalog of star cluster candidates in the nearby spiral galaxy M33. It is based on eight existing catalogs wherein we have cross-referenced identifications and endeavored to resolve inconsistencies between them. Our catalog…

天体物理学 · 物理学 2009-06-23 Ata Sarajedini , Conor L. Mancone

We report on the properties of 89 low mass star clusters located in the vicinity of luminous young clusters (blue globulars) in the disk of M31. 82 of the clusters are newly detected. We have determined their integrated magnitudes and…

星系天体物理 · 物理学 2015-05-13 P. W. Hodge , O. K. Krienke , M. Bellazzini , S. Perina , P. Barmby , J. G. Cohen , T. H. Puzia , J. Strader

{Aims.} We present the main results of an imaging survey of possible young massive clusters (YMC) in M31 performed with the Wide Field and Planetary Camera2 (WFPC2) on the Hubble Space Telescope (HST). We present the images and color…

The photometric characterization of M33 star clusters is far from complete. In this paper, we present homogeneous $UBVRI$ photometry of 708 star clusters and cluster candidates in M33 based on archival images from the Local Group Galaxies…

星系天体物理 · 物理学 2015-06-18 Zhou Fan , Richard de Grijs

We present a method for finding clusters of young stars in M31 using broadband WFPC2 data from the HST data archive. Applying our identification method to 13 WFPC2 fields, covering an area of ~60 arcmin^2, has revealed 79 new candidate…

天体物理学 · 物理学 2009-11-06 Benjamin F. Williams , Paul W. Hodge

We present a catalog of 2,990 extended sources in a 1deg x1deg area centered on M33 using the MegaCam camera on the 3.6m Canada-France-Hawaii telescope (CFHT). The catalog includes 599 new candidate stellar clusters, 204 previously…

星系天体物理 · 物理学 2015-05-19 Izaskun San Roman , Ata Sarajedini , Antonio Aparicio

We have used deep ACS/WFC images of M33 to check nature of extended objects detected by the ground based survey of Zloczewski et al. (2008). A total of 24 candidates turned out to be genuine compact stellar clusters. In addition we detected…

太阳与恒星天体物理 · 物理学 2009-03-24 K. Zloczewski , J. Kaluzny

In order to empirically determine the timescale and environmental dependence of stellar cluster disruption, we have undertaken an analysis of the unprecedented multi-pointing (seven), multi-wavelength (U, B, V, H$\alpha$, and I) Hubble…

星系天体物理 · 物理学 2015-06-18 E. Silva-Villa , A. Adamo , N. Bastian , M. Fouesneau , E. Zackrisson

We present deep integrated-light spectroscopy of nine M33 globular clusters taken with the Hectospec instrument at the MMT Observatory. Based on our spectroscopy and previous deep color-magnitude diagrams obtained with HST/WFPC2, we present…

天体物理学 · 物理学 2009-11-11 Rupali Chandar , Thomas H. Puzia , Ata Sarajedini , Paul Goudfrooij

We present new high signal-to-noise spectroscopic data on the M31 globular cluster system, obtained with the Hectospec multifiber spectrograph on the 6.5m MMT. More than 300 clusters have been observed at a resolution of 5A. The primary…

星系天体物理 · 物理学 2015-05-27 Nelson Caldwell , Ricardo Schiavon , Heather Morrison , James A. Rose , Paul Harding

We present the morphological properties of 161 star clusters in M33 using the Advanced Camera For Surveys Wide Field Channel onboard the Hubble Space Telescope using observations with the F606W and F814W filters. We obtain, for the first…

星系天体物理 · 物理学 2015-06-05 Izaskun San Roman , Ata Sarajedini , Jon A. Holtzman , Donald R. Garnett

In this third paper of our series, we present CCD spectrophotometry of 78 star clusters that were detected by Chandar, Bianchi, & Ford in the nearby spiral galaxy M33. CCD images of M33 were obtained as a part of the BATC Color Survey of…

天体物理学 · 物理学 2009-11-07 Jun Ma , Xu Zhou , Jiansheng Chen , Hong Wu , Zhaoji Jiang , Suijian Xue , Jin Zhu

We present an updated catalog of 1300 objects in the field of M31, including 670 likely star clusters of various types. Archival images were inspected to confirm cluster classifications where possible, but most of the classifications were…

We present results of age determination based on the standard procedure of isochrone fitting for about 600 star clusters younger than about 1.2 Gyr from the central parts of the LMC. Comparison of age distributions of star clusters from the…

天体物理学 · 物理学 2007-05-23 G. Pietrzynski , A. Udalski

We select from Paper I a sample of 306 massive star clusters observed with the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) in the vicinity fields of M31 and M33 and determine their metallicities, ages and masses.…

We use new WFC3 observations of the nearby grand design spiral galaxy M83 to develop two independent methods for estimating the ages of young star clusters. The first method uses the physical extent and morphology of Halpha emission to…

We analyze archival HST/STIS/FUV-MAMA imaging and spectroscopy of 13 compact star clusters within the circumnuclear starburst region of M83, the closest such example. We compare the observed spectra with semi-empirical models, which are…

星系天体物理 · 物理学 2015-05-20 Aida Wofford , Rupali Chandar , Claus Leitherer
‹ 上一页 1 2 3 10 下一页 ›