Results 11 to 20 of about 170,841 (292)

Star Clusters in M31: I. A Catalog and a Study of the Young Clusters [PDF]

The Astronomical Journal, 2008
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 based on ...
Auriere, Barmby, Barmby, Barmby, Battistini, Battistini, Battistini, Beasley, Beaton, Binney, Burstein, Chandar, Cohen, Dame, Dubath, Fusi Pecci, Gieles, Gordon, Heather Morrison, Hodge, James A. Rose, Jarrett, Jeff Kriessler, Kim, Koekemoer, Larsen, Lee, Leitherer, Leonardi, Loinard, Massey, Massey, Mateo, McLaughlin, Mochejska, Morrison, Nelson Caldwell, Paul Harding, Perrett, Ricardo Schiavon, Schiavon, Vetešnik, Whitmore, Williams, Williams, Worthey   +45 more
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Young Star Clusters in the LMC [PDF]

Symposium - International Astronomical Union, 1991
We discuss the integrated colours, kinematics, formation, dynamical evolution and initial mass functions of the young globular star clusters in the Large Magellanic Cloud (LMC). Because these clusters are so young, they offer us insights, unobtainable from the old globular clusters in our Galaxy, into the formation and early dynamical evolution of ...
K. C. Freeman, R.A.W. Elson
openaire   +1 more source

Be Stars in Young LMC Clusters [PDF]

Symposium - International Astronomical Union, 1994
Slitless field Hα spectroscopy with a resolution of 0.2 nm has detected numerous Be stars in 3 young open star clusters in the LMC but only a few each in one Galactic and one LMC cluster. The line widths indicate rapid rotation as is typical of Galactic field Be stars.
H. Kjeldsen, D. Baade
openaire   +1 more source

Young Star Clusters: Progenitors of Globular Clusters!? [PDF]

Highlights of Astronomy, 2005
AbstractStar cluster formation is a major mode of star formation in the extreme conditions of interacting galaxies and violent starbursts. Young clusters are observed to form in a variety of such galaxies, a substantial number resembling the progenitors of globular clusters in mass and size, but with significantly enhanced metallicity.
Anders, Peter, v. Alvensleben, Uta Fritze, de Grijs, Richard   +2 more
openaire   +3 more sources

THE BRIGHTEST YOUNG STAR CLUSTERS IN NGC 5253 [PDF]

The Astrophysical Journal, 2015
67 pages; 11 figures; 7 tables.
Calzetti, D., Johnson, K. E., Adamo, A., Gallagher J. S., III, Andrews, J. E., Smith, L. J., Clayton, G. C., Lee, J. C., Sabbi, E., Ubeda, L., Kim, H., Ryon, J. E., Thilker, D., Bright, S. N., Zackrisson, E., Kennicutt, R. C., de Mink, S. E., Whitmore, B. C., Aloisi, A., Chandar, R. Cignoni, Cook, D., Dale, D. A., Elmegreen, B. G., Elmegreen, D. M., Evans, A. S., Fumagalli, M., Gouliermis, D. A., Grasha, K., Grebel, E. K., Krumholz, M. R., Walterbos, R., Wofford, A., Brown, T. M., Christian, C., Dobbs, C., Herrero, A., Kahre, L., Messa, M., Nair, P., Nota, A., Östlin, G., Pellerin, A., Sacchi, E., Schaerer, D., Tosi, M.   +46 more
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Multi-Color Observations of Young Star Clusters [PDF]

Highlights of Astronomy, 2005
AbstractWe present a new set of evolutionary synthesis models of our GALEV code, specifically developed to include the gaseous emission of presently forming star clusters, in combination with an advanced tool to compare large model grids with multi-color broad-band observations of YSC systems. Tests and first applications are presented.
Anders, Peter, v. Alvensleben, Uta Fritze-, de Grijs, Richard   +2 more
openaire   +3 more sources

Young Star Clusters in M 31 [PDF]

, 2008
In our study of M31's globular cluster system with MMT/Hectospec, we have obtained high-quality spectra of 85 clusters with ages less than 1 Gyr. With the exception of Hubble V, the young cluster in NGC 205, we find that these young clusters have kinematics and spatial distribution consistent with membership in M31's young disk.
Morrison, Heather, Caldwell, Nelson, Harding, Paul, Kriessler, Jeff, Rose, James A., Schiavon, Ricardo   +5 more
openaire   +2 more sources

The structure of young star clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 1999
We analyse and compare the clustering of young stars in Chamaeleon I and Taurus. We compute the mean surface-density of companion stars \bar{N} as a function of angular displacement θfrom each star. We then fit \bar{N}(θ) with two simultaneous power laws.
Gladwin, P. P., Kitsionas, S., Boffin, H. M. J., Whitworth, A. P.   +3 more
openaire   +2 more sources

Be stars in young clusters

The Astrophysical Journal, 1994
Photometric Ha and HP line indices for 71 B stars in seven galactic clusters are presented. Some stars in three of the clusters were observed at two epochs. Using these data nine Be stars were identified. Three of them were previously detected as emission-line stars, while six do not appear to have been previously recognized as such.
Goderya, Shaukat N., Schmidt, Edward G.
openaire   +1 more source

The stellar content of the super star clusters in NGC 1569 [PDF]

, 2001
We discuss HST FOS ultraviolet spectroscopy and NICMOS near-infrared photometry of four young super star clusters in the central region of the irregular starburst galaxy NGC 1569. The new observations coupled with previous HST WFPC2 photometry and ground-
Alessandra Aloisi, Bica E., Buonanno R., Cervino M., Chiosi C., Claus Leitherer, Girardi L., Greve A., Israel F. P., Laura Greggio, Livia Origlia, Maeder A., Meynet G., Monica Tosi, Oliva E., Prada F., Sagar R., van den Bergh S.   +17 more
core   +2 more sources