Results 1 to 10 of about 354,279 (342)

PSR J1922+37: a 1.9 s Pulsar Discovered in the Direction of the Old Open Cluster NGC 6791

The Astrophysical Journal Letters
More than 300 pulsars have been discovered in Galactic globular clusters; however, none have been found in open clusters. Here we present results from a 20 hr survey of seven open clusters with the Five-hundred-meter Aperture Spherical radio Telescope ...
Xiao-Jin Liu, Rahul Sengar, Matthew Bailes, Ralph P. Eatough, Jianping Yuan, Na Wang, Weiwei Zhu, Lu Zhou, He Gao, Zong-Hong Zhu, Xing-Jiang Zhu   +10 more
doaj   +1 more source

Revisiting Open Clusters within 200 pc in the Solar Neighborhood with Gaia DR3

The Astronomical Journal
In this study, we develop a membership identification method and apply it for 30 open clusters (OCs) within 200 pc of the Sun using astrometric data of Gaia DR3.
Penghui Liu, Min Fang, Yue-Lin Sming Tsai, Xiaoying Pang, Fan Wang, Xiaoting Fu   +5 more
doaj   +1 more source

Globular Cluster Formation in M82

, 2003
We present high resolution mid-infrared (mid-IR; 11.7 and 17.65 micron) maps of the central 400 pc region of the starburst galaxy M82. Seven star forming clusters are identified which together provide ~ 15% of the total mid-IR luminosity of the galaxy ...
Cottrell G., Knodlseder J., Mandushev G., Neininger N., P. Plavchan, S. J. Lipscy, Weliachew L.   +6 more
core   +2 more sources

VLA 22 GHz Imaging of Massive Star Formation in Local Wolf–Rayet Galaxies

The Astrophysical Journal
We present 22 GHz imaging of regions of massive star formation within the Local Wolf–Rayet Galaxy Sample, a NSF Karl G. Jansky Very Large Array survey of 30 local galaxies showing spectral features of Wolf–Rayet (WR) stars.
Nicholas G. Ferraro, Jean L. Turner, Sara C. Beck, Edwin Alexani, Runa Indrei, Bethany M. Welch, Tunhui Xie   +6 more
doaj   +1 more source

Structural Parameters of Seven SMC Intermediate-Age and Old Star Clusters

, 2009
We present structural parameters for the seven intermediate-age and old star clusters NGC121, Lindsay 1, Kron 3, NGC339, NGC416, Lindsay 38, and NGC419 in the Small Magellanic Cloud.
Alves, Andrea Kayser, Andreas Koch, Antonella Nota, Binney, Crowl, Da Costa, Da Costa, Daniel Harbeck, Dotter, Elena Sabbi, Eva K. Grebel, Gary Da Costa, Geyer, Gieles, Gisella Clementini, Glatt, Glatt, Gnedin, Goodwin, Grebel, Harris, Hatzidimitriou, Hill, Holtzman, Hunter, John S. Gallagher, Johnson, Katharina Glatt, Koch, Koekemoer, Kontizas, Kontizas, Kontizas, Lah, Mackey, Marco Sirianni, McLaughlin, Mighell, Monica Tosi, Parmentier, Sabbi, van den Bergh, Zaritsky   +43 more
core   +1 more source

Forest Fire Clustering: A Novel Tool for Identifying Star Members of Clusters

The Astronomical Journal
In the era of a data-driven landscape, the development of an efficient and interpretable method has become a pivotal tool for robustly identifying memberships of clusters.
Xingyin Wei, Jing Chen, Su Zhang, Feilong He, Yunbo Zhao, Xuran He, Yongjie Fang, Xinhao Chen, Hao Yang   +8 more
doaj   +1 more source

Gamma Rays from Star Formation in Clusters of Galaxies

, 2012
Star formation in galaxies is observed to be associated with gamma-ray emission. The detection of gamma rays from star-forming galaxies by the Fermi Large Area Telescope (LAT) has allowed the determination of a functional relationship between star ...
Abdo, Ackermann, Ackermann, Bai, Book, Chung, Chung, Clarke, Dale, Egami, Emma M. Storm, Han, McDonald, Miller, Reddy, Reiprich, Rieke, Stefano Profumo, Tesla E. Jeltema, Voelk, Yun   +20 more
core   +1 more source

The Connection Between X-ray Binaries and Star Clusters in NGC 4449

, 2011
We present 23 candidate X-ray binaries with luminosities down to 1.8x10^36 erg/s, in the nearby starburst galaxy NGC 4449, from observations totaling 105 ksec taken with the ACIS-S instrument on the Chandra Space Telescope.
Andrea H. Prestwich, Annibali, Blaauw, Blagoy Rangelov, Chandar, Chandar, Chandar, Chandar, Chevalier, Fall, Fall, Fall, Fall, Freeman, Fryer, Heger, Kundu, Larson, McSwain, Mitsuda, Patnaude, Poveda, Prestwich, Rupali Chandar, Tremonti, Whitmore, Zezas, Zwicky   +27 more
core   +1 more source

A Near-infrared Spectral Library of Very Young Brown Dwarfs and Planetary Mass Objects in the Orion Nebula Cluster

The Astrophysical Journal
Age-benchmark brown dwarf and planetary-mass-object spectroscopy is key to characterizing substellar evolution. In this paper, we present the JHK medium-resolution ( R ∼ 3000) spectra of 25 7–76 M _Jup (spectral types L3.0–M6.0) brown dwarfs and ...
Elena Manjavacas, Mario Gennaro, Sarah Betti, Laurent Pueyo, William O. Balmer, Massimo Robberto   +5 more
doaj   +1 more source

Disruption of giant molecular clouds and formation of bound star clusters under the influence of momentum stellar feedback

, 2019
Energetic feedback from star clusters plays a pivotal role in shaping the dynamical evolution of giant molecular clouds (GMCs). To study the effects of stellar feedback on the star formation efficiency of the clouds and the dynamical response of embedded
Gnedin, Oleg Y., Li, Hui, Marinacci, Federico, Vogelsberger, Mark   +3 more
core   +1 more source