Skip to main content Accessibility help
×
Home

UVIT observations of UV-Bright stars in four Galactic Globular Clusters

  • Ranjan Kumar (a1), Ananta C. Pradhan (a1), M. Parthasarathy (a2), Devendra K. Ojha (a3), Abhisek Mohapatra (a1) and Jayant Murthy (a2)...

Abstract

We have performed photometric analysis of four Galactic globular clusters (GGCs): NGC 4147, NGC 4590, NGC 5053 and NGC 7492 using far-UV and near-UV filters of the Ultraviolet Imaging Telescope (UVIT) on-board AstroSat. With the help of color-magnitude diagrams (CMDs), we have identified ~150 blue horizontal branch stars (BHBs), and ~40 blue straggler stars (BSS) in the four GGCs. We study the temperature and radial distribution of BHBs and BSS for the four GGCs.

Copyright

References

Hide All
Ambika, S., Parthasarathy, M., Aoki, W., et al. 2004, A&A, 417, 293
Cardelli, J. A., Clayton, G. C., & Mathis, J. S. 1989, ApJ, 345, 245
Castelli, F. & Kurucz, R. L. 2003, Modelling of Stellar Atmospheres, A20
Dalessandro, E., Schiavon, R. P., Rood, R. T., et al. 2012, AJ, 144, 126
Dorman, B., O’Connell, R. W., & Rood, R. T. 1995, ApJ, 442, 105
Collaboration, Gaia, Brown, A. G. A., Vallenari, A., et al. 2018, A& A, 616, A1
Greggio, L. & Renzini, A. 1990, ApJ, 364, 35
Grundahl, F., Catelan, M., Landsman, W. B., Stetson, P. B., & Andersen, M. I. 1999, ApJ, 524, 242
Harris, W. E. 2010, arXiv e-prints, arxiv:1012.3224
Jasniewicz, G., de Laverny, P., Parthasarathy, M., et al. 2004, A&A, 423, 353
Lagioia, E. P., Dalessandro, E., Ferraro, F. R., et al. 2015, ApJ, 800, 52
Lee, H.-c., Lee, Y.-W., & Gibson, B. K. 2002, AJ, 124, 2664
Milone, A. P., Marino, A. F., Piotto, G., et al. 2015, ApJ, 808, 51
Piotto, G., Milone, A. P., Bedin, L. R., et al. 2015, AJ, 149, 91
Postma, J. E. & Leahy, D. 2017, PASP, 129, 115002
Rood, R. T., Dorman, B., Ferraro, F. R., Paltrinieri, B., & Fusi Pecci, F. 1998, Ultraviolet Astrophysics Beyond the IUE Final Archive, 413, 515
Sahu, S., Subramaniam, A., Côté, P., Rao, N. K., & Stetson, P. B. 2019, MNRAS, 482, 1080
Schiavon, R. P., Dalessandro, E., Sohn, S. T., et al. 2012, AJ, 143, 121
Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, ApJ, 500, 525
Sohn, S. T., O’Connell, R. W., Kundu, A., et al. 2006, AJ, 131, 866
Stetson, P. B. 1987, PASP, 99, 191
Subramaniam, A., Sahu, S., Postma, J. E., et al. 2017, AJ, 154, 233
Tandon, S. N., Subramaniam, A., Girish, V., et al. 2017, AJ, 154, 128
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

UVIT observations of UV-Bright stars in four Galactic Globular Clusters

  • Ranjan Kumar (a1), Ananta C. Pradhan (a1), M. Parthasarathy (a2), Devendra K. Ojha (a3), Abhisek Mohapatra (a1) and Jayant Murthy (a2)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.