Publications of The Korean Astronomical Society (천문학논총)

The Korean Astronomical Society (한국천문학회)
권호 표지
DOI QR코드

DOI QR Code

BS2fit: A NEW TOOL FOR ANALYSING SPECTRA AND COLOR-MAGNITUDE DIAGRAMS OF GALAXIES AND CLUSTERS

  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

We present a new tool for studying the spectral energy distributions (SEDs) and color-magnitude diagrams (CMDs) of galaxies and star clusters, BINARY STAR TO FIT (BS2fit). A key feature of this tool is that it takes the effects of binaries, stellar rotation and star formation history into account. It can be used to determine many parameters, including distance, extinction, binary fraction, rotational star fraction, and star formation history. Because more factors are included than in previous tools, BS2fit can potentially give new insight into the properties of galaxies and clusters. One can contact the authors for cooperation and helps via.

Keywords

References

  1. Bastian, N. & de Mink, S. E., 2009, The Effect of Stellar Rotation on Colour-magnitude Diagrams: on the Apparent Presence of Multiple Populations in Intermediate Age Stellar Clusters, MNRAS, 398, 11 https://doi.org/10.1111/j.1745-3933.2009.00696.x
  2. Brott, I., Evans, C. J., Hunter, I., de Koter, A., Langer, N., Dufton, P. L., Cantiello, M., Trundle, C., Lennon, D. J., de Mink, S. E., Yoon, S.-C., & Anders, P., 2011, Inclusion of Binaries in Evolutionary Population Synthesis, A&A, 530, 116 https://doi.org/10.1051/0004-6361/201016114
  3. Girardi, L., Eggenberger, P., & Miglio, A., 2011, Can Rotation Explain the Multiple Main-sequence Turn-offs of Magellanic Cloud Star Clusters?, MNRAS, 412, 103 https://doi.org/10.1111/j.1745-3933.2011.01013.x
  4. Han, Z., Podsiadlowski, P., & Lynas-Gray, A. E., 2007, A Binary Model for the UV-upturn of Elliptical Galaxies, MNRAS, 380, 1098 https://doi.org/10.1111/j.1365-2966.2007.12151.x
  5. Hernandez-Perez, F. & Bruzual, G., 2013, Revisiting Binary Stars in Population Synthesis Models, MNRAS, 431, 2612 https://doi.org/10.1093/mnras/stt368
  6. Li, Z. & Han, Z., 2008, An Isochrone Data Base and a Rapid Model for Stellar Population Synthesis, MNRAS, 387, 105 https://doi.org/10.1111/j.1365-2966.2008.12793.x
  7. Li, Z. & Han, Z., 2008, How Binary Interactions Affect Spectral Stellar Population Synthesis, ApJ, 685, 225 https://doi.org/10.1086/590228
  8. Li, Z., Mao, C., Chen, L., & Zhang, Q., 2012, Combined Effects of Binaries and Stellar Rotation on the Color-Magnitude Diagrams of Intermediate-age Star Clusters, ApJL, 761, 22 https://doi.org/10.1088/0004-637X/761/1/22
  9. Li, Z., Mao, C., Chen, L., Zhang, Q., & Li, M., 2013, The Potential Importance of Binary Evolution in Ultraviolet-Optical Spectral Fitting of Early-type Galaxies, ApJ, 776, 37 https://doi.org/10.1088/0004-637X/776/1/37
  10. Li, Z., Zhang, L., & Liu, J., 2012, Integrated Spectral Energy Distributions of Binary Star Composite Stellar Populations, MNRAS, 424, 874 https://doi.org/10.1111/j.1365-2966.2012.21225.x
  11. Zhang, F., Han, Z., Li, L., & Hurley, J. R., 2004, Evolutionary Population Synthesis for Binary Stellar Populations, A&A, 415, 117 https://doi.org/10.1051/0004-6361:20031268
  12. Zhang, F., Han, Z., Li, L., & Hurley, J. R., 2005, Inclusion of Binaries in Evolutionary Population Synthesis, MNRAS, 357, 1088 https://doi.org/10.1111/j.1365-2966.2005.08739.x