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The Korean Astronomical Society (한국천문학회)
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MOLECULAR GAS PROPERTIES UNDER ICM PRESSURE IN THE CLUSTER ENVIRONMENT

  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30
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Abstract

We present 12CO (2-1) data for four spiral galaxies (NGC 4330, NGC 4402, NGC 4522, NGC 4569) in the Virgo cluster that are undergoing different ram pressure stages. The goal is to probe the detailed molecular gas properties under strong intra-cluster medium (ICM) pressure using high-resolution millimeter data taken with the Submillimeter Array (SMA). Combining this with Institut de RadioAstronomie $Millim{\acute{e}}trique$ (IRAM) data, we also study spatially resolved temperature and density distributions of the molecular gas. Comparing with multi-wavelength data (optical, $H\small{I}$, UV, $H{\alpha}$), we discuss how molecular gas properties and star formation activity change when a galaxy experiences $H\small{I}$ stripping. This study suggests that ICM pressure can modify the physical and chemical properties of the molecular gas significantly even if stripping does not take place. We discuss how this affects the star formation rate and galaxy evolution in the cluster environment.

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References

  1. Bohringer, H., Briel, U. G., Schwarz, R. A., Voges, W., Hartner, G., & Trumper, J., 1994, The Structure of the Virgo Cluster of Galaxies from Rosat X-ray Images, Nat, 368, 828 https://doi.org/10.1038/368828a0
  2. Chung, A., van Gorkom, J. H., Kenney, J. D .P., & Vollmer, B., 2007, Virgo Galaxies with Long One-sided HI Tails, ApJ, 659, L115 https://doi.org/10.1086/518034
  3. Chung, A., van Gorkom, J. H., Kenney, J. D. P., Crowl, H., & Vollmer, B., 2009, VLA Imaging of Virgo Spirals in Atomic Gas (VIVA). I. The Atlas and the HI Properties, AJ, 138, 1741 https://doi.org/10.1088/0004-6256/138/6/1741
  4. Crowl, H. H., Kenney, J. D. P., van Gorkom, J. H., & Vollmer, B., 2005, Dense Cloud Ablation and Ram Pressure Stripping of the Virgo Spiral NGC 4402, AJ, 130, 65 https://doi.org/10.1086/430526
  5. Crowl, H. H., & Kenney, J. D. P., 2008, The Stellar Populations of Stripped Spiral Galaxies in the Virgo Cluster, AJ, 136, 1623 https://doi.org/10.1088/0004-6256/136/4/1623
  6. Dressler, A., 1980, Galaxy Morphology in Rich Clusters - Implications for the Formation and Evolution of Galaxies, ApJ, 236, 351 https://doi.org/10.1086/157753
  7. Fujita, Y. & Nagashima, M., 1999, Effects of Ram Pressure from the Intracluster Medium on the Star Formation Rate of Disk Galaxies in Clusters of Galaxies, ApJ, 516, 619 https://doi.org/10.1086/307139
  8. Fumagalli, M., Krumholz, M. R., Prochaska, J. X., Gavazzi, G., & Boselli, A., 2009, Molecular Hydrogen Deficiency in HI-poor Galaxies and its Implications for Star Formation, ApJ, 697, 181
  9. Gavazzi, G., Boselli, A., Donati, A., Franzetti, P., & Scodeg-gio, M., 2003, Introducing GOLDMine: A New Galaxy Database on the WEB, A&A, 400, 451 https://doi.org/10.1051/0004-6361:20030026
  10. Gil de Paz, A., Boissier, S., & Madore, B. F., et al., 2007, The GALEX Ultraviolet Atlas of Nearby Galaxies, ApJS, 173, 185 https://doi.org/10.1086/516636
  11. Giovanelli, R. & Haynes, M .P., 1985, Gas Deficiency in Cluster Galaxies - A Comparison of Nine Clusters, ApJ, 292, 404 https://doi.org/10.1086/163170
  12. Gunn, J. E. & Gott, J. R., III 1972, On the Infall of Matter Into Clusters of Galaxies and Some Effects on Their Evolution, ApJ, 176, 1 https://doi.org/10.1086/151605
  13. Helfer, T. T., Thornley, M. D., & Regan, M. W., et al., 2003, The BIMA Survey of Nearby Galaxies (BIMA SONG). II. The CO Data, ApJS, 145, 259 https://doi.org/10.1086/346076
  14. Kenney, J. D. P. & Young, J. S., 1989, The Effects of Environment on the Molecular and Atomic Gas Properties of Large Virgo Cluster Spirals, ApJ, 344, 171 https://doi.org/10.1086/167787
  15. Kenney, J. D. P., van Gorkom, J. H., & Vollmer, B., 2004, VLA HI Observations of Gas Stripping in the Virgo Cluster Spiral NGC 4522, AJ, 127, 3361 https://doi.org/10.1086/420805
  16. Koopmann, R. A. & Kenney, J. D. P., 2004, Massive Star Formation Rates and Radial Distributions from $H{\alpha}$ Imaging of 84 Virgo Cluster and Isolated Spiral Galaxies, ApJ, 613, 851 https://doi.org/10.1086/423190
  17. Koopmann, R. A. & Kenney, J. D. P., 2004, $H{\alpha}$ Morphologies and Environmental Effects in Virgo Cluster Spiral Galaxies, ApJ, 613, 866 https://doi.org/10.1086/423191
  18. Lee et al., in preparation
  19. Leroy, A. K., Walter, F., & Bigiel, F., et al., 2009, Heracles:The HERA CO Line Extragalactic Survey, AJ, 137, 4670 https://doi.org/10.1088/0004-6256/137/6/4670
  20. Qi, C., 2012, http://www.cfa.harvard.edu/cqi/mircook.htm
  21. Sault, R. J., Teuben, P. J., & Wright, M. C. H., 1995, A Retrospective View of Miriad, in Shaw R., Payne H. E., Hayes J. J. E., eds, ASP Conf. Ser. Vol. 77, Astronomi-cal Data Analysis Software and Systems IV. Astron. Soc. Pac., San Francisco, p. 433
  22. Vollmer, B., Balkowski, C., Cayatte, V., van Driel, W., & Huchtmeier, W., 2004, NGC 4569: Recent Evidence for a Past Ram Pressure Stripping Event , A&A, 419, 35 https://doi.org/10.1051/0004-6361:20034552
  23. Vollmer, B., Braine, J., Pappalardo, C., & Hily-Blant, P., 2008, Ram-Pressure Stripped Molecular Gas in the Virgo Spiral Galaxy NGC 4522, A&A, 491, 455 https://doi.org/10.1051/0004-6361:200810432
  24. Vollmer, B., Soida, M., & Braine, J., et al., 2012, Ram Pressure Stripping of the Multiphase ISM and the Star Formation in the Virgo Spiral Galaxy NGC 4330, A&A, 537, 143 https://doi.org/10.1051/0004-6361/201117680
  25. Yasuda, N., Fukugita, M., & Okamura, S., 1997, Study of the Virgo Cluster Using the B-Band Tully-Fisher Relation, ApJS, 108, 417 https://doi.org/10.1086/312960

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