Environmental Effects on the ISM and Star Formation Properties of Nearby Spiral Galaxies

被引：1
作者：
Mok, Angus [1 ]
Wilson, Christine [1 ]
机构：
[1] McMaster Univ, Dept Phys & Astron, 1280 Main St West, Hamilton, ON, Canada
来源：
FROM INTERSTELLAR CLOUDS TO STAR-FORMING GALAXIES: UNIVERSAL PROCESSES? | 2015年 / 315期
关键词：
galaxies: ISM; galaxies: spiral; ISM: molecules; stars: formation; LEGACY SURVEY; H-ALPHA; VIRGO;
D O I：
10.1017/S1743921316008188
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We studied molecular gas properties in a sample of 98 H I - flux selected spiral galaxies within similar to 25 Mpc using the CO J = 3 - 2 line, observed with the JCMT, and subdivided into isolated, group, and Virgo subsamples. We find a larger mean H-2 mass in the Virgo galaxies compared to group galaxies, despite their lower mean Hi mass. Combining our data with complementary Ha star formation rate measurements, Virgo galaxies have a longer molecular gas depletion times compared to group galaxies, perhaps due to heating processes in the cluster environment or differences in the turbulent pressure.
引用
收藏
页数：2
相关论文
共 50 条
[41]   ON THE STAR FORMATION LAW FOR SPIRAL AND IRREGULAR GALAXIES [J].
Elmegreen, Bruce G. .
ASTROPHYSICAL JOURNAL LETTERS, 2015, 814 (02)
[42]   SPIRAL-INDUCED STAR FORMATION IN THE OUTER DISKS OF GALAXIES [J].
Bush, Stephanie J. ;
Cox, T. J. ;
Hayward, Christopher C. ;
Thilker, David ;
Hernquist, Lars ;
Besla, Gurtina .
ASTROPHYSICAL JOURNAL, 2010, 713 (02) :780-799
[43]   The star formation efficiency within galaxies [J].
Rownd, BK ;
Young, JS .
ASTRONOMICAL JOURNAL, 1999, 118 (02) :670-704
[44]   The JCMT Nearby Galaxies Legacy Survey - IV. Velocity dispersions in the molecular interstellar medium in spiral galaxies [J].
Wilson, C. D. ;
Warren, B. E. ;
Irwin, J. ;
Knapen, J. H. ;
Israel, F. P. ;
Serjeant, S. ;
Attewell, D. ;
Bendo, G. J. ;
Brinks, E. ;
Butner, H. M. ;
Clements, D. L. ;
Leech, J. ;
Matthews, H. E. ;
Muhle, S. ;
Mortier, A. M. J. ;
Parkin, T. J. ;
Petitpas, G. ;
Tan, B. K. ;
Tilanus, R. P. J. ;
Usero, A. ;
Vaccari, M. ;
van der Werf, P. ;
Wiegert, T. ;
Zhu, M. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 410 (03) :1409-1422
[45]   Hα to FUV ratios in resolved star-forming region populations of nearby spiral galaxies [J].
Hermanowicz, Maciej T. ;
Kennicutt, Robert C. ;
Eldridge, John J. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 432 (04) :3097-3116
[46]   Dense Gas, Dynamical Equilibrium Pressure, and Star Formation in Nearby Star-forming Galaxies [J].
Gallagher, Molly J. ;
Leroy, Adam K. ;
Bigiel, Frank ;
Cormier, Diane ;
Jimenez-Donaire, Maria J. ;
Ostriker, Eve ;
Usero, Antonio ;
Bolatto, Alberto D. ;
Garcia-Burillo, Santiago ;
Hughes, Annie ;
Kepley, Amanda A. ;
Krumholz, Mark ;
Meidt, Sharon E. ;
Meier, David S. ;
Murphy, Eric J. ;
Pety, Jerome ;
Rosolowsky, Erik ;
Schinnerer, Eva ;
Schruba, Andreas ;
Walter, Fabian .
ASTROPHYSICAL JOURNAL, 2018, 858 (02)
[47]   The nature of the ISM in galaxies during the star-formation activity peak of the Universe [J].
Popping, G. ;
Perez-Beaupuits, J. P. ;
Spaans, M. ;
Trager, S. C. ;
Somerville, R. S. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2014, 444 (02) :1301-1317
[48]   Star formation and ISM morphology in tidally induced spiral structures [J].
Pettitt, Alex R. ;
Tasker, Elizabeth J. ;
Wadsley, James W. ;
Keller, Ben W. ;
Benincasa, Samantha M. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 468 (04) :4189-4204
[49]   Metallicity gradients in small and nearby spiral galaxies [J].
Bresolin, Fabio .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 488 (03) :3826-3843
[50]   MAGNETIC FIELDS IN A SAMPLE OF NEARBY SPIRAL GALAXIES [J].
Van Eck, C. L. ;
Brown, J. C. ;
Shukurov, A. ;
Fletcher, A. .
ASTROPHYSICAL JOURNAL, 2015, 799 (01)
12345