%0 Generic %1 alpaslan2016galaxy %A Alpaslan, Mehmet %A Grootes, Meiert W. %A Marcum, Pamela M. %A Popescu, Cristina %A Tuffs, Richard %A Bland-Hawthorn, Joss %A Brough, Sarah %A Brown, Michael J. I. %A Davies, Luke J. M. %A Driver, Simon P. %A Holwerda, Benne W. %A Kelvin, Lee S. %A Lara-López, Maritza A. %A López-Sánchez, Ángel R. %A Loveday, Jon %A Moffett, Amanda %A Taylor, Edward N. %A Owers, Matt %A Robotham, Aaron S. G. %D 2016 %K environment mass sfr stellar %T Galaxy And Mass Assembly (GAMA): Stellar mass growth of spiral galaxies in the cosmic web %U http://arxiv.org/abs/1601.03391 %X We look for correlated changes in stellar mass and star formation rate along filaments in the cosmic web by examining the stellar masses and UV-derived star formation rates (SFR) of 1,799 ungrouped and unpaired spiral galaxies that reside in filaments. We devise multiple distance metrics to characterise the complex geometry of filaments, and find that galaxies closer to the cylindrical centre of a filament have higher stellar masses than their counterparts near the periphery of filaments, on the edges of voids. In addition, these peripheral spiral galaxies have higher specific star formation rates (SSFR) at a given mass. Complementing our sample of filament spiral galaxies with spiral galaxies in tendrils and voids, we find that the average SFR of these objects in different large scale environments are similar to each other with the primary discriminant in SFR being stellar mass, in line with previous works. However, the distributions of SFRs are found to vary with large-scale environment. Our results thus suggest a model in which in addition to stellar mass as the primary discriminant, the large-scale environment is imprinted in the SFR as a second order effect. Furthermore, our detailed results for filament galaxies suggest a model in which gas accretion from voids onto filaments is primarily in an orthogonal direction. Overall, we find our results to be in line with theoretical expectations of the thermodynamic properties of the intergalactic medium in different large-scale environments.

@misc{alpaslan2016galaxy, abstract = {We look for correlated changes in stellar mass and star formation rate along filaments in the cosmic web by examining the stellar masses and UV-derived star formation rates (SFR) of 1,799 ungrouped and unpaired spiral galaxies that reside in filaments. We devise multiple distance metrics to characterise the complex geometry of filaments, and find that galaxies closer to the cylindrical centre of a filament have higher stellar masses than their counterparts near the periphery of filaments, on the edges of voids. In addition, these peripheral spiral galaxies have higher specific star formation rates (SSFR) at a given mass. Complementing our sample of filament spiral galaxies with spiral galaxies in tendrils and voids, we find that the average SFR of these objects in different large scale environments are similar to each other with the primary discriminant in SFR being stellar mass, in line with previous works. However, the distributions of SFRs are found to vary with large-scale environment. Our results thus suggest a model in which in addition to stellar mass as the primary discriminant, the large-scale environment is imprinted in the SFR as a second order effect. Furthermore, our detailed results for filament galaxies suggest a model in which gas accretion from voids onto filaments is primarily in an orthogonal direction. Overall, we find our results to be in line with theoretical expectations of the thermodynamic properties of the intergalactic medium in different large-scale environments.}, added-at = {2016-01-15T09:59:29.000+0100}, author = {Alpaslan, Mehmet and Grootes, Meiert W. and Marcum, Pamela M. and Popescu, Cristina and Tuffs, Richard and Bland-Hawthorn, Joss and Brough, Sarah and Brown, Michael J. I. and Davies, Luke J. M. and Driver, Simon P. and Holwerda, Benne W. and Kelvin, Lee S. and Lara-López, Maritza A. and López-Sánchez, Ángel R. and Loveday, Jon and Moffett, Amanda and Taylor, Edward N. and Owers, Matt and Robotham, Aaron S. G.}, biburl = {https://www.bibsonomy.org/bibtex/28ab30ed1b8ac20d3b4e07bff8d3b7d96/miki}, description = {[1601.03391] Galaxy And Mass Assembly (GAMA): Stellar mass growth of spiral galaxies in the cosmic web}, interhash = {4bf38c701e34c2db9061dfb37aab2420}, intrahash = {8ab30ed1b8ac20d3b4e07bff8d3b7d96}, keywords = {environment mass sfr stellar}, note = {cite arxiv:1601.03391Comment: 16 pages, 15 figures (including one 3D figure that can be interacted with when reading the PDF in Adobe Reader). Accepted for publication in MNRAS on January 13th, 2016}, timestamp = {2016-01-15T09:59:29.000+0100}, title = {Galaxy And Mass Assembly (GAMA): Stellar mass growth of spiral galaxies in the cosmic web}, url = {http://arxiv.org/abs/1601.03391}, year = 2016 }