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Galaxy Zoo: the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity

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Galaxy Zoo : the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity. / Darg, Daniel W.; Kaviraj, Sugata; Lintott, Chris J.; Schawinski, Kevin; Sarzi, Marc; Bamford, Steven P.; Silk, Joseph; Andreescu, Dan; Nichol, Robert C.; Raddick, M. Jordan; Slosar, Anze; Szalay, Alexander S.; Thomas, Daniel; Vandenberg, Jan.

In: Monthly Notices of the Royal Astronomical Society, Vol. 401, No. 3, 2010, p. 1552-1563.

Research output: Contribution to journalArticle

Harvard

Darg, DW, Kaviraj, S, Lintott, CJ, Schawinski, K, Sarzi, M, Bamford, SP, Silk, J, Andreescu, D, Nichol, RC, Raddick, MJ, Slosar, A, Szalay, AS, Thomas, D & Vandenberg, J 2010, 'Galaxy Zoo: the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity', Monthly Notices of the Royal Astronomical Society, vol. 401, no. 3, pp. 1552-1563. https://doi.org/10.1111/j.1365-2966.2009.15786.x

APA

Darg, D. W., Kaviraj, S., Lintott, C. J., Schawinski, K., Sarzi, M., Bamford, S. P., Silk, J., Andreescu, D., Nichol, R. C., Raddick, M. J., Slosar, A., Szalay, A. S., Thomas, D., & Vandenberg, J. (2010). Galaxy Zoo: the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity. Monthly Notices of the Royal Astronomical Society, 401(3), 1552-1563. https://doi.org/10.1111/j.1365-2966.2009.15786.x

Vancouver

Darg DW, Kaviraj S, Lintott CJ, Schawinski K, Sarzi M, Bamford SP et al. Galaxy Zoo: the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity. Monthly Notices of the Royal Astronomical Society. 2010;401(3):1552-1563. https://doi.org/10.1111/j.1365-2966.2009.15786.x

Author

Darg, Daniel W. ; Kaviraj, Sugata ; Lintott, Chris J. ; Schawinski, Kevin ; Sarzi, Marc ; Bamford, Steven P. ; Silk, Joseph ; Andreescu, Dan ; Nichol, Robert C. ; Raddick, M. Jordan ; Slosar, Anze ; Szalay, Alexander S. ; Thomas, Daniel ; Vandenberg, Jan. / Galaxy Zoo : the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity. In: Monthly Notices of the Royal Astronomical Society. 2010 ; Vol. 401, No. 3. pp. 1552-1563.

Bibtex

@article{a55bd80751754bf4a977b214267ac825,
title = "Galaxy Zoo: the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity",
abstract = "Following the study of Darg et al., we explore the environments, optical colours, stellar masses, star formation and active galactic nucleus activity in a sample of 3003 pairs of merging galaxies drawn from the Sloan Digital Sky Survey using visual classifications from the Galaxy Zoo project. While Darg et al. found that the spiral-to-elliptical ratio in (major) mergers appeared higher than that of the global galaxy population, no significant differences are found between the environmental distributions of mergers and a randomly selected control sample. This makes the high occurrence of spirals in mergers unlikely to be an environmental effect and must therefore arise from differing time-scales of detectability for spirals and ellipticals. We find that merging galaxies have a wider spread in colour than the global galaxy population, with a significant blue tail resulting from intense star formation in spiral mergers. Galaxies classed as star-forming using their emission-line properties have average star formation rates approximately doubled by the merger process though star formation is negligibly enhanced in merging elliptical galaxies. We conclude that the internal properties of galaxies significantly affect the time-scales over which merging systems can be detected (as suggested by recent theoretical studies) which leads to spirals being {\textquoteleft}over-observed{\textquoteright} in mergers. We also suggest that the transition mass 3 × 1010 M⊙, noted by Kauffmann et al., below which ellipticals are rare could be linked to disc survival/destruction in mergers.",
author = "Darg, {Daniel W.} and Sugata Kaviraj and Lintott, {Chris J.} and Kevin Schawinski and Marc Sarzi and Bamford, {Steven P.} and Joseph Silk and Dan Andreescu and Nichol, {Robert C.} and Raddick, {M. Jordan} and Anze Slosar and Szalay, {Alexander S.} and Daniel Thomas and Jan Vandenberg",
note = "Copyright 2009 The Authors. Journal compilation Copyright 2009 RAS",
year = "2010",
doi = "10.1111/j.1365-2966.2009.15786.x",
language = "English",
volume = "401",
pages = "1552--1563",
journal = "MNRAS",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "3",

}

RIS

TY - JOUR

T1 - Galaxy Zoo

T2 - the properties of merging galaxies in the nearby Universe - local environments, colours, masses, star formation rates and AGN activity

AU - Darg, Daniel W.

AU - Kaviraj, Sugata

AU - Lintott, Chris J.

AU - Schawinski, Kevin

AU - Sarzi, Marc

AU - Bamford, Steven P.

AU - Silk, Joseph

AU - Andreescu, Dan

AU - Nichol, Robert C.

AU - Raddick, M. Jordan

AU - Slosar, Anze

AU - Szalay, Alexander S.

AU - Thomas, Daniel

AU - Vandenberg, Jan

N1 - Copyright 2009 The Authors. Journal compilation Copyright 2009 RAS

PY - 2010

Y1 - 2010

N2 - Following the study of Darg et al., we explore the environments, optical colours, stellar masses, star formation and active galactic nucleus activity in a sample of 3003 pairs of merging galaxies drawn from the Sloan Digital Sky Survey using visual classifications from the Galaxy Zoo project. While Darg et al. found that the spiral-to-elliptical ratio in (major) mergers appeared higher than that of the global galaxy population, no significant differences are found between the environmental distributions of mergers and a randomly selected control sample. This makes the high occurrence of spirals in mergers unlikely to be an environmental effect and must therefore arise from differing time-scales of detectability for spirals and ellipticals. We find that merging galaxies have a wider spread in colour than the global galaxy population, with a significant blue tail resulting from intense star formation in spiral mergers. Galaxies classed as star-forming using their emission-line properties have average star formation rates approximately doubled by the merger process though star formation is negligibly enhanced in merging elliptical galaxies. We conclude that the internal properties of galaxies significantly affect the time-scales over which merging systems can be detected (as suggested by recent theoretical studies) which leads to spirals being ‘over-observed’ in mergers. We also suggest that the transition mass 3 × 1010 M⊙, noted by Kauffmann et al., below which ellipticals are rare could be linked to disc survival/destruction in mergers.

AB - Following the study of Darg et al., we explore the environments, optical colours, stellar masses, star formation and active galactic nucleus activity in a sample of 3003 pairs of merging galaxies drawn from the Sloan Digital Sky Survey using visual classifications from the Galaxy Zoo project. While Darg et al. found that the spiral-to-elliptical ratio in (major) mergers appeared higher than that of the global galaxy population, no significant differences are found between the environmental distributions of mergers and a randomly selected control sample. This makes the high occurrence of spirals in mergers unlikely to be an environmental effect and must therefore arise from differing time-scales of detectability for spirals and ellipticals. We find that merging galaxies have a wider spread in colour than the global galaxy population, with a significant blue tail resulting from intense star formation in spiral mergers. Galaxies classed as star-forming using their emission-line properties have average star formation rates approximately doubled by the merger process though star formation is negligibly enhanced in merging elliptical galaxies. We conclude that the internal properties of galaxies significantly affect the time-scales over which merging systems can be detected (as suggested by recent theoretical studies) which leads to spirals being ‘over-observed’ in mergers. We also suggest that the transition mass 3 × 1010 M⊙, noted by Kauffmann et al., below which ellipticals are rare could be linked to disc survival/destruction in mergers.

U2 - 10.1111/j.1365-2966.2009.15786.x

DO - 10.1111/j.1365-2966.2009.15786.x

M3 - Article

VL - 401

SP - 1552

EP - 1563

JO - MNRAS

JF - MNRAS

SN - 0035-8711

IS - 3

ER -

ID: 65846