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Galaxy Zoo: bar lengths in local disc galaxies

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Galaxy Zoo : bar lengths in local disc galaxies. / Hoyle, Ben; Masters, Karen L.; Nichol, Robert C.; Edmondson, Edward M.; Smith, Arfon M. ; Lintott, Chris; Scranton, Ryan; Bamford, Steven P.; Schawinski, Kevin; Thomas, Daniel.

In: Monthly Notices of the Royal Astronomical Society, Vol. 415, No. 4, 2011, p. 3627-3640.

Research output: Contribution to journalArticle

Harvard

Hoyle, B, Masters, KL, Nichol, RC, Edmondson, EM, Smith, AM, Lintott, C, Scranton, R, Bamford, SP, Schawinski, K & Thomas, D 2011, 'Galaxy Zoo: bar lengths in local disc galaxies', Monthly Notices of the Royal Astronomical Society, vol. 415, no. 4, pp. 3627-3640. https://doi.org/10.1111/j.1365-2966.2011.18979.x

APA

Hoyle, B., Masters, K. L., Nichol, R. C., Edmondson, E. M., Smith, A. M., Lintott, C., Scranton, R., Bamford, S. P., Schawinski, K., & Thomas, D. (2011). Galaxy Zoo: bar lengths in local disc galaxies. Monthly Notices of the Royal Astronomical Society, 415(4), 3627-3640. https://doi.org/10.1111/j.1365-2966.2011.18979.x

Vancouver

Hoyle B, Masters KL, Nichol RC, Edmondson EM, Smith AM, Lintott C et al. Galaxy Zoo: bar lengths in local disc galaxies. Monthly Notices of the Royal Astronomical Society. 2011;415(4):3627-3640. https://doi.org/10.1111/j.1365-2966.2011.18979.x

Author

Hoyle, Ben ; Masters, Karen L. ; Nichol, Robert C. ; Edmondson, Edward M. ; Smith, Arfon M. ; Lintott, Chris ; Scranton, Ryan ; Bamford, Steven P. ; Schawinski, Kevin ; Thomas, Daniel. / Galaxy Zoo : bar lengths in local disc galaxies. In: Monthly Notices of the Royal Astronomical Society. 2011 ; Vol. 415, No. 4. pp. 3627-3640.

Bibtex

@article{3cd0d3f5a1cd4a8fa30b085e06ec4958,
title = "Galaxy Zoo: bar lengths in local disc galaxies",
abstract = "We present an analysis of bar length measurements of 3150 local galaxies in a volume-limited sample of low-redshift (z < 0.06) disc galaxies. Barred galaxies were initially selected from the Galaxy Zoo 2 project, and the lengths and widths of the bars were manually drawn by members of the Galaxy Zoo community using a Google Maps interface. Bars were measured independently by different observers, multiple times per galaxy (≥3), and we find that observers were able to reproduce their own bar lengths to 3 per cent and each others{\textquoteright} to better than 20 per cent. We find a colour bimodality in our disc galaxy population with bar length, i.e. longer bars inhabit redder disc galaxies and the bars themselves are redder, and that the bluest galaxies host the smallest galactic bars (<5 h−1 kpc). We also find that bar and disc colours are clearly correlated, and for galaxies with small bars, the disc is, on average, redder than the bar colours, while for longer bars the bar then itself is redder, on average, than the disc. We further find that galaxies with a prominent bulge are more likely to host longer bars than those without bulges. We categorize our galaxy populations by how the bar and/or ring are connected to the spiral arms. We find that galaxies whose bars are directly connected to the spiral arms are preferentially bluer and that these galaxies host typically shorter bars. Within the scatter, we find that stronger bars are found in galaxies which host a ring (and only a ring). The bar length and width measurements used herein are made publicly available for others to use (http://data.galaxyzoo.org). ",
author = "Ben Hoyle and Masters, {Karen L.} and Nichol, {Robert C.} and Edmondson, {Edward M.} and Smith, {Arfon M.} and Chris Lintott and Ryan Scranton and Bamford, {Steven P.} and Kevin Schawinski and Daniel Thomas",
note = "{\textcopyright} 2011 The Authors Monthly Notices of the Royal Astronomical Society {\textcopyright} 2011 RAS",
year = "2011",
doi = "10.1111/j.1365-2966.2011.18979.x",
language = "English",
volume = "415",
pages = "3627--3640",
journal = "MNRAS",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - Galaxy Zoo

T2 - bar lengths in local disc galaxies

AU - Hoyle, Ben

AU - Masters, Karen L.

AU - Nichol, Robert C.

AU - Edmondson, Edward M.

AU - Smith, Arfon M.

AU - Lintott, Chris

AU - Scranton, Ryan

AU - Bamford, Steven P.

AU - Schawinski, Kevin

AU - Thomas, Daniel

N1 - © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS

PY - 2011

Y1 - 2011

N2 - We present an analysis of bar length measurements of 3150 local galaxies in a volume-limited sample of low-redshift (z < 0.06) disc galaxies. Barred galaxies were initially selected from the Galaxy Zoo 2 project, and the lengths and widths of the bars were manually drawn by members of the Galaxy Zoo community using a Google Maps interface. Bars were measured independently by different observers, multiple times per galaxy (≥3), and we find that observers were able to reproduce their own bar lengths to 3 per cent and each others’ to better than 20 per cent. We find a colour bimodality in our disc galaxy population with bar length, i.e. longer bars inhabit redder disc galaxies and the bars themselves are redder, and that the bluest galaxies host the smallest galactic bars (<5 h−1 kpc). We also find that bar and disc colours are clearly correlated, and for galaxies with small bars, the disc is, on average, redder than the bar colours, while for longer bars the bar then itself is redder, on average, than the disc. We further find that galaxies with a prominent bulge are more likely to host longer bars than those without bulges. We categorize our galaxy populations by how the bar and/or ring are connected to the spiral arms. We find that galaxies whose bars are directly connected to the spiral arms are preferentially bluer and that these galaxies host typically shorter bars. Within the scatter, we find that stronger bars are found in galaxies which host a ring (and only a ring). The bar length and width measurements used herein are made publicly available for others to use (http://data.galaxyzoo.org).

AB - We present an analysis of bar length measurements of 3150 local galaxies in a volume-limited sample of low-redshift (z < 0.06) disc galaxies. Barred galaxies were initially selected from the Galaxy Zoo 2 project, and the lengths and widths of the bars were manually drawn by members of the Galaxy Zoo community using a Google Maps interface. Bars were measured independently by different observers, multiple times per galaxy (≥3), and we find that observers were able to reproduce their own bar lengths to 3 per cent and each others’ to better than 20 per cent. We find a colour bimodality in our disc galaxy population with bar length, i.e. longer bars inhabit redder disc galaxies and the bars themselves are redder, and that the bluest galaxies host the smallest galactic bars (<5 h−1 kpc). We also find that bar and disc colours are clearly correlated, and for galaxies with small bars, the disc is, on average, redder than the bar colours, while for longer bars the bar then itself is redder, on average, than the disc. We further find that galaxies with a prominent bulge are more likely to host longer bars than those without bulges. We categorize our galaxy populations by how the bar and/or ring are connected to the spiral arms. We find that galaxies whose bars are directly connected to the spiral arms are preferentially bluer and that these galaxies host typically shorter bars. Within the scatter, we find that stronger bars are found in galaxies which host a ring (and only a ring). The bar length and width measurements used herein are made publicly available for others to use (http://data.galaxyzoo.org).

U2 - 10.1111/j.1365-2966.2011.18979.x

DO - 10.1111/j.1365-2966.2011.18979.x

M3 - Article

VL - 415

SP - 3627

EP - 3640

JO - MNRAS

JF - MNRAS

SN - 0035-8711

IS - 4

ER -

ID: 110137