Galaxy and Mass Assembly (GAMA): The red fraction and radial distribution of satellite galaxies

Matthew Prescott; I. K. Baldry; P. A. James; S. P. Bamford; J. Bland-Hawthorn; S. Brough; M. J I Brown; E. Cameron; C. J. Conselice; S. M. Croom; S. P. Driver; C. S. Frenk; M. Gunawardhana; D. T. Hill; A. M. Hopkins; D. H. Jones; L. S. Kelvin; K. Kuijken; J. Liske; J. Loveday; R. C. Nichol; P. Norberg; H. R. Parkinson; J. A. Peacock; S. Phillipps; K. A. Pimbblet; C. C. Popescu; A. S G Robotham; R. G. Sharp; W. J. Sutherland; E. N. Taylor; R. J. Tuffs; E. van Kampen; D. Wijesinghe

doi:10.1111/j.1365-2966.2011.19353.x

Galaxy and Mass Assembly (GAMA): The red fraction and radial distribution of satellite galaxies

Matthew Prescott^*, I. K. Baldry, P. A. James, S. P. Bamford, J. Bland-Hawthorn, S. Brough, M. J I Brown, E. Cameron, C. J. Conselice, S. M. Croom, S. P. Driver, C. S. Frenk, M. Gunawardhana, D. T. Hill, A. M. Hopkins, D. H. Jones, L. S. Kelvin, K. Kuijken, J. Liske, J. LovedayR. C. Nichol, P. Norberg, H. R. Parkinson, J. A. Peacock, S. Phillipps, K. A. Pimbblet, C. C. Popescu, A. S G Robotham, R. G. Sharp, W. J. Sutherland, E. N. Taylor, R. J. Tuffs, E. van Kampen, D. Wijesinghe

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

We investigate the properties of satellite galaxies that surround isolated hosts within the redshift range 0.01 < z < 0.15, using data taken as part of the Galaxy And Mass Assembly survey. Making use of isolation and satellite criteria that take into account stellar mass estimates, we find 3514 isolated galaxies of which 1426 host a total of 2998 satellites. Separating the red and blue populations of satellites and hosts, using colour-mass diagrams, we investigate the radial distribution of satellite galaxies and determine how the red fraction of satellites varies as a function of satellite mass, host mass and the projected distance from their host. Comparing the red fraction of satellites to a control sample of small neighbours at greater projected radii, we show that the increase in red fraction is primarily a function of host mass. The satellite red fraction is about 0.2 higher than the control sample for hosts with, while the red fractions show no difference for hosts with. For the satellites of more massive hosts, the red fraction also increases as a function of decreasing projected distance. Our results suggest that the likely main mechanism for the quenching of star formation in satellites hosted by isolated galaxies is strangulation.

Original language	English
Pages (from-to)	1374-1386
Number of pages	13
Journal	Monthly Notices of the Royal Astronomical Society
Volume	417
Issue number	2
DOIs	https://doi.org/10.1111/j.1365-2966.2011.19353.x
Publication status	Published - Oct 2011
Externally published	Yes

Keywords

Galaxies: dwarf
Galaxies: evolution
Galaxies: formation
Galaxies: interactions
Galaxies: star formation
Surveys

Access to Document

10.1111/j.1365-2966.2011.19353.x

Cite this

Prescott, M., Baldry, I. K., James, P. A., Bamford, S. P., Bland-Hawthorn, J., Brough, S., Brown, M. J. I., Cameron, E., Conselice, C. J., Croom, S. M., Driver, S. P., Frenk, C. S., Gunawardhana, M., Hill, D. T., Hopkins, A. M., Jones, D. H., Kelvin, L. S., Kuijken, K., Liske, J., ... Wijesinghe, D. (2011). Galaxy and Mass Assembly (GAMA): The red fraction and radial distribution of satellite galaxies. Monthly Notices of the Royal Astronomical Society, 417(2), 1374-1386. https://doi.org/10.1111/j.1365-2966.2011.19353.x

@article{13ba7e5b16cc4393bd1a85e95c146594,

title = "Galaxy and Mass Assembly (GAMA): The red fraction and radial distribution of satellite galaxies",

abstract = "We investigate the properties of satellite galaxies that surround isolated hosts within the redshift range 0.01 < z < 0.15, using data taken as part of the Galaxy And Mass Assembly survey. Making use of isolation and satellite criteria that take into account stellar mass estimates, we find 3514 isolated galaxies of which 1426 host a total of 2998 satellites. Separating the red and blue populations of satellites and hosts, using colour-mass diagrams, we investigate the radial distribution of satellite galaxies and determine how the red fraction of satellites varies as a function of satellite mass, host mass and the projected distance from their host. Comparing the red fraction of satellites to a control sample of small neighbours at greater projected radii, we show that the increase in red fraction is primarily a function of host mass. The satellite red fraction is about 0.2 higher than the control sample for hosts with, while the red fractions show no difference for hosts with. For the satellites of more massive hosts, the red fraction also increases as a function of decreasing projected distance. Our results suggest that the likely main mechanism for the quenching of star formation in satellites hosted by isolated galaxies is strangulation.",

keywords = "Galaxies: dwarf, Galaxies: evolution, Galaxies: formation, Galaxies: interactions, Galaxies: star formation, Surveys",

author = "Matthew Prescott and Baldry, {I. K.} and James, {P. A.} and Bamford, {S. P.} and J. Bland-Hawthorn and S. Brough and Brown, {M. J I} and E. Cameron and Conselice, {C. J.} and Croom, {S. M.} and Driver, {S. P.} and Frenk, {C. S.} and M. Gunawardhana and Hill, {D. T.} and Hopkins, {A. M.} and Jones, {D. H.} and Kelvin, {L. S.} and K. Kuijken and J. Liske and J. Loveday and Nichol, {R. C.} and P. Norberg and Parkinson, {H. R.} and Peacock, {J. A.} and S. Phillipps and Pimbblet, {K. A.} and Popescu, {C. C.} and Robotham, {A. S G} and Sharp, {R. G.} and Sutherland, {W. J.} and Taylor, {E. N.} and Tuffs, {R. J.} and {van Kampen}, E. and D. Wijesinghe",

year = "2011",

month = oct,

doi = "10.1111/j.1365-2966.2011.19353.x",

language = "English",

volume = "417",

pages = "1374--1386",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

Prescott, M, Baldry, IK, James, PA, Bamford, SP, Bland-Hawthorn, J, Brough, S, Brown, MJI, Cameron, E, Conselice, CJ, Croom, SM, Driver, SP, Frenk, CS, Gunawardhana, M, Hill, DT, Hopkins, AM, Jones, DH, Kelvin, LS, Kuijken, K, Liske, J, Loveday, J, Nichol, RC, Norberg, P, Parkinson, HR, Peacock, JA, Phillipps, S, Pimbblet, KA, Popescu, CC, Robotham, ASG, Sharp, RG, Sutherland, WJ, Taylor, EN, Tuffs, RJ, van Kampen, E & Wijesinghe, D 2011, 'Galaxy and Mass Assembly (GAMA): The red fraction and radial distribution of satellite galaxies', Monthly Notices of the Royal Astronomical Society, vol. 417, no. 2, pp. 1374-1386. https://doi.org/10.1111/j.1365-2966.2011.19353.x

TY - JOUR

T1 - Galaxy and Mass Assembly (GAMA)

T2 - The red fraction and radial distribution of satellite galaxies

AU - Prescott, Matthew

AU - Baldry, I. K.

AU - James, P. A.

AU - Bamford, S. P.

AU - Bland-Hawthorn, J.

AU - Brough, S.

AU - Brown, M. J I

AU - Cameron, E.

AU - Conselice, C. J.

AU - Croom, S. M.

AU - Driver, S. P.

AU - Frenk, C. S.

AU - Gunawardhana, M.

AU - Hill, D. T.

AU - Hopkins, A. M.

AU - Jones, D. H.

AU - Kelvin, L. S.

AU - Kuijken, K.

AU - Liske, J.

AU - Loveday, J.

AU - Nichol, R. C.

AU - Norberg, P.

AU - Parkinson, H. R.

AU - Peacock, J. A.

AU - Phillipps, S.

AU - Pimbblet, K. A.

AU - Popescu, C. C.

AU - Robotham, A. S G

AU - Sharp, R. G.

AU - Sutherland, W. J.

AU - Taylor, E. N.

AU - Tuffs, R. J.

AU - van Kampen, E.

AU - Wijesinghe, D.

PY - 2011/10

Y1 - 2011/10

N2 - We investigate the properties of satellite galaxies that surround isolated hosts within the redshift range 0.01 < z < 0.15, using data taken as part of the Galaxy And Mass Assembly survey. Making use of isolation and satellite criteria that take into account stellar mass estimates, we find 3514 isolated galaxies of which 1426 host a total of 2998 satellites. Separating the red and blue populations of satellites and hosts, using colour-mass diagrams, we investigate the radial distribution of satellite galaxies and determine how the red fraction of satellites varies as a function of satellite mass, host mass and the projected distance from their host. Comparing the red fraction of satellites to a control sample of small neighbours at greater projected radii, we show that the increase in red fraction is primarily a function of host mass. The satellite red fraction is about 0.2 higher than the control sample for hosts with, while the red fractions show no difference for hosts with. For the satellites of more massive hosts, the red fraction also increases as a function of decreasing projected distance. Our results suggest that the likely main mechanism for the quenching of star formation in satellites hosted by isolated galaxies is strangulation.

AB - We investigate the properties of satellite galaxies that surround isolated hosts within the redshift range 0.01 < z < 0.15, using data taken as part of the Galaxy And Mass Assembly survey. Making use of isolation and satellite criteria that take into account stellar mass estimates, we find 3514 isolated galaxies of which 1426 host a total of 2998 satellites. Separating the red and blue populations of satellites and hosts, using colour-mass diagrams, we investigate the radial distribution of satellite galaxies and determine how the red fraction of satellites varies as a function of satellite mass, host mass and the projected distance from their host. Comparing the red fraction of satellites to a control sample of small neighbours at greater projected radii, we show that the increase in red fraction is primarily a function of host mass. The satellite red fraction is about 0.2 higher than the control sample for hosts with, while the red fractions show no difference for hosts with. For the satellites of more massive hosts, the red fraction also increases as a function of decreasing projected distance. Our results suggest that the likely main mechanism for the quenching of star formation in satellites hosted by isolated galaxies is strangulation.

KW - Galaxies: dwarf

KW - Galaxies: evolution

KW - Galaxies: formation

KW - Galaxies: interactions

KW - Galaxies: star formation

KW - Surveys

UR - http://www.scopus.com/inward/record.url?scp=80053593807&partnerID=8YFLogxK

U2 - 10.1111/j.1365-2966.2011.19353.x

DO - 10.1111/j.1365-2966.2011.19353.x

M3 - Article

AN - SCOPUS:80053593807

SN - 0035-8711

VL - 417

SP - 1374

EP - 1386

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

Galaxy and Mass Assembly (GAMA): The red fraction and radial distribution of satellite galaxies

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this