The 2dF Galaxy Redshift Survey: spectral types and luminosity functions

S  Folkes; S  Ronen; I  Price; O  Lahav; M  Colless; S  Maddox; K  Deeley; K  Glazebrook; J  Bland-Hawthorn; R  Cannon; S  Cole; C  Collins; W  Couch; S P  Driver; G  Dalton; G  Efstathiou; R S  Ellis; C S  Frenk; N  Kaiser; I  Lewis; S  Lumsden; J  Peacock; B A  Peterson; W  Sutherland; K  Taylor

The 2dF Galaxy Redshift Survey: spectral types and luminosity functions

S Folkes, S Ronen, I Price, O Lahav, M Colless, S Maddox, K Deeley, K Glazebrook, J Bland-Hawthorn, R Cannon, S Cole, C Collins, W Couch, S P Driver, G Dalton, G Efstathiou, R S Ellis, C S Frenk, N Kaiser, I LewisS Lumsden, J Peacock, B A Peterson, W Sutherland, K Taylor

School of Physics and Astronomy

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

235 Citations (Scopus)

Abstract

We describe the 2dF Galaxy Redshift Survey (2dFGRS) and the current status of the observations, In this exploratory paper, we apply a principal component analysis to a preliminary sample of 5869 galaxy spectra and use the two most significant components to split the sample into five spectral classes. These classes are defined by considering visual classifications of a subset of the 2dF spectra, and also by comparison with high-quality spectra of local galaxies. We calculate a luminosity function for each of the different classes and find that later-type galaxies have a fainter characteristic magnitude, and a steeper faint-end slope. For the whole sample we find M* = -19.7 (for Ohm = 1, H-0 = 100 km s(-1) Mpc(-1)), alpha = -1.3, phi* = 0.017, For class 1 ('early-type') we find M* = -19.6; alpha = -0,7, while for class 5 ('late-type') we find M* = -19.0; alpha = -1,7, The derived 2dF luminosity functions agree well with other recent luminosity function estimates.

Original language	English
Pages (from-to)	459-472
Number of pages	14
Journal	Monthly Notices of the Royal Astronomical Society
Volume	308
Publication status	Published - 11 Sept 1999

Keywords

galaxies : distances and redshifts
galaxies : elliptical and lenticular, cD
galaxies : evolution
galaxies : formation
galaxies : stellar content
CLASSIFICATION
EVOLUTION
FIELD

Cite this

Folkes, S., Ronen, S., Price, I., Lahav, O., Colless, M., Maddox, S., Deeley, K., Glazebrook, K., Bland-Hawthorn, J., Cannon, R., Cole, S., Collins, C., Couch, W., Driver, S. P., Dalton, G., Efstathiou, G., Ellis, R. S., Frenk, C. S., Kaiser, N., ... Taylor, K. (1999). The 2dF Galaxy Redshift Survey: spectral types and luminosity functions. Monthly Notices of the Royal Astronomical Society, 308, 459-472.

@article{bbe1fa44bea746fea302b80cd76041d7,

title = "The 2dF Galaxy Redshift Survey: spectral types and luminosity functions",

abstract = "We describe the 2dF Galaxy Redshift Survey (2dFGRS) and the current status of the observations, In this exploratory paper, we apply a principal component analysis to a preliminary sample of 5869 galaxy spectra and use the two most significant components to split the sample into five spectral classes. These classes are defined by considering visual classifications of a subset of the 2dF spectra, and also by comparison with high-quality spectra of local galaxies. We calculate a luminosity function for each of the different classes and find that later-type galaxies have a fainter characteristic magnitude, and a steeper faint-end slope. For the whole sample we find M* = -19.7 (for Ohm = 1, H-0 = 100 km s(-1) Mpc(-1)), alpha = -1.3, phi* = 0.017, For class 1 ('early-type') we find M* = -19.6; alpha = -0,7, while for class 5 ('late-type') we find M* = -19.0; alpha = -1,7, The derived 2dF luminosity functions agree well with other recent luminosity function estimates.",

keywords = "galaxies : distances and redshifts, galaxies : elliptical and lenticular, cD, galaxies : evolution, galaxies : formation, galaxies : stellar content, CLASSIFICATION, EVOLUTION, FIELD",

author = "S Folkes and S Ronen and I Price and O Lahav and M Colless and S Maddox and K Deeley and K Glazebrook and J Bland-Hawthorn and R Cannon and S Cole and C Collins and W Couch and Driver, {S P} and G Dalton and G Efstathiou and Ellis, {R S} and Frenk, {C S} and N Kaiser and I Lewis and S Lumsden and J Peacock and Peterson, {B A} and W Sutherland and K Taylor",

year = "1999",

month = sep,

day = "11",

language = "English",

volume = "308",

pages = "459--472",

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

issn = "0035-8711",

publisher = "Oxford University Press",

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Folkes, S, Ronen, S, Price, I, Lahav, O, Colless, M, Maddox, S, Deeley, K, Glazebrook, K, Bland-Hawthorn, J, Cannon, R, Cole, S, Collins, C, Couch, W, Driver, SP, Dalton, G, Efstathiou, G, Ellis, RS, Frenk, CS, Kaiser, N, Lewis, I, Lumsden, S, Peacock, J, Peterson, BA, Sutherland, W & Taylor, K 1999, 'The 2dF Galaxy Redshift Survey: spectral types and luminosity functions', Monthly Notices of the Royal Astronomical Society, vol. 308, pp. 459-472.

TY - JOUR

T1 - The 2dF Galaxy Redshift Survey: spectral types and luminosity functions

AU - Folkes, S

AU - Ronen, S

AU - Price, I

AU - Lahav, O

AU - Colless, M

AU - Maddox, S

AU - Deeley, K

AU - Glazebrook, K

AU - Bland-Hawthorn, J

AU - Cannon, R

AU - Cole, S

AU - Collins, C

AU - Couch, W

AU - Driver, S P

AU - Dalton, G

AU - Efstathiou, G

AU - Ellis, R S

AU - Frenk, C S

AU - Kaiser, N

AU - Lewis, I

AU - Lumsden, S

AU - Peacock, J

AU - Peterson, B A

AU - Sutherland, W

AU - Taylor, K

PY - 1999/9/11

Y1 - 1999/9/11

N2 - We describe the 2dF Galaxy Redshift Survey (2dFGRS) and the current status of the observations, In this exploratory paper, we apply a principal component analysis to a preliminary sample of 5869 galaxy spectra and use the two most significant components to split the sample into five spectral classes. These classes are defined by considering visual classifications of a subset of the 2dF spectra, and also by comparison with high-quality spectra of local galaxies. We calculate a luminosity function for each of the different classes and find that later-type galaxies have a fainter characteristic magnitude, and a steeper faint-end slope. For the whole sample we find M* = -19.7 (for Ohm = 1, H-0 = 100 km s(-1) Mpc(-1)), alpha = -1.3, phi* = 0.017, For class 1 ('early-type') we find M* = -19.6; alpha = -0,7, while for class 5 ('late-type') we find M* = -19.0; alpha = -1,7, The derived 2dF luminosity functions agree well with other recent luminosity function estimates.

AB - We describe the 2dF Galaxy Redshift Survey (2dFGRS) and the current status of the observations, In this exploratory paper, we apply a principal component analysis to a preliminary sample of 5869 galaxy spectra and use the two most significant components to split the sample into five spectral classes. These classes are defined by considering visual classifications of a subset of the 2dF spectra, and also by comparison with high-quality spectra of local galaxies. We calculate a luminosity function for each of the different classes and find that later-type galaxies have a fainter characteristic magnitude, and a steeper faint-end slope. For the whole sample we find M* = -19.7 (for Ohm = 1, H-0 = 100 km s(-1) Mpc(-1)), alpha = -1.3, phi* = 0.017, For class 1 ('early-type') we find M* = -19.6; alpha = -0,7, while for class 5 ('late-type') we find M* = -19.0; alpha = -1,7, The derived 2dF luminosity functions agree well with other recent luminosity function estimates.

KW - galaxies : distances and redshifts

KW - galaxies : elliptical and lenticular, cD

KW - galaxies : evolution

KW - galaxies : formation

KW - galaxies : stellar content

KW - CLASSIFICATION

KW - EVOLUTION

KW - FIELD

UR - http://www.scopus.com/inward/record.url?scp=0042122998&partnerID=8YFLogxK

M3 - Article

SN - 0035-8711

VL - 308

SP - 459

EP - 472

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

The 2dF Galaxy Redshift Survey: spectral types and luminosity functions

Abstract

Keywords

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