A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z ~ 0.8

Catherine Heymans; Eric F. Bell; Hans Walter Rix; Marco Barden; Andrea Borch; John A.R. Caldwell; Daniel H. McIntosh; Klaus Meisenheimer; Chien Y. Peng; Christian Wolf; Steven V.W. Beckwith; Boris Häußler; Knud Jahnke; Shardha Jogee; Sebastian F. Sánchez; Rachel Somerville; Lutz Wisotzki

doi:10.1111/j.1745-3933.2006.00208.x

A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z ~ 0.8

Catherine Heymans^*, Eric F. Bell, Hans Walter Rix, Marco Barden, Andrea Borch, John A.R. Caldwell, Daniel H. McIntosh, Klaus Meisenheimer, Chien Y. Peng, Christian Wolf, Steven V.W. Beckwith, Boris Häußler, Knud Jahnke, Shardha Jogee, Sebastian F. Sánchez, Rachel Somerville, Lutz Wisotzki

^*Corresponding author for this work

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

54 Citations (Scopus)

Abstract

We present constraints on the evolution of the virial to stellar mass ratio of galaxies with high stellar masses in the redshift range 0.2 < z < 0.8, by comparing weak lensing measurements of virial mass M_vir with estimates of stellar mass M_star. For a complete sample of galaxies with log (M_star/M_⊙) > 10.5, where the majority show an early-type morphology, we find that the virial mass to stellar mass ratio is given by M_vir/M_star = 53⁺¹³_-16. Assuming a baryon fraction from the concordance cosmology, this corresponds to a stellar fraction of baryons in massive galaxies of Ω_b^*/Ω_b = 0.10 ± 0.03. Analysing the galaxy sample in different redshift slices, we find little or no evolution in the virial to stellar mass ratio, and place an upper limit of ~2.5 on the growth of massive galaxies through the conversion of gas into stars from z = 0.8 to the present day.

Original language	English
Pages (from-to)	L60-L64
Number of pages	5
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Volume	371
Issue number	1
DOIs	https://doi.org/10.1111/j.1745-3933.2006.00208.x
Publication status	Published - Sept 2006
Externally published	Yes

Access to Document

10.1111/j.1745-3933.2006.00208.x

Cite this

Heymans, C., Bell, E. F., Rix, H. W., Barden, M., Borch, A., Caldwell, J. A. R., McIntosh, D. H., Meisenheimer, K., Peng, C. Y., Wolf, C., Beckwith, S. V. W., Häußler, B., Jahnke, K., Jogee, S., Sánchez, S. F., Somerville, R., & Wisotzki, L. (2006). A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z ~ 0.8. Monthly Notices of the Royal Astronomical Society: Letters, 371(1), L60-L64. https://doi.org/10.1111/j.1745-3933.2006.00208.x

@article{d07b130058a549a1a4f4aa9a3b1f009f,

title = "A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z \textasciitilde{} 0.8",

abstract = "We present constraints on the evolution of the virial to stellar mass ratio of galaxies with high stellar masses in the redshift range 0.2 < z < 0.8, by comparing weak lensing measurements of virial mass Mvir with estimates of stellar mass Mstar. For a complete sample of galaxies with log (Mstar/M⊙) > 10.5, where the majority show an early-type morphology, we find that the virial mass to stellar mass ratio is given by Mvir/Mstar = 53+13-16. Assuming a baryon fraction from the concordance cosmology, this corresponds to a stellar fraction of baryons in massive galaxies of Ωb*/Ωb = 0.10 ± 0.03. Analysing the galaxy sample in different redshift slices, we find little or no evolution in the virial to stellar mass ratio, and place an upper limit of \textasciitilde{}2.5 on the growth of massive galaxies through the conversion of gas into stars from z = 0.8 to the present day.",

keywords = "Cosmology: observations, Galaxies: evolution, Galaxies: general, Galaxies: haloes, Gravitational lensing",

author = "Catherine Heymans and Bell, \{Eric F.\} and Rix, \{Hans Walter\} and Marco Barden and Andrea Borch and Caldwell, \{John A.R.\} and McIntosh, \{Daniel H.\} and Klaus Meisenheimer and Peng, \{Chien Y.\} and Christian Wolf and Beckwith, \{Steven V.W.\} and Boris H{\"a}u{\ss}ler and Knud Jahnke and Shardha Jogee and S{\'a}nchez, \{Sebastian F.\} and Rachel Somerville and Lutz Wisotzki",

year = "2006",

month = sep,

doi = "10.1111/j.1745-3933.2006.00208.x",

language = "English",

volume = "371",

pages = "L60--L64",

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

issn = "1745-3925",

publisher = "Oxford University Press ",

number = "1",

}

Heymans, C, Bell, EF, Rix, HW, Barden, M, Borch, A, Caldwell, JAR, McIntosh, DH, Meisenheimer, K, Peng, CY, Wolf, C, Beckwith, SVW, Häußler, B, Jahnke, K, Jogee, S, Sánchez, SF, Somerville, R & Wisotzki, L 2006, 'A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z ~ 0.8', Monthly Notices of the Royal Astronomical Society: Letters, vol. 371, no. 1, pp. L60-L64. https://doi.org/10.1111/j.1745-3933.2006.00208.x

TY - JOUR

T1 - A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z ~ 0.8

AU - Heymans, Catherine

AU - Bell, Eric F.

AU - Rix, Hans Walter

AU - Barden, Marco

AU - Borch, Andrea

AU - Caldwell, John A.R.

AU - McIntosh, Daniel H.

AU - Meisenheimer, Klaus

AU - Peng, Chien Y.

AU - Wolf, Christian

AU - Beckwith, Steven V.W.

AU - Häußler, Boris

AU - Jahnke, Knud

AU - Jogee, Shardha

AU - Sánchez, Sebastian F.

AU - Somerville, Rachel

AU - Wisotzki, Lutz

PY - 2006/9

Y1 - 2006/9

N2 - We present constraints on the evolution of the virial to stellar mass ratio of galaxies with high stellar masses in the redshift range 0.2 < z < 0.8, by comparing weak lensing measurements of virial mass Mvir with estimates of stellar mass Mstar. For a complete sample of galaxies with log (Mstar/M⊙) > 10.5, where the majority show an early-type morphology, we find that the virial mass to stellar mass ratio is given by Mvir/Mstar = 53+13-16. Assuming a baryon fraction from the concordance cosmology, this corresponds to a stellar fraction of baryons in massive galaxies of Ωb*/Ωb = 0.10 ± 0.03. Analysing the galaxy sample in different redshift slices, we find little or no evolution in the virial to stellar mass ratio, and place an upper limit of ~2.5 on the growth of massive galaxies through the conversion of gas into stars from z = 0.8 to the present day.

AB - We present constraints on the evolution of the virial to stellar mass ratio of galaxies with high stellar masses in the redshift range 0.2 < z < 0.8, by comparing weak lensing measurements of virial mass Mvir with estimates of stellar mass Mstar. For a complete sample of galaxies with log (Mstar/M⊙) > 10.5, where the majority show an early-type morphology, we find that the virial mass to stellar mass ratio is given by Mvir/Mstar = 53+13-16. Assuming a baryon fraction from the concordance cosmology, this corresponds to a stellar fraction of baryons in massive galaxies of Ωb*/Ωb = 0.10 ± 0.03. Analysing the galaxy sample in different redshift slices, we find little or no evolution in the virial to stellar mass ratio, and place an upper limit of ~2.5 on the growth of massive galaxies through the conversion of gas into stars from z = 0.8 to the present day.

KW - Cosmology: observations

KW - Galaxies: evolution

KW - Galaxies: general

KW - Galaxies: haloes

KW - Gravitational lensing

UR - http://www.scopus.com/inward/record.url?scp=33846378710&partnerID=8YFLogxK

U2 - 10.1111/j.1745-3933.2006.00208.x

DO - 10.1111/j.1745-3933.2006.00208.x

M3 - Letter

SN - 1745-3925

VL - 371

SP - L60-L64

JO - Monthly Notices of the Royal Astronomical Society: Letters

JF - Monthly Notices of the Royal Astronomical Society: Letters

IS - 1

ER -

A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z ~ 0.8

Abstract

Access to Document

Other files and links

Fingerprint

Cite this