A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z~0.8
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, a="" by="" combo-17.="" comparing="" complete="" estimates="" for="" from=&quo...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2006
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| _version_ | 1797082350871379968 |
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| author | Heymans, C Bell, E Rix, H Barden, M Borch, A Caldwell, J McIntosh, D Meisenheimer, K Peng, C Wolf, C Beckwith, S Haeussler, B Jahnke, K Jogee, S Sanchez, S Somerville, R Wisotzki, L |
| author_facet | Heymans, C Bell, E Rix, H Barden, M Borch, A Caldwell, J McIntosh, D Meisenheimer, K Peng, C Wolf, C Beckwith, S Haeussler, B Jahnke, K Jogee, S Sanchez, S Somerville, R Wisotzki, L |
| author_sort | Heymans, C |
| collection | OXFORD |
| description | 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, a="" by="" combo-17.="" comparing="" complete="" estimates="" for="" from="" galaxies="" lensing="" log(m_star="" m_\odot)="" m_star="" m_vir="" mass="" measurements="" of="" sample="" stellar="" to="" virial="" weak="" with=""> 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 Omega_b^*/\Omega_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.</z<0.8,> |
| first_indexed | 2024-03-07T01:26:57Z |
| format | Journal article |
| id | oxford-uuid:924d6e0e-bd1a-4ec7-b56a-9c196a14d82e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:26:57Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:924d6e0e-bd1a-4ec7-b56a-9c196a14d82e2022-03-26T23:24:28ZA weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z~0.8Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:924d6e0e-bd1a-4ec7-b56a-9c196a14d82eEnglishSymplectic Elements at Oxford2006Heymans, CBell, ERix, HBarden, MBorch, ACaldwell, JMcIntosh, DMeisenheimer, KPeng, CWolf, CBeckwith, SHaeussler, BJahnke, KJogee, SSanchez, SSomerville, RWisotzki, LWe 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, a="" by="" combo-17.="" comparing="" complete="" estimates="" for="" from="" galaxies="" lensing="" log(m_star="" m_\odot)="" m_star="" m_vir="" mass="" measurements="" of="" sample="" stellar="" to="" virial="" weak="" with=""> 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 Omega_b^*/\Omega_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.</z<0.8,> |
| spellingShingle | Heymans, C Bell, E Rix, H Barden, M Borch, A Caldwell, J McIntosh, D Meisenheimer, K Peng, C Wolf, C Beckwith, S Haeussler, B Jahnke, K Jogee, S Sanchez, S Somerville, R Wisotzki, L A weak lensing estimate from GEMS of the virial to stellar mass ratio in massive galaxies to z~0.8 |
| title | A weak lensing estimate from GEMS of the virial to stellar mass ratio in
massive galaxies to z~0.8 |
| title_full | A weak lensing estimate from GEMS of the virial to stellar mass ratio in
massive galaxies to z~0.8 |
| title_fullStr | A weak lensing estimate from GEMS of the virial to stellar mass ratio in
massive galaxies to z~0.8 |
| title_full_unstemmed | A weak lensing estimate from GEMS of the virial to stellar mass ratio in
massive galaxies to z~0.8 |
| title_short | A weak lensing estimate from GEMS of the virial to stellar mass ratio in
massive galaxies to z~0.8 |
| title_sort | weak lensing estimate from gems of the virial to stellar mass ratio in massive galaxies to z 0 8 |
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