The low-mass end of the fundamental relation for gravitationally lensed star-forming galaxies at 1 < z < 6

Lise Bech Christensen; Johan Richard; Jens Hjorth; Bo Milvang-Jensen; Peter Laursen; Claudio Grillo; M. Dessauge-Zavadsky; Marceau Karim Emile Limousin; Harald Ebeling

doi:10.1111/j.1365-2966.2012.22006.x

The low-mass end of the fundamental relation for gravitationally lensed star-forming galaxies at 1 < z < 6

Lise Bech Christensen, Johan Richard, Jens Hjorth, Bo Milvang-Jensen, Peter Laursen, Claudio Grillo, M. Dessauge-Zavadsky, Marceau Karim Emile Limousin, Harald Ebeling

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Abstract

We present Very Large Telescope/X-shooter spectra of 13 galaxies in the redshift range 1 ≲ z ≲ 6, which are strongly lensed by massive galaxy clusters. Spectroscopic redshifts are measured for nine galaxies, while three sources have redshifts determined from continuum breaks in their spectra. The stellar masses of the galaxies span four orders of magnitude between 10 ⁷ and 10 ¹¹M _⊙ and have luminosities at 1500Å rest frame between 0.004 and 9L*after correcting for the magnification. This allows us to probe a variety of galaxy types from young, low-mass starburst galaxies to massive evolved galaxies. The lensed galaxies with stellar masses less than 10 ¹⁰M _⊙ have a large scatter compared to the fundamental relation between stellar mass, star formation rates and oxygen abundances. We provide a modified fit to the fundamental relation for low-mass, low-metallicity galaxies with a weaker dependence of the metallicity on either the star formation rate or stellar mass compared to low-redshift, high-mass and high-metallicity Sloan Digital Sky Survey galaxies.

Original language	English
Journal	Monthly Notices of the Royal Astronomical Society
Volume	427
Issue number	3
Pages (from-to)	1953-1972
Number of pages	15
ISSN	0035-8711
DOIs	https://doi.org/10.1111/j.1365-2966.2012.22006.x
Publication status	Published - 11 Dec 2012

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Christensen, L. B., Richard, J., Hjorth, J., Milvang-Jensen, B., Laursen, P., Grillo, C., Dessauge-Zavadsky, M., Limousin, M. K. E., & Ebeling, H. (2012). The low-mass end of the fundamental relation for gravitationally lensed star-forming galaxies at 1 < z < 6. Monthly Notices of the Royal Astronomical Society, 427(3), 1953-1972. https://doi.org/10.1111/j.1365-2966.2012.22006.x

Christensen, LB, Richard, J, Hjorth, J, Milvang-Jensen, B, Laursen, P, Grillo, C, Dessauge-Zavadsky, M, Limousin, MKE & Ebeling, H 2012, 'The low-mass end of the fundamental relation for gravitationally lensed star-forming galaxies at 1 < z < 6', Monthly Notices of the Royal Astronomical Society, vol. 427, no. 3, pp. 1953-1972. https://doi.org/10.1111/j.1365-2966.2012.22006.x

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title = "The low-mass end of the fundamental relation for gravitationally lensed star-forming galaxies at 1 < z < 6",

abstract = "We present Very Large Telescope/X-shooter spectra of 13 galaxies in the redshift range 1 ≲ z ≲ 6, which are strongly lensed by massive galaxy clusters. Spectroscopic redshifts are measured for nine galaxies, while three sources have redshifts determined from continuum breaks in their spectra. The stellar masses of the galaxies span four orders of magnitude between 10 7 and 10 11M ⊙ and have luminosities at 1500{\AA} rest frame between 0.004 and 9L*after correcting for the magnification. This allows us to probe a variety of galaxy types from young, low-mass starburst galaxies to massive evolved galaxies. The lensed galaxies with stellar masses less than 10 10M ⊙ have a large scatter compared to the fundamental relation between stellar mass, star formation rates and oxygen abundances. We provide a modified fit to the fundamental relation for low-mass, low-metallicity galaxies with a weaker dependence of the metallicity on either the star formation rate or stellar mass compared to low-redshift, high-mass and high-metallicity Sloan Digital Sky Survey galaxies.",

author = "Christensen, {Lise Bech} and Johan Richard and Jens Hjorth and Bo Milvang-Jensen and Peter Laursen and Claudio Grillo and M. Dessauge-Zavadsky and Limousin, {Marceau Karim Emile} and Harald Ebeling",

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doi = "10.1111/j.1365-2966.2012.22006.x",

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T1 - The low-mass end of the fundamental relation for gravitationally lensed star-forming galaxies at 1 < z < 6

AU - Christensen, Lise Bech

AU - Richard, Johan

AU - Hjorth, Jens

AU - Milvang-Jensen, Bo

AU - Laursen, Peter

AU - Grillo, Claudio

AU - Dessauge-Zavadsky, M.

AU - Limousin, Marceau Karim Emile

AU - Ebeling, Harald

PY - 2012/12/11

Y1 - 2012/12/11

N2 - We present Very Large Telescope/X-shooter spectra of 13 galaxies in the redshift range 1 ≲ z ≲ 6, which are strongly lensed by massive galaxy clusters. Spectroscopic redshifts are measured for nine galaxies, while three sources have redshifts determined from continuum breaks in their spectra. The stellar masses of the galaxies span four orders of magnitude between 10 7 and 10 11M ⊙ and have luminosities at 1500Å rest frame between 0.004 and 9L*after correcting for the magnification. This allows us to probe a variety of galaxy types from young, low-mass starburst galaxies to massive evolved galaxies. The lensed galaxies with stellar masses less than 10 10M ⊙ have a large scatter compared to the fundamental relation between stellar mass, star formation rates and oxygen abundances. We provide a modified fit to the fundamental relation for low-mass, low-metallicity galaxies with a weaker dependence of the metallicity on either the star formation rate or stellar mass compared to low-redshift, high-mass and high-metallicity Sloan Digital Sky Survey galaxies.

AB - We present Very Large Telescope/X-shooter spectra of 13 galaxies in the redshift range 1 ≲ z ≲ 6, which are strongly lensed by massive galaxy clusters. Spectroscopic redshifts are measured for nine galaxies, while three sources have redshifts determined from continuum breaks in their spectra. The stellar masses of the galaxies span four orders of magnitude between 10 7 and 10 11M ⊙ and have luminosities at 1500Å rest frame between 0.004 and 9L*after correcting for the magnification. This allows us to probe a variety of galaxy types from young, low-mass starburst galaxies to massive evolved galaxies. The lensed galaxies with stellar masses less than 10 10M ⊙ have a large scatter compared to the fundamental relation between stellar mass, star formation rates and oxygen abundances. We provide a modified fit to the fundamental relation for low-mass, low-metallicity galaxies with a weaker dependence of the metallicity on either the star formation rate or stellar mass compared to low-redshift, high-mass and high-metallicity Sloan Digital Sky Survey galaxies.

U2 - 10.1111/j.1365-2966.2012.22006.x

DO - 10.1111/j.1365-2966.2012.22006.x

M3 - Journal article

SN - 0035-8711

VL - 427

SP - 1953

EP - 1972

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

IS - 3

ER -

The low-mass end of the fundamental relation for gravitationally lensed star-forming galaxies at 1 < z < 6

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