The Luminosity–Metallicity relation of distant luminous infrared galaxies

Liang, Y. C.; Hammer, F.; Flores, H.; Elbaz, D.; Marcillac, D.; Césarsky, C. J.

doi:10.1051/0004-6361:20035740

Cited by 65 publications

(133 citation statements)

References 70 publications

(177 reference statements)

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“…13 for disk galaxy formation is also supported by metallicity investigation of LIRGs by Liang et al (2003). They found that, on average, the metal abundance of LIRGs is less than half that of the local disks with comparable brightness.…”

Section: Central Color Versus Concentration Indexmentioning

confidence: 71%

HST/WFPC2 morphologies and color maps of distant luminous infrared galaxies

Zheng

Hammer

Flores

et al. 2004

A&A

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Abstract. Using HST/WFPC2 imaging in F606W (or F450W) and F814W filters, we obtained the color maps in observed frame for 36 distant (0.4 < z < 1.2) luminous infrared galaxies (LIRGs, L IR (8−1000 µm) ≥ 10 11 L ), with average star formation rates of ∼100 M yr −1 . Stars and compact sources are taken as references to align images after correction of geometric distortion. This leads to an alignment accuracy of 0.15 pixel, which is a prerequisite for studying the detailed color properties of galaxies with complex morphologies. A new method is developed to quantify the reliability of each pixel in the color map without any bias against very red or blue color regions. Based on analyses of two-dimensional structure and spatially resolved color distribution, we carried out morphological classification for LIRGs. About 36% of the LIRGs were classified as disk galaxies and 22% as irregulars. Only 6 (17%) systems are obvious ongoing major mergers. An upper limit of 58% was found for the fraction of mergers in LIRGs with all the possible merging/interacting systems included. Strikingly, the fraction of compact sources is as high as 25%, similar to that found in optically selected samples. From their K band luminosities, LIRGs are relatively massive systems, with an average stellar mass of about 1.1 × 10 11 M . They are related to the formation of massive and large disks, from their morphologies and also from the fact that they represent a significant fraction of distant disks selected by their sizes. If sustained at such large rates, their star formation can double their stellar masses in less than 1 Gyr. The compact LIRGs show blue cores, which could be associated with the formation of the central region of these galaxies. We find that all LIRGs are distributed along a sequence which relate their central color to their concentration index. This sequence links compact objects with blue central color to extended ones with relatively red central color, which are closer to the local disks. We suggest that there are many massive disks which have been forming a large fraction of their stellar mass since z = 1. For most of them, their central parts (bulge?) were formed prior to the formation of their disks.

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Section: Central Color Versus Concentration Indexmentioning

confidence: 71%

HST/WFPC2 morphologies and color maps of distant luminous infrared galaxies

Zheng

Hammer

Flores

et al. 2004

A&A

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“…The galaxies with the lowest metallicities could be found more easily among the H ii regions with high EW(Hβ). luminous infrared galaxies (LIRGs) at z ∼ 0.3-0.8 taken from the sample of Liang et al (2004) (O/H derived with the empirical method); and, finally; h) the large dotted rectangle depicts the position of Lyman break galaxies (LBGs, Pettini et al 2001) …”

Section: Comparison Of Our Sample With Other Datamentioning

confidence: 99%

An investigation of the luminosity-metallicity relation for a large sample of low-metallicity emission-line galaxies

Гусева

Papaderos

Meyer

et al. 2009

A&A

103

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Context. We present 8.2 m VLT spectroscopic observations of 28 H ii regions in 16 emission-line galaxies and 3.6 m ESO telescope spectroscopic observations of 38 H ii regions in 28 emission-line galaxies. These emission-line galaxies were selected mainly from the data release 6 (DR6) of the Sloan digital sky survey (SDSS) as metal-deficient galaxy candidates. Aims. We collect photometric and high-quality spectroscopic data for a large uniform sample of star forming galaxies including new observations. Our aim is to study the luminosity-metallicity (L − Z) relation for nearby galaxies, especially at its low-metallicity end and compare it with that for higher-redshift galaxies.Methods. Physical conditions and element abundances in the new sample are derived with the T e -method, excluding six H ii regions from the VLT observations and nearly two third of the H ii regions from the 3.6 m observations. Element abundances for the latter galaxies were derived with the semiempirical strong-line method.Results. From our new observations we find that the oxygen abundance in 61 out of the 66 H ii regions of our sample ranges from 12 + log O/H = 7.05 to 8.22. Our sample includes 27 new galaxies with 12 + log O/H < 7.6 which qualify as extremely metal-poor star-forming galaxies (XBCDs). Among them are 10 H ii regions with 12 + log O/H < 7.3. The new sample is combined with a further 93 low-metallicity galaxies with accurate oxygen abundance determinations from our previous studies, yielding in total a high-quality spectroscopic data set of 154 H ii regions. 9000 more galaxies with oxygen abundances, based mainly on the T e -method, are compiled from the SDSS. Photometric data for all galaxies of our combined sample are taken from the SDSS database while distances are from the NED. Our data set spans a range of 8 mag with respect to its absolute magnitude in SDSS g (-12 > ∼ M g > ∼ −20) and nearly 2 dex in its oxygen abundance (7.0 < ∼ 12 + log O/H < ∼ 8.8), allowing us to probe the L − Z relation in the nearby universe down to the lowest currently studied metallicity level. The L − Z relation established on the basis of the present sample is consistent with previous ones obtained for emission-line galaxies.

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“…1. This set of galaxies was extracted from a larger sample of ISOCAM selected galaxies for which medium resolution (R = 1200) VLT-FORS2 spectra were obtained (Liang et al 2004) in the "Marano FIRBACK" field. Oxygen abundances were obtained for half of them with values of 12 + log(O/H) ranging from 8.4 to 9.…”

Section: Sample Selection and Data Reductionmentioning

confidence: 99%

“…The label indicates the logarithm of the IR luminosity as well as the redshift and ID of each source, e.g. ID #4 is the galaxy UDSF04 in Liang et al (2004). The filled circles are the luminosities that would be measured in both filters for the plotted SED from the library of template SEDs of Chary & Elbaz (2001).…”

Section: And Their Associated Mir Luminosities (Filled Circles)mentioning

confidence: 99%

Observational evidence for the presence of PAHs in distant Luminous Infrared Galaxies using ISO and Spitzer

Elbaz

Floc’h

Dole

et al. 2005

A&A

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Abstract. We present ISOCAM 15 µm and MIPS 24 µm photometry of a sample of 16 distant Luminous Infrared Galaxies (LIRGs) characterized by a median luminosity L IR ∼ 2 × 10 11 L and redshift z = 0.7 (distributed from z = 0.1 to 1.2). While some sources display 24/15 µm flux ratios also consistent with a featureless continuum dominating their mid-infrared (MIR) spectral energy distributions (SEDs), the presence of prominent emission features such as the Polycyclic Aromatic Hydrocarbons is clearly required to explain the observed colors for more than half of the sample. As a result, a general good agreement is observed between the data and predictions from the local starburst-dominated SEDs that have been used so far to constrain IR galaxy evolution. This is consistent with the star-forming nature of LIRGs derived from previous works, even though our approach cannot rule out the dominance of an AGN in some cases. Our study also supports the possibility of tracing the total IR luminosity of distant galaxies (up to z ∼ 1) from their MIR emission.

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The Luminosity–Metallicity relation of distant luminous infrared galaxies

Cited by 65 publications

References 70 publications

HST/WFPC2 morphologies and color maps of distant luminous infrared galaxies

HST/WFPC2 morphologies and color maps of distant luminous infrared galaxies

An investigation of the luminosity-metallicity relation for a large sample of low-metallicity emission-line galaxies

Observational evidence for the presence of PAHs in distant Luminous Infrared Galaxies using ISO and Spitzer

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