AustralieFrV1, Istex, Curation, bibRecord, 000F26

Photometric selection of emission-line galaxies, clustering analysis and a search for the integrated Sachs–Wolfe effect

Identifieur interne : 000F26 ( Istex/Curation ); précédent : 000F25; suivant : 000F27

Photometric selection of emission-line galaxies, clustering analysis and a search for the integrated Sachs–Wolfe effect

Auteurs : Rich Bielby [France] ; T. Shanks ; U. Sawangwit ; S. M. Croom [Australie] ; Nicholas P. Ross [États-Unis] ; D. A. Wake

Source :

Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 2010-04-11.

RBID : ISTEX:508B804A396A7674F820FBC1AB655389185A7103

Abstract

We investigate the use of simple colour cuts applied to the Sloan Digital Sky Survey (SDSS) optical imaging to perform photometric selections of emission-line galaxies (ELGs) out to z < 1. Our selection is aimed at discerning three separate redshift ranges: 0.2 ≲z≲ 0.4, 0.4 ≲z≲ 0.6 and 0.6 ≲z≲ 1.0, which we calibrate using data taken by the COMBO-17 survey in a single field (S11). We thus perform colour cuts using the SDSS g, r and i bands and obtain mean photometric redshifts of and . We further calibrate our high-redshift selection using spectroscopic observations with the AAOmega spectrograph on the 4-m Anglo-Australian Telescope, observing ≈50–200 galaxy candidates in four separate fields. With just 1 h of integration time and seeing of ≈ 1.6 arcsec, we successfully determined redshifts for ≈65 per cent of the targeted candidates. We compare our spectroscopic redshifts to the photometric redshifts from the COMBO-17 survey and find reasonable agreement between the two. We calculate the angular correlation functions of these samples and find correlation lengths of r0= 2.78 ± 0.08, 3.71 ± 0.11 and 5.50 ± 0.13 h−1 Mpc for the low-, mid- and high-redshift samples, respectively. Comparing these results with predicted dark matter clustering, we estimate the bias parameter for each sample to be b= 0.72 ± 0.02, b= 0.93 ± 0.03 and b= 1.43 ± 0.03. We calculate the two-point redshift-space autocorrelation function at z≈ 0.6 and find a clustering amplitude of so= 6.4 ± 0.8 h−1 Mpc. Finally, we use our photometric sample to search for the integrated Sachs–Wolfe signal in the Wilkinson Microwave Anisotropy Probe (WMAP) 5-yr data. We cross-correlate our three redshift samples with the WMAP W, V, Q and K bands and find an overall trend for a positive signal similar to that expected from models. However, the signal in each is relatively weak, with the results in the WMAP W band being wTg(<100 arcmin) = 0.25 ± 0.27, 0.17 ± 0.20 and 0.17 ± 0.16 μK for the low-, mid- and high-redshift samples, respectively. Combining all three galaxy samples, we find a signal of wTg(<100 arcmin) = 0.20 ± 0.12 μK in the WMAP W band, a significance of 1.7σ. However, in testing for systematics where the WMAP data are rotated with respect to the ELG sample, we found similar results at several different rotation angles, implying the apparent signal may be produced by systematic effects.

Url:

https://api.istex.fr/document/508B804A396A7674F820FBC1AB655389185A7103/fulltext/pdf

DOI: 10.1111/j.1365-2966.2009.16219.x

Links toward previous steps (curation, corpus...)

to stream Istex, to step Corpus: Pour aller vers cette notice dans l'étape Curation :000F26

Links to Exploration step

ISTEX:508B804A396A7674F820FBC1AB655389185A7103

Curation

No country items

Rich Bielby

<affiliation><mods:affiliation></mods:affiliation>
<wicri:noCountry code="syntax">???</wicri:noCountry>
</affiliation>

<affiliation wicri:level="1"><mods:affiliation>E-mail: bielby@iap.fr</mods:affiliation>
<country wicri:rule="url">France</country>
</affiliation>

T. Shanks

<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>

U. Sawangwit

<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>

D. A. Wake

<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>

Le document en format XML

<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Photometric selection of emission-line galaxies, clustering analysis and a search for the integrated Sachs–Wolfe effect</title>
<author><name sortKey="Bielby, Rich" sort="Bielby, Rich" uniqKey="Bielby R" first="Rich" last="Bielby">Rich Bielby</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre et Marie Curie, 98bis boulevard Arago, 75014 Paris, France</mods:affiliation>
<country xml:lang="fr">France</country>
<wicri:regionArea>Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre et Marie Curie, 98bis boulevard Arago, 75014 Paris</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bielby@iap.fr</mods:affiliation>
<country wicri:rule="url">France</country>
</affiliation>
<affiliation><mods:affiliation></mods:affiliation>
<wicri:noCountry code="syntax">???</wicri:noCountry>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bielby@iap.fr</mods:affiliation>
<country wicri:rule="url">France</country>
</affiliation>
</author>
<author><name sortKey="Shanks, T" sort="Shanks, T" uniqKey="Shanks T" first="T." last="Shanks">T. Shanks</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="Sawangwit, U" sort="Sawangwit, U" uniqKey="Sawangwit U" first="U." last="Sawangwit">U. Sawangwit</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="Croom, S M" sort="Croom, S M" uniqKey="Croom S" first="S. M." last="Croom">S. M. Croom</name>
<affiliation wicri:level="1"><mods:affiliation>Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006, Australia</mods:affiliation>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006</wicri:regionArea>
</affiliation>
</author>
<author><name sortKey="Ross, Nicholas P" sort="Ross, Nicholas P" uniqKey="Ross N" first="Nicholas P." last="Ross">Nicholas P. Ross</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA</mods:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802</wicri:regionArea>
</affiliation>
</author>
<author><name sortKey="Wake, D A" sort="Wake, D A" uniqKey="Wake D" first="D. A." last="Wake">D. A. Wake</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:508B804A396A7674F820FBC1AB655389185A7103</idno>
<date when="2010" year="2010">2010</date>
<idno type="doi">10.1111/j.1365-2966.2009.16219.x</idno>
<idno type="url">https://api.istex.fr/document/508B804A396A7674F820FBC1AB655389185A7103/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000F26</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000F26</idno>
<idno type="wicri:Area/Istex/Curation">000F26</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a">Photometric selection of emission-line galaxies, clustering analysis and a search for the integrated Sachs–Wolfe effect</title>
<author><name sortKey="Bielby, Rich" sort="Bielby, Rich" uniqKey="Bielby R" first="Rich" last="Bielby">Rich Bielby</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre et Marie Curie, 98bis boulevard Arago, 75014 Paris, France</mods:affiliation>
<country xml:lang="fr">France</country>
<wicri:regionArea>Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre et Marie Curie, 98bis boulevard Arago, 75014 Paris</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bielby@iap.fr</mods:affiliation>
<country wicri:rule="url">France</country>
</affiliation>
<affiliation><mods:affiliation></mods:affiliation>
<wicri:noCountry code="syntax">???</wicri:noCountry>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bielby@iap.fr</mods:affiliation>
<country wicri:rule="url">France</country>
</affiliation>
</author>
<author><name sortKey="Shanks, T" sort="Shanks, T" uniqKey="Shanks T" first="T." last="Shanks">T. Shanks</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="Sawangwit, U" sort="Sawangwit, U" uniqKey="Sawangwit U" first="U." last="Sawangwit">U. Sawangwit</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="Croom, S M" sort="Croom, S M" uniqKey="Croom S" first="S. M." last="Croom">S. M. Croom</name>
<affiliation wicri:level="1"><mods:affiliation>Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006, Australia</mods:affiliation>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006</wicri:regionArea>
</affiliation>
</author>
<author><name sortKey="Ross, Nicholas P" sort="Ross, Nicholas P" uniqKey="Ross N" first="Nicholas P." last="Ross">Nicholas P. Ross</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA</mods:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802</wicri:regionArea>
</affiliation>
</author>
<author><name sortKey="Wake, D A" sort="Wake, D A" uniqKey="Wake D" first="D. A." last="Wake">D. A. Wake</name>
<affiliation><mods:affiliation>Department of Physics, Durham University, South Road, Durham DH1 3LE</mods:affiliation>
<wicri:noCountry code="subField">3LE</wicri:noCountry>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Monthly Notices of the Royal Astronomical Society</title>
<title level="j" type="abbrev">Monthly Notices of the Royal Astronomical Society</title>
<idno type="ISSN">0035-8711</idno>
<idno type="eISSN">1365-2966</idno>
<imprint><publisher>Blackwell Publishing Ltd</publisher>
<pubPlace>Oxford, UK</pubPlace>
<date type="published" when="2010-04-11">2010-04-11</date>
<biblScope unit="volume">403</biblScope>
<biblScope unit="issue">3</biblScope>
<biblScope unit="page" from="1261">1261</biblScope>
<biblScope unit="page" to="1273">1273</biblScope>
</imprint>
<idno type="ISSN">0035-8711</idno>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0035-8711</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract">We investigate the use of simple colour cuts applied to the Sloan Digital Sky Survey (SDSS) optical imaging to perform photometric selections of emission-line galaxies (ELGs) out to z < 1. Our selection is aimed at discerning three separate redshift ranges: 0.2 ≲z≲ 0.4, 0.4 ≲z≲ 0.6 and 0.6 ≲z≲ 1.0, which we calibrate using data taken by the COMBO-17 survey in a single field (S11). We thus perform colour cuts using the SDSS g, r and i bands and obtain mean photometric redshifts of and . We further calibrate our high-redshift selection using spectroscopic observations with the AAOmega spectrograph on the 4-m Anglo-Australian Telescope, observing ≈50–200 galaxy candidates in four separate fields. With just 1 h of integration time and seeing of ≈ 1.6 arcsec, we successfully determined redshifts for ≈65 per cent of the targeted candidates. We compare our spectroscopic redshifts to the photometric redshifts from the COMBO-17 survey and find reasonable agreement between the two. We calculate the angular correlation functions of these samples and find correlation lengths of r0= 2.78 ± 0.08, 3.71 ± 0.11 and 5.50 ± 0.13 h−1 Mpc for the low-, mid- and high-redshift samples, respectively. Comparing these results with predicted dark matter clustering, we estimate the bias parameter for each sample to be b= 0.72 ± 0.02, b= 0.93 ± 0.03 and b= 1.43 ± 0.03. We calculate the two-point redshift-space autocorrelation function at z≈ 0.6 and find a clustering amplitude of so= 6.4 ± 0.8 h−1 Mpc. Finally, we use our photometric sample to search for the integrated Sachs–Wolfe signal in the Wilkinson Microwave Anisotropy Probe (WMAP) 5-yr data. We cross-correlate our three redshift samples with the WMAP W, V, Q and K bands and find an overall trend for a positive signal similar to that expected from models. However, the signal in each is relatively weak, with the results in the WMAP W band being wTg(<100 arcmin) = 0.25 ± 0.27, 0.17 ± 0.20 and 0.17 ± 0.16 μK for the low-, mid- and high-redshift samples, respectively. Combining all three galaxy samples, we find a signal of wTg(<100 arcmin) = 0.20 ± 0.12 μK in the WMAP W band, a significance of 1.7σ. However, in testing for systematics where the WMAP data are rotated with respect to the ELG sample, we found similar results at several different rotation angles, implying the apparent signal may be produced by systematic effects.</div>
</front>
</TEI>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Istex/Curation

HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000F26 | SxmlIndent | more

HfdSelect -h $EXPLOR_AREA/Data/Istex/Curation/biblio.hfd -nk 000F26 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Asie
   |area=    AustralieFrV1
   |flux=    Istex
   |étape=   Curation
   |type=    RBID
   |clé=     ISTEX:508B804A396A7674F820FBC1AB655389185A7103
   |texte=   Photometric selection of emission-line galaxies, clustering analysis and a search for the integrated Sachs–Wolfe effect
}}

This area was generated with Dilib version V0.6.33.
Data generation: Tue Dec 5 10:43:12 2017. Site generation: Tue Mar 5 14:07:20 2024

	Serveur d'exploration sur les relations entre la France et l'Australie
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.

Serveur d'exploration sur les relations entre la France et l'Australie

Photometric selection of emission-line galaxies, clustering analysis and a search for the integrated Sachs–Wolfe effect

Photometric selection of emission-line galaxies, clustering analysis and a search for the integrated Sachs–Wolfe effect

Source :

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Curation

No country items

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri