A multi-wavelength study of z = 3.15 Lyman-alpha emitters in the GOODS South Field
Context: Ly-alpha-emitters have proven to be excellent probes of faint, star-forming galaxies in the high redshift universe. However, although the sample of known emitters is increasingly growing, their nature (e.g. stellar masses, ages, metallicities, star-formation rates) is still poorly constrain...
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| creator | Nilsson, Kim K Moeller, P Moeller, O Fynbo, J P U Michalowski, M J Watson, D Ledoux, C Rosati, P Pedersen, K Grove, L F |
| description | Context: Ly-alpha-emitters have proven to be excellent probes of faint, star-forming galaxies in the high redshift universe. However, although the sample of known emitters is increasingly growing, their nature (e.g. stellar masses, ages, metallicities, star-formation rates) is still poorly constrained. Aims: We aim to study the nature of Ly-alpha-emitters, to find the properties of a typical Ly-alpha-emitting galaxy and to compare these properties with the properties of other galaxies at similar redshift, in particular Lyman-break galaxies. Methods: We have performed narrow-band imaging at the VLT, focused on Ly-alpha at redshift z ~ 3.15, in the GOODS-S field. We have identified a sample of Ly-alpha-emitting candidates, and we have studied their Spectral Energy Distributions (SEDs). Results: We find that the emitters are best fit by an SED with low metallicity (Z/Z_sun = 0.005), low dust extinction (A_V ~ 0.32) and medium stellar masses of approximately 10^9 M_sun. The age is not very well constrained. One object out of 24 appears to be a high redshift Ly-alpha-emitting dusty starburst galaxy. We find filamentary structure as traced by the Ly-alpha-emitters at the 4 sigma level. The rest-frame UV SED of these galaxies is very similar to that of Lyman Break Galaxies (LBGs) and comply with the selection criteria for U-band drop-outs, except they are intrinsically fainter than the current limit for LBGs. Conclusion: Ly-alpha-emitters are excellent probes of galaxies in the distant universe, and represent a class of star-forming, dust and AGN free, medium mass objects. |
| doi_str_mv | 10.48550/arxiv.0706.1070 |
| format | Article |
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However, although the sample of known emitters is increasingly growing, their nature (e.g. stellar masses, ages, metallicities, star-formation rates) is still poorly constrained. Aims: We aim to study the nature of Ly-alpha-emitters, to find the properties of a typical Ly-alpha-emitting galaxy and to compare these properties with the properties of other galaxies at similar redshift, in particular Lyman-break galaxies. Methods: We have performed narrow-band imaging at the VLT, focused on Ly-alpha at redshift z ~ 3.15, in the GOODS-S field. We have identified a sample of Ly-alpha-emitting candidates, and we have studied their Spectral Energy Distributions (SEDs). Results: We find that the emitters are best fit by an SED with low metallicity (Z/Z_sun = 0.005), low dust extinction (A_V ~ 0.32) and medium stellar masses of approximately 10^9 M_sun. The age is not very well constrained. One object out of 24 appears to be a high redshift Ly-alpha-emitting dusty starburst galaxy. We find filamentary structure as traced by the Ly-alpha-emitters at the 4 sigma level. The rest-frame UV SED of these galaxies is very similar to that of Lyman Break Galaxies (LBGs) and comply with the selection criteria for U-band drop-outs, except they are intrinsically fainter than the current limit for LBGs. Conclusion: Ly-alpha-emitters are excellent probes of galaxies in the distant universe, and represent a class of star-forming, dust and AGN free, medium mass objects.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.0706.1070</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Active galactic nuclei ; Cosmic dust ; Emitters ; Galaxies ; Lyman-alpha radiation ; Metallicity ; Physics - Astrophysics of Galaxies ; Physics - Cosmology and Nongalactic Astrophysics ; Physics - Earth and Planetary Astrophysics ; Physics - High Energy Astrophysical Phenomena ; Physics - Instrumentation and Methods for Astrophysics ; Physics - Solar and Stellar Astrophysics ; Properties (attributes) ; Red shift ; Spectral emittance ; Star & galaxy formation ; Star formation ; Starburst galaxies ; Stars & galaxies ; Stellar age ; Universe</subject><ispartof>arXiv.org, 2007-06</ispartof><rights>Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the associated terms available at http://arxiv.org/abs/0706.1070.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,780,881,27904</link.rule.ids><backlink>$$Uhttps://doi.org/10.1051/0004-6361:20066949$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.0706.1070$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Nilsson, Kim K</creatorcontrib><creatorcontrib>Moeller, P</creatorcontrib><creatorcontrib>Moeller, O</creatorcontrib><creatorcontrib>Fynbo, J P U</creatorcontrib><creatorcontrib>Michalowski, M J</creatorcontrib><creatorcontrib>Watson, D</creatorcontrib><creatorcontrib>Ledoux, C</creatorcontrib><creatorcontrib>Rosati, P</creatorcontrib><creatorcontrib>Pedersen, K</creatorcontrib><creatorcontrib>Grove, L F</creatorcontrib><title>A multi-wavelength study of z = 3.15 Lyman-alpha emitters in the GOODS South Field</title><title>arXiv.org</title><description>Context: Ly-alpha-emitters have proven to be excellent probes of faint, star-forming galaxies in the high redshift universe. 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We find filamentary structure as traced by the Ly-alpha-emitters at the 4 sigma level. The rest-frame UV SED of these galaxies is very similar to that of Lyman Break Galaxies (LBGs) and comply with the selection criteria for U-band drop-outs, except they are intrinsically fainter than the current limit for LBGs. Conclusion: Ly-alpha-emitters are excellent probes of galaxies in the distant universe, and represent a class of star-forming, dust and AGN free, medium mass objects.</description><subject>Active galactic nuclei</subject><subject>Cosmic dust</subject><subject>Emitters</subject><subject>Galaxies</subject><subject>Lyman-alpha radiation</subject><subject>Metallicity</subject><subject>Physics - Astrophysics of Galaxies</subject><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><subject>Physics - Earth and Planetary Astrophysics</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Physics - Instrumentation and Methods for Astrophysics</subject><subject>Physics - Solar and Stellar Astrophysics</subject><subject>Properties (attributes)</subject><subject>Red shift</subject><subject>Spectral emittance</subject><subject>Star & galaxy formation</subject><subject>Star formation</subject><subject>Starburst galaxies</subject><subject>Stars & galaxies</subject><subject>Stellar age</subject><subject>Universe</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj71PwzAUxC0kJKrSnQlZYk7wR5zaA0NVaEGqVIl2j55Tm6bKF45TCH89DmW5N9y90_0QuqMkTqQQ5BHcd3GOyZykMQ16hSaMcxrJhLEbNOu6EyGEpXMmBJ-g9wWu-tIX0RecTWnqD3_Ene8PA24s_sFPmMdU4M1QQR1B2R4Bm6rw3rgOFzX2R4PX2-3zDu-aPnyuClMebtG1hbIzs_87RfvVy375Gm2267flYhOBoDyCRCVCE9DaWk0lSMjnuU00KGFyKw-CjHaqLElZnobJlGsuAlSutJAJ51N0f6n9481aV1TghmzkzkbuEHi4BFrXfPam89mp6V0dJmWMyFQpRULNL8R7WI4</recordid><startdate>20070607</startdate><enddate>20070607</enddate><creator>Nilsson, Kim K</creator><creator>Moeller, P</creator><creator>Moeller, O</creator><creator>Fynbo, J P U</creator><creator>Michalowski, M J</creator><creator>Watson, D</creator><creator>Ledoux, C</creator><creator>Rosati, P</creator><creator>Pedersen, K</creator><creator>Grove, L F</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20070607</creationdate><title>A multi-wavelength study of z = 3.15 Lyman-alpha emitters in the GOODS South Field</title><author>Nilsson, Kim K ; Moeller, P ; Moeller, O ; Fynbo, J P U ; Michalowski, M J ; Watson, D ; Ledoux, C ; Rosati, P ; Pedersen, K ; Grove, L F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a513-a4945b0abbffb18a8ac7cf4ba95ecf8d5045b069f062c600013b35706c9b58433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Active galactic nuclei</topic><topic>Cosmic dust</topic><topic>Emitters</topic><topic>Galaxies</topic><topic>Lyman-alpha radiation</topic><topic>Metallicity</topic><topic>Physics - Astrophysics of Galaxies</topic><topic>Physics - Cosmology and Nongalactic Astrophysics</topic><topic>Physics - Earth and Planetary Astrophysics</topic><topic>Physics - High Energy Astrophysical Phenomena</topic><topic>Physics - Instrumentation and Methods for Astrophysics</topic><topic>Physics - Solar and Stellar Astrophysics</topic><topic>Properties (attributes)</topic><topic>Red shift</topic><topic>Spectral emittance</topic><topic>Star & galaxy formation</topic><topic>Star formation</topic><topic>Starburst galaxies</topic><topic>Stars & galaxies</topic><topic>Stellar age</topic><topic>Universe</topic><toplevel>online_resources</toplevel><creatorcontrib>Nilsson, Kim K</creatorcontrib><creatorcontrib>Moeller, P</creatorcontrib><creatorcontrib>Moeller, O</creatorcontrib><creatorcontrib>Fynbo, J P U</creatorcontrib><creatorcontrib>Michalowski, M J</creatorcontrib><creatorcontrib>Watson, D</creatorcontrib><creatorcontrib>Ledoux, C</creatorcontrib><creatorcontrib>Rosati, P</creatorcontrib><creatorcontrib>Pedersen, K</creatorcontrib><creatorcontrib>Grove, L F</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nilsson, Kim K</au><au>Moeller, P</au><au>Moeller, O</au><au>Fynbo, J P U</au><au>Michalowski, M J</au><au>Watson, D</au><au>Ledoux, C</au><au>Rosati, P</au><au>Pedersen, K</au><au>Grove, L F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A multi-wavelength study of z = 3.15 Lyman-alpha emitters in the GOODS South Field</atitle><jtitle>arXiv.org</jtitle><date>2007-06-07</date><risdate>2007</risdate><eissn>2331-8422</eissn><abstract>Context: Ly-alpha-emitters have proven to be excellent probes of faint, star-forming galaxies in the high redshift universe. However, although the sample of known emitters is increasingly growing, their nature (e.g. stellar masses, ages, metallicities, star-formation rates) is still poorly constrained. Aims: We aim to study the nature of Ly-alpha-emitters, to find the properties of a typical Ly-alpha-emitting galaxy and to compare these properties with the properties of other galaxies at similar redshift, in particular Lyman-break galaxies. Methods: We have performed narrow-band imaging at the VLT, focused on Ly-alpha at redshift z ~ 3.15, in the GOODS-S field. We have identified a sample of Ly-alpha-emitting candidates, and we have studied their Spectral Energy Distributions (SEDs). Results: We find that the emitters are best fit by an SED with low metallicity (Z/Z_sun = 0.005), low dust extinction (A_V ~ 0.32) and medium stellar masses of approximately 10^9 M_sun. The age is not very well constrained. One object out of 24 appears to be a high redshift Ly-alpha-emitting dusty starburst galaxy. 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| subjects | Active galactic nuclei Cosmic dust Emitters Galaxies Lyman-alpha radiation Metallicity Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics Physics - Earth and Planetary Astrophysics Physics - High Energy Astrophysical Phenomena Physics - Instrumentation and Methods for Astrophysics Physics - Solar and Stellar Astrophysics Properties (attributes) Red shift Spectral emittance Star & galaxy formation Star formation Starburst galaxies Stars & galaxies Stellar age Universe |
| title | A multi-wavelength study of z = 3.15 Lyman-alpha emitters in the GOODS South Field |
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