The cold interstellar medium of a normal sub-$L^\star$ galaxy at the end of reionization
A&A 685, A138 (2024) We present the results of a ~60-hr observational campaign with ALMA targeting a spectroscopically confirmed and lensed sub-$L^\star$ galaxy at z=6.07, identified during the ALMA Lensing Cluster Survey (ALCS). We sample the dust continuum emission from rest frame 90 to 370 $\...
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| creator | Valentino, F Fujimoto, S Giménez-Arteaga, C Brammer, G Kohno, K Sun, F Kokorev, V Bauer, F. E Di Cesare, C Espada, D Lee, M Dessauges-Zavadsky, M Ao, Y Koekemoer, A. M Ouchi, M Wu, J. F Egami, E Jolly, J. -B Lagos, C. del P Magdis, G. E Schaerer, D Shimasaku, K Umehata, H Wang, W. -H |
| description | A&A 685, A138 (2024) We present the results of a ~60-hr observational campaign with ALMA targeting
a spectroscopically confirmed and lensed sub-$L^\star$ galaxy at z=6.07,
identified during the ALMA Lensing Cluster Survey (ALCS). We sample the dust
continuum emission from rest frame 90 to 370 $\mu$m at six different
frequencies and set constraining upper limits on the molecular gas line
emission and content via CO(7-6) and [CI](2-1) for two lensed images with
$\mu\gtrsim20$. Complementing these sub-mm observations with deep optical and
near-IR photometry and spectroscopy with JWST, we find this galaxy to form
stars at a rate of SFR~7 Msun/yr, ~50-70% of which is obscured by dust. This is
consistent with what is expected for a $M_\star$~7.5$\times10^{8}$ Msun object
by extrapolating the $M_\star$-obscured SFR fraction relation at z |
| doi_str_mv | 10.48550/arxiv.2402.17845 |
| format | Article |
| fullrecord | <record><control><sourceid>arxiv_GOX</sourceid><recordid>TN_cdi_arxiv_primary_2402_17845</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2402_17845</sourcerecordid><originalsourceid>FETCH-arxiv_primary_2402_178453</originalsourceid><addsrcrecordid>eNqFjj0PgjAUALs4GPUHOPkGVhAQIrvRODgyOBjJ0xZt0g_zWgz46wXi7nTL5XKMLZM4yoo8j9dIrXxHaRanUbItsnzKzuVTwN0qDtJ4Qc4LpZBACy4bDbYGBGNJowLX3MLgdL04jxTAAxW2HaAH3weE4YNLQlojP-h7zNmkRuXE4scZWx325e4Yjg_Vi6RG6qrhpRpfNv-NL84nPu0</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>The cold interstellar medium of a normal sub-$L^\star$ galaxy at the end of reionization</title><source>arXiv.org</source><creator>Valentino, F ; Fujimoto, S ; Giménez-Arteaga, C ; Brammer, G ; Kohno, K ; Sun, F ; Kokorev, V ; Bauer, F. E ; Di Cesare, C ; Espada, D ; Lee, M ; Dessauges-Zavadsky, M ; Ao, Y ; Koekemoer, A. M ; Ouchi, M ; Wu, J. F ; Egami, E ; Jolly, J. -B ; Lagos, C. del P ; Magdis, G. E ; Schaerer, D ; Shimasaku, K ; Umehata, H ; Wang, W. -H</creator><creatorcontrib>Valentino, F ; Fujimoto, S ; Giménez-Arteaga, C ; Brammer, G ; Kohno, K ; Sun, F ; Kokorev, V ; Bauer, F. E ; Di Cesare, C ; Espada, D ; Lee, M ; Dessauges-Zavadsky, M ; Ao, Y ; Koekemoer, A. M ; Ouchi, M ; Wu, J. F ; Egami, E ; Jolly, J. -B ; Lagos, C. del P ; Magdis, G. E ; Schaerer, D ; Shimasaku, K ; Umehata, H ; Wang, W. -H</creatorcontrib><description>A&A 685, A138 (2024) We present the results of a ~60-hr observational campaign with ALMA targeting
a spectroscopically confirmed and lensed sub-$L^\star$ galaxy at z=6.07,
identified during the ALMA Lensing Cluster Survey (ALCS). We sample the dust
continuum emission from rest frame 90 to 370 $\mu$m at six different
frequencies and set constraining upper limits on the molecular gas line
emission and content via CO(7-6) and [CI](2-1) for two lensed images with
$\mu\gtrsim20$. Complementing these sub-mm observations with deep optical and
near-IR photometry and spectroscopy with JWST, we find this galaxy to form
stars at a rate of SFR~7 Msun/yr, ~50-70% of which is obscured by dust. This is
consistent with what is expected for a $M_\star$~7.5$\times10^{8}$ Msun object
by extrapolating the $M_\star$-obscured SFR fraction relation at z<2.5 and with
observations at 5<z<7. The dust temperature of ~50K is similar to that of more
massive galaxies at similar redshifts, although with large uncertainties and
with possible negative gradients. We measure a dust mass of $M_{\rm
dust}$~1.5$\times10^6$ Msun and, by combining [CI], [CII], and a dynamical
estimate, a gas mass of ~2$\times10^9$ Msun. Their ratio is in good agreement
with the predictions from models in the literature. The $M_{\rm
dust}$/$M_\star$ fraction of ~0.002 and the young stellar age are consistent
with dust production via supernovae. Also, models predict a number density of
galaxies with $M_{\rm dust}\sim10^{6}$ Msun at z=6 in agreement with our
estimate from the parent ALCS survey. The combination of lensing and
multiwavelength observations allow us to probe luminosity regimes up to two
orders of magnitude lower than what has been explored so far for field galaxies
at similar redshifts. Our results serve as a benchmark for future observations
of faint sub-$L^\star$ galaxy population that might have driven the
reionization of the Universe. [Abridged]</description><identifier>DOI: 10.48550/arxiv.2402.17845</identifier><language>eng</language><subject>Physics - Astrophysics of Galaxies ; Physics - Cosmology and Nongalactic Astrophysics</subject><creationdate>2024-02</creationdate><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2402.17845$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2402.17845$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1051/0004-6361/202348128$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>Valentino, F</creatorcontrib><creatorcontrib>Fujimoto, S</creatorcontrib><creatorcontrib>Giménez-Arteaga, C</creatorcontrib><creatorcontrib>Brammer, G</creatorcontrib><creatorcontrib>Kohno, K</creatorcontrib><creatorcontrib>Sun, F</creatorcontrib><creatorcontrib>Kokorev, V</creatorcontrib><creatorcontrib>Bauer, F. E</creatorcontrib><creatorcontrib>Di Cesare, C</creatorcontrib><creatorcontrib>Espada, D</creatorcontrib><creatorcontrib>Lee, M</creatorcontrib><creatorcontrib>Dessauges-Zavadsky, M</creatorcontrib><creatorcontrib>Ao, Y</creatorcontrib><creatorcontrib>Koekemoer, A. M</creatorcontrib><creatorcontrib>Ouchi, M</creatorcontrib><creatorcontrib>Wu, J. F</creatorcontrib><creatorcontrib>Egami, E</creatorcontrib><creatorcontrib>Jolly, J. -B</creatorcontrib><creatorcontrib>Lagos, C. del P</creatorcontrib><creatorcontrib>Magdis, G. E</creatorcontrib><creatorcontrib>Schaerer, D</creatorcontrib><creatorcontrib>Shimasaku, K</creatorcontrib><creatorcontrib>Umehata, H</creatorcontrib><creatorcontrib>Wang, W. -H</creatorcontrib><title>The cold interstellar medium of a normal sub-$L^\star$ galaxy at the end of reionization</title><description>A&A 685, A138 (2024) We present the results of a ~60-hr observational campaign with ALMA targeting
a spectroscopically confirmed and lensed sub-$L^\star$ galaxy at z=6.07,
identified during the ALMA Lensing Cluster Survey (ALCS). We sample the dust
continuum emission from rest frame 90 to 370 $\mu$m at six different
frequencies and set constraining upper limits on the molecular gas line
emission and content via CO(7-6) and [CI](2-1) for two lensed images with
$\mu\gtrsim20$. Complementing these sub-mm observations with deep optical and
near-IR photometry and spectroscopy with JWST, we find this galaxy to form
stars at a rate of SFR~7 Msun/yr, ~50-70% of which is obscured by dust. This is
consistent with what is expected for a $M_\star$~7.5$\times10^{8}$ Msun object
by extrapolating the $M_\star$-obscured SFR fraction relation at z<2.5 and with
observations at 5<z<7. The dust temperature of ~50K is similar to that of more
massive galaxies at similar redshifts, although with large uncertainties and
with possible negative gradients. We measure a dust mass of $M_{\rm
dust}$~1.5$\times10^6$ Msun and, by combining [CI], [CII], and a dynamical
estimate, a gas mass of ~2$\times10^9$ Msun. Their ratio is in good agreement
with the predictions from models in the literature. The $M_{\rm
dust}$/$M_\star$ fraction of ~0.002 and the young stellar age are consistent
with dust production via supernovae. Also, models predict a number density of
galaxies with $M_{\rm dust}\sim10^{6}$ Msun at z=6 in agreement with our
estimate from the parent ALCS survey. The combination of lensing and
multiwavelength observations allow us to probe luminosity regimes up to two
orders of magnitude lower than what has been explored so far for field galaxies
at similar redshifts. Our results serve as a benchmark for future observations
of faint sub-$L^\star$ galaxy population that might have driven the
reionization of the Universe. [Abridged]</description><subject>Physics - Astrophysics of Galaxies</subject><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqFjj0PgjAUALs4GPUHOPkGVhAQIrvRODgyOBjJ0xZt0g_zWgz46wXi7nTL5XKMLZM4yoo8j9dIrXxHaRanUbItsnzKzuVTwN0qDtJ4Qc4LpZBACy4bDbYGBGNJowLX3MLgdL04jxTAAxW2HaAH3weE4YNLQlojP-h7zNmkRuXE4scZWx325e4Yjg_Vi6RG6qrhpRpfNv-NL84nPu0</recordid><startdate>20240227</startdate><enddate>20240227</enddate><creator>Valentino, F</creator><creator>Fujimoto, S</creator><creator>Giménez-Arteaga, C</creator><creator>Brammer, G</creator><creator>Kohno, K</creator><creator>Sun, F</creator><creator>Kokorev, V</creator><creator>Bauer, F. E</creator><creator>Di Cesare, C</creator><creator>Espada, D</creator><creator>Lee, M</creator><creator>Dessauges-Zavadsky, M</creator><creator>Ao, Y</creator><creator>Koekemoer, A. M</creator><creator>Ouchi, M</creator><creator>Wu, J. F</creator><creator>Egami, E</creator><creator>Jolly, J. -B</creator><creator>Lagos, C. del P</creator><creator>Magdis, G. E</creator><creator>Schaerer, D</creator><creator>Shimasaku, K</creator><creator>Umehata, H</creator><creator>Wang, W. -H</creator><scope>GOX</scope></search><sort><creationdate>20240227</creationdate><title>The cold interstellar medium of a normal sub-$L^\star$ galaxy at the end of reionization</title><author>Valentino, F ; Fujimoto, S ; Giménez-Arteaga, C ; Brammer, G ; Kohno, K ; Sun, F ; Kokorev, V ; Bauer, F. E ; Di Cesare, C ; Espada, D ; Lee, M ; Dessauges-Zavadsky, M ; Ao, Y ; Koekemoer, A. M ; Ouchi, M ; Wu, J. F ; Egami, E ; Jolly, J. -B ; Lagos, C. del P ; Magdis, G. E ; Schaerer, D ; Shimasaku, K ; Umehata, H ; Wang, W. -H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_2402_178453</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Physics - Astrophysics of Galaxies</topic><topic>Physics - Cosmology and Nongalactic Astrophysics</topic><toplevel>online_resources</toplevel><creatorcontrib>Valentino, F</creatorcontrib><creatorcontrib>Fujimoto, S</creatorcontrib><creatorcontrib>Giménez-Arteaga, C</creatorcontrib><creatorcontrib>Brammer, G</creatorcontrib><creatorcontrib>Kohno, K</creatorcontrib><creatorcontrib>Sun, F</creatorcontrib><creatorcontrib>Kokorev, V</creatorcontrib><creatorcontrib>Bauer, F. E</creatorcontrib><creatorcontrib>Di Cesare, C</creatorcontrib><creatorcontrib>Espada, D</creatorcontrib><creatorcontrib>Lee, M</creatorcontrib><creatorcontrib>Dessauges-Zavadsky, M</creatorcontrib><creatorcontrib>Ao, Y</creatorcontrib><creatorcontrib>Koekemoer, A. M</creatorcontrib><creatorcontrib>Ouchi, M</creatorcontrib><creatorcontrib>Wu, J. F</creatorcontrib><creatorcontrib>Egami, E</creatorcontrib><creatorcontrib>Jolly, J. -B</creatorcontrib><creatorcontrib>Lagos, C. del P</creatorcontrib><creatorcontrib>Magdis, G. E</creatorcontrib><creatorcontrib>Schaerer, D</creatorcontrib><creatorcontrib>Shimasaku, K</creatorcontrib><creatorcontrib>Umehata, H</creatorcontrib><creatorcontrib>Wang, W. -H</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Valentino, F</au><au>Fujimoto, S</au><au>Giménez-Arteaga, C</au><au>Brammer, G</au><au>Kohno, K</au><au>Sun, F</au><au>Kokorev, V</au><au>Bauer, F. E</au><au>Di Cesare, C</au><au>Espada, D</au><au>Lee, M</au><au>Dessauges-Zavadsky, M</au><au>Ao, Y</au><au>Koekemoer, A. M</au><au>Ouchi, M</au><au>Wu, J. F</au><au>Egami, E</au><au>Jolly, J. -B</au><au>Lagos, C. del P</au><au>Magdis, G. E</au><au>Schaerer, D</au><au>Shimasaku, K</au><au>Umehata, H</au><au>Wang, W. -H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The cold interstellar medium of a normal sub-$L^\star$ galaxy at the end of reionization</atitle><date>2024-02-27</date><risdate>2024</risdate><abstract>A&A 685, A138 (2024) We present the results of a ~60-hr observational campaign with ALMA targeting
a spectroscopically confirmed and lensed sub-$L^\star$ galaxy at z=6.07,
identified during the ALMA Lensing Cluster Survey (ALCS). We sample the dust
continuum emission from rest frame 90 to 370 $\mu$m at six different
frequencies and set constraining upper limits on the molecular gas line
emission and content via CO(7-6) and [CI](2-1) for two lensed images with
$\mu\gtrsim20$. Complementing these sub-mm observations with deep optical and
near-IR photometry and spectroscopy with JWST, we find this galaxy to form
stars at a rate of SFR~7 Msun/yr, ~50-70% of which is obscured by dust. This is
consistent with what is expected for a $M_\star$~7.5$\times10^{8}$ Msun object
by extrapolating the $M_\star$-obscured SFR fraction relation at z<2.5 and with
observations at 5<z<7. The dust temperature of ~50K is similar to that of more
massive galaxies at similar redshifts, although with large uncertainties and
with possible negative gradients. We measure a dust mass of $M_{\rm
dust}$~1.5$\times10^6$ Msun and, by combining [CI], [CII], and a dynamical
estimate, a gas mass of ~2$\times10^9$ Msun. Their ratio is in good agreement
with the predictions from models in the literature. The $M_{\rm
dust}$/$M_\star$ fraction of ~0.002 and the young stellar age are consistent
with dust production via supernovae. Also, models predict a number density of
galaxies with $M_{\rm dust}\sim10^{6}$ Msun at z=6 in agreement with our
estimate from the parent ALCS survey. The combination of lensing and
multiwavelength observations allow us to probe luminosity regimes up to two
orders of magnitude lower than what has been explored so far for field galaxies
at similar redshifts. Our results serve as a benchmark for future observations
of faint sub-$L^\star$ galaxy population that might have driven the
reionization of the Universe. [Abridged]</abstract><doi>10.48550/arxiv.2402.17845</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics |
| title | The cold interstellar medium of a normal sub-$L^\star$ galaxy at the end of reionization |
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