A First Look at Spatially Resolved Star Formation at $4.8<z<6.5$ with JWST FRESCO NIRCam Slitless Spectroscopy
A&A 690, A64 (2024) We present the first results on the spatial distribution of star formation in 454 star-forming galaxies at $4.8
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| creator | Matharu, Jasleen Nelson, Erica J Brammer, Gabriel Oesch, Pascal A Allen, Natalie Shivaei, Irene Naidu, Rohan P Chisholm, John Covelo-Paz, Alba Fudamoto, Yoshinobu Giovinazzo, Emma Herard-Demanche, Thomas Kerutt, Josephine Kramarenko, Ivan Marchesini, Danilo Meyer, Romain A Prieto-Lyon, Gonzalo Reddy, Naveen Shuntov, Marko Weibel, Andrea Wuyts, Stijn Xiao, Mengyuan |
| description | A&A 690, A64 (2024) We present the first results on the spatial distribution of star formation in
454 star-forming galaxies at $4.8 |
| doi_str_mv | 10.48550/arxiv.2404.17629 |
| format | Article |
| fullrecord | <record><control><sourceid>arxiv_GOX</sourceid><recordid>TN_cdi_arxiv_primary_2404_17629</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2404_17629</sourcerecordid><originalsourceid>FETCH-LOGICAL-a679-6f9415778bf08bc73ae8f85c4826c8a4e5e36604ed854690e709654f9100f48d3</originalsourceid><addsrcrecordid>eNotj01LwzAAhnPxINMf4Mkcdm1N23zCLqOsOhkO2oLHkrUJBtOlJGFaf73b9PQenpcHHgAeMpRiTgh6kv7bnNIcI5xmjObiFhzXsDI-RLhz7hPKCJtJRiOtnWGtgrMnNcAmSg8r58czccfLaYlTvvpZ0ZQs4ZeJH_D1vWlhVW-acg_ftnUpR9hYE60K4WxUffQu9G6a78CNljao-_9dgLbatOVLsts_b8v1LpGUiYRqgTPCGD9oxA89K6TimpMe85z2XGJFVEEpwmrgBFOBFEOCEqxFhpDGfCgW4PFPew3uJm9G6efuEt5dw4tfWKRQdQ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>A First Look at Spatially Resolved Star Formation at $4.8<z<6.5$ with JWST FRESCO NIRCam Slitless Spectroscopy</title><source>arXiv.org</source><creator>Matharu, Jasleen ; Nelson, Erica J ; Brammer, Gabriel ; Oesch, Pascal A ; Allen, Natalie ; Shivaei, Irene ; Naidu, Rohan P ; Chisholm, John ; Covelo-Paz, Alba ; Fudamoto, Yoshinobu ; Giovinazzo, Emma ; Herard-Demanche, Thomas ; Kerutt, Josephine ; Kramarenko, Ivan ; Marchesini, Danilo ; Meyer, Romain A ; Prieto-Lyon, Gonzalo ; Reddy, Naveen ; Shuntov, Marko ; Weibel, Andrea ; Wuyts, Stijn ; Xiao, Mengyuan</creator><creatorcontrib>Matharu, Jasleen ; Nelson, Erica J ; Brammer, Gabriel ; Oesch, Pascal A ; Allen, Natalie ; Shivaei, Irene ; Naidu, Rohan P ; Chisholm, John ; Covelo-Paz, Alba ; Fudamoto, Yoshinobu ; Giovinazzo, Emma ; Herard-Demanche, Thomas ; Kerutt, Josephine ; Kramarenko, Ivan ; Marchesini, Danilo ; Meyer, Romain A ; Prieto-Lyon, Gonzalo ; Reddy, Naveen ; Shuntov, Marko ; Weibel, Andrea ; Wuyts, Stijn ; Xiao, Mengyuan</creatorcontrib><description>A&A 690, A64 (2024) We present the first results on the spatial distribution of star formation in
454 star-forming galaxies at $4.8<z<6.5$ using H-Alpha emission-line maps and
F444W imaging tracing the stellar continuum from JWST FRESCO NIRCam Slitless
Spectroscopy. Star-forming galaxies with stellar masses
$6.8\leq$log($M_{*}/\mathrm{M}_{\odot}$)$<11.1$ have positive H-Alpha
equivalent width profiles, providing direct evidence for the inside-out growth
of galaxies just after the epoch of reionisation. GALFIT is used to calculate
half-light radii, $R_{\mathrm{eff}}$ and central surface densities within 1
kiloparsec, $\Sigma_{1\mathrm{kpc}}$. At a fixed stellar mass of
log$(M_{*}/\mathrm{M}_{\odot})=9.5$, $\Sigma_{1\mathrm{kpc, H}\alpha}$ is
$1.04\pm0.05$ times higher than $\Sigma_{1\mathrm{kpc, C}}$, $R_{\mathrm{eff,
H}\alpha}$ is $1.18\pm0.03$ times larger than $R_{\mathrm{eff, C}}$ and both
$R_{\mathrm{eff}}$ measurements are less than 1 kiloparsec. These measurements
suggest the rapid build-up of compact bulges just after the epoch of
reionisation. By comparing to work done at lower redshifts with HST WFC3
Slitless Spectroscopy as part of the 3D-HST ($z=1$) and CLEAR ($z=0.5$)
surveys, we find that $R_{\mathrm{eff}}(z)$ evolves at the same pace for
H$\alpha$ and the continuum, but $\Sigma_{1\mathrm{kpc}}(z)$ evolves faster for
H$\alpha$. As a function of the Hubble parameter, $\frac{R_{\mathrm{eff,
H}\alpha}}{R_{\mathrm{eff, C}}}=1.1h(z)$ and
$\frac{\Sigma_{1\mathrm{kpc,H}\alpha}}{\Sigma_{1\mathrm{kpc,C}}}=h(z)^{1.3}$.
These functions suggest that the inside-out growth of the disk dominates the
inside-out growth of the bulge towards lower redshifts. This is supported by
the redshift evolution in EW(H$\alpha$) profiles, where there is rapid increase
in EW(H$\alpha$) with radius within the half-light radius at $z=5.3$ but only
significantly increasing EW(H$\alpha$) with radius in the outer disk at
$z=0.5$.</description><identifier>DOI: 10.48550/arxiv.2404.17629</identifier><language>eng</language><subject>Physics - Astrophysics of Galaxies</subject><creationdate>2024-04</creationdate><rights>http://creativecommons.org/licenses/by/4.0</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/2404.17629$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.1051/0004-6361/202450522$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.2404.17629$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Matharu, Jasleen</creatorcontrib><creatorcontrib>Nelson, Erica J</creatorcontrib><creatorcontrib>Brammer, Gabriel</creatorcontrib><creatorcontrib>Oesch, Pascal A</creatorcontrib><creatorcontrib>Allen, Natalie</creatorcontrib><creatorcontrib>Shivaei, Irene</creatorcontrib><creatorcontrib>Naidu, Rohan P</creatorcontrib><creatorcontrib>Chisholm, John</creatorcontrib><creatorcontrib>Covelo-Paz, Alba</creatorcontrib><creatorcontrib>Fudamoto, Yoshinobu</creatorcontrib><creatorcontrib>Giovinazzo, Emma</creatorcontrib><creatorcontrib>Herard-Demanche, Thomas</creatorcontrib><creatorcontrib>Kerutt, Josephine</creatorcontrib><creatorcontrib>Kramarenko, Ivan</creatorcontrib><creatorcontrib>Marchesini, Danilo</creatorcontrib><creatorcontrib>Meyer, Romain A</creatorcontrib><creatorcontrib>Prieto-Lyon, Gonzalo</creatorcontrib><creatorcontrib>Reddy, Naveen</creatorcontrib><creatorcontrib>Shuntov, Marko</creatorcontrib><creatorcontrib>Weibel, Andrea</creatorcontrib><creatorcontrib>Wuyts, Stijn</creatorcontrib><creatorcontrib>Xiao, Mengyuan</creatorcontrib><title>A First Look at Spatially Resolved Star Formation at $4.8<z<6.5$ with JWST FRESCO NIRCam Slitless Spectroscopy</title><description>A&A 690, A64 (2024) We present the first results on the spatial distribution of star formation in
454 star-forming galaxies at $4.8<z<6.5$ using H-Alpha emission-line maps and
F444W imaging tracing the stellar continuum from JWST FRESCO NIRCam Slitless
Spectroscopy. Star-forming galaxies with stellar masses
$6.8\leq$log($M_{*}/\mathrm{M}_{\odot}$)$<11.1$ have positive H-Alpha
equivalent width profiles, providing direct evidence for the inside-out growth
of galaxies just after the epoch of reionisation. GALFIT is used to calculate
half-light radii, $R_{\mathrm{eff}}$ and central surface densities within 1
kiloparsec, $\Sigma_{1\mathrm{kpc}}$. At a fixed stellar mass of
log$(M_{*}/\mathrm{M}_{\odot})=9.5$, $\Sigma_{1\mathrm{kpc, H}\alpha}$ is
$1.04\pm0.05$ times higher than $\Sigma_{1\mathrm{kpc, C}}$, $R_{\mathrm{eff,
H}\alpha}$ is $1.18\pm0.03$ times larger than $R_{\mathrm{eff, C}}$ and both
$R_{\mathrm{eff}}$ measurements are less than 1 kiloparsec. These measurements
suggest the rapid build-up of compact bulges just after the epoch of
reionisation. By comparing to work done at lower redshifts with HST WFC3
Slitless Spectroscopy as part of the 3D-HST ($z=1$) and CLEAR ($z=0.5$)
surveys, we find that $R_{\mathrm{eff}}(z)$ evolves at the same pace for
H$\alpha$ and the continuum, but $\Sigma_{1\mathrm{kpc}}(z)$ evolves faster for
H$\alpha$. As a function of the Hubble parameter, $\frac{R_{\mathrm{eff,
H}\alpha}}{R_{\mathrm{eff, C}}}=1.1h(z)$ and
$\frac{\Sigma_{1\mathrm{kpc,H}\alpha}}{\Sigma_{1\mathrm{kpc,C}}}=h(z)^{1.3}$.
These functions suggest that the inside-out growth of the disk dominates the
inside-out growth of the bulge towards lower redshifts. This is supported by
the redshift evolution in EW(H$\alpha$) profiles, where there is rapid increase
in EW(H$\alpha$) with radius within the half-light radius at $z=5.3$ but only
significantly increasing EW(H$\alpha$) with radius in the outer disk at
$z=0.5$.</description><subject>Physics - Astrophysics of Galaxies</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNotj01LwzAAhnPxINMf4Mkcdm1N23zCLqOsOhkO2oLHkrUJBtOlJGFaf73b9PQenpcHHgAeMpRiTgh6kv7bnNIcI5xmjObiFhzXsDI-RLhz7hPKCJtJRiOtnWGtgrMnNcAmSg8r58czccfLaYlTvvpZ0ZQs4ZeJH_D1vWlhVW-acg_ftnUpR9hYE60K4WxUffQu9G6a78CNljao-_9dgLbatOVLsts_b8v1LpGUiYRqgTPCGD9oxA89K6TimpMe85z2XGJFVEEpwmrgBFOBFEOCEqxFhpDGfCgW4PFPew3uJm9G6efuEt5dw4tfWKRQdQ</recordid><startdate>20240426</startdate><enddate>20240426</enddate><creator>Matharu, Jasleen</creator><creator>Nelson, Erica J</creator><creator>Brammer, Gabriel</creator><creator>Oesch, Pascal A</creator><creator>Allen, Natalie</creator><creator>Shivaei, Irene</creator><creator>Naidu, Rohan P</creator><creator>Chisholm, John</creator><creator>Covelo-Paz, Alba</creator><creator>Fudamoto, Yoshinobu</creator><creator>Giovinazzo, Emma</creator><creator>Herard-Demanche, Thomas</creator><creator>Kerutt, Josephine</creator><creator>Kramarenko, Ivan</creator><creator>Marchesini, Danilo</creator><creator>Meyer, Romain A</creator><creator>Prieto-Lyon, Gonzalo</creator><creator>Reddy, Naveen</creator><creator>Shuntov, Marko</creator><creator>Weibel, Andrea</creator><creator>Wuyts, Stijn</creator><creator>Xiao, Mengyuan</creator><scope>GOX</scope></search><sort><creationdate>20240426</creationdate><title>A First Look at Spatially Resolved Star Formation at $4.8<z<6.5$ with JWST FRESCO NIRCam Slitless Spectroscopy</title><author>Matharu, Jasleen ; Nelson, Erica J ; Brammer, Gabriel ; Oesch, Pascal A ; Allen, Natalie ; Shivaei, Irene ; Naidu, Rohan P ; Chisholm, John ; Covelo-Paz, Alba ; Fudamoto, Yoshinobu ; Giovinazzo, Emma ; Herard-Demanche, Thomas ; Kerutt, Josephine ; Kramarenko, Ivan ; Marchesini, Danilo ; Meyer, Romain A ; Prieto-Lyon, Gonzalo ; Reddy, Naveen ; Shuntov, Marko ; Weibel, Andrea ; Wuyts, Stijn ; Xiao, Mengyuan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a679-6f9415778bf08bc73ae8f85c4826c8a4e5e36604ed854690e709654f9100f48d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Physics - Astrophysics of Galaxies</topic><toplevel>online_resources</toplevel><creatorcontrib>Matharu, Jasleen</creatorcontrib><creatorcontrib>Nelson, Erica J</creatorcontrib><creatorcontrib>Brammer, Gabriel</creatorcontrib><creatorcontrib>Oesch, Pascal A</creatorcontrib><creatorcontrib>Allen, Natalie</creatorcontrib><creatorcontrib>Shivaei, Irene</creatorcontrib><creatorcontrib>Naidu, Rohan P</creatorcontrib><creatorcontrib>Chisholm, John</creatorcontrib><creatorcontrib>Covelo-Paz, Alba</creatorcontrib><creatorcontrib>Fudamoto, Yoshinobu</creatorcontrib><creatorcontrib>Giovinazzo, Emma</creatorcontrib><creatorcontrib>Herard-Demanche, Thomas</creatorcontrib><creatorcontrib>Kerutt, Josephine</creatorcontrib><creatorcontrib>Kramarenko, Ivan</creatorcontrib><creatorcontrib>Marchesini, Danilo</creatorcontrib><creatorcontrib>Meyer, Romain A</creatorcontrib><creatorcontrib>Prieto-Lyon, Gonzalo</creatorcontrib><creatorcontrib>Reddy, Naveen</creatorcontrib><creatorcontrib>Shuntov, Marko</creatorcontrib><creatorcontrib>Weibel, Andrea</creatorcontrib><creatorcontrib>Wuyts, Stijn</creatorcontrib><creatorcontrib>Xiao, Mengyuan</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Matharu, Jasleen</au><au>Nelson, Erica J</au><au>Brammer, Gabriel</au><au>Oesch, Pascal A</au><au>Allen, Natalie</au><au>Shivaei, Irene</au><au>Naidu, Rohan P</au><au>Chisholm, John</au><au>Covelo-Paz, Alba</au><au>Fudamoto, Yoshinobu</au><au>Giovinazzo, Emma</au><au>Herard-Demanche, Thomas</au><au>Kerutt, Josephine</au><au>Kramarenko, Ivan</au><au>Marchesini, Danilo</au><au>Meyer, Romain A</au><au>Prieto-Lyon, Gonzalo</au><au>Reddy, Naveen</au><au>Shuntov, Marko</au><au>Weibel, Andrea</au><au>Wuyts, Stijn</au><au>Xiao, Mengyuan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A First Look at Spatially Resolved Star Formation at $4.8<z<6.5$ with JWST FRESCO NIRCam Slitless Spectroscopy</atitle><date>2024-04-26</date><risdate>2024</risdate><abstract>A&A 690, A64 (2024) We present the first results on the spatial distribution of star formation in
454 star-forming galaxies at $4.8<z<6.5$ using H-Alpha emission-line maps and
F444W imaging tracing the stellar continuum from JWST FRESCO NIRCam Slitless
Spectroscopy. Star-forming galaxies with stellar masses
$6.8\leq$log($M_{*}/\mathrm{M}_{\odot}$)$<11.1$ have positive H-Alpha
equivalent width profiles, providing direct evidence for the inside-out growth
of galaxies just after the epoch of reionisation. GALFIT is used to calculate
half-light radii, $R_{\mathrm{eff}}$ and central surface densities within 1
kiloparsec, $\Sigma_{1\mathrm{kpc}}$. At a fixed stellar mass of
log$(M_{*}/\mathrm{M}_{\odot})=9.5$, $\Sigma_{1\mathrm{kpc, H}\alpha}$ is
$1.04\pm0.05$ times higher than $\Sigma_{1\mathrm{kpc, C}}$, $R_{\mathrm{eff,
H}\alpha}$ is $1.18\pm0.03$ times larger than $R_{\mathrm{eff, C}}$ and both
$R_{\mathrm{eff}}$ measurements are less than 1 kiloparsec. These measurements
suggest the rapid build-up of compact bulges just after the epoch of
reionisation. By comparing to work done at lower redshifts with HST WFC3
Slitless Spectroscopy as part of the 3D-HST ($z=1$) and CLEAR ($z=0.5$)
surveys, we find that $R_{\mathrm{eff}}(z)$ evolves at the same pace for
H$\alpha$ and the continuum, but $\Sigma_{1\mathrm{kpc}}(z)$ evolves faster for
H$\alpha$. As a function of the Hubble parameter, $\frac{R_{\mathrm{eff,
H}\alpha}}{R_{\mathrm{eff, C}}}=1.1h(z)$ and
$\frac{\Sigma_{1\mathrm{kpc,H}\alpha}}{\Sigma_{1\mathrm{kpc,C}}}=h(z)^{1.3}$.
These functions suggest that the inside-out growth of the disk dominates the
inside-out growth of the bulge towards lower redshifts. This is supported by
the redshift evolution in EW(H$\alpha$) profiles, where there is rapid increase
in EW(H$\alpha$) with radius within the half-light radius at $z=5.3$ but only
significantly increasing EW(H$\alpha$) with radius in the outer disk at
$z=0.5$.</abstract><doi>10.48550/arxiv.2404.17629</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Astrophysics of Galaxies |
| title | A First Look at Spatially Resolved Star Formation at $4.8<z<6.5$ with JWST FRESCO NIRCam Slitless Spectroscopy |
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